Knowledge Center
Plant-ready guides: PAC jar-test dosing, caustic flakes vs lye cost, COA inspection & ETP checklists. Written for procurement & ETP engineers — Drashti Chemicals, Vadodara.
What is Poly Aluminium Chloride (PAC) and How is it Used in Water Treatment?
Poly Aluminium Chloride (PAC) is a high-performance coagulant used in municipal, industrial and ETP applications to remove suspended solids, colour and turbidity from raw water.
10 min read · 2026-09-03
Ferric Alum vs Non-Ferric Alum: Which Coagulant is Right for Your ETP?
Ferric alum and non-ferric alum differ in iron content, colour impact and cost — choosing the right grade prevents product contamination and optimises coagulation performance.
9 min read · 2026-09-03
Top 10 Chemicals Used in ETP Plants in India
Effluent treatment plants across India rely on a core set of coagulants, flocculants, pH adjusters and disinfectants to meet CPCB and state pollution board discharge norms.
11 min read · 2026-09-03
Sodium Metabisulfite: Uses, Properties and Industrial Applications
Sodium metabisulfite (Na2S2O5) is a versatile reducing agent and preservative used in water dechlorination, textile bleaching, food processing and chemical synthesis.
8 min read · 2026-02-26
Water Treatment Chemicals for the Textile Industry in Gujarat
Textile mills and dye houses in Gujarat consume coagulants, flocculants, pH adjusters and colour removal chemicals to treat high-COD, high-colour effluent before discharge.
10 min read · 2026-09-03
RO Antiscalant Selection Guide for Industrial Reverse Osmosis Plants
Selecting the right RO antiscalant prevents membrane scaling from calcium, silica and iron, extending membrane life and maintaining permeate quality in industrial RO systems.
9 min read · 2026-03-24
Cooling Tower Water Treatment Chemicals: A Complete Guide
Effective cooling tower treatment requires scale inhibitors, corrosion inhibitors, biocides and dispersants to control Legionella, scale and metal loss in recirculating systems.
11 min read · 2026-04-07
How to Choose the Right Coagulant for Your Water Treatment Plant
Coagulant selection depends on raw water chemistry, target contaminants, sludge handling capacity and cost — jar testing is the essential first step for any plant upgrade.
10 min read · 2026-04-21
PAC Powder vs Liquid: Which Form is Best for Your ETP?
PAC is available as powder (28–30% Al2O3) and liquid (10–18% Al2O3) — the right choice depends on dosing infrastructure, storage space and daily consumption volume.
9 min read · 2026-05-05
Calcium Hypochlorite vs Sodium Hypochlorite for Water Disinfection
Calcium hypochlorite (HTH) and sodium hypochlorite (liquid bleach) are both chlorine-based disinfectants — selection depends on storage stability, dosing convenience and application scale.
10 min read · 2026-05-19
What is Polyelectrolyte and How is it Used in Water Treatment?
Polyelectrolytes (flocculants) are water-soluble polymers that bridge coagulated particles into large, fast-settling flocs — essential for ETP clarification and sludge dewatering.
9 min read · 2026-06-02
Ferric Chloride Uses in Water Treatment and PCB Compliance
Ferric chloride is a versatile coagulant and etchant used for colour removal, phosphorus reduction and heavy metal precipitation in industrial effluent treatment across India.
10 min read · 2026-06-16
Industrial Chemical Exporter from Gujarat: A Buyer's Guide
Gujarat accounts for over 50% of India's chemical exports — understanding documentation, packaging standards and port logistics is essential for international buyers.
11 min read · 2026-07-01
Buying Bulk Chemicals from India: An Importer's Complete Guide
Importing bulk industrial chemicals from India offers cost advantages and product diversity — but success requires understanding logistics, quality assurance and regulatory compliance.
12 min read · 2026-07-15
Top Chemicals Exported from Gujarat, India
Gujarat exports water treatment chemicals, inorganic salts, acids and specialty chemicals to over 100 countries — here are the highest-volume export categories and their applications.
10 min read · 2026-07-29
TCCA 90 Granules for Swimming Pool Water Treatment
Trichloroisocyanuric acid (TCCA 90) granules provide slow-release chlorine for swimming pool disinfection — understanding dosing and storage ensures safe, crystal-clear pool water.
8 min read · 2026-08-12
Soda Ash Light vs Dense: Applications and Selection Guide
Soda ash (sodium carbonate) is available in light and dense grades with different bulk densities and dissolution rates — choosing the right grade affects handling cost and process efficiency.
9 min read · 2026-09-01
Zero Liquid Discharge (ZLD) Chemicals for Industrial Effluent Treatment
ZLD systems combine pretreatment chemicals, RO antiscalants, evaporator antiscalants and crystallisation aids to eliminate liquid effluent discharge from industrial plants.
11 min read · 2026-09-15
Activated Carbon for Water Treatment: Selection and Application Guide
Activated carbon removes chlorine, taste, odour and organic contaminants from water through adsorption — selecting the right grade and mesh size is critical for filter performance.
10 min read · 2026-10-01
Caustic Soda Flakes: Industrial Uses, Handling and Safety
Caustic soda (sodium hydroxide) flakes are a fundamental industrial chemical used for pH adjustment, cleaning, pulping and chemical synthesis — safe handling is essential due to corrosive nature.
