ISO 9001:2015 & QCI Approved
STP and ETP Plant Manufacturer in Assam
Trity Environ Solutions is a trusted STP and ETP plant manufacturer in Assam, building wastewater systems for oil and gas, tea, pharma, and food units across the Brahmaputra and Barak valleys, and for the housing, hospitals, and hotels of Guwahati, Silchar, and Dibrugarh. In a state where sewage treatment has lagged and industrial discharge to rivers is being scrutinised, it designs plants that keep discharge measurably inside limits, with pan India installation support behind every project. Whether you need a sewage treatment plant manufacturer in Assam or an effluent treatment plant manufacturer in Assam, Trity Environ Solutions builds both in-house, from design to commissioning.
SPCB / CPCB Norm Compliant
Heavy Fabrication
Assam's Sewage Gap and River Scrutiny Both Point to On-Site Treatment
In January 2023 the National Green Tribunal recorded a gap of 435 MLD between liquid waste generation and treatment in Assam. It stopped short of imposing about Rs 1,000 crore as environmental compensation, noting the state's undertaking to credit Rs 1,043 crore to a separate non-lapsable account for solid and liquid waste. A Down To Earth report of June 2022 cited a Centre for Science and Environment study of September 2020 finding that around 97 per cent of Tinsukia's domestic wastewater is untreated, and a March 2021 CPCB inventory reported no sewage treatment plant in Assam. It also noted that in 2018 the CPCB had identified 44 polluted river stretches in the state, the second highest in the country. Those are older figures, so confirm the current position with the Pollution Control Board, Assam (PCBA) and the local authority.
Industrial discharge is under scrutiny too. In 2025 the Tribunal took suo motu cognisance of reports that a refinery was discharging petroleum based substances into the Dhansiri river, a Brahmaputra tributary, and registered a case that was still under consideration in January 2026. Those are allegations in a pending case, not findings. For a factory, hospital, or housing project, the lesson is the same: treated quality is checked at your own outlet. Trity Environ Solutions builds effluent treatment plants for oil and gas, tea, pharma, and food units, and sewage treatment plants for Assam's cities, designed against your real load and consent conditions.
Planning a project anywhere in Assam? Request a free site assessment and our engineering team will confirm the right configuration for your site.
Looking for only one side of the problem? Trity Environ Solutions has dedicated pages for a sewage treatment plant manufacturer in Assam covering city sewage, hospitals, and housing, and an effluent treatment plant manufacturer in Assam covering industrial effluent.
WHY THIS SYSTEM?
Key Benefits of STP and ETP Plant Manufacturer in Assam
Engineered for high biological efficiency, full environmental compliance, and low lifecycle operational costs.
Oil and Process Effluent Expertise
Treatment trains for oil bearing, high COD wastewater from oil and gas, refinery supply, and process units.
Built for Monsoon Swings
Equalisation and buffer capacity sized for the flow surges that heavy rain brings to drains and sites.
Treated Water for Reuse
Polished water for cooling, flushing, gardens, and process use, which cuts fresh water demand and tanker use.
Compact for Urban Projects
Modular MBBR and MBR layouts for housing, hospitals, and hotels in Guwahati and Silchar where land is limited.
Support Across the State
Installation, operator training, and AMC response across Assam's industrial and urban belts, backed by Trity's engineering team.
A Withheld Fine Is Not a Free Pass
The Tribunal held back compensation on the strength of the state's undertaking and asked for progress reports every six months, so the pressure continues. Projects that add load without treatment invite attention. A plant with sampling points and a dated log of treated water quality is the strongest position at inspection. Where a unit wants to cut fresh water use, a wastewater recycling system can be added after the main treatment train.
Plants Fail Through Operation, Not Drawings
When sewage plants are scarce, drains and rivers take whatever a site does not treat, and monsoon flows make every weakness visible. A plant that works on commissioning day but drifts afterwards counts for little. Trity Environ Solutions supports every Assam installation with operator training, performance checks, and an Annual Maintenance Contract, so dosing, aeration, and sludge handling stay within limits. Talk to our team about AMC coverage for your facility.
