Food Processing Effluent Treatment Plant (ETP)
Specialised wastewater solutions for food processors
Food industry effluents are high in organic load (BOD/COD), suspended solids, fats/oils/grease (FOG), sugars and sometimes salts. Our packaged and site-built ETPs combine robust pre-treatment (screening, FOG removal), biological degradation (MBBR / SBR), and polishing (sand, carbon, UF/RO) to enable compliant discharge or reuse.
Overview — Food Processing ETP (5–300 KLD)
Applicable for effluents from washing, blanching, cooking, canning, CIP returns, bottling, and packaging lines. Typical objectives: reduce BOD/COD, remove FOG & TSS, stabilise pH and provide polishing for reuse in cleaning, cooling or process (after RO/UF).
Capacity flexibility: 5 KLD — 300 KLD. Design finalised after sample analysis and flow study.
Suggested Process Flow (Typical)
Recommendation: Use DAF for emulsified FOG & colloidal solids (e.g., oil from cooking, emulsified fats). SBR is ideal for batchy operations (bakeries, seasonal plants); MBBR for continuous lines.
Technical Specifications — 20 KLD Example
| Parameter | Value / Note |
|---|---|
| Design Flow | 20 KLD (scalable: 5–300 KLD) |
| Typical Influent | pH 4–9, BOD 500–8000 mg/L, COD 1000–15000 mg/L, TSS 100–3000 mg/L, FOG 20–2000 mg/L |
| Primary Treatment | Screening, FOG trap / DAF, equalization |
| Biological | MBBR / SBR with appropriate HRT & aeration control |
| Treated Quality (typical) | BOD < 50 mg/L (after polishing), SS < 30 mg/L; FOG < 5 mg/L after DAF & polishing |
| Polishing | Sand / Carbon / UF / RO (for reuse or high-quality discharge) |
| Sludge Handling | Thickener + Filter Press / Centrifuge (optional) |
| Automation | PLC with pH, DO, level & flow monitoring (optional) |
Final guarantees depend on influent composition and polishing steps. Pilot tests recommended for variable-strength food effluents.
Scope of Supply — Typical Turnkey Package
Process Equipment
- Screening units, FOG traps, DAF (if required)
- Equalization & neutralization tanks
- MBBR / SBR reactors, clarifiers
- Sand / carbon filters, UF/RO skids (optional)
Mechanical & Electrical
- Pumps, blowers, mixers, valves
- MCC, PLC, instrumentation (pH, DO, level)
- Filter vessels & dosing skids
Services
- Sample analysis & jar tests
- Pilot trials (DAF, MBBR skid)
- Civil drawings, erection, commissioning & training
Key Advantages
- Effective FOG & high-BOD removal to protect downstream biology
- Reduced sludge volumes with optimized biological control
- Modular design for phased expansion
- Energy-efficient aeration and automated dosing to minimize O&M
- Polishing options for reuse — reduces freshwater consumption
Frequently Asked Questions
A: Yes — after UF/RO polishing treated water can be reused for cooling, CIP wash (non-product contact) or cleaning. For direct product-contact reuse, strict microbiological control & validation is required.
Q: How do you handle seasonal peaks or large COD pulses?A: Equalization tanks, buffer storage and variable aeration control handle pulses. Sidestream or sidestream polishing can be provided if needed.
Q: Is pilot testing necessary for fruit/vegetable canning effluents?A: Pilot testing (DAF / jar tests) is recommended for high solids & oil-bearing effluents to finalize DAF and coagulation dosing.
Request Quotation / Pilot Test
Share: Site location • Daily flow (KLD) • Recent sample analysis (pH, BOD, COD, TSS, FOG, TDS) • Desired discharge limits or reuse goals.
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