10 min read · 2026-10-15
How to Verify a Chemical Supplier in India: A Buyer's Checklist
Verifying chemical supplier credentials, quality systems and track record before placing bulk orders protects against off-spec material, delivery failures and compliance risks.
9 min read · 2026-11-01
Chemical Packaging Standards for Export from India
Export-grade chemical packaging must meet UN certification, destination-country labelling requirements and transport regulations to ensure safe international shipment.
10 min read · 2026-11-15
Water Treatment Chemicals for the Pharmaceutical Industry
Pharmaceutical manufacturing requires pharma-grade and USP-compliant water treatment chemicals for WFI, purified water systems and effluent treatment meeting stringent regulatory standards.
11 min read · 2026-12-01
Boiler Water Treatment Chemicals: A Complete Guide
Boiler water treatment chemicals prevent scale, corrosion and carryover in steam generation systems — proper programme selection extends boiler life and ensures steam quality.
12 min read · 2026-12-15
How to RFQ PAC vs Alum for an Indian ETP
Procurement checklist for switching or dual-sourcing PAC and alum — RFQ fields, total cost per m³, storage, documentation and trial lots. Not a chemistry comparison.
8 min read · 2026-09-03
How to Choose an Industrial Chemical Supplier in Gujarat
A procurement checklist for Gujarat manufacturers — documentation, batch consistency, logistics and technical support beyond catalogue price.
8 min read · 2026-03-02
PAC vs Ferric Chloride for ETP: Phosphate, Colour, Sludge and Chloride
When ferric chloride beats PAC for phosphorus, dye colour, sulfide and PCB streams — and when PAC is the better daily coagulant. Distinct from PAC vs alum.
11 min read · 2026-09-03
ETP Chemical Procurement Checklist for Indian Plants
Stock the right coagulants, flocculants, pH chemicals and biocides — with documentation and dosing discipline.
10 min read · 2026-03-04
Anionic vs Cationic Polyelectrolyte: Buyer Guide
Match flocculant charge type to your sludge, effluent ionic character and dewatering equipment.
8 min read · 2026-03-05
PAC Dosing Problems on a Running Plant (Not the Jar-Test Protocol)
How to read overdosing, underdosing and seasonal PAC drift on a live clarifier — after you already have a jar-test number.
9 min read · 2026-09-03
Boiler Water Chemistry: Essential Principles
Understanding oxygen scavenging, pH control and scale prevention in boiler systems.
10 min read · 2025-09-08
Case Study Framework: Optimising Textile ETP Chemical Programs in Gujarat
Anonymized methodology example for Gujarat dye-house ETPs — jar testing, coagulant trials and dose discipline. Outcomes depend on plant data; not a guaranteed result.
9 min read · 2025-08-14
Industrial Chemical Handling & Safety Guidelines
Best practices for safe storage, handling and disposal of industrial chemicals.
7 min read · 2025-07-20
Designing Effective Cooling Tower Biocide Programs
Alternating oxidizing and non-oxidizing biocides for microbiological control.
6 min read · 2025-06-12
Frequently Asked Questions: Bulk Chemical Supply
Common questions about bulk chemical ordering, delivery and documentation.
4 min read · 2025-05-01
Technical Data Sheets & MSDS Download Center
Access technical data sheets, MSDS and product specification documents.
2 min read · 2025-04-10
Jar-Test Calculation Guide: Optimizing PAC 30% & Polyelectrolyte Dosing in Textile ETPs
Step-by-step jar-test protocol and dose calculation for PAC powder and polyelectrolyte in textile and chemical ETPs.
12 min read · 2026-03-10
Caustic Soda Flakes vs. Caustic Soda Lye 47%: Total Cost of Handling & Storage for Wastewater Treatment
Compare caustic soda flakes vs lye 47% on storage, handling labour, safety and true ETP cost of ownership.
10 min read · 2026-03-12
How to Inspect Batch COA for Industrial Acids: CAS, Purity, and Heavy Metal Compliance
How procurement and QA teams should read Certificate of Analysis for industrial acids — CAS, assay, heavy metals and batch identity.
9 min read · 2026-03-14
Consolidated ETP Chemical Supply in Savli & Makarpura: Same-Day Dispatch vs. Directory Ordering
Why Savli and Makarpura plant stores prefer consolidated ETP chemical supply from a Vadsar warehouse over IndiaMART multi-vendor ordering.
8 min read · 2026-03-16
PAC Powder vs Alum Water Treatment: Which Coagulant for ETPs?
Compare PAC powder and alum coagulants for municipal and industrial water treatment — dosing, sludge, ferric vs non-ferric alum grades, and when to switch from alum to PAC.
12 min read · 2026-09-03
Complete List of Chemicals Used in ETP Plants in India (2026 Guide)
Comprehensive 2026 guide to ETP plant chemicals in India — coagulants, flocculants, pH adjusters, disinfectants and specialty chemicals with dosage ranges, CPCB compliance notes and procurement tips.
14 min read · 2026-04-08
Textile Dyeing ETP Chemicals: Colour, COD and Process Stages
Process-stage guide for textile dyeing and finishing effluent — where PAC, ferric, PE and pH chemicals are dosed, and why colour fails when pH is wrong.
12 min read · 2026-09-03