11 min read · 2026-09-15
By Rajesh Chauhan, Proprietor, Drashti Chemicals
Supplying industrial chemicals from Vadodara since 2015 — ETP coagulants, RO programs, and process chemicals with batch COA/MSDS.
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Expert supply · Est. 2015
Mr Rajesh Chauhan
Founder-led industrial chemical supply from Vadodara — ETP coagulant selection, RO programs, textile and pharma utility chemicals. Batch COA/MSDS on every dispatch. GSTIN 24AGLPC6288M1ZX.
Zero Liquid Discharge (ZLD) Chemicals for Industrial Effluent Treatment — written for ZLD plant operators and environmental project managers. Drashti Chemicals supplies industrial chemicals from Vadodara, Gujarat with batch COA, MSDS and GST invoicing.
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Buy Water Treatment Chemicals — Bulk Quote Vadodara
Documented grades from our Vadodara warehouse — batch COA & MSDS, GST invoice. Share quantity on WhatsApp for a quote (we do not publish list prices).
This guide covers practical points for plant operators and procurement teams evaluating chemical supply in India.
ZLD Process Overview and Chemical Requirements
ZLD combines pretreatment (coagulation, filtration), RO concentration, evaporator/crystalliser and solid waste disposal to achieve zero liquid discharge.
Pretreatment chemicals (PAC, polyelectrolyte, pH adjusters) protect downstream RO membranes and evaporators from fouling.
RO antiscalants enable high recovery (75–85%) before brine enters the evaporator stage.
Evaporator antiscalants and dispersants prevent scale formation on heat transfer surfaces in MEE (multi-effect evaporator) systems.
Key Chemical Categories for ZLD Plants
Coagulants and flocculants for TSS, colour and organics removal in pretreatment clarifiers.
RO antiscalants (high-SiO2 formulations) for brine concentration stages with silica-rich feed water.
Evaporator antiscalants for calcium sulphate, calcium carbonate and silicate scale prevention in MEE.
pH adjusters (HCl, NaOH), membrane cleaners (acidic and alkaline) and defoamers for evaporator operation.
Optimising Chemical Costs in ZLD Operations
Pretreatment is the most chemical-intensive stage — optimise coagulant dose through jar testing to reduce RO membrane fouling.
Antiscalant overdose wastes chemical without improving performance; dose based on saturation indices from water analysis.
Consolidate chemical supply with a single supplier offering the full ZLD chemical programme for simplified procurement and technical support.
Regular RO membrane cleaning and evaporator descaling extends equipment life and reduces overall chemical consumption per kilolitre treated.
Supply from Drashti Chemicals, Vadodara
Drashti Chemicals stocks related industrial chemicals from Vadsar with batch COA, MSDS and GST invoicing (24AGLPC6288M1ZX). We are a supplier/stockist — share grade and quantity for a documented bulk quote. No public list prices.
Need Water Treatment Chemicals?
Get a bulk quote from Drashti Chemicals — Vadodara
Our team helps with product selection, grade matching, dosing guidance and pan-India delivery. Export orders (UAE, Bangladesh, Egypt, Africa) handled with full documentation.
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