SOLUTIONS / WATER TREATMENT CHEMICALS
Water treatment chemicals
dosed on evidence, not guesswork.
Ram Chemical Enterprises, the chemicals arm of Rispri Labs, makes and supplies boiler, cooling tower, RO membrane, effluent and descaling chemicals. We analyse your water and run jar tests in our NABL-accredited laboratory first, then recommend the product and the dose, and check the results every month.
In short
What water treatment chemicals do.
Water treatment chemicals are formulations added in small, measured doses to water systems to stop four kinds of damage: scale (hard minerals baking onto hot surfaces), corrosion (metal dissolving, often driven by oxygen or acid), fouling (silt, slime and bacteria building up) and, in effluent plants, poor settling of solids. Boilers use oxygen scavengers, scale inhibitors and condensate amines; cooling towers use scale and corrosion inhibitors with biocides; RO plants use antiscalants, dechlorinators and cleaners; ETPs use coagulants such as PAC and polyelectrolyte flocculants. The right product and dose are found by water analysis and jar tests, then checked against residuals, cycles of concentration and outlet quality.
- 5%
- Extra boiler fuel for every 1 mm of scale on the tubes
- 60%
- Less cooling tower blowdown when cycles of concentration rise from 3 to 6
- 17
- Specialty formulations across RO, boiler, cooling, ETP and descaling
- NABL
- Accredited laboratory for water analysis, jar tests and monthly checks
The basics
Why untreated water costs more than chemicals.
Raw water is never just water. Borewell water in much of India carries hundreds of mg/L of calcium and magnesium hardness, plus silica, iron, chloride and dissolved oxygen. Surface water brings silt, organic matter and bacteria. Each of these behaves badly once the water is heated, concentrated or pushed through a membrane.
Scale is a hard layer of calcium carbonate, calcium sulphate or silica. It forms when water is heated or concentrated past the point where those minerals stay dissolved. Scale is a poor conductor of heat, so a boiler or heat exchanger needs more fuel to deliver the same output, and tubes can overheat and fail.
Corrosion is metal turning back into oxide. In boilers the main culprits are dissolved oxygen (which causes pitting) and carbon dioxide (which forms carbonic acid in condensate lines). In cooling towers, water that is too soft or too acidic attacks carbon steel and copper.
Fouling covers everything that clogs: silt, iron, algae and the slimy biofilm bacteria build on wet surfaces. Biofilm also shelters corrosion-causing bacteria and, in cooling towers, Legionella.
In an effluent treatment plant the problem is different: fine particles carry electric charges that keep them apart, so they never settle. Coagulants and flocculants neutralise those charges and bind particles into heavy flocs.
Chemicals are a programme, not a product
A drum of antiscalant does nothing useful if it is dosed at the wrong rate, into the wrong point, or into a system whose cycles of concentration nobody measures. A treatment programme combines the product, a dosing pump, simple control tests and a regular lab check. That is how we supply chemicals.
What goes wrong
What happens without treatment, and what each chemical does.
Every system fails in its own way. This table links the symptom you see on site to the chemistry behind it and the type of chemical that prevents it.
| System | What goes wrong untreated | What you notice | What the chemical does |
|---|---|---|---|
| Boiler feed and drum | Hardness bakes onto tubes; dissolved oxygen pits the economiser and drum | Rising stack temperature and fuel use, tube leaks, frequent descaling | Scavenger removes oxygen; sludge conditioner keeps hardness as loose sludge that leaves with blowdown |
| Steam and condensate | CO₂ from bicarbonate in feed water forms carbonic acid in condensate | Thinned, grooved return lines; red or black condensate | Volatile neutralising amine travels with steam and lifts condensate pH |
| Cooling tower | Evaporation concentrates minerals until they precipitate; warm, aerated water grows algae and biofilm | White scale on fills and condenser tubes, green basins, high approach temperature, rising chiller power | Inhibitor holds minerals in solution and films metal; biocide kills microbes; dispersant lifts slime and silt |
| RO membranes | Reject side concentrates salts past saturation; chlorine oxidises polyamide membranes | Falling permeate flow, rising pressure difference, rising permeate TDS | Antiscalant delays crystal growth; SMBS removes chlorine; CIP cleaners dissolve scale and organic foulants |
| ETP clarifier | Charged colloids stay suspended; sludge holds water | Turbid outlet, high TSS and COD, wet sludge cake | Coagulant neutralises charge; flocculant bridges particles into large flocs; cationic polymer releases water from sludge |
| Heat exchangers and old boilers | Scale already built up and cannot be removed by inhibitors | Poor heat transfer even after treatment starts | Inhibited acid dissolves scale; passivation protects bare steel afterwards |
Send us a sample, or ask for an on-site trial. Our NABL-accredited laboratory analyses hardness, alkalinity, silica, chloride, iron, TDS, COD and TSS, and we jar test candidate products so the dose is based on your water.
