Products · 8 items
Water Treatment Chemicals Supplier in Mumbai
Water and wastewater treatment chemicals do the jobs that equipment alone cannot. Coagulants neutralise the charge on fine particles so they can clump together; flocculants bridge those particles into heavy, settleable flocs; pH regulators bring acidic effluent into range for biological treatment; disinfectants control bacteria and biofouling; and membrane chemicals such as antiscalants and dechlorination agents protect RO elements from scale and oxidation.
Navbharat Water supplies treatment chemicals from Mumbai to effluent treatment plants (ETPs), sewage treatment plants (STPs), water treatment plants and RO systems across India. NWPL supplies these chemicals; it does not manufacture them. The range covers eight products: poly aluminium chloride (PAC) and ferric chloride as coagulants; anionic polyelectrolyte as a flocculant for clarifiers and settling tanks; cationic polyelectrolyte as a conditioner for sludge dewatering on decanters, belt presses and filter presses; caustic soda for pH neutralisation; sodium hypochlorite for disinfection and UF/MBR biofouling control; phosphonate/polymeric RO antiscalant; and sodium metabisulfite (SMBS) for RO feed dechlorination.
Choose chemicals by treatment stage and water chemistry. PAC works across a wide pH 5–9 window and produces less sludge than alum, while ferric chloride suits high-COD effluent and phosphate removal at pH 5–7. Anionic polymers flocculate mineral and inorganic solids; cationic polymers condition organic and biological sludge. The typical dosages on each product page, for example 20–80 mg/L for PAC and 2–6 mg/L for RO antiscalant, are starting points only: always confirm the dose with a jar test on your own water before plant-scale use. Pack sizes range from 25 kg bags and carboys to drums, IBC totes and tankers, depending on the chemical.
Products in this range
Poly Aluminium Chloride (PAC)
(Aln(OH)mCln-m)x · 20–80 mg/L
Pre-hydrolyzed inorganic coagulant for charge neutralisation — reacts faster than alum, performs across a wide pH 5–9 window, and needs far less pH correction. Produces 30–50% less chemical sludge and lower residual aluminium, with dense rapid-settling flocs for high-turbidity ETP and WTP streams.
Ferric Chloride
FeCl3 · 30–150 mg/L
High-performance coagulant for high-turbidity, high-COD industrial effluent. Precipitates phosphate as FePO4 (optimal pH 5–7), strips heavy metals such as chromium and zinc, removes colour, and doubles as a sludge-thickening aid — forming dense, fast-settling flocs.
Anionic Polyelectrolyte
Polyacrylamide · 0.5–3 mg/L
High-molecular-weight (12–22M Da) anionic polyacrylamide flocculant. Bridging-flocculates inorganic and mineral suspended solids into heavy, fast-settling flocs — dosed downstream of coagulants in secondary clarifiers and settling tanks. Performs best at neutral-to-high pH.
Cationic Polyelectrolyte
Polyacrylamide · 1–5 mg/L
Cationic polyacrylamide (10–80% charge density) that neutralises negatively-charged organic and biological sludge — the standard conditioner for decanter centrifuges, belt presses, filter presses and screw presses. Increases cake dryness, improves filtrate clarity, and cuts polymer consumption per kg of dry solids.
Caustic Soda
NaOH · 20–200 mg/L (pH dependent)
Industrial-grade alkalinity builder for neutralising acidic wastewater streams in equalisation and pH-correction tanks — ahead of biological treatment and metal precipitation. Also used in UF/membrane CIP regimes. Supplied as lye or flakes.
Sodium Hypochlorite
NaOCl · 2–5 mg/L · 10–12% Cl2
High-strength disinfectant (10–12% active chlorine) for pre-disinfection and biofouling control on UF/MBR membrane trains. Low continuous dosing at the intake or UF feed inactivates bacteria before they build EPS cake layers — measurably slowing transmembrane pressure rise.
RO Antiscalant (Phosphonate / Polymeric)
Proprietary blend · 2–6 mg/L
Phosphonate/polymeric threshold inhibitor that prevents CaCO3, CaSO4, BaSO4 and silica scaling on RO/NF membranes. Dosed at the high-pressure pump inlet to hold LSI in range — maintains flux, extends membrane life, and cuts CIP frequency.
Sodium Metabisulfite (SMBS)
Na2S2O5 · 2–5 mg/L · 97–98%
High-purity (97–98%) dechlorination agent that protects polyamide RO membranes from oxidative degradation — membranes begin to fail after roughly 1,000–2,000 ppm-hours of chlorine exposure. Dosed upstream of the RO cartridge filter at ~1–1.5 ppm per 1 ppm free chlorine; also used as a biostatic preservative for stored elements.
Treatment chemical selection by function
| Product | Function | Typical dosage | Form |
|---|---|---|---|
| Poly Aluminium Chloride (PAC) | Inorganic coagulant for charge neutralisation | 20–80 mg/L | Powder / Liquid (both available) |
| Ferric Chloride | Coagulant for high-turbidity, heavy metal & phosphate removal | 30–150 mg/L | Dark liquid / anhydrous solid |
| Anionic Polyelectrolyte | Flocculant — forms heavy settled flocs | 0.5–3 mg/L | White granular powder |
| Cationic Polyelectrolyte | Sludge dewatering conditioner | 1–5 mg/L | White granular powder / liquid emulsion |
| Caustic Soda | Alkaline pH adjustment | 20–200 mg/L (pH dependent) | Lye / flakes |
| Sodium Hypochlorite | Pre-disinfection & biofouling control (UF / MBR membranes) | 2–5 mg/L | Yellow liquid (10–12% active chlorine) |
| RO Antiscalant (Phosphonate / Polymeric) | Prevents CaCO3, CaSO4 & silica scaling on membranes | 2–6 mg/L | Liquid concentrate |
| Sodium Metabisulfite (SMBS) | Dechlorination — protects polyamide RO membranes from oxidation | 2–5 mg/L (~1–1.5 ppm per 1 ppm free chlorine) | White powder (97–98% purity) |
Frequently asked questions
Does Navbharat Water manufacture its treatment chemicals?
No. Navbharat Water supplies water and wastewater treatment chemicals from Mumbai but does not manufacture them. Its own manufacturing covers filtration products, RO and UF membranes and treatment plant equipment.
What is the difference between PAC and ferric chloride?
Both are coagulants. PAC is pre-hydrolysed, works across pH 5–9, needs less pH correction and produces 30–50% less chemical sludge than alum. Ferric chloride suits high-turbidity, high-COD industrial effluent, precipitates phosphate best at pH 5–7, and removes heavy metals and colour.
How is the correct chemical dose determined?
Typical ranges are listed on each product page, but the right dose depends on your water. Run a jar test on a representative sample to confirm the dose before full-scale dosing, then fine-tune it against plant performance.