ETP Manufacturer & Supplier — Amritsar
PPCB-compliant ETP, ZLD, and STP systems for Amritsar's wool scouring, textile dyeing, food processing, surgical instruments, and Golden Temple hospitality sectors
Industry Overview
ETP Manufacturer & Supplier — Amritsar
Amritsar processes a significant share of India's raw wool. Wool arrives from Rajasthan, Himachal Pradesh, and Kashmir and goes through scouring — washing raw wool to remove lanolin, suint, sand, and vegetable matter — before dyeing and processing into textiles and carpets. Wool scouring effluent is among the hardest food and textile-adjacent wastewaters to treat: BOD up to 8,000 mg/L, FOG up to 3,000 mg/L, and colloidal organic matter that resists simple settling. PPCB classifies wool scouring as Red category. Beyond wool, Amritsar has textile dyeing and printing units, a large food manufacturing sector (papads, namkeen, spices, confectionery), the Sirhind Road surgical instruments cluster, and a tourism-hospitality sector of unusual scale. The Golden Temple draws over 100,000 pilgrims per day — the associated hotels, dharamshalas, and restaurants generate significant sewage volumes that Amritsar's municipal infrastructure struggles to accommodate.
PPCB has been in active enforcement mode in Amritsar across multiple sectors. Wool processing and textile dyeing units have received closure notices for operating without valid ETP consent. PPCB has implemented ZLD mandates for larger textile dyeing units in Punjab under NGT guidance. For the hospitality sector, PPCB and Amritsar Municipal Corporation have begun requiring STPs for large hotels and pilgrimage guesthouses. The agricultural drain network in Amritsar district — which feeds Sutlej tributaries — is monitored for industrial discharge. PPCB Amritsar regional office responds to complaints from farming communities downstream of industrial discharge points. Enforcement is complaint-driven in some cases, but systematic in textile and wool processing.
Spans Envirotech designs ETP, ZLD, and STP systems for Amritsar's wool processors, textile dyeing units, food manufacturers, surgical instruments manufacturers, and hospitality establishments. Our wool scouring ETP designs include DAF for lanolin and grease removal, MBBR biological treatment for BOD/COD, and lanolin recovery as a saleable by-product. For textile units with ZLD conditions, we design the full treatment train through MEE evaporation. For hotels and dharamshalas near the Golden Temple, we design compact, reliable STPs that fit institutional space constraints.
Industry Challenges
Key Environmental Challenges
Wool Scouring — High-FOG, High-BOD Effluent
Wool scouring produces one of the most nutrient-rich and grease-laden industrial wastewaters — lanolin (wool grease), suint (potassium salts of fatty acids), wool proteins, and pesticide traces from sheep dipping. BOD 3,000–8,000 mg/L, FOG 1,000–3,000 mg/L. PPCB Red category consent requires treatment achieving BOD <30 mg/L, oil <10 mg/L. Standard biological treatment alone cannot handle this FOG loading — DAF or centrifuge pre-treatment is essential. Without proper pre-treatment, biological systems are overwhelmed.
Textile ZLD — PPCB Punjab Mandate
Textile dyeing and printing units in Amritsar face PPCB ZLD requirements under Punjab's implementation of NGT textile industry orders. Dyeing effluent has high TDS (5,000–15,000 mg/L), reactive dyes, caustic soda residuals, and high COD. ZLD requires colour removal (coagulation/Fenton), MBBR biological treatment, RO for water recovery, and MEE or MVR evaporation for RO reject. Operating textile ZLD profitably requires high water recovery from RO (>70%) to minimise evaporation load.
Food Processing — Variable BOD and Seasonal Production
Amritsar's food manufacturers — papad, namkeen, spices, chikki — generate high-BOD effluent from production cleaning, with significant seasonal variation. Spice processing generates effluent with essential oils, colour compounds, and high COD. Namkeen and snack manufacturing generates starchy, oily effluent. PPCB requires food ETPs to consistently achieve COD <250 mg/L and BOD <30 mg/L — difficult without well-designed equalisation to buffer the variable loads.