City Pages and Neighbouring States
Trity Environ Solutions has dedicated pages for the main markets in Assam: Guwahati, Dibrugarh, Tinsukia, Silchar, Jorhat, Tezpur, Sivasagar. For projects in neighbouring states, it also serves clients as an STP and ETP plant manufacturer in West Bengal and an STP and ETP plant manufacturer in Sikkim, so north eastern India projects can be handled by one team.
SYSTEM CONFIGURATIONS
Types of STP and ETP Plant Manufacturer in Assam Configurations
Tailored industrial configurations matched to specific effluent composition, flow rates, and space constraints.
Oil and Grease Removal
Our oil water separator separates free oil from process and cooling water before further treatment.
Process and Chemical ETP
Our chemical industry effluent treatment plant handles high COD, acidic, alkaline, and difficult process water.
Food and Tea Processing ETP
Our food and beverage effluent treatment plant handles the high organic load from processing and packaged food units.
High-Rise and Commercial STP
Our MBBR sewage treatment plant fits basement and podium layouts and holds treated quality across peak swings.
Hospitals, Hotels and Malls
Our MBR sewage treatment plant delivers high quality, low odour treated water in very little space, suited to reuse for cooling and flushing.
STEP-BY-STEP WORKFLOW
How the STP and ETP Plant Manufacturer in Assam Process Works
A sequential, multi-stage treatment methodology engineered for maximum contaminant removal and water recovery.
01
Site Assessment & Influent Characterisation
Flow measurement and sampling establish your actual load, whether oil bearing, process, food, or domestic sewage.
02
Design & Engineering
Technology and layout are fixed against PCBA consent conditions, available footprint, and reuse targets.
03
Manufacturing & Installation
Components are manufactured under ISO 9001:2015 quality controls, then installed and commissioned by Trity's site team.
04
Commissioning & AMC Support
The plant is tested against consent limits, operators are trained, and ongoing AMC support keeps performance consistent afterward.
FREQUENTLY ASKED QUESTIONS
Got Questions? We Have Answers
Q1. Which pollution control board governs STP and ETP discharge in Assam?
The Pollution Control Board, Assam (PCBA) issues consent to establish and consent to operate, alongside CPCB guidelines and National Green Tribunal directions.
Q2. Can you build an ETP for an oil or process unit in Assam?
Yes. Oil bearing and high COD wastewater needs oil separation and stronger treatment stages than a standard plant, so each system is designed from your own effluent analysis.
Q3. Is a sewage treatment plant available publicly in my Assam town?
Public capacity is limited in many places, and the Tribunal has recorded a large gap, so plan to treat on site and confirm the current position with the local authority.
Q4. Is an STP mandatory for housing projects and hospitals in Assam?
Large residential, commercial, and healthcare projects generally need an STP as part of building approval and PCBA consent conditions. Thresholds vary by project size and category, so confirm yours with the local authority.
Q5. How long does installation take in Assam?
Prefabricated modular plants typically commission within 45 to 90 days, while civil-based plants for larger capacities take 3 to 6 months from design approval to handover.
Q6. Can an existing Assam plant be upgraded or maintained?
Yes. We audit existing plants, retrofit capacity or technology, and take them under an annual maintenance contract.
Q7. How do I choose a reliable STP and ETP plant manufacturer in Assam?
Look for in-house manufacturing, experience with PCBA consent requirements, a design based on your own wastewater analysis, and a clear maintenance offering after commissioning. Trity Environ Solutions builds its plants under ISO 9001:2015 quality controls and supports every installation with operator training and an annual maintenance contract.
CATALOGUE
Related Engineering Products
RO & Water Recycling Plant Manufacturer in India
Trity Environ Solutions manufactures RO and water recycling systems for industries and commercial facilities, engineered for reliable purity and reuse.
Tertiary Treatment Plant Manufacturer in India
Trity Environ Solutions manufactures tertiary treatment plants that polish treated water beyond secondary treatment, enabling genuine reuse and stricter discharge compliance.
Wastewater Recycling System Manufacturer in India
Trity Environ Solutions manufactures wastewater recycling systems using UF and RO technology, turning treated wastewater into reuse-grade water for cooling, flushing, and gardening.
PAN-INDIA CAPABILITIES
Regional Solutions & State Coverage
TECHNICAL KNOWLEDGE
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