Product range
Our specialty chemical formulations, by application.
Seventeen formulations, each with a product code, active chemistry, dose guidance and packing. pH is for a 1% solution. Doses are starting ranges; your programme dose is set by testing.
Boiler water treatment chemicals
| Code and product | Active chemistry | Controls | Dose guidance | Form, pH (1%) | Packing |
|---|---|---|---|---|---|
| WC-1020 DEHA Boiler Oxygen Scavenger | DEHA (diethylhydroxylamine) with hydroquinone catalyst; hydrazine-free, volatile | Dissolved oxygen pitting in economisers, steam drums and condensate lines | 1.5 ppm per 0.1 ppm dissolved O₂ | Clear colourless liquid, pH 9.0 to 10.5 | 20 L carboy, 50 L drum |
| WC-1022 Boiler Sludge Conditioner and Scale Inhibitor | Synthetic polyacrylate dispersant and organophosphonate | Baked-on calcium phosphate scale and sludge; keeps tubes clean up to 40 bar operating pressure | 10 to 30 ppm on feed water | Amber liquid, pH 7.0 to 8.5 | 20 L carboy, 50 L drum |
| WC-1025 Condensate Line Neutralizing Amine | Volatile amine blend: morpholine and cyclohexylamine | Carbonic acid corrosion in steam and condensate return lines; holds condensate pH 8.2 to 9.0 | 5 to 15 ppm on steam | Clear liquid, pH 10.0 to 11.5 | 20 L carboy, 50 L drum |
Cooling tower chemicals
| Code and product | Active chemistry | Controls | Dose guidance | Form, pH (1%) | Packing |
|---|---|---|---|---|---|
| WC-1055 Cooling Anti-Scalant and Corrosion Inhibitor | Multimetal zinc-organophosphonate with copper azole | Scale and corrosion of carbon steel and copper in open recirculating towers, HVAC chillers and condensers; supports up to 6.0 cycles of concentration | 15 to 35 ppm in recirculating water | Light yellow liquid, pH 2.5 to 3.5 | 20 L carboy, 50 L drum |
| WC-1030 Non-Oxidizing Broad Spectrum Biocide | Isothiazolinone (CMIT/MIT 1.5%) with quaternary ammonium compound | Penetrates biofilm; controls algae, fungi, sulphate-reducing bacteria (SRB) and Legionella pneumophila | 50 to 100 ppm shock dose, weekly | Pale green liquid, pH 3.0 to 5.0 | 20 L carboy, 50 L drum |
| WC-1033 Cooling Tower Bio-Dispersant | Non-ionic surface-active dispersant | Loosens and detaches thick slime, mud and silt from basins and tube bundles | 10 to 20 ppm slug dose | Viscous liquid, pH 6.0 to 7.5 | 20 L carboy, 50 L drum |
RO antiscalants, dechlorinator and membrane cleaners
| Code and product | Active chemistry | Controls | Dose guidance | Form, pH (1%) | Packing |
|---|---|---|---|---|---|
| WC-1091 RO Antiscalant, High Recovery Grade | Polycarboxylic and organophosphonate; NSF-60 certified | Silica (SiO₂), CaSO₄, BaSO₄ and CaCO₃ scale up to LSI +2.8 | 2.0 to 5.0 ppm continuous feed | Clear amber liquid, pH 1.8 to 2.5 | 20 L carboy, 50 L and 220 L HDPE drum |
| WC-1094 High pH RO Membrane Antiscalant | Phosphonocarboxylate polymer | High silica and hardness in high-pH (above pH 9.0) trains and ZLD RO; reactive silica up to 220 ppm | 3.0 to 8.0 ppm on feed | Clear yellow liquid, pH 9.5 to 10.5 | 20 L carboy, 50 L drum |
| WC-1096 Sodium Bisulfite Dechlorinator (SMBS) | Food-grade sodium metabisulphite (Na₂S₂O₅ 98%) | Free chlorine and oxidants that damage polyamide RO membranes | 3.0 ppm per 1.0 ppm free Cl₂ | White crystalline powder (also liquid), pH 4.0 to 5.0 | 25 kg bag, 20 L liquid |
