Sewage Treatment Plant (STP Plant)
Distington Engineers manufactures and supplies sewage treatment plants (STP) for hospitals, hotels, schools, housing projects, commercial buildings and industries across India. Our plants use MBBR, SBR, MBR and other proven technologies, with capacities from 1 KLD-5 MLD. Every plant is designed for CPCB and SPCB norms and backed by O&M and AMC support.
What Is a Sewage Water Treatment Plant (STP)?
A Sewage Water Treatment Plant is a treatment system that is used to eliminate contaminants in wastewater and transform them into treated water that can be discharged or reused. It removes suspended solids, organic content, bacteria and chemicals and safeguards the water bodies and avoids polluting the environment. The current STP plants have been designed to comply with the regulatory requirements and help in conserving water by being utilized in gardening, flushing, and industrial utilization
From small scale pre fabricated designs for schools, hotels, hospitals to large scale municipal installations Distington Engineers does it all. Our largest installation is 3 MLD STP while the smallest being a 2.5 KLD STP for a Hotel premises.
Planning an STP for Your Project?
Tell us your capacity and application, and we will send a quotation.
Sewage Treatment Plant Technologies
The right biological process for an STP depends on the nature and quantity of sewage, the space available at the site, the quality of treated water required and the way the treated water will be used. Distington works with different treatment configurations to suit these project conditions.
Membrane Bioreactor
(MBR)
An MBR combines a biological treatment process with membrane separation. The membrane stage helps produce a cleaner treated-water stream and can make this configuration suitable for projects where treated water is intended for reuse or where space is limited.
Activated Sludge Process (ASP)
The Activated Sludge Process uses an aeration tank where microorganisms consume biodegradable organic matter in sewage. Air is supplied to support the biological activity, followed by separation of the biological solids from the treated water. ASP can be used for larger sewage treatment applications where a conventional biological process is appropriate.
Fixed Film Activated Sludge Reactor (FFAR)
FFAR uses microorganisms that grow on a fixed surface within the biological treatment system. This provides additional surface area for biological activity and can be useful when the treatment process needs to accommodate a particular organic load or site condition.
Sequencing Batch Reactor (SBR)
SBR treats sewage in timed cycles inside a single tank: fill, aeration (reaction), settling and decanting. Because settling takes place in the same tank, a separate clarifier is not required. SBR suits projects that want automated operation and flexible handling of changing flows.
Moving Bed Biofilm Reactor
(MBBR)
MBBR uses small plastic carriers that move freely inside an aerated tank. Microorganisms grow on the carriers as a biofilm and break down organic matter. MBBR is compact, handles varying loads well and typically does not need sludge recirculation, which makes it a common choice for residential, commercial and hospitality projects with limited space.
Upflow Anaerobic Sludge Blanket
(UASB)
In a UASB reactor, sewage passes upward through a blanket of anaerobic sludge. Microorganisms break down organic matter without the need for conventional aeration. UASB is generally considered where the wastewater characteristics and project conditions make anaerobic treatment practical.
Integrated Fixed-Film Activated Sludge (IFAS)
IFAS adds attached-growth media to a suspended-growth biological treatment process. The media provide additional surface area for microorganisms, allowing biological treatment to be carried out within a relatively compact reactor configuration.
Choosing an STP Technology
| STP Technology | Where It May Be Considered | Main Point to Evaluate |
| MBBR | Compact residential and commercial systems | Available space and biological load |
| SBR | Projects requiring controlled treatment cycles | Operating cycle and automation |
| MBR | Projects requiring higher-quality treated water | Reuse objective and membrane operation |
| ASP | Conventional biological treatment applications | Plant capacity and process design |
| UASB | Suitable anaerobic treatment applications | Sewage characteristics and organic load |
| IFAS | Projects requiring additional biological capacity | Reactor configuration and media requirement |
A proper selection starts with the wastewater flow, inlet characteristics and desired outlet quality. Site conditions, power availability, operating requirements, sludge handling and future expansion should also be considered before finalizing the treatment process.
Not sure which STP technology suits your site?
Share your daily flow, application and space. Our team will suggest the right option.
Why Choose Distington for Your Sewage Treatment Plant?
Distington Engineers is an STP plant manufacturer and supplier in India. We design, build and support sewage treatment plants for hospitals, hotels, schools, housing projects, commercial buildings and industries. Here is what you get when you work with us:
Built for compliance
Plants are designed to meet CPCB and SPCB discharge norms.
Technology matched to your site
MBBR, SBR, MBR and other options are chosen after we look at your flow, inlet water quality and end use.
Expandable designs
Start with today’s load and add capacity later without rebuilding.
Compact prefab options
A practical choice where land is limited.
Lower running cost
Designs aim to keep power, manpower and maintenance costs in check.
Material and automation choices
FRP, SS, MSRL, MSEP or civil construction, with semi-automatic or fully automatic operation.
Support after installation
O&M, AMC, breakdown support and spares, with one year of complimentary AMC.
Experience on live projects
We have worked with clients like Sayaji, CH Hospital, Force Motors and Indian Railway. See our projects below.
STP Plant Capacity and Applications
A sewage wastewater treatment plant is designed according to the quantity and characteristics of sewage generated at a particular site. The required STP plant capacity depends on factors such as occupancy, water consumption, operating hours and the nature of the facility. Distington Engineers & Consultants provides sewage treatment systems for residential, commercial, institutional and other suitable applications.
