Chemical Industry Effluent Treatment Plant (ETP)
Why specialised treatment is essential for chemical effluent
Chemical process effluents can contain corrosive pH, high COD, toxic organics, solvents, phenolics, heavy metals and salts. A reliable ETP integrates neutralization, physicochemical separation, targeted biological processes and specialised polishing or destruction (AOP) to achieve regulatory limits or prepare feed for ZLD units.
Overview — Chemical ETP (5–300 KLD)
Our chemical ETP packages are engineered for safe and effective handling of hazardous and non-hazardous industrial streams. Typical features include raw wastewater segregation, neutralization, chemical precipitation, oil/solvent separation, advanced oxidation (AOP) for refractory organics and polishing with UF/RO or activated carbon. ZLD integration is available for high-salinity or zero-discharge requirements.
Capacity flexibility: 5 KLD — 300 KLD. We strongly recommend sample analysis and pilot testing for solvent-bearing or highly toxic streams prior to final design.
Suggested Process Flow (Typical Chemical ETP)
Critical: For solvent or toxic organics, integrate source separation + AOP / adsorption. Pilot trials are recommended to size AOP and RO pre-treatment correctly.
Typical Technical Specifications — 20 KLD Example
| Design Flow | 20 KLD (scalable: 5–300 KLD) |
| Influent Characteristics (example) | pH 2–12, BOD 200–5000 mg/L, COD 500–10000 mg/L, TSS 50–2000 mg/L, solvents/phenolics variable |
| Segregation | Separate highly acidic/alkaline & solvent streams for specific treatment |
| Primary Treatment | Screening, oil/solvent separation (API/DAF), neutralization |
| Chemical Treatment | Coagulation, chemical precipitation (for heavy metals / colloids) |
| Biological | MBBR / SBR (selected based on toxicity & load; MBBR often preferred for stability) |
| Advanced Treatment | AOP (H2O2/UV / O3), Activated Carbon adsorption, UF/RO polishing |
| Expected Treated Quality | TSS <30 mg/L (after polishing), BOD <50 mg/L (typical); final values depend on influent & polishing) |
| ZLD Option | UF → RO → MEE / ATFD / Crystallizer for brine handling & solid recovery |
| Automation & Safety | PLC control, pH/ORP sensors, safe chemical dosing & secondary containment for hazardous streams |
Note: Guarantees and power/chemical consumption are provided after sample analysis and pilot testing.
Scope of Supply — Typical Items
Process Items
- Segregation tanks, equalization, neutralization tanks
- DAF / API separators, oil skimmers
- Dosing & mixing systems (acid/alkali/coagulant)
- AOP skid, carbon vessels, UF / RO skids (if required)
Mechanical & Electrical
- Pumps, blowers, mixers, filter presses
- MCC, PLC, instrumentation (pH, ORP, DO, level)
- Safety interlocks, secondary containment measures
Services
- Sample analysis, pilot trials (jar test / pilot skid)
- Civil drawings & foundation design
- Site erection, commissioning & operator training
Key Advantages
- Safe handling & segregation for hazardous streams
- Targeted AOP for refractory organics and toxic compounds
- Option to integrate solvent recovery & resource recovery systems
- MBBR-based compact designs for continuous operation
- Turnkey delivery with compliance & safety measures
Frequently Asked Questions
A: Yes — but solvent streams usually require source separation and either solvent recovery (distillation) or adsorption + AOP. Pilot tests determine the best approach.
Q: What about toxic organics & phenolics?
A: AOP (O3, UV/H2O2) followed by biological polishing and activated carbon is effective. We recommend pilot trials for sizing and dosing.
Q: Do you provide ZLD solutions?
A: Yes. For high TDS / hazardous salts we integrate UF→RO→MEE/ATFD and crystallization depending on site economics.
Request Quotation / Pilot Test
Share: Site location • Daily flow (KLD) • Sample analysis (pH, BOD, COD, TSS, specific organics, TDS) • Desired discharge limits or reuse goals.
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