| WC-1092-A Acidic RO Membrane CIP Cleaner | Inhibited organic acid with chelant | Inorganic scale: CaCO₃, metal oxides, iron and manganese deposits on RO, NF and UF membranes | 1 to 2% w/v CIP circulation; solution pH 2.0 to 2.5 | White powder or liquid, pH 2.0 to 2.5 | 25 kg pouch, 20 L carboy |
| WC-1092-B Alkaline RO Membrane CIP Cleaner | High-pH surfactant, EDTA chelant and bio-surfactant | Organic foulants, colloidal silt, clay, humic acids and biofilm; restores permeate flux | 1 to 2% w/v CIP circulation at pH 11.0 to 11.5, 35 to 40 °C | Off-white powder or liquid, pH 11.0 to 11.5 | 25 kg pouch, 20 L carboy |
ETP chemicals: coagulants, flocculants and polyelectrolyte
| Code and product | Active chemistry | Controls | Dose guidance | Form, pH (1%) | Packing |
|---|---|---|---|---|---|
| WC-1080 Poly Aluminium Chloride (PAC 30%) | Polyaluminium chloride, Al₂O₃ 30% powder or 10% liquid | Fast pin-floc formation; TSS, colloids, turbidity and part of the COD in industrial ETPs | 20 to 150 ppm on raw effluent | Fine yellow powder or liquid, pH 3.5 to 5.0 | 25 kg bag (powder), 50 L drum |
| WC-1082-A Anionic Polyelectrolyte Flocculant | High molecular weight anionic polyacrylamide (PAM), 18 to 22 million daltons | Bridges pin-flocs into large, dense flocs for fast settling in primary and secondary clarifiers | 0.5 to 2.0 ppm as solution | White granular powder, pH 6.5 to 7.5 | 25 kg bag, 50 L drum |
| WC-1082-C Cationic Polyelectrolyte Flocculant | Cationic polyacrylamide (PAM), medium to very high charge density | Biological and organic sludge dewatering on filter press, screw press and decanter centrifuge | 1.0 to 5.0 kg per tonne of dry solids | White powder, pH 6.0 to 7.0 | 25 kg bag (powder) |
| WC-1085 Effluent Decolorizing Polymer | Cationic dicyandiamide formaldehyde resin | Reactive and acid dye colour and COD in textile dye house, paper mill and printing wastewater | 30 to 100 ppm on raw effluent | Light yellow liquid, pH 3.0 to 5.0 | 50 L and 220 L drum |
Descaling and passivation
| Code and product | Active chemistry | Controls | Dose guidance | Form, pH (1%) | Packing |
|---|---|---|---|---|---|
| WC-1070 Inhibited Heavy Duty Acid Descaler | Inhibited sulphamic / hydrochloric acid with corrosion inhibitors | Thick calcium carbonate and iron oxide scale in boilers and heat exchangers, without attacking copper or steel | 5 to 10% circulation wash | Clear acidic liquid, pH 1.0 to 1.5 | 50 L and 220 L drum |
| WC-1072 Passivation and Neutralization Chemical | Alkaline phosphate and sodium nitrite passivator | Neutralises leftover acid after descaling and forms a protective magnetite film on steel | 1 to 2% passivation wash at 60 °C | White powder or liquid, pH 10.5 to 11.5 | 50 L and 220 L drum |
Bulk orders can also be packed in 1,000 L IBC totes. All packs are tamper-evident HDPE. Every batch ships with a technical data sheet (TDS), a GHS safety data sheet (SDS) and a batch certificate of analysis (CoA).
Other ranges from Ram Chemical Enterprises
Sugar processing chemicals
Juice clarification flocculants for mud settling, scale inhibitors for evaporators and vacuum pans, cooling water treatment for barometric condensers, and ETP chemicals. Seasonal dosing protocols for the crushing season.
