CTE and CTO for ETP and STP: Process, Documents, Fees and Common Rejection Reasons
How to get Consent to Establish and Consent to Operate for your ETP or STP: steps, documents, fees, validity, renewal timing and common reasons for rejection.
ISO 9001:2015 & QCI Approved
STP & ETP Blog: Technical Guides on Wastewater Treatment
Our blog covers practical engineering topics for anyone planning or operating a Sewage Treatment Plant or Effluent Treatment Plant in India. You will find capacity calculation guides, technology comparisons like MBBR versus SBR versus MBR, industry specific treatment guides for pharma, textile and dairy effluent, and state wise pollution control board compliance requirements. These articles are written by our engineering team based on real project experience, not generic content, so you get information you can actually use when planning a plant or preparing for compliance.
Latest Technical Article
Nov 02, 2026
Greywater Recycling System for Hotels and Societies
Trity Enviro explains greywater recycling for hotels and societies: sources, treatment train, dual plumbing, reuse quality and a worked 200 flat example.
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KNOWLEDGE BASE
Latest Technical Articles
Bulk Waste Generator Compliance Under India's SWM Rules 2026: What Businesses Need to Set Up
A practical checklist for bulk waste generators under SWM Rules 2026: registration, four-stream segregation, on-site processing, EBWGR certificates and records.
How to Design a Water Recycling System for Cooling Towers and Industrial Process Water
Design a water recycling system for cooling towers and process water: water balance, cycles of concentration, treatment train and payback, with an example.
Tertiary Water Treatment for Industrial Reuse: When Filtration Alone Is Not Enough
Is filtration enough to reuse treated wastewater? Learn when you need UF, RO, softening or disinfection, and how to match tertiary treatment to each reuse.
Equalization Tank Design for STP and ETP: How to Handle Flow and Load Variations
Design an equalization tank for your STP or ETP: size volume from flow variation, plan mixing and aeration, pH control and layout, with a worked example.
Effluent, Sewage or Fresh Water? How to Identify the Right Treatment Plant Before You Request a Quote
Not sure if you need an ETP, STP or water treatment plant? Learn how to identify your water type, what data to share and how to compare quotes before ordering.
POPULAR KNOWLEDGE
Featured Technical Reads
Wastewater as a Resource: Paving the Way for a Sustainable Water Future
Wastewater recycling conserves freshwater, reduces pollution, and boosts sustainability. Explore technologies that transform wastewater into a valuable resource for industries.
Vertical Farming and Wastewater Reuse: A Hidden Partnership
Discover how vertical farming and wastewater reuse unite to boost food security, conserve water, and enable sustainable agriculture in urban areas.
How to Choose the Right Water Treatment System for Industries in India
Learn how to choose the right STP, ETP, or RO plant for your industry in India, covering CPCB/SPCB compliance, sizing, and cost. Get expert guidance.
PROVEN EXPERIENCE
Featured Turnkey Installations
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