Industries / Process & Recovery / Petrochemical
Industries We Serve Chlorides · Organics

Petrochemical

Phthalates & Chlor-Alkali  ·  Process Water, ETP, Recovery & ZLD
High-Purity Process Water Production · Utility · ETP Chlorides · Organics 89–93% Recovery

The production of phthalates and chlor-alkalis demands robust, efficient water management — generating diverse wastewater streams while requiring high-quality water for production, utility and ancillary operations.

Ahura Aqua provides specialised treatment tailored to this sector across all four critical applications — Process Water, ETP, Recovery and Zero Liquid Discharge — ensuring both operational efficiency and environmental responsibility.

Plant Water Journey Raw Water → ZLD
RAW 01
Raw Water
PROC 02
Process Water (DM)
UTIL 03
Utility & Ancillary
PLANT 04
Phthalates / Chlor-Alkali
ETP 05
Effluent ETP
RCVY 06
Wastewater Recovery
ZLD 07
Zero Liquid Discharge
Two Production Streams · Diverse Wastewater
Phthalates Plasticizer Production

Esterification-based production generates wastewater carrying organic compounds and process-specific chemicals that must be neutralised and treated before reuse or discharge.

Organic Compounds Process Chemicals High COD
Chlor-Alkali Brine Electrolysis

Electrolysis of brine to produce chlorine, caustic soda and hydrogen yields high-chloride, high-TDS effluent that demands precipitation, clarification and salt-tolerant recovery.

Chlorides High TDS Dissolved Salts
Four Critical Applications end-to-end
We cover the complete water cycle of a petrochemical plant — generating high-purity process & utility water, treating diverse effluent, recovering it for reuse and eliminating the final concentrate.
i Process Water (DM)
High-purity, contamination-free

High-purity water is crucial to prevent contamination and ensure product quality. A multi-stage train delivers consistent demineralised water for the production process.

Treatment Train
PSF → ACF → SFT → RO → DM
Output High-purity DM
ii Utility & Ancillary
Cooling & boiler feed

Water for cooling, boiler feed and support services — treated to each application’s specific quality requirement to prevent scaling, corrosion and other operational issues.

Treatment Train
SFT → RO → DM
Grade Boiler / Cooling
iii Effluent Treatment (ETP)
Organics · chlorides

Diverse effluent — organic compounds, chlorides and process-specific chemicals — is treated before discharge or recovery via neutralization, precipitation, coagulation and clarification.

Treatment Train
Neutralization → Chemical Precipitation → Coagulation → Flocculation → Clarification → Sludge Handling
Targets Organics · Chlorides
iv Recovery & Zero Liquid Discharge
89–93% recovered

Treated ETP water is further processed for reuse, achieving 89–93% recovery; the remaining 7–11% concentrate is evaporated via MVR for complete ZLD and sustainable, compliant operations.

Treatment Train
HRSCC → PSF → ACF → UF → RO-1 → RO-2 → MVR
Recovery 89–93%
Wastewater Recovered
89–93%
recovered & reused across plant operations
Recover 89–93% → eliminate the final 7–11% for Zero Liquid Discharge

Advanced recovery delivers substantial cost savings and reduced freshwater intake. The remaining 7–11% concentrated stream is evaporated via Mechanical Vapour Recompression (MVR) — separating water from dissolved solids for complete ZLD and environmentally compliant operations.

MVR MEE Zero Liquid Discharge
Contaminants Treated
Organic Compounds Chlorides Process-Specific Chemicals High COD High TDS Dissolved Salts Suspended Solids Hardness & Alkalinity
Our Solutions for this Industry
i High-Purity Process Water (DM) PSF · ACF · SFT · RO · DM for production → ii Utility / Boiler & Cooling Water Conditioned water for cooling & boiler feed → iii Effluent Treatment Plant (ETP) Neutralization → precipitation → clarification → iv Wastewater Recovery & Reuse HRSCC + UF + two-stage RO — 89–93% → v Zero Liquid Discharge MVR evaporation of the final 7–11% concentrate → vi Chemical Precipitation & Clarification Coagulation, flocculation & clarification → vii Sludge Handling & Dewatering ETP sludge to filter press →