{"id":9612,"date":"2021-11-23T11:50:32","date_gmt":"2021-11-23T15:50:32","guid":{"rendered":"https:\/\/www.ovivowater.com\/?post_type=product&#038;p=9612"},"modified":"2026-11-02T09:08:25","modified_gmt":"2026-11-02T13:08:25","slug":"carrousel-system","status":"publish","type":"product","link":"https:\/\/www.ovivowater.com\/en\/product\/carrousel-system\/","title":{"rendered":"Carrousel\u00ae System"},"content":{"rendered":"<div data-block_acd903009957790d13b9068ed2cdb6f4 class=\"ovivo-content-block block-image-text \">\n  <div class=\"container\">\n    <div class=\"row justify-content-between align-items-center\">\n      <div class=\"col-12 image-div col-md-6 order-md-2\">\n                              <div class=\"block-image-text__slider--wrapper\">\n              <div class=\"block-image-text__slider--slides\">\n                                                  \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselPDP_001_735x551.webp\" alt=\"Wastewater treatment plant using a carrousel system\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_002.webp\" alt=\"The aerobic zone of the carrousel system\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_001.webp\" alt=\"The influent enters the anaerobic zone mixers before entering the anerobic zone\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_003.webp\" alt=\"All aerator maintenance are done from a clean concrete deck\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_005.webp\" alt=\"Carrousel Systems consist of a \u201cracetrack\u201d style reactor basin\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselSystem_735X551_003.webp\" alt=\"Placing an Aerator in one turn yields full nutrification and BOD removal through aeration &amp;amp; mixing.\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselSystem_735X551_002.jpg\" alt=\"the lower section of the Excell\u00ae Aerator\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                    \n                  <div class=\"block-image-text__slider--slide\">\n                                                                                        \n                                              <img data-lazy=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselSystem_735X551_001.jpg\" alt=\"EliminatIR is an automated control gate that connects the aerobic zone to the anoxic zone.\" class=\"img-fluid block-image-text__slide\">\n                                                            <\/div>\n                                                <\/div>\n                              <div class=\"block-image-text__slider--nav\">\n                  <div class=\"block-image-text__slider--nav-slides\">\n                                                            <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselPDP_001_735x551.webp\" alt=\"Wastewater treatment plant using a carrousel system\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_002.webp\" alt=\"The aerobic zone of the carrousel system\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_001.webp\" alt=\"The influent enters the anaerobic zone mixers before entering the anerobic zone\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_003.webp\" alt=\"All aerator maintenance are done from a clean concrete deck\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/COD-735x551_005.webp\" alt=\"Carrousel Systems consist of a \u201cracetrack\u201d style reactor basin\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselSystem_735X551_003.webp\" alt=\"Placing an Aerator in one turn yields full nutrification and BOD removal through aeration &amp;amp; mixing.\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselSystem_735X551_002.jpg\" alt=\"the lower section of the Excell\u00ae Aerator\" class=\"img-fluid\">\n                                                <\/div>\n                                                                <div class=\"block-image-text__slider--slide\">\n                                                                                                                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/CarrouselSystem_735X551_001.jpg\" alt=\"EliminatIR is an automated control gate that connects the aerobic zone to the anoxic zone.\" class=\"img-fluid\">\n                                                <\/div>\n                                                            <\/div>\n                                      <div class=\"block-image-text__slider--arrows\">\n                      <button class=\"block-image-text__slider--arrow slick-next icon-ovivo-arrow_small\"\n                              title=\"Next\">\n                        Next\n                      <\/button>\n                      <button class=\"block-image-text__slider--arrow slick-prev icon-ovivo-arrow_small\"\n                              title=\"Previous\">\n                        Previous\n                      <\/button>\n                    <\/div>\n                                  <\/div>\n                          <\/div>\n                        <\/div>\n      <div class=\"col-12 text-div col-md-6 col-xl-5 pl-lg-5 pl-xl-3\">\n                      <div class=\"wysiwyg\">\n                \n                                  <div class=\"block-image-text__microcopy\">Advanced Oxidation Ditch for Stringent Effluent Requirements<\/div>\n<h1 class=\"block-image-text__heading\">Carrousel<sup>\u00ae<\/sup> System<\/h1>\n\n                                                  <h6 class=\"block-image-text__subheading\">The Carrousel System is a biological treatment process that removes biochemical oxygen demand (BOD), total nitrogen (TN) and total phosphorus (TP) to meet the most stringent effluent guidelines in the industry.<\/h6>\n                                                  <p>This activated sludge system achieves low TN and TP levels in domestic wastewater without chemical addition. Ovivo provides high-performance surface aerators and reliable mixers in the Carrousel System to deliver flexible biological nutrient removal (BNR) at a variety of operating conditions.