Golden Temple Hospitality — High-Volume STP Need
Hotels, dharamshalas, and langar kitchens serving Golden Temple visitors generate sewage at volumes that Amritsar's municipal sewer and STP system cannot fully absorb. PPCB and AMC require large hospitality establishments to install on-site STPs. Kitchen wastewater has high FOG and BOD requiring grease traps and DAF pre-treatment before biological STP. The requirement for reliable 24x7 STP operation is non-negotiable — STP failure in a tourism zone draws immediate regulatory and public attention.
Surgical Instruments — Metalworking and Acid Cleaning
The Sirhind Road surgical instruments cluster manufactures scalpels, scissors, forceps, and other surgical tools — involving stainless steel machining, grinding, polishing, and acid passivation. Effluent contains metalworking coolant, polishing compounds, acids from passivation, and fine stainless steel swarf. PPCB Orange/Red category consent requires metalworking ETP with oil-water separation and acid neutralisation before discharge.
Our Solutions
Tailored Wastewater Treatment Solutions
Wool Scouring ETP — DAF and Lanolin Recovery
Complete ETPs for Amritsar wool scouring units — screening for fibre removal, equalisation, DAF (dissolved air flotation) for lanolin and grease separation and recovery, MBBR biological treatment for BOD/COD, secondary clarification, and sludge dewatering. Recovered lanolin float concentrated and sold as by-product (cosmetics, pharmaceutical, industrial lubricant raw material) — improving ETP economics. PPCB Red category CTE/CTO documentation.
Textile ZLD Systems — Amritsar Dyeing Units
ZLD systems for PPCB-mandated textile dyeing units — screening, equalisation, coagulation/flocculation with colour removal (alum or Fenton), MBBR biological treatment, multimedia filtration, RO (>70% water recovery), and MEE or MVR evaporation for RO reject. Treated water recycled to dyeing process. Online pH, TDS, COD monitoring for PPCB ZLD compliance verification.
Food Processing ETP — Equalisation and MBBR
Food industry ETPs for Amritsar's papad, namkeen, spice, and confectionery manufacturers — grease trap pre-treatment, equalisation tank for BOD load buffering, DAF for FOG removal, MBBR biological treatment for BOD/COD, secondary clarification, and filter press sludge dewatering. Systems sized for worst-case production surge conditions, not average flow. PPCB CTO documentation.
Hospitality STP — Hotels and Dharamshalas
Compact MBBR or MBR sewage treatment plants for Amritsar's hotels, dharamshalas, and large restaurants — kitchen wastewater grease trap pre-treatment, MBBR biological treatment, secondary clarification, UV disinfection. Treated water reuse for horticulture and flushing. PPCB consent documentation for hospitality sector STPs. Systems designed for reliable operation by non-specialist staff.
Surgical Instruments ETP — Oil-Water Separation and Acid Treatment
ETPs for Sirhind Road surgical instruments manufacturers — API oil-water separator or chemical emulsion breaking for metalworking coolant, acid neutralisation for passivation effluent, fine metal particle settling and filtration, pH correction. Compact systems for small-to-medium workshop scale. PPCB Orange category compliance documentation.
Technologies
Proven Technologies for Your Industry
Benefits
Why Choose Spans for Your Industry
- PPCB-compliant ETP, ZLD, and STP systems — CTE and CTO documentation support included
- Wool scouring ETP expertise with lanolin recovery for by-product revenue
- Textile ZLD experience meeting PPCB Punjab dyeing unit compliance requirements
- Hospitality STP design for Golden Temple tourism sector at scale
- Food processing ETP with equalisation for variable BOD and seasonal loads
- Surgical instruments metalworking and acid treatment for PPCB Orange category consent
- Post-commissioning AMC for sustained PPCB compliance across Punjab
- Founded 1993 — 30+ years of industrial ETP, ZLD, and STP project delivery
Success Stories
Case Studies
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