Paper process chemicals
Retention and drainage aids, pitch and stickies control, felt and wire cleaners, and deposit and scale control for white water circuits in paper, board, tissue and recycled-fibre mills.
Swimming pool chemicals
Chlorine and non-chlorine disinfectants, pH adjusters (acid and soda ash), algaecides, clarifiers and scale and stain control for hotel, club and public pools, water parks and spas, with dosing guidance and testing support.
Which product do I need? A quick selection guide
| Your situation | Start with | Watch-outs |
|---|---|---|
| Small boiler on softened borewell water | WC-1022 plus WC-1020; WC-1025 if condensate is returned | Softener must actually deliver near-zero hardness; check it daily |
| Boiler on RO permeate | WC-1020 and WC-1025; lower WC-1022 dose | Low-alkalinity feed can corrode; keep boiler water pH in the maker's range |
| HVAC or process cooling tower | WC-1055 continuous, WC-1030 weekly, WC-1033 when slime is present | Alternate or combine with an oxidising biocide to avoid resistant growth |
| Brackish-water RO at normal pH | WC-1091 and WC-1096 if feed is chlorinated | Dose antiscalant after the cartridge filter, before the high-pressure pump |
| High-recovery or ZLD RO, high silica | WC-1094 | Run projections at your real silica, temperature and pH |
| RO flow dropped 10 to 15% | WC-1092-B first for organics, then WC-1092-A for scale | Alkaline before acid is the usual order; follow the membrane maker's limits |
| ETP with turbid outlet or high TSS | WC-1080 PAC with WC-1082-A anionic polymer | Jar test both; overdosing polymer makes floc float |
| Wet sludge cake | WC-1082-C cationic polymer | Match charge density to sludge type on a test press or centrifuge |
| Coloured textile or paper effluent | WC-1085, often with PAC | Colour removal depends on dye type; test on a composite sample |
| Old scale on boiler or exchanger | WC-1070 then WC-1072 | Needs a planned shutdown, venting and neutralised spent acid |
Dosing
How is the right chemical dose decided?
Every dose on this page is a starting range. The real dose comes from your water and your system. These are the four tools we use.
1. Jar tests for ETP chemicals
A jar test is a bench trial that copies a clarifier in six beakers. Each beaker gets a different coagulant dose, is mixed fast for about a minute, stirred slowly for 15 to 20 minutes while flocs grow, then left to settle. Adding polymer to the best beaker narrows the flocculant dose. We measure turbidity, TSS, colour and COD in the clear water. The lowest dose that meets your target is the one we recommend, because extra chemical only adds sludge and cost.
2. LSI and RSI for cooling water
The Langelier Saturation Index (LSI) compares the water's actual pH with the pH at which calcium carbonate would just start to precipitate (pHs): LSI = pH − pHs. Above zero, the water tends to form scale; below zero, it tends to dissolve scale and attack metal. The Ryznar Stability Index (RSI) = 2pHs − pH; values below about 6 point to scaling and above about 7 to corrosion. We calculate both at the tower's operating temperature and cycles to choose the inhibitor and its dose.
3. Cycles of concentration for cooling towers
As water evaporates, the minerals stay behind. Cycles of concentration (COC) = conductivity (or chloride) of tower water ÷ that of the make-up water. Blowdown, the water drained to keep minerals in check, equals evaporation ÷ (COC − 1). Higher cycles save water but push the water closer to scaling, which is exactly what the inhibitor must handle.
4. Blowdown and TDS control for boilers
Boiler water concentrates as steam leaves. When dissolved solids get too high, water foams and carries over into the steam. The fix is controlled blowdown: blowdown % = feed water TDS ÷ (maximum boiler water TDS − feed water TDS) × 100. A conductivity meter or automatic blowdown controller keeps the boiler near its limit without wasting hot water.
Two worked examples
| Example | Inputs | Working | Result |
|---|---|---|---|
| Cooling tower | Circulation 300 m³/h, temperature drop 5 °C | Evaporation ≈ 0.00153 × 300 × 5 = 2.3 m³/h (about 55 m³/day). Blowdown at COC 3 = 2.3 ÷ 2; at COC 6 = 2.3 ÷ 5 | Blowdown falls from about 28 to 11 m³/day, roughly 60% less, and make-up from about 83 to 66 m³/day |
| Smoke-tube boiler | Feed water TDS 150 mg/L, maximum boiler water TDS 3,000 mg/L | 150 ÷ (3,000 − 150) × 100 | Blowdown about 5.3% of feed. With RO permeate at 30 mg/L TDS it falls to about 1% |
The 0.00153 factor is a standard rule of thumb for evaporation (about 1% of circulation for every 6.5 °C of cooling); drift is ignored. The maximum boiler water TDS is set by your boiler maker and IBR inspector, not by us.