<\/p>\n                                                  <a href=\"https:\/\/www.ovivowater.com\/en\/contact\/\" target=\"\"\n                     class=\"secondary-button imgblock-common_button\">\n                    <span>Contact an Expert<\/span>\n                    <i class=\"icon-ovivo-arrow\"><\/i>\n                  <\/a>\n                                              <\/div>\n          <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n\n<div data-block_e1b535cf1c44ae16a85d82c4078fa938 class=\"ovivo-content-block anchor-nav-content__wrapper owproduct-tblcontent-wraper\">\n    <div class=\"anchor-nav-content__nav--sticky\">\n        <div class=\"container\">\n            <div class=\"row\">\n                <div class=\"col-12 p-0 pr-lg-3 pl-lg-3\">\n                    <ul class=\"nav nav-tabs anchor-nav-content__nav--listing fc-anchor-nav-content-nav\">\n                                                                                    <li class=\"nav-item anchor-nav-content__nav--single\" role=\"presentation\">\n                                    <a class=\"nav-link active \" href=\"#pills-0\">Features &amp; Benefits<\/a>\n                                <\/li>\n                                                            <li class=\"nav-item anchor-nav-content__nav--single\" role=\"presentation\">\n                                    <a class=\"nav-link \" href=\"#pills-1\">How it works<\/a>\n                                <\/li>\n                                                            <li class=\"nav-item anchor-nav-content__nav--single\" role=\"presentation\">\n                                    <a class=\"nav-link \" href=\"#pills-2\">Technical Information<\/a>\n                                <\/li>\n                                                        <li class=\"nav-item anchor-nav-content__nav--single related\" role=\"presentation\">\n                                <a class=\"nav-link\" href=\"#pills-related\">Related Products<\/a>\n                            <\/li>\n                                            <\/ul>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n    <div class=\"anchor-nav-content__tabs\">\n                                                                            <div class=\"anchor-nav-content__tab ownoprod-section otablecontent-1\" id=\"pills-0\" name=\"pills-0\" >\n                    <div class=\"container\">\n                        <div class=\"row\">\n                            <div class=\"col-12\">\n                                <div id=\"accordion-pills-0\" role=\"tablist\" aria-multiselectable=\"true\">\n                                    <div class=\"card\">\n                                        <div class=\"card-header\" role=\"tab\" id=\"section1HeaderId\">\n                                            <h2 class=\"mb-0\">\n                                                <a class=\"anchor-nav-content__tab--title\" data-toggle=\"collapse\" data-parent=\"#accordion-pills-0\" href=\"#accordion-content-0\" aria-expanded=\"true\" aria-controls=\"#accordion-content-0\">\n                                                    Features &amp; Benefits\n                                                <\/a>\n                                            <\/h2>\n                                        <\/div>\n                                                                                                                                <div id=\"accordion-content-0\" class=\"in collapse show\" role=\"tabpanel\" aria-labelledby=\"section1HeaderId\">\n                                                <div class=\"card-body\">\n                                                    <div class=\"anchor-nav-content__tab--content\">\n                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        <div class=\"row justify-content-center is_last\">\n                                                                        <div class=\"col-12 col-lg-10 col-xl-9 col-xxl-8\">\n                                                                            <div data-block_e1b535cf1c44ae16a85d82c4078fa938 class=\"ovivo-content-block block-generic-content__wrapper\">\n    <div class=\"container\">\n        <div class=\"row justify-content-center\">\n            <div class=\"col-12  \">\n                <div class=\"owrow\">\n                                            <div class=\"block-generic-content__single wysiwyg \">\n                                                                                        <p>Ovivo has been designing and installing Carrousel Systems for over half a century and has over 800\u00a0installations worldwide. We are consistently working to develop innovative and efficient processes, equipment and process control strategies to enhance the Carrousel System. These efforts set the standard in advanced oxidation ditch technology and establish a level of excellence in performance and energy efficiency in the industry.<\/p>\n<h3>How is the Carrousel System different?<\/h3>\n<p>The Carrousel System uses the unique Excell<sup>\u00ae<\/sup> Aerator, a high-efficiency surface impeller connected to a floor-scouring lower impeller. This impeller combination provides superior aeration turndown capabilities while still mixing the basin efficiently. This enables plants to operate from full aeration power down to 10 to 20\u00a0percent of the nameplate power to efficiently treat low loads and avoid over aeration in the biological system. The Excell Aerator delivers the best dissolved-oxygen control, mixing efficiency and energy savings on the market.<\/p>\n<p>When total nitrogen removal is required, Carrousel denitIR<sup>\u00ae<\/sup> Systems with anoxic zones are recommended. These systems include Ovivo\u2019s patented EliminatIR\u2122 gate, which is an innovative automated control gate placed in a channel that connects the aerobic zone to the anoxic zone. This gate fine-tunes the nitrate recycle flow to the anoxic zone and eliminates the need for a Mixed Liquor Suspended Solids (MLSS) pump. A modified version of this gate, the divertIR\u2122 gate, alternates the delivery of influent flow to different BNR zones in the specialised Carrousel AlternatIR\u2122 System for biological phosphorus removal.