Marine sewage treatment systems. Marine Series IMO & USCG Certified.

Marine sewage treatment systems Home; About; Products & Services. The Type II MSD systems are powerful, flow-through Mar 8, 2025 · A marine sanitation device (MSD) is “any equipment for installation on board a vessel which is designed to receive, retain, treat, or discharge sewage, and any process to ECOmar Marine Sewage Treatment parts, equipment and installs of black water systems from Fort Lauderdale, Florida. Flexible design allowes standard Clarimar MF configuration to be 5 days ago · MarineFAST ® Systems are commonly referred to as a Type II (two) MSD biological (aerobic digestion) treatment system. Marine Sanitation Device. The Hamworthy STP is known to be the most cost-effective and safe answer for processing wastewater at sea. AT-10STP; AT-10STP-D; SEWAGE TREATMENT With over 100 years experience in the marine industry, Victor Marine’s sewage treatment plants are specifically engineered for the marine industry. Suitable for all kinds of ships and ocean engineering. 1 million in 2022. The waste is then pumped directly YSSG provide marine sewage treatment systems designed for superyachts, working to environmental regulations at all times. Marine Series 100 to 15000 GPD; redFox Environmental can Apr 10, 2015 · HEADHUNTER Marine Sewage Treatment Systems. com 5 days ago · SEWAGE TREATMENT SYSTEMS. 3 days ago · The basic function of marine sewage treatment systems is to speed up the natural processes by which water is purified. Sea water can be polluted by pathogens, nutrients, detergents, pesticides and heavy metals. ACO Marine specializes in delivering innovative and marine sewage treatment systems, sewage treatment plant equipment: HANSUN Sewage Treatment Plant ST-50U ST-20U ST-30U . Date: Dec 21, 2020 . What are marine sewage treatment plants? Sewage treatment plants allow you to treat and process grey and 2 days ago · Marine sewage treatment plant is the machinery sets on a ship that treats the sewage generated by living and machines to make it capable of being discharged in the sea. 7 Billion by 2030, growing at a CAGR of 8. Tel: 954-463-0003. 2 for passenger vessels operating in IMO designed special areas as Aug 23, 2023 · According to our LPI (LP Information) latest study, the global Marine Sewage Treatment System market size was valued at US$ 7368. Jun 3, 2019 · Wärtsilä is the world’s leading manufacturer of marine sewage treatment systems. Find your wastewater treatment system easily amongst the 46 products from the leading brands (MARTIN, Alfa Laval Mid Europe, Aco marine, ) on NauticExpo, the boating and maritime industry specialist for your professional purchases. Marinfloc designs custom sewage treatment systems that handle both black and grey water, Treatment systems are chemical injected system that provides automatic onboard treatment and legal discharge of treated waste within the three mile limit. All your boat supplies and boating needs, including marine electronics, sailing Dec 21, 2020 · Marine Sewage Treatment System . Skip to content 606-271-2711 | (305) 776-4037 | info@envmar. The Marine Model is designed, manufactured and tested to meet or Hamann AG have been supplying marine sewage treatment plants for over 40 years. ⑼ Geometric mean – the nth root of the product of n numbers. Proudly Defender Marine offers boat supplies, inflatable boats and outboard motors from top manufacturers. . Headhunter’s team of engineers, fabricators, and wastewater specialists work together to provide the most innovative and efficient sewage treatment solutions. Our patented sewage treatment system is the only 100% aerobic household Nov 26, 2024 · As a result, marine sewage treatment systems are required to lessen the environmental impact. Our systems are compact and lightweight and are easy to install in all Feb 20, 2025 · SEWAGE TREATMENT SYSTEM. The basic function of marine sewage 3 days ago · Wärtsilä offers a complete, integrated, wet and dry waste treatment package for any type of vessel. txt) or read online for free. and Dana Casbeer. Home; Jan 4, 2025 · Ship engineers make sure these rules are followed by properly maintaining the sewage systems and especially the sewage treatment plant aboard. 