Sector Expertise
Industries We Serve
25+ years · 15+ industries · 200+ projects
Water and wastewater treatment requirements vary significantly across industries. SR Paryavaran Engineers brings deep sector-specific knowledge — from ZLD for textile clusters to ultrapure water for power plants and Johkasou systems for defence check posts.
Textiles & Apparel
Textile dyeing and processing generates high-COD, high-TDS, coloured effluent. CPCB mandates Zero Liquid Discharge for textile units in notified clusters. We deliver full ETP + ZLD systems — from activated sludge to DTRO evaporation.
Pharmaceuticals & Bulk Drugs
Pharmaceutical units require both process water purification (UPW/DM/EDI) and compliant effluent treatment. Our systems meet CPCB, State PCB, and international GMP standards for API and formulation plants.
Chemicals & Petrochemicals
Chemical and petrochemical plants generate complex, multi-stream effluents with high TDS, toxic organics, and heavy metals. We design segregated treatment trains, high-pressure RO, and thermal ZLD systems for this demanding sector.
Power — Thermal, Hydro & Renewable
Power plants require ultra-pure boiler feed water and compliant ash pond effluent treatment. RVUNL Chhabra (300 m³/hr TTP + ZLD) is one of our landmark power sector deliveries. We also serve renewable energy facilities with process water systems.
Steel & Metallurgy
Steel plants generate coke oven effluents, pickling liquors, rolling mill wastewater and blast furnace gases — each requiring specialised treatment. The SAIL Bokaro ZLD project (₹35.69 Cr) is our largest steel sector delivery.
Refineries & Oil & Gas
Refinery wastewater contains oil, phenol, sulphides, and heavy metals — requiring API separators, dissolved air flotation, biological treatment, and tertiary polishing. We have delivered for MRPL and CPCL among others.
Food, Beverage & Dairy
Food and beverage plants need both high-quality process water (RO/UF) and compliant effluent treatment for high-BOD, high-oil wastewater. Our systems meet FSSAI, HACCP, and PCB compliance simultaneously.
Defence & Paramilitary
Defence establishments and border infrastructure require reliable, self-contained water and sewage treatment in remote locations. Our Johkasou micro-STP for LPAI (7 Integrated Check Posts) is a flagship defence project.
Railways & Transport Infrastructure
Railway stations, workshops, and transit hubs generate domestic sewage, oily wastewater from washing facilities, and stormwater. We design compact, low-maintenance systems suited to infrastructure sites.
Municipal & Urban Local Bodies
Municipal STPs serve entire townships — requiring robust, energy-efficient biological treatment and treated water reuse for horticulture or industrial use. We design activated sludge, SBR, MBBR, and MBR-based municipal STPs.
Real Estate, Hospitality & Institutional
Residential townships, hotels, hospitals, and institutional campuses require integrated sewage treatment with treated water reuse for flushing and irrigation. We deliver compact, odour-controlled systems suited to occupied buildings.
Emerging — Green Hydrogen, BESS & Data Centres
Green hydrogen production requires ultra-pure water for electrolysers. Battery energy storage and data centres need cooling water treatment and process water systems. We are building expertise in these rapidly growing sectors.
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Our engineers analyse your specific effluent characteristics, compliance requirements, and site conditions to recommend the right treatment technology — regardless of industry.