Distington has experience with STP installations ranging from a 2.5 KLD hotel project to installations up to 3 MLD, with the treatment configuration selected according to the individual project requirements.
Hospitals
Hospital projects require careful assessment of wastewater generated by different areas of the facility. The treatment system should be planned around the actual wastewater characteristics and applicable treatment requirements.
Schools and Institutions
Educational institutions — schools, colleges, universities and hostels — need compact or packaged STP configurations that fit within limited campus space while handling variable occupancy through the academic calendar. As a sewage treatment plant supplier for educational institutions, Distington designs systems suited to both day-scholar campuses and residential hostels.
Commercial Buildings
Office buildings, commercial complexes and other establishments can install STPs to treat sewage generated on site and reuse suitable treated water for non-potable applications where permitted.
Residential and Housing Projects
Apartment complexes, housing societies and residential developments generate sewage throughout the day. The STP needs to accommodate variations in flow while providing treated water suitable for the intended discharge or reuse application.
Hotels
Hotels generate wastewater from guest rooms, kitchens, laundry and common facilities. Flow patterns can vary with occupancy, making capacity assessment an important part of the design process.
Industrial Sewage Treatment Plant Solutions
Industrial facilities require sewage treatment for domestic-use wastewater generated from canteens, washrooms, administrative areas and staff housing — separate from the process effluent that industries send to an Effluent Treatment Plant (ETP). Distington Engineers designs industrial sewage treatment plants for manufacturing units, industrial parks and processing facilities across India, sized to occupancy, shift patterns and site space, and built for compliance with State Pollution Control Board norms for domestic-sewage discharge.
Benefits of a Distington Sewage Treatment Plant
Fit into tight urban sites and basements where space is limited.
Add treatment capacity later as your building or plant
grows.The design keeps power use, manpower and maintenance in check.
Use it for gardening, flushing, cooling or washing, as per your site and norms.
Designed to meet CPCB and SPCB discharge norms.
Choose from FRP, SS, MSRL, MSEP or civil construction to match your site.
Well-designed aeration and layout keep the plant unobtrusive.
Semi-automatic or fully automatic control to reduce manual work.
Our STP Process: From Site Study to AMC
Requirement and site study
We note your daily flow, source of sewage, available space and discharge needs.
Wastewater analysis
We check inlet water quality so the design is based on real data.
Technology selection and design
We choose between MBBR, SBR, MBR or another option, and prepare the layout.
Manufacturing
The plant is fabricated in your chosen material, FRP, SS, MSRL, MSEP or civil.
Installation and commissioning
We install the plant, test it and start it up on site.
Operator training
Your team learns how to run and monitor the plant.
O&M and AMC
We support you with operation, servicing, breakdown help and spares.
STP Plant Cost: What Affects the Price?
There is no single price for an STP, because every site is different. The cost depends on:
Daily capacity (KLD or MLD)
Technology chosen (MBBR, SBR, MBR and others)
Tank material (FRP, SS, MSRL, MSEP or civil)
Inlet water quality and treated water standard
Level of automation
Site conditions and civil work
O&M and AMC requirements
Delivery and installation location
For an accurate quotation, share your daily flow, application and available space with our team.
How Does a Sewage Water Treatment Plant Work?
A Sewage Treatment Plant generally combines multiple treatment stages to reduce solids, organic pollutants and microorganisms from wastewater.
The exact process flow varies according to wastewater characteristics, capacity and treated-water requirements.
Preliminary Treatment
Primary Treatment
Biological Treatment
Secondary Clarification
Tertiary Treatment and Disinfection
Importance of STPs
Preservation of rivers, lakes, and groundwater against pollution.
Prevention of water-borne diseases and health risks.
Facilitating water reuse and lowering the demand of freshwater.
Regulatory compliance of industries and housing projects.
Equipping sustainable urban development.
An effective Sewage Water Treatment Plant is not only an environmental protection but also an economical investment of a long-term kind.
STP Projects and Case Studies
Designed for residential, commercial, hospitality, institutional,
and municipal applications, our STPs combine biological, physical,
and chemical processes to deliver high-quality treated water.
Flow Range: 1 KLD to 5 MLD
Material Options: FRP, SS, MSRL, MSEP, Civil Construction
Operation: Semi-automatic / Fully Automatic
Key Benefits:
- Compact design & user-friendly operation
- Weather-proof, corrosion-resistant structures
- Low maintenance with high durability
- Fully automated control systems
- Complimentary AMC for the first year
Frequently Asked Questions About Sewage Treatment Plant
The two main types of sewage treatment are:
- Primary Treatment – This is the first stage, where large solid waste, grit, and floating materials are removed from sewage through screening and sedimentation.
- Secondary Treatment – This is the biological treatment stage, where microorganisms break down dissolved and suspended organic matter, making the water much cleaner before it is discharged or further treated.
Yes, treated sewage water can be safely reused for non-potable applications such as landscape irrigation, toilet flushing, cooling towers, industrial processes, and construction activities. When treated to the required quality standards, water reuse helps conserve freshwater resources, reduce operating costs, and support sustainable water management.
Yes, Distington Engineers designs and supplies sewage treatment plants for schools, colleges, universities and hostels, with compact packaged systems suited to campus space constraints and residential-hostel occupancy patterns.
Let's Connect for Your Sewage Treatment Plant
Need a Customized Sewage Treatment Plant for Your Industry?
Talk to our engineers for tailored STP solutions designed to meet your wastewater treatment requirements, regulatory standards, and production needs anywhere in India.