ETP Manufacturer & Supplier — Jaipur
RSPCB-compliant ETP and ZLD systems for Jaipur's textile dyeing, gems & jewellery, auto-components, and food processing industries — serving Sanganer, Sitapura, and Vishwakarma industrial clusters
Industry Overview
ETP Manufacturer & Supplier — Jaipur
Jaipur's pollution problem is concentrated. About 5,000 textile printing and dyeing units in Sanganer and Sitapura discharge into the Dravyavati river, and RSPCB has been trying to fix this for two decades. The NGT took up Dravyavati restoration as a specific court-monitored matter — which means closures actually happen here. RSPCB has issued mass closure notices to non-compliant dyeing units in Sanganer on multiple occasions. Gems and jewellery manufacturing — Jaipur is India's largest coloured gemstone market — adds another layer of hazardous effluent: cyanide from gold electroplating, chrome and nickel from metal finishing, and acid from jewellery cleaning operations. Together, textile and jewellery manufacturing make Jaipur one of Rajasthan's most demanding ETP compliance markets.
RSPCB has been in active enforcement mode in Jaipur since NGT's Dravyavati orders. The practical implications: ZLD is mandatory for all textile dyeing and printing units in Sanganer and Sitapura — not aspirational, mandatory. Units that attempt to operate without ZLD or with non-functional ZLD face sealed gates. Jaipur Municipal Corporation pushed development of a CETP for Sanganer, but individual ZLD compliance is still required for larger units. RSPCB Jaipur regional office conducts surprise inspections and has authority to act on complaints from river adjacent communities. For gems and jewellery units, RSPCB specifically monitors cyanide and heavy metals in effluent — these are Red category industries with the most rigorous consent conditions.
Spans Envirotech designs and commissions ETP and ZLD systems for textile, jewellery, auto-components, food processing, and marble processing manufacturers across Jaipur. Our textile ZLD experience covers the full treatment train from colour removal through MEE/MVR evaporation. For gems and jewellery clients, we design cyanide destruction, chrome/nickel precipitation, and acid recovery systems meeting RSPCB's heavy metals discharge standards. We provide CTE and CTO documentation support throughout the process.
Industry Challenges
Key Environmental Challenges
Textile ZLD — RSPCB Mandate, NGT Court Monitoring
Sanganer and Sitapura textile dyeing units face RSPCB ZLD mandates backed by NGT court orders. Textile effluent is chemically complex — reactive dyes, caustic soda from mercerisation, high TDS (10,000–25,000 mg/L), high COD (1,500–5,000 mg/L), and persistent colour. ZLD demands ETP secondary treatment, RO for water recovery, and MEE or MVR thermal evaporation to eliminate liquid discharge. Without operational ZLD, RSPCB closure is a real and immediate risk.
Gems & Jewellery — Cyanide and Heavy Metals
Jaipur's jewellery manufacturing involves gold and silver electroplating (cyanide baths), nickel plating for base metals, chrome finishing, and acid pickling. These are Red category industries under RSPCB. Effluent contains free and complex cyanide, hexavalent chromium, nickel, and zinc at concentrations requiring chemical treatment before any discharge. RSPCB imposes strict consent conditions with quarterly heavy metals analysis requirements.
Auto-Components — Metalworking and Surface Treatment
Sitapura RIICO area hosts auto-component manufacturers generating metalworking fluid emulsions, coolant wastes, degreasing effluent, and phosphating bath wastewater. Oil and grease loads up to 500 mg/L require emulsion breaking and DAF before biological treatment. Phosphating effluent contains zinc and manganese requiring precipitation. RSPCB Sitapura units face Orange/Red category compliance conditions.
Marble and Granite Processing — Slurry Management
Jaipur is a major marble processing centre. Marble cutting and polishing generates high-suspended solids slurry with alkaline pH and marble dust loading. ETP systems must handle slurry settling and cake dewatering. RSPCB requires SS <100 mg/L in final discharge. Without proper sedimentation and filter press systems, solid waste disposal also becomes a compliance issue.
Food Processing — Seasonal and Variable Loads
Jaipur's food processing cluster — dairy products, snacks, spices, bakeries — generates high-BOD effluent with variable seasonal loads. Many units operate within city limits where drainage infrastructure is limited and RSPCB scrutiny is higher. Effective food ETPs must handle BOD spikes, FOG (fat, oil, and grease), and cleaning chemical surges without requiring continuous expert operation.
Our Solutions
Tailored Wastewater Treatment Solutions
Textile ZLD — Colour Removal to MEE Evaporation
Complete ZLD systems for Sanganer and Sitapura textile dyeing units. Treatment train: bar screening, equalisation, coagulation/flocculation with colour removal (alum, PAC, or Fenton), MBBR biological treatment, secondary clarification, multimedia filtration, Activated Carbon polishing, RO system for water recovery (>70% recovery), and MEE or MVR evaporation for RO reject. Online pH, TDS, and COD monitoring for RSPCB compliance. CTE/CTO documentation provided.
Gems & Jewellery ETP — Cyanide Destruction, Metal Precipitation
Two-stage chemical ETPs for jewellery electroplating effluent: alkaline chlorination for cyanide destruction (free and complex cyanide), followed by chrome reduction (sulphuric acid + sodium metabisulphite), heavy metal precipitation (lime/NaOH), clarification, and pH correction. Final effluent meets RSPCB consent limits for cyanide (<0.2 mg/L), chromium (<0.1 mg/L), nickel, and zinc. Sludge filtered and stored for authorised disposal.
Auto-Components ETP — Oil-Water Separation
ETPs for Sitapura auto-components manufacturers — API oil-water separator or chemical emulsion breaking for metalworking fluids, DAF for FOG removal, MBBR biological treatment for residual COD, secondary clarification, and treated water reuse for cooling tower makeup where feasible. RSPCB Orange/Red category compliance documentation support.
Food Processing ETP — DAF and MBBR
Compact food industry ETPs for Jaipur's dairy, snack food, and spice manufacturers — DAF for FOG removal, MBBR biological treatment for BOD/COD reduction, secondary clarification, and sludge dewatering by filter press. Systems designed for reliable operation by plant maintenance staff without continuous specialist oversight.
Marble Processing — Sedimentation and Filter Press
Slurry treatment systems for Jaipur marble processing units — inclined plate settlers for marble dust, tube settlers for polishing slurry, pH correction (acid dosing for alkaline marble wash), and filter press for dry cake disposal. Final treated water recycled for cutting and polishing operations, minimising freshwater consumption.
CETP Pre-Treatment for Sanganer Small Units
On-site primary and secondary pre-treatment ETPs for small Sanganer dyeing units contributing to the Sanganer CETP. Systems designed to meet CETP inlet quality norms — pH 6–9, SS <200 mg/L, oil <10 mg/L — with documentation for RSPCB and CETP operator submissions.
Technologies
Proven Technologies for Your Industry
Benefits
Why Choose Spans for Your Industry
- RSPCB-compliant ETP and ZLD systems — CTE and CTO documentation support included
- Textile ZLD expertise calibrated to Sanganer and Sitapura RSPCB enforcement context
- Gems and jewellery cyanide and heavy metals treatment meeting RSPCB Red category standards
- NGT court-monitored compliance support — Dravyavati river restoration context
- Online monitoring integration as required by RSPCB for ZLD units
- Compact system design for RIICO industrial plot constraints in Sitapura
- Post-commissioning AMC for sustained RSPCB compliance across Rajasthan
- Founded 1993 — 30+ years of industrial ETP and ZLD project delivery
Success Stories
Case Studies
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