How we deliver a programme, from first sample to steady operation
- 1
Water analysis
Full chemical and microbiological analysis of make-up, system and effluent water in our lab.
- 2
Jar testing
Product and dose trials on your actual water, on site or in the lab.
- 3
Programme proposal
Products, doses, dosing equipment, control tests and monthly cost in one page.
- 4
Supply and set-up
Delivery, dosing pumps and tanks, and operator training.
- 5
Monitor and report
Monthly site checks, lab results, corrosion coupons and dose adjustments.
Standards
The rules and standards behind a chemical programme.
Chemicals are chosen to keep your water within the limits your auditor, boiler inspector or pollution control board checks.
| Standard or rule | What it covers | Where it matters |
|---|---|---|
| IS 10392 | BIS specification for feed water and boiler water for low and medium pressure boilers | Boiler feed hardness, pH, oxygen and boiler water limits |
| Indian Boiler Regulations (IBR) | Water quality and inspection duties for registered boilers | Inspections, descaling records and blowdown practice |
| IS 10500:2012 | Limits for drinking water | RO and treated water used for drinking or food contact |
| EP Rules 1986, Schedule VI and your consent | General discharge standards for treated effluent (for example BOD 30, COD 250, TSS 100 mg/L to inland surface water) | ETP coagulant and polymer programmes; blowdown that ends up in the ETP |
| MSIHC Rules, 1989 | Manufacture, Storage and Import of Hazardous Chemical Rules | Storage and handling of acids, biocides and other hazardous chemicals on site |
| GHS safety data sheets | Hazard, handling, first-aid and spill information | Supplied with every product |
| NABL accredited testing | Independent analysis to ISO/IEC 17025 | Water analysis, jar tests and monthly verification behind every programme |
How to buy
Buying chemicals: supply only, or a monitored programme?
The price per kilo is the least useful number when comparing chemical offers. What matters is the cost per tonne of steam, per TR-hour of cooling or per cubic metre treated, and what the programme saves in fuel, water and downtime.
| Option | What you get | Best for |
|---|---|---|
| Supply only | Products with TDS, SDS and CoA, plus dose guidance | Plants with their own chemist and test kit |
| Supply with jar test | Products selected and dosed after lab analysis and jar tests on your sample | ETPs and new RO or cooling systems |
| Monitored programme | Products, dosing pumps, monthly site visit, lab results, corrosion coupons, dose adjustment and a monthly report | Boilers, cooling towers and RO plants where failure is expensive |
| Programme with O&M | Chemicals inside a full operation and maintenance contract for your ETP, STP or RO | Plants without trained operators |
What drives chemical cost
- Raw water hardness, silica and alkalinity
- Cycles of concentration and RO recovery you want
- Effluent strength and variability
- Dosing accuracy: manual vs pump with flow pacing
- Pre-treatment that works, such as a softener ahead of a boiler
What a good programme saves
- Fuel lost to scale (about 5% per mm on boiler tubes)
- Make-up water and blowdown in cooling towers
- RO membrane cleanings and early replacement
- Sludge volume and disposal cost in the ETP
- Unplanned shutdowns and tube failures
Where money is wasted
- Dosing by habit, not by test
- Dosing by hand once a shift
- Antiscalant dosed before a chlorine contact point
- Too much polymer, so floc floats
- No one checking cycles or blowdown
We quote programme cost per month after analysing your water, because chemical consumption depends on your water quality and load. Price lists for supply-only orders are available on request.
We supply dosing pumps and tanks, conductivity and pH controllers, cartridge filters, RO membranes and housings, softener resin and genuine plant spares, so the chemistry and the hardware are set up together.
Safety and storage
Handling and storing treatment chemicals safely.
Most water treatment chemicals are dosed at a few parts per million, but in the drum they are concentrated acids, alkalis, oxidisers or biocides. Read the SDS for each product before it is used and keep a copy where it is stored.