227(64), the International Maritime Organization formally adopted a new standard for the treatment of offshore sewage. Sea Sewage Treatment Systems Cleaning. More specifically, the With this vision at heart, Holland Marine Services Amsterdam proudly presents its groundbreaking line of advanced biological sewage treatment systems. Other stories from March 2015 issue Content. ⑽ Sewage means: ① drainage and other wastes from 3 days ago · RedFox marine sewage treatment systems are US Coast Guard Approved according to 33CFR Part 159. All Marine Solutions designs, manufactures, installs and services the Mini-San. You want the sewage treatment process to be streamlined Jun 21, 2016 · The IMO Marine Environmental Protection Committee resolution applies to all sewage treatment systems installed onboard on or after January 1, 2016. Compliant in Every Port, Harbor, Ocean and Sea With MEPC. At Severn Trent De Nora we understand the importance of providing Hamann sewage treatment plants were introduced to Australia by Marine Plant Systems in the early 1990's with the supply and sustainment of shock-proof anti-magnetic solutions for the Sewage Treatment Plants: Comprehensive Guide AUTOMATION Understanding Sewage Treatment Plants Sewage Treatment Plants (STPs) are vital systems onboard ships and Jul 25, 2024 · SEWAGE TREATMENT PLANTS Victor Marine Ltd are specialists in the design & manufacture of FBBR (Fixed Bed Biofilm Reactor) biological sewage treatment plants. 227(64) by Bureau Veritas. We think the most sensible sanitation system design gives you 3 days ago · MarineFAST ® Systems are commonly referred to as a Type II (two) MSD biological (aerobic digestion) treatment system. The new HL Cont Plus Compact 0125 is breaking records! It is the smallest sewage treatment plant type approved by the IMO according to MEP May 11, 2019 · Marine Sewage Treatment System Simple and effective. Wärtsilä Water & Waste mini-MBRs are ideal for use on smaller cruise and naval vessels, ferries with up to a 200 complement, as well as FPSOs and Jul 7, 2023 · Importance of Marine Wastewater Treatment Systems. Marine sewage treatment systems can be complicated or they can be simple. Coast Guard certification of Microphor's unique biological marine sewage treatment Mar 29, 2023 · MARINE SEWAGE TREATMENT SYSTEMS 3380 SW 11th Avenue Fort Lauderdale, Florida 33315 Phone: +1 954-581-6996 Fax: +1 954-587-0403 Sewage treatment systems for Vessels and Marine Structures. The Type II Marine Sanitation (MSD) is an effective offshore sewage treatment system for Yachts, Houseboats, Workboats, Pushboats, or Tugboats. Louis, MO for salt-based tableting and water treatment The global marine sewage treatment system market size was valued at USD 1. Primary sewage treatment is primarily a physical process Mar 6, 2025 · OMNIPURE™ apparatus includes three lines of field-proven electrolytic offshore wastewater treatment designs – MC/MXMP and Series 64G2 - that carries a legacy of more 1 day ago · MarineFAST ® Systems are commonly referred to as a Type II (two) MSD biological (aerobic digestion) treatment system. A chemical is added to the treatment tank that sanitises the These systems are provided in polyethlene, marine grade aluminum or steel construction with a durable, flexible ceramic, epoxy coating for superior corrosion protection. Comparison of Marine Sewage Treatment Systems - Free download as PDF File (. These systems utilize advanced technologies, HAMANN AG is a worldwide recognised supplier of marine sewage system components. May 30, 2022 · Electroscan is the new generation water and waste treatment that has replaced the first Lectra/San System. We offer in three categories ACO Marine specializes in delivering innovative and tailored wastewater treatment solutions, designed specifically for the maritime industry. POB Sewage Treatment Plant (STP) is delivered, transferred into the vessel, welded, assembled and tested on board in couple of days - including the removal of the old system. These sea water are shared ECOMAR S – SEWAGE TREATMENT SYSTEMS. OMNIPURE Series 64 systems are the original marine The ACO Maripur NF range of sewage treatment plants are fully certified to IMO MEPC 227 (64) including section §4. Ecomar S; Ecomar SX; 70s. This system device Mar 10, 2022 · Marine pollution caused by the substandard discharge of domestic sewage from ships has received considerable attention in recent years. Specialized Sewage Marine water and waste management solutions. Safe and easy treatment of biological waste, for offshore platforms and marine vessels of any size with crews of 2-500. C. 227(64), the International Maritime The impact of sewage on marine environment is a concern. The wastewater can only The LX-Series comprises certified type II marine sanitation devices (MSDs), ideal for small vessels. Now in keeping with a tradition of providing economical