<\/p>\n<p>Ovivo\u2019s advanced Oculus\u2122 System, for process control, has evolved over the last decade to enhance and optimise the Carrousel System. It combines the customised control system with carefully selected process instruments to save power and maximise nutrient removal in the Carrousel System. Ovivo provides recommended pre-sets for each plant\u2019s start-up and instructs operators in a variety of easy-access operating strategies that make it simple and low-risk to fine-tune their operation as plant loading increases over time. Remote monitoring by Ovivo process engineers is also available with the Oculus System to help and support operators.<\/p>\n\n                                                    <\/div>\n                                    <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n                                                                        <\/div>\n                                                                    <\/div>\n                                                                                                                                                                        <\/div>\n                                                <\/div>\n                                            <\/div><!--accordion-content-0-->\n                                                                                            <div class=\"anchor-nav-content__tab--downloadable_ressources\">\n                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    <div class=\"row justify-content-center \">\n                                                        <div class=\"col-12\">\n                                                            <div data-block_e1b535cf1c44ae16a85d82c4078fa938 class=\"ovivo-content-block block-digital-assets__wrapper\">\n            <div class=\"container\">\n                <div class=\"row\">\n                    <div class=\"col-12 \">\n                        <h4 class=\"block-digital-assets__title\">\n                            Downloadable Resources\n                        <\/h4>\n                    <\/div>\n                <\/div>\n            <\/div>\n            <div class=\"container\">\n                <div class=\"row justify-content-center\">\n                                            <div class=\"col-12 col-md-6 col-lg-3\">\n                            <a href=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/OxiDationDitch_Bro-09-2024.pdf\" target=\"_blank\" class=\"block-digital-assets__single\">\n                                <div class=\"block-digital-assets__single--title\">\n                                    Carrousel\u00ae Systems\n                                <\/div>\n                                <div class=\"block-digital-assets__single--sub-title\">\n                                    BROCHURE\n                                <\/div>\n                                <div class=\"block-digital-assets__single--description\">\n                                    Maximum treatment, minimum effort\n                                <\/div>\n                            <\/a>\n                        <\/div>\n                                            <div class=\"col-12 col-md-6 col-lg-3\">\n                            <a href=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/Ovivo-Case-History-St-Peters-MO-Carrousel-In-Channel-denitrification-2011.pdf\" target=\"_blank\" class=\"block-digital-assets__single\">\n                                <div class=\"block-digital-assets__single--title\">\n                                    Carrousel\u00ae System &#8211; Case History &#8211; St. Peters, MO\n                                <\/div>\n                                <div class=\"block-digital-assets__single--sub-title\">\n                                    CASE STUDY\n                                <\/div>\n                                <div class=\"block-digital-assets__single--description\">\n                                    Facing new treatment limits in 1988, the City of St.&hellip;\n                                <\/div>\n                            <\/a>\n                        <\/div>\n                                            <div class=\"col-12 col-md-6 col-lg-3\">\n                            <a href=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/Carrousel-Retrofits.pdf\" target=\"_blank\" class=\"block-digital-assets__single\">\n                                <div class=\"block-digital-assets__single--title\">\n                                    Successful Installations of Carrousel\u00ae Systems\n                                <\/div>\n                                <div class=\"block-digital-assets__single--sub-title\">\n                                    CASE STUDY\n                                <\/div>\n                                <div class=\"block-digital-assets__single--description\">\n                                    See how with over 700 installations, we have continuously improved&hellip;\n                                <\/div>\n                            <\/a>\n                        <\/div>\n                                    <\/div>\n            <\/div>\n        <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                                <\/div>\n                                                                                                                        <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                                                            <div class=\"anchor-nav-content__tab ownoprod-section otablecontent-2\" id=\"pills-1\" name=\"pills-1\" >\n                    <div class=\"container\">\n                        <div class=\"row\">\n                            <div class=\"col-12\">\n                                <div id=\"accordion-pills-1\" role=\"tablist\" aria-multiselectable=\"true\">\n                                    <div class=\"card\">\n                                        <div class=\"card-header\" role=\"tab\" id=\"section1HeaderId\">\n                                            <h2 class=\"mb-0\">\n                                                <a class=\"anchor-nav-content__tab--title\" data-toggle=\"collapse\" data-parent=\"#accordion-pills-1\" href=\"#accordion-content-1\" aria-expanded=\"true\" aria-controls=\"#accordion-content-1\">\n                                                    How it works\n                                                <\/a>\n                                            <\/h2>\n                                        <\/div>\n                                                                                                                                <div id=\"accordion-content-1\" class=\"in collapse show\" role=\"tabpanel\" aria-labelledby=\"section1HeaderId\">\n                                                <div class=\"card-body\">\n                                                    <div class=\"anchor-nav-content__tab--content\">\n                                                                                                                                                                                                                                                            <div class=\"row justify-content-center is_last\">\n                                                                        <div class=\"col-12 col-lg-10 col-xl-9 col-xxl-8\">\n                                                                            <div data-block_e1b535cf1c44ae16a85d82c4078fa938 class=\"ovivo-content-block block-generic-content__wrapper\">\n    <div class=\"container\">\n        <div class=\"row justify-content-center\">\n            <div class=\"col-12  \">\n                <div class=\"owrow\">\n                                            <div class=\"block-generic-content__single wysiwyg \">\n                                                                                        <h3>Multiple stages for complete treatment<\/h3>\n<p>The Carrousel System begins with the aerobic stage. The Excell Aerator introduces oxygen into the mixed liquor to meet the oxygen demand in the system. Oxygen allows organisms to thrive and consume BOD and oxidise ammonia. This stage is well mixed and can operate at a wide range of aerator horsepower.<\/p>\n<p>The second stage is the anoxic stage, provided for nitrate removal. This stage is located upstream of the aerobic stage and is devoid of dissolved oxygen. The natural biological process that occurs here, denitrification, creates nitrogen gas from nitrate. This gas is released into the atmosphere (which is already 78\u00a0percent nitrogen gas) as flow reaches the aerobic stage.<\/p>\n<p>The third stage is the anaerobic stage. In this area, devoid of dissolved oxygen and nitrate, organisms responsible for phosphorus removal are developed.<\/p>\n<p>The fourth and fifth stages provide nitrate removal to very low levels (second anoxic stage) and subsequent removal of nitrogen gas (reaeration stage), respectively.<\/p>\n\n                                                    <\/div>\n                                    <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n                                                                        <\/div>\n                                                                    <\/div>\n                                                                                                                                                                        <\/div>\n                                                <\/div>\n                                            <\/div><!--accordion-content-1-->\n                                                                                                                        <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                                                            <div class=\"anchor-nav-content__tab ownoprod-section otablecontent-3\" id=\"pills-2\" name=\"pills-2\" >\n                    <div class=\"container\">\n                        <div class=\"row\">\n                            <div class=\"col-12\">\n                                <div id=\"accordion-pills-2\" role=\"tablist\" aria-multiselectable=\"true\">\n                                    <div class=\"card\">\n                                        <div class=\"card-header\" role=\"tab\" id=\"section1HeaderId\">\n                                            <h2 class=\"mb-0\">\n                                                <a class=\"anchor-nav-content__tab--title\" data-toggle=\"collapse\" data-parent=\"#accordion-pills-2\" href=\"#accordion-content-2\" aria-expanded=\"true\" aria-controls=\"#accordion-content-2\">\n                                                    Technical Information\n                                                <\/a>\n                                            <\/h2>\n                                        <\/div>\n                                                                                                                                <div id=\"accordion-content-2\" class=\"in collapse show\" role=\"tabpanel\" aria-labelledby=\"section1HeaderId\">\n                                                <div class=\"card-body\">\n                                                    <div class=\"anchor-nav-content__tab--content\">\n                                                                                                                                                                                                                                                                                                                                                                                                                                                    <div class=\"row justify-content-center \">\n                                                                        <div class=\"col-12\">\n                                                                            \n                                                                                                                                                        <div data-block_e1b535cf1c44ae16a85d82c4078fa938 class=\"ovivo-content-block block-image-text