- Segregate. Keep acids (descalers, acidic cleaners, cooling inhibitor) away from alkalis (amines, alkaline cleaners, passivator) and from chlorine products. Acid mixed with hypochlorite releases chlorine gas.
- Bund the store. Stand drums on spill pallets or in a bunded area that can hold the largest container, under cover and out of direct sun.
- Wear the right PPE. Chemical goggles or face shield, nitrile or PVC gloves and an apron when decanting; an eyewash point near the dosing station.
- Polymer spills are slippery. Clean polyelectrolyte powder and solution with dry absorbent before washing with water.
- Dilute the right way. Add chemical to water, never water to concentrated acid.
- Watch shelf life. Use made-up polymer solution within the time on the TDS; keep SMBS bags sealed so the powder does not oxidise.
- Label day tanks. Each dosing tank shows the product, the dilution and the date it was made up.
Troubleshooting
Why chemical programmes fail, and how we fix them.
- 01The problem
Generic products are dosed by guesswork.
What we doWater analysis and jar tests in our lab set the product and the dose, and the calculation is shared with you.
- 02The problem
Scale and corrosion come back between service visits.
What we doMonitored programmes with corrosion coupons, residual checks, cycles and blowdown records, and a monthly report.
- 03The problem
RO membranes foul and need frequent cleaning.
What we doAntiscalants and cleaners matched to your membrane projections and feed water, plus a check of pre-treatment and dechlorination.
- 04The problem
Clarifier floc is small, floats or carries over.
What we doRe-run jar tests on today's effluent, correct pH before the coagulant, and reset polymer make-up strength and dose point.
- 05The problem
Boiler still scales even though chemicals are added.
What we doTest feed water hardness: usually the softener is exhausted or not regenerating. We fix the softener, then the chemistry.
- 06The problem
Audits ask for documents that are hard to find.
What we doEvery batch ships with TDS, SDS and certificate of analysis, and monthly reports are kept in one file for your auditor.
By industry
Where our chemicals are used.
Power and steam users, sugar and distilleries, pulp and paper, hotels and hospitals, food and dairy, and pharma all run boilers, cooling towers and RO plants, and most also run an ETP.
Dairy and food
Boiler and condensate chemistry for process steam, CIP-heavy effluent that needs coagulation and dewatering.
Dairy guide →Hotels and hospitals
HVAC cooling towers with Legionella control, hot water boilers, softeners, pool chemicals and STP polymers.
Hotels guide →Pharmaceuticals
RO and purified water pre-treatment, boiler and cooling chemistry, and high-TDS effluent programmes.
Pharma guide →Glass manufacturing
Cooling circuits for furnaces and forming machines, and inorganic effluent clarification.
Glass guide →Spent coolant and oily water
Emulsion breaking, coagulation and flocculation for machining coolant and wash water.
Coolant guide →Other industries
Sugar, distilleries, paper, textiles, chemicals and power: see how we treat water in each.
All industries →Buying guide
What to ask any water treatment chemical supplier.
Use this list with every supplier, including us.
- Was the dose based on my water? Ask for the analysis and the jar test or LSI calculation behind it.
- What is the active content? Two antiscalants at the same price can differ several times in active strength.
- Does every batch come with a CoA? Plus a current TDS and SDS.
- What will I measure every day? Hardness, residual, conductivity or pH, with a simple test kit and target range.
- How is success proved? Coupons, cycles, fuel per tonne of steam, RO normalised flow or outlet TSS and COD.
- Who sets up the dosing pump? And who checks it is still dosing next month.
- Is the product compatible with my membranes and ETP? Some biocides and cationic products upset biology or foul membranes.
- Who tests independently? A NABL-accredited lab report is worth more than a supplier's own claim.
Why Rispri
One accountable partner, from lab bench to running plant.
Lab and chemicals together
Ram Chemical Enterprises works alongside Rispri Labs' NABL-accredited laboratory. Formulations are jar tested, their active concentration is checked by spectrophotometry and a CoA is issued before dispatch.
Engineering since 1999
1,498+ plants and turnkey projects, so we understand the boilers, towers, RO plants and ETPs our chemicals go into.
Quality systems
ISO 9001, ISO 14001 and ISO 45001 certified processes for procurement, production, dispatch and after-sales support.