and dependable Mar 10, 2022 · The standard of “Marine sewage treatment equipment specification” (GB/T 10833) was revised in 2015. About marine sewage Ship Black water and Sewage Treatment Plant Sep 28, 2023. Thus, the research and application May 31, 2024 · System diagram of a sewage treatment plant 3 GENERAL 3. For over four decades the Wärtsilä Super Trident sewage treatment plant has been widely HAMANN sewage treatment plants (STP), or marine sanitation devices (MSD) and advanced wastewater treatment systems (AWTS) are designed to process both blackwater and Sewage Treatment Plants and Vacuum Toilet Systems; Fabrication and Installations; Bilge/ Oily Water Separators; All Types of Pumps: Services, Repairs and Installations VIC MARINE Aug 12, 2024 · Sewage Treatment Plant, Electro-chemical based sewage wastewater treatment system. 1% from 2024 to 2030. Tested in conditions Sewage Treatment Plant (STP) is delivered, transferred into the vessel, welded, assembled and tested on board in couple of days - including the removal of the old system. S. Marine Series IMO & USCG Certified. V. Marine Vessels and Offshore Platforms. owners, business and Mar 7, 2025 · The advantages and reliability of FAST sewage treatment systems are inherent in the FAST process. More improvements from Humphrey Marine! For models 10A, 10B, 12. Our Vanish system utilizes the most accepted processes, contact us today. The system has been approved to the latest IMO standard MBR Marine sewage treatment plants Martin Systems offers four different systems for wastewater treatment in the maritime sector: BMA N-Line Standard with approval according to Find your ship treatment system easily amongst the 122 products from the leading brands (Johnson Controls Denmark, Optimarin, MARTIN, ) on NauticExpo, the boating and maritime Dec 30, 2024 · can be used in USCG certified FAST marine sewage treatment systems. ECOMAR > Download brochure. Headhunter’s team of engineers, fabricators, and wastewater specialists work together to provide the most Apr 3, 2013 · Series M55 Marine Sewage Treatment System Selected for Use Aboard Australian Patrol Boats. 5 Billion in 2022 and is projected to reach USD 2. A chemical is added to the treatment tank that sanitises the waste to 99%. Marine Feb 28, 2020 · The OMNIPURE™ Series 64 G2 Marine Sewage Treatment System. The Hamworthy STP is known to be the most cost-effective and safe answer for 5 days ago · Marine Sewage Treatment Systems. MEPC Stella has vast experience in servicing and installing marine toilets as well as sewage treatment systems including MARPOL approved units. 227(64) standard for worldwide acceptance Since the early 1980's Royalflush toilets CG Approves Microphor Sewage Treatment System Maritime Reporter, Jun 15, 1976 #17 ; The U. 227(64), the International Maritime Organization (IMO) formally adopted a new discharge standard for the treatment of offshore and marine sewage. Marine Series 100 to 15000 GPD; redFox Environmental can 3 days ago · Wärtsilä has a proven track-record in developing technology to meet these anticipated environmental standards. Authors: Sehul Patel, P. EVAC Marine Plant Systems supplies Hamann AG, Jets AS toilets, Jowa AB Sweden, Brannstrom AB Sweden, EVAC, Cathelco, Metos, Cleemann, Ocean Clean, Metizoft AS Hamann Sewage The Sani-Loo ® system comes with complete installation instructions so you can install it yourself or by an approved installer. E. 9 billion by 2032, growing at a compound annual growth rate Nov 26, 2024 · With OMNIPURE Marine Sewage Treatment systems all your vessel will leave behind is water. These systems are Jun 3, 2019 · Wärtsilä is the world’s leading manufacturer of marine sewage treatment systems. 227(64) Including § 4. In wastewater treatment, there are various types of flotation 3 days ago · SEWAGE TREATMENT SYSTEMS. With growing Find your yacht treatment system easily amongst the 27 products from the leading brands (OMPECO, Heinen & Hopman, Elkuch Group, ) on NauticExpo, the boating and maritime industry specialist for your professional purchases. Flexible design OMNIPURE Marine Sewage Treatment OMNIPURE Series 64 G2 System With MEPC. Designed and tested to meet the latest Jun 3, 2019 · Wärtsilä is the world’s leading manufacturer of marine sewage treatment systems. The discharge left from the system is safe for the environment, plus it also has reduced the power consumption by The Sani-Loo boat sewage treatment, marine sanitation system treats macerated toilet waste as it enters the treatment tank. pdf), Text File (. is the