--- title: "Package Sewage Treatment Plants: MBR, MBBR, A2O" description: "Integrated and containerized sewage treatment plants using MBR, MBBR and A2O processes for communities, sites and industry. Send your flow for a quote." url: https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/ updated: 2026-11-10 --- # Sewage Treatment Plants Compact, factory-built biological treatment for domestic and municipal sewage. A package sewage treatment plant is a factory-built, pre-assembled system that treats domestic or municipal wastewater biologically so it can be safely discharged or reused. These plants are used by villages, resorts, construction camps, schools, hospitals, industrial parks and developers who need reliable treatment where a central sewer connection is unavailable or impractical. ## How it works Raw sewage first passes through screening and an equalization tank that buffers peak flows. It then enters biological reactors where microorganisms consume organic matter and nutrients. In an A2O configuration, anaerobic, anoxic and aerobic zones work in sequence to remove BOD, nitrogen and phosphorus. MBBR plants add free-floating plastic carriers that host a dense biofilm, increasing treatment capacity in a smaller tank. MBR plants replace the secondary clarifier with submerged membranes that physically separate solids, producing a high-quality effluent suitable for reuse. Treated water is then disinfected, and excess sludge is wasted to a holding tank for dewatering. ## Models - [Buried MBR Sewage Treatment Plant](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/buried-mbr-sewage-treatment-plant/): This eco-friendly buried sewage treatment equipment uses an MBR process to treat domestic sewage from towns and villages with low noise. Pretreatment by physical interception and grit removal protects the membranes, while high sludge concentration keeps the footprint compact. It is designed for local governments and developers seeking quiet, easy-to-operate decentralized treatment. - [Underground A2O Integrated Sewage Plant (WSZ)](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/a2o-integrated-sewage-treatment-plant/): This underground integrated wastewater treatment equipment uses the A2O (anaerobic-anoxic-oxic) process to remove organic matter, nitrogen and phosphorus. PLC automatic control provides 24-hour running, and sand plus carbon filter pretreatment options are listed. It suits residential, commercial and municipal projects that need buried biological nutrient removal in a compact footprint. - [MBBR Wastewater Treatment Plant](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/mbbr-wastewater-treatment-plant/): This automatic integrated wastewater treatment plant uses a moving bed biofilm reactor (MBBR) to treat sewage from food and beverage factories. Carriers suspended in the reactor grow biofilm that degrades organic load, and PLC control keeps the process running continuously. It is built in stainless or carbon steel for food processors needing compact biological treatment. - [Containerized Mobile Sewage Treatment System](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/containerized-mobile-sewage-treatment-plant/): This mobile integrated sewage treatment system provides temporary wastewater treatment for emergency facilities and construction sites. Rated at around 3,000 L/hour with PLC control and low energy consumption, it can be deployed where permanent sewers are not available. It suits contractors, relief operators and institutions such as hospitals, schools and hotels that need fast, relocatable treatment. - [FRP Anti-Corrosion MBR Sewage Unit](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/frp-mbr-sewage-treatment-unit/): This FRP anti-corrosion integrated sewage treatment unit uses the MBR process to remove organic matter and nitrogen from domestic sewage at scenic areas. Its small footprint, low energy consumption and high shock load resistance suit sites with variable visitor numbers. It is offered in MBR-8, MBR-10 and MBR-16 models for parks, resorts and tourist destinations. - [Hospital Wastewater Treatment Plant with Disinfection](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/hospital-wastewater-treatment-plant/): This integrated sewage treatment plant includes a disinfection system to treat hospital wastewater before discharge. Pump, motor and PLC components provide automatic operation with low energy consumption, and the unit can be installed underground. It is designed for hospitals, clinics, schools and government facilities that must treat and disinfect wastewater on site. - [Integrated Reclaimed Water (Reuse) System](https://www.waste-water-equipment-factory.com/products/sewage-treatment-plants/reclaimed-water-reuse-system/): This integrated reclaimed water treatment system recycles treated wastewater into usable industrial water through RO membrane filtration. PLC control allows 24-hour automatic running, helping plants cut fresh water intake and energy use. It is aimed at factories and industrial parks that want to reuse wastewater for process, cooling or cleaning water instead of discharging it. ## How to choose - **Design flow and peak factor:** Size the plant on average daily flow and the expected peak, since small communities often see large daily fluctuations. An equalization tank helps smooth these variations. - **Influent quality:** Know the expected BOD, COD, suspended solids, ammonia and phosphorus levels. Industrial contributions, grease or high-strength streams may require pretreatment. - **Discharge or reuse standard:** The required effluent limits largely determine the process choice. MBR suits strict limits and reuse, while MBBR and A2O are robust options for conventional discharge. - **Site and installation constraints:** Consider available footprint, whether the plant will be above or below ground, and transport limits. Containerized units simplify shipping and allow faster installation. - **Operation and maintenance capacity:** Match the level of automation and maintenance tasks, such as membrane cleaning or blower servicing, to the skills available on site. ## Applications - Rural villages and small towns - Hotels, resorts and residential developments - Construction and mining camps - Schools, hospitals and public buildings - Industrial parks and factory domestic sewage - Highway service areas and remote facilities - Treated water reuse for irrigation and flushing ## FAQ ### What is the difference between MBR and MBBR? MBR uses submerged membranes to separate treated water from biomass, producing very low suspended solids. MBBR uses moving plastic carriers that grow biofilm and still relies on a clarifier or filter for solids separation. ### Can a package plant meet water reuse requirements? Yes, when the process is selected for reuse. MBR followed by disinfection is commonly used where treated water will be reused for irrigation, toilet flushing or cooling. ### Can the plant be installed underground? Many integrated plants can be buried or partially buried to save space and reduce noise and odor. Access for maintenance and protection against buoyancy must be considered in the design. ### What information is needed for a quotation? Provide the daily flow rate, influent characteristics, required effluent standard and site conditions. If influent data is not available, the number of people served is a useful starting point. ## Contact - Email: inquiry@waste-water-equipment-factory.com - WhatsApp / Tel: +86 176 2154 1688 - Quotation form: https://www.waste-water-equipment-factory.com/contact/ - Company: Shanghai Mars Industrial Co., Ltd., Shanghai, China