CS-BIO – RWO Water Technologies RWO, part of the ERMA TECH GROUP of Companies Skip to content FOLLOW RWO: Search for: Toggle Navigation About us About RWO History Applications Bilge Water Sewage Fresh Water & Process Water Ballast Water Products Top-sellers OWS-COM CS-BIO Bilge water OWS-COM OWS-PT Bilge Economizer CBM+ SFU Sewage CS-BIO CS-MBR CS-VAC Grease Interceptor Fresh & Process ACCuRem Chemical Dosing Units MIA-COM SAF-COM SOE-COM SRO-COM UVS-COM After Sales & Service Original Spare Parts After Sales & Services OWS Service & OCM Calibration Insights Library Newsroom Contact us Careers Get in touch Online Spare Parts Request CS-BIO CleanSewage Bio: Biological sewage treatment Home / Products / CS-BIO CS-BIO admin 2022-02-02T12:08:55+02:00 Product List Biological Sewage Treatment maximising onboard space Overview Resources Overview CleanSewage Bio is designed to minimize the attention with sewage treatment to the lowest level possible. The accessibility from one side allows ship designers to plan space in the engine room on a whole new level. The system is part of RWO’s leading Total Water Management offer.  Operators and crew are pleased with a hygienic no-touch-cleaning system, an intuitive status control allows checking at a glance, whether the system is running or intervention is necessary. Thereby CleanSewage Bio works with a proven biological treatment technology compartmentalized in 3 process steps that ensures the highest water quality according to MEPC.227(64).   How it works: 1. RWO CleanSewage Bio works with a biological treatment technology compartmentalized in 3 process steps. As a first step the sewage is separated from heavier solids and particles causing clogging or damages in further process steps. In the Moving-Bed Biofilm Reactor (MBBR) organic matter is degraded into carbon dioxide and water by microbial activity. Biofilm carriers inside are clustered in cages, which significantly eases handling and maintenance. Aeration stabilises the biomass and prevents harmful and dangerous gases from forming. 2. In the Clarifier residual solids and suspended activated sludge are separated by sedimentation and turned back into the MBBR. The clean sewage flows into the Disinfection chamber. 3. Here a chlorine-based disinfection chemical is added. The clean water is then pumped overboard. To meet the limit values set for the chlorine content, a special neutralising agent, LC35, is dosed prior to the discharge pump. Treated excess sludge, reduced in volume, can be discharged or collected in an external tank. Due to the biomass retained by the MBBR process, sludge discharge does not interfere with the performance of the plant.  Key Features & Benefits Safe: · Integrated mechanical pre-treatment · No harmful or flammable chemicals · Certificate of Type Approval for Sewage Treatment Plants according IMO MEPC.227(64) issued under the authority of the Federal Republic of Germany by BG Verkehr Easy to operate: · No-touch-system for hygienic sludge discharge · 100% control through individual switches for every component. · Fast restart after maintenance due to biomass carrier in cages Small: · No holding tank necessary · Up to 25% less space demand through unique one-side access Suitable for black & grey water. Compatible with all vacuum systems. Resources CS-BIO Brochure Product Range CS-VAC CS-VAC Vacuum maceration pump station for marine sewage treatment plants. CS-MBR CS-MBR Advanced water purification and advanced wastewater treatment from RWO. GREASE INTERCEPTOR GREASE INTERCEPTOR State-of-Art Galley Water Pretreatment Products TRAINING Services Impressum Privacy Policy Terms & Conditions Cookie Policy Purchasing Terms & Conditions (EN) Purchasing Terms & Conditions (DE) © Copyright 2025 | All Rights Reserved. | Powered by ERMA FIRST. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent. Cookie Settings Accept All Manage consent Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience. Necessary Necessary Always Enabled Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously. Cookie Duration Description cookielawinfo-checkbox-analytics 11 months This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". cookielawinfo-checkbox-functional 11 months The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". cookielawinfo-checkbox-necessary 11 months This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". cookielawinfo-checkbox-others 11 months This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. cookielawinfo-checkbox-performance 11 months This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". viewed_cookie_policy 11 months The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. Functional Functional Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Performance Performance Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Analytics Analytics Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Advertisement Advertisement Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads. Others Others Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. SAVE & ACCEPT Go to Top