designer, producer and supplier of the smallest design Biological Sewage Treatment units, Grease Separators, Grey Water tanks, Ejector type Vacuum Toilet systems and supplier of OMNIPURE™ Series 64 Marine Sewage Treatment System. It is at least as effective if not more effective than chlorine but does not result in discharge of Sewage Treatment Plant Used to treat the domestic sewage produced in the operation of ships and offshore platforms. It is a winner where consistently good performance is required, where Oct 2, 2024 · Learn how these powerful microorganisms improve water quality, reduce odors. These lightweight systems use strong, DOT-certified, HDPE and XLPE tanks that Jan 15, 2020 · sewage system provides effective treatment of black and gray water through a certified process. 227(64) The TIDALWAVE HMX® Marine Sewage Treatment Plant (STP) are IMO Approved for worldwide compliance with MEPC. Optimize your vessel's sewage treatment system with STP Solupak for superior performance. 227(64), including of Scienco/FAST provides superior treatment systems that assist their customers around the world to perform at the highest safety, compliance and reliability standards. The document compares different marine sewage treatment systems and regulations. or I. The Type II MSD systems are powerful, flow-through Feb 13, 2012 · COMPARISON OF MARINE SEWAGE TREATMENT SYSTEMS 1 COMPARISON OF MARINE SEWAGE TREATMENT SYSTEMS Žarko Koboević, dipl. 5 mg/L “Disinfectant Residual” in the The marine sewage treatment system is a key equipment under Annex IV of the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78). The Marine Model is HAMANN offers a full range of high quality sewage treatment plants (STP), also referred to as marine sanitation devices (MSD) for offshore and inland vessels. Without them, pollutants Mar 5, 2025 · When you’re looking for sanitation units for your boat, you’re likely looking to achieve some pretty basic goals. The Sewage Treatment Plants series, type designed as ECOMAR S, is certified in accordance with the Resolution MEPC. Systems for converting waste water into clean reusable water using Electro-chemical We are proud to be part of the ACO Group, a global leader in water technology with a rich heritage and a strong presence worldwide. Nov 26, 2024 · More than three miles from the coast it is legal to discharge raw (untreated) waste overboard, either directly from the toilet or by emptying the holding tank. The Type II MSD systems are powerful, flow-through 5 days ago · Wärtsilä sewage treatment units - also known as 'Wartsila Hamworthy Super Trident' - are certified to meet IMO MEPC 227(64) guidelines. ⑽ Sewage means: ① drainage and other wastes from any We make clever waste water treatment solutions for residential, marine, and commercial applications. OMNIPURE understands the importance of providing safe and effective MARINE SEWAGE TREATMENT PLANTS to the treatment system. 5 days ago · MarineFAST® Systems, are powerful, flow-through, Type II (two) Marine Sanitation Devices that are biological (aerobic digestion) treatment systems. Humphrey Marine has been a recognized leader in the field of sewage treatment for years. ROCHEM® systems are designed to treat combined black and grey waste waters from sewage, galley (after grease trap unit), Dec 30, 2020 · Clean Marine Solutions in Wilmington, NC is a leader in marine wastewater treatment. Receive further 1 day ago · With over 65 years of history unlike any other, the origins of SCIENCO® & FAST® can be traced back to the 1940’s in St. The Type II MSD systems are powerful, flow-through discharge Mar 31, 2015 · Headhunter’s team of engineers, fabricators, and wastewater specialists work together to provide innovative and efficient sewage treatment solutions. Coast Guard certified Type II Marine Sanitation Devices (MSD) in accordance with 33CFR Part 159. AT-10STP; AT-10STP-D; AT-18STP; AT-25STP-D; Jan 10, 2024 · We are truly in the sewage treatment business, we have been building marine sewage treatment systems for over 40 years and we will continue to support our customers in Feb 18, 2025 · Selmar Technologies offers a full range of products and services for the marine industry and for civil and industrial water treatment: reverse osmosis desalinators for sea water Tailored Sewage Treatment Plants (STP) for Compliance with MEPC. Designed and tested to meet the latest 5 days ago · Hamworthy sewage treatment plants (STPs) are a standard in the marine & offshore market. (910) Equipment Store Your first port of call for premium marine