owtable-content-imagetext\">\n  <div class=\"container\">\n    <div class=\"row justify-content-between align-items-center\">\n      <div class=\"col-12 image-div col-md-6 order-md-2\">\n                              <div class=\"block-image-text__single mb-0\">\n                                            <img decoding=\"async\" src=\"https:\/\/www.ovivowater.com\/app\/uploads\/2026\/09\/Carrousel_735X551_001.jpg\" alt=\"The Carrousel\u00ae Process Family\" class=\"block-image-text__slide\">\n                          <\/div>\n                        <\/div>\n      <div class=\"col-12 text-div col-md-6 col-xl-5 pl-lg-5 pl-xl-3\">\n                  <div class=\"wysiwyg\">\n            \n                                  <p>Six different flow sheets, including Bardenpho<sup>\u00ae<\/sup> systems, are currently available. All of them have the unique free internal recycle to maximise TN removal. Our popular Carrousel denitIR system targets BOD and total nitrogen removal (as low as 3\u00a0mg\/l\u00a0TN).\u00a0 Also available is the flexible Carrousel AlternatIR\u2122 system which removes BOD, nitrogen and phosphorus in a two-stage system.\u00a0 The more traditional A2C\u2122 Carrousel system has dedicated anaerobic zones for biological phosphorus removal.<\/p>\n<p>Ovivo provides extensive process evaluation for unique process requirements, such as:<\/p>\n<ul>\n<li>Adding new stages to existing single-stage Carrousel Systems for stricter nutrient limits<\/li>\n<li>Replacing existing Carrousel System aerators with higher-horsepower aerators for greater capacity (\u201cwet\u201d retrofits are often possible)<\/li>\n<li>Adding volume to existing Carrousel Systems using higher walls or extended tank lengths when greater capacity is required<\/li>\n<li>Wrapping Carrousel Systems around clarifiers<\/li>\n<li>Retrofitting concentric-ring and sloped-wall oxidation ditches with Carrousel System equipment<\/li>\n<\/ul>\n\n                                                                  <p>Ovivo sells the Carrousel<sup>\u00ae<\/sup> system under a license agreement. Carrousel<sup>\u00ae<\/sup> is a registered trademark of Royal HaskoningDHV<\/p>\n                                                              <\/div>\n          <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n                                                                        <\/div>\n                                                                    <\/div>\n                                                                                                                                                                                                                                                            <div class=\"row justify-content-center is_last\">\n                                                                        <div class=\"col-12\">\n                                                                                                                                                        <div data-block_e1b535cf1c44ae16a85d82c4078fa938 class=\"ovivo-content-block 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High performance AEROSTRIP fine pore diffusers reduce aeration energy and extending the life of&hellip;\n                                    <\/div>\n                                    <div class=\"generic-tiles__single--link\">\n                                        <span>Read more<\/span>\n                                        <i class=\"icon-ovivo-arrow\"><\/i>\n                                    <\/div>\n                                <\/div>\n                            <\/a>\n                        <\/div>\n                                        \n                    \n                                                   \n                    <\/div>\n    <\/div>\n                                                    <\/div>\n                                                <\/div>\n                                            <\/div>\n                                        <\/div>\n                                    <\/div>\n                                <\/div>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                        <\/div>\n<\/div>\n\n\n<div data-block_60525e617e57e class=\"ovivo-content-block block-tiles__wrapper pt-5\">\n    <div class=\"container\">\n        <div class=\"row justify-content-center \">\n                                            \n                                                                                    <div class=\"col-12 col-lg-4 mb-4\">\n                                                    <a href=\"https:\/\/www.ovivowater.com\/en\/services\/\" target=\"\" class=\"generic-tiles__single alt-style {}\">\n                                <div class=\"generic-tiles__single--content\">\n                                                                            <div class=\"generic-tiles__single--title\">\n                                            Parts &amp; 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We&#8217;ve got you covered.\n                                        <\/div>\n                                                                        <div class=\"generic-tiles__single--link\">\n                                        <span>Contact an Expert<\/span>\n                                        <i class=\"icon-ovivo-arrow\"><\/i>\n                                    <\/div>\n                                <\/div>\n                            <\/a>\n                                                                    <\/div>\n                                    <\/div>\n    <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"template":"","product_category":[27,30],"class_list":["post-9612","product","type-product","status-publish","hentry","product_category-aeration","product_category-biological-treatment"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Carrousel\u00ae System for Advanced BNR Treatment | Ovivo<\/title>\n<meta name=\"description\" content=\"The Carrousel\u00ae System delivers advanced BNR\u2014removing BOD, TN, and TP without chemicals. 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