We stay after delivery
Monthly monitoring, dosing equipment, genuine spares, operator training and O&M contracts from offices in Jaipur, Agra and Ahmedabad.
Questions
Water treatment chemicals FAQs.
What are water treatment chemicals?
Water treatment chemicals are products dosed in small amounts into boilers, cooling towers, RO plants and effluent treatment plants to prevent scale, corrosion, biological fouling and poor settling. They include oxygen scavengers, scale inhibitors, biocides, antiscalants, membrane cleaners, coagulants and flocculants.
How do I find the right chemical dose for my RO plant or ETP?
We start with a full analysis of your feed water or effluent, covering hardness, silica, alkalinity, pH, COD and TSS. For ETPs we run jar tests to find the lowest coagulant and polymer dose that meets your target; for RO we size antiscalant from membrane projections. The initial analysis and jar testing are free.
Which chemicals are used in boiler water treatment?
A typical boiler programme uses an oxygen scavenger such as DEHA (WC-1020), a sludge conditioner and scale inhibitor (WC-1022) and, where condensate is returned, a neutralising amine (WC-1025). These work on top of a softener or RO plant that removes most of the hardness, and controlled blowdown that limits dissolved solids.
What chemicals are used in a cooling tower?
Cooling towers need a scale and corrosion inhibitor dosed continuously (such as WC-1055), a biocide to control algae, bacteria and Legionella (such as WC-1030, often alternated with an oxidising biocide), and a bio-dispersant (WC-1033) to lift slime and silt. Blowdown is controlled by conductivity to hold the chosen cycles of concentration.
What is an RO antiscalant and where is it dosed?
An RO antiscalant is a chemical that stops dissolved salts such as calcium carbonate, calcium sulphate and silica from crystallising on membranes as they concentrate. It is dosed continuously at a few ppm after the cartridge filter and before the high-pressure pump, so it is fully mixed when water enters the membranes.
What is the difference between a coagulant and a flocculant?
A coagulant, such as poly aluminium chloride (PAC), neutralises the charges that keep fine particles apart so they form tiny pin-flocs. A flocculant, usually a polyelectrolyte (polyacrylamide), is a long-chain polymer that bridges those pin-flocs into large, heavy flocs that settle fast. Most ETPs use both, in that order.
Anionic or cationic polyelectrolyte: which one do I need?
Anionic polyelectrolyte usually works best after a metal coagulant in clarifiers, where it builds large settling flocs. Cationic polyelectrolyte is used mainly for dewatering biological and organic sludge on filter presses, screw presses and centrifuges. A jar test or a trial on your dewatering machine confirms the grade and charge density.
What is a good cycles of concentration for a cooling tower?
It depends on make-up water quality: with hard borewell water, 3 to 4 cycles may be the safe limit, while softened or better-quality water can run higher. Our WC-1055 programme supports up to 6 cycles. We calculate LSI and RSI at your conditions before setting the target.
How often should RO membranes be cleaned?
Clean when normalised permeate flow drops by about 10 to 15%, pressure difference rises by about 15%, or salt passage climbs noticeably, rather than on a fixed calendar. Usually an alkaline cleaner (WC-1092-B) is used first for organics and biofilm, then an acid cleaner (WC-1092-A) for scale and metal oxides.
Is hydrazine still needed as a boiler oxygen scavenger?
No. DEHA-based scavengers such as WC-1020 remove dissolved oxygen without hydrazine, which is toxic and a suspected carcinogen. DEHA is volatile, so it also protects steam and condensate lines.
What packing sizes are available and do you supply bulk orders?
Products are supplied in tamper-evident 20 L HDPE carboys, 25 kg bags or pouches, 50 L drums and 220 L HDPE drums, and bulk orders can be packed in 1,000 L IBC totes. Packing for each product is listed in the tables above.
Do you provide CoA and safety data sheets?
Yes. Every batch is dispatched with a batch-specific certificate of analysis, a technical data sheet and a GHS-format safety data sheet. These are what auditors, boiler inspectors and EHS teams ask for.
Can I buy chemicals without a service contract?
Yes. You can buy supply-only with dose guidance, or choose a monitored programme with monthly site visits and lab reports. For boilers, cooling towers and RO plants where failures are expensive, we recommend monitoring.
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