equipment Technically engineered products designed, manufactured and distributed for marine and off grid applications. Toggle navigation Top Menu. Ing. Marine Series 100 to 15000 GPD; redFox Environmental can provide you quote requests on parts and 5 days ago · We also supply smaller, more compact versions of our MBR systems. Find out about sewage treatment plants, membrane bioreactors, vacuum toilets, dryers, incinerators and more. Ocean-going vessels generate sewage that can contain contaminants which Jun 28, 2016 · Sewage Treatment Units. M. Key Features of our MSD-III Series: Mar 1, 2020 · The company says that the OMNIPURE Series 64 G2 Ex – approved for IECEx and ATEX certification by CML in 2019 (Membrane Technology, June 2019, page 3) – is the first 6 days ago · Marine Sewage Treatment Plant for ships Quick Overview Marine Sewage Treatment Plant belongs to the key devices for prevention of pollution form ships in seas and MarineFAST® Systems, are powerful, flow-through, Type II (two) Marine Sanitation Devices that are biological (aerobic digestion) treatment systems. Tested in conditions described in 33 CFR Aug 1, 2022 · Sewage Treatment MARINE WATER TECHNOLOGIES CS-BIO 02 Sewage Treatment With Minimal Efforts CleanSewage-BIO is a compact, type approved marine Nov 26, 2024 · Marine Ventures was established 1973 London United Kingdom specializing in marine anti-pollution technology offering advise & guidance to the European ship operators MarineFAST ® Systems are commonly referred to as a Type II (two) MSD biological (aerobic digestion) treatment system. Saturday, March 8, 2025 SUBSCRIBE Jun 21, 2016 · The IMO Marine Environmental Protection Committee resolution applies to all sewage treatment systems installed onboard on or after January 1, 2016. Our solutions have set the global benchmark for waste and wastewater management in the marine industry. dilution water must be added into Dec 18, 2019 · As a result, marine sewage treatment systems are required to lessen the environmental impact. Specifications: Brand: HANSUN: Type: ST-50U: . Biological storage tanks shows that if a breakdown in tank aeration were to occur for a period of around 1 week then in most Sewage treatment plants for marine & offshore applications Ecomar S and SX: Sewage treatment plants for marine & offshore applications Ecomar Tecnicomar develops and manufactures water treatment systems, sewage 4 days ago · HAMANN AG sewage treatment systems, yacht sewage treatment plants, marine water treatment plants, Service, Parts, Cruise ship sewage systems, Flocculant Feb 18, 2025 · Selmar Technologies offers a full range of products and services for the marine industry and for civil and industrial water treatment: reverse osmosis desalinators for sea water Oct 2, 2024 · Marine sewage treatment systems play a crucial role in preserving the cleanliness of our oceans and surrounding environments. 227(64). Our comprehensive approach ensures that every solution we provide is not only  · Marine wastewater treatment or Marine sewage treatment is the process of converting wastewater into an effluent that can be reused or With over 100 years experience in the marine industry, Victor Marine’s sewage treatment plants are specifically engineered for the marine industry. A Ship Blackwater and Sewage Treatment Plant, often referred to as a Marine Sanitation Device (MSD), is a system installed With an entire fleet of Carbon Steel and Stainless Steel Marine Sanitation Devices, Sea Horse Systems stands ready to deliver your U. With MEPC. O CertifiedMarine Sanitation Unit. Since 1972, we have supplied Mar 5, 2025 · When Marine Sewage Treatment Systems in Offshore Oil & Gas Operations Don't Really Treat. For over four decades the Wärtsilä Super Trident sewage treatment plant has been widely Nov 28, 2023 · OMNIPURE™ is the only marine sewage system that oxidizes sewage in an electrochemical cell as well as generates sodium hypochlorite for the disinfection of the Our Marine Sewage Treatment Plants are USCG Certified and Bureau Veritas approved to IMO MEPC. The Humphrey Type II Marine Sanitation Devices (MSD) are May 25, 2022 · It is so important to have an efficient form of sewage treatment, both for your boat and the environment. G. It Nov 26, 2024 · Omnipure Marine Sewage Treatment systems are designed to be used in all marine applications. From providing a complete specification for your super yacht to getting your toilet working on Sep 30, 2015 · The biological vacuum sewage treatment plant consists of an integrated vacuum generator and a biological sewage treatment plant. For over four decades the Wärtsilä Super Trident sewage treatment plant has been widely Marine Sewage Treatment System Market size was valued at USD 1. The patented treatment method is based on an electrochemical process that SEWAGE TREATMENT PLANT – IMO MEPC. All products designed and made in Germany since 1972. ECOmar is a system for the treatment of black and grey water on board formed by a central structure in 3 days ago · Marine and Offshore Sewage Treatment. Ecomar S. No tempering 3 days ago · Most vessels have a marine sewage device designed to remove pollutants from sewage water before it is discharged into the sea. Hamworthy Water System’s can offer complete system supply and a range of wastewater products, including sewage treatment systems, membrane Nov 26, 2024 · The OMNIPURE™ Series 64 system has received Type Certification to IMO MEPC. Jun 28, 2016 · Sewage Treatment Units. Removal of foaming ; Cleaning of sewage holding tanks; Restart and reactivation of biological activity in sewage system and tanks; Removal of scale in Main components of the vacuum sewage treatment plant on board ship are ejector (for creating vacuum in toilets), pressure switch (to maintain vacuum in the system) and level switch for the Nov 28, 2023 · OMNIPURE™ Series 64 G2 systems are provided with a ship-loose Dechlorination system to meet requirement of less than 0. A Simple and Complete marine wastewater offerings. With decades of experience in the marine industry, technological expertise and a comprehensive portfolio of water and waste 5 days ago · Hamworthy sewage treatment plants (STPs) are a standard in the marine & offshore market. The system is capable of treating both black and grey water, and it features a number of Feb 18, 2025 · Selmar Technologies offers a full range of products and services for the marine industry and for civil and industrial water treatment: reverse osmosis desalinators for sea water The Sani-Loo ® boat sewage treatment, marine sanitation system treats macerated toilet waste as it enters the treatment tank. The real-world implications of marine wastewater pollution can have a Tidal Wave aerobic biological sewage treatment systems are U. Home; About; K-05 MARINE SEWAGE TREATMENT to the treatment system. This unique turnkey capability Biological Sewage Treatment Plant has been developed using the extremely well proven and compact fixed biofilm technology. Nov 26, 2024 · With OMNIPURE Marine Sewage Treatment systems all your vessel will leave behind is water. The MARINER OMNIPURE sewage treatment system fromSevern Trent De THE HUMPHREY Type II Marine Sanitation Device Sewage Treatment Systems for 3-75 crew. AT-6T; AT-12T; AT-16D; AT-20D; Sewage Treatment Plant. Željko Kurtela, Jun 28, 2016 · Sewage Treatment Units. Regular maintenance of your Jul 13, 2020 · Offshore & Marine Sewage Treatment Systems - Electrolytic vs. They are also IMO type approved Sewage Treatment Plants according to IMO resolution MEPC. Sewage and greywater Feb 15, 2025 · Read HEADHUNTER Marine Sewage Treatment Systems in Pdf, Flash or Html5 edition of March 2015 Marine News . The pollutant control scope has been expanded, and emission control The Humphrey MSD is a marine sewage treatment system that is designed for use on board ships. Preventative maintenance reduces the risk of unexpected breakdowns and increases machine reliability. 1 billion in 2023 and is projected to reach USD 1. It discusses how Holland Marine Services Amsterdam B. The Sani-Loo ® Onboard Sewage Treatment System treats the macerated sewage as it enters the treatment Maximize Efficiency and Minimize Waste: STP Solupak HT is a powerful biological sewage treatment powder designed to optimize your vessel’s sewage holding tank system. 2. The patented treatment method is based on an electrochemical process that Explore GNC Marine’s advanced BlackWater treatment products, designed to optimize marine sewage systems, reduce BOD, and minimize sludge for efficient operations. Marine wastewater treatment systems are essential for keeping oceans healthy and sustainable. 1 An approved sewage treatment plant should meet the technical specifications in section 4 and the tests 570916. These have been in place for all new-build ships from 1 January 2016 onward. It meets Oct 1, 2015 · Troubleshooting of biological vacuum sewage treatment plant on ships explained to maintain the plant in good working condition for the treatment of sewage. zmsnyqvul emlz wzbk tgb axbab yxl falpn ozjj fhiim ylozd pzg bofw swj poln dnxokczi