Advanced Treatment and Reclaimed Water Reuse System for Industrial Wastewater

QILEE QL-MBRRO Series is an integrated containerized wastewater reclamation system specially engineered for high-concentration Palm Oil Mill Effluent (POME). It combines anaerobic/aerobic biochemical treatment, MBR membrane bioreactor, security filtration and reverse osmosis desalination to decompose high-load organics, remove suspended solids, oil, nitrogen and dissolved salts, producing high-purity recycled water for factory circulation or boiler feed. Fully skid-mounted & automated, it realizes rapid field installation, low labor demand and stable reuse performance under variable POME organic load conditions.

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Product Overview

Core Working Principle

Wastewater flows sequentially through: Pretreatment → Anaerobic Tank (phosphorus release) → Anoxic Tank (denitrification for nitrogen removal) → Aerobic Tank (COD degradation & nitrification) → Secondary Sedimentation Tank (solid-liquid separation) → Advanced Treatment → Discharge / Reclaimed Water Reuse.

Activated sludge microorganisms are utilized to remove organic matter, ammonia nitrogen, total nitrogen and total phosphorus from wastewater.

Pretreatment Unit (Circular Sedimentation Tank Cluster on the Left)

Bar Screen → Equalization Tank → Radial Flow Primary Sedimentation Tank

Function: Remove palm fiber, large suspended solids and sediment; balance water quality and flow rate.

Biochemical Treatment Unit

Anaerobic Treatment → Aerobic Biochemical Tank → Secondary Sedimentation Tank

Degrade COD, BOD, oil & grease and ammonia nitrogen, and remove most organic pollutants.

MBR Membrane Bioreactor (Front Modular Zone of Central Plant Building)

Membrane modules retain activated sludge for solid-liquid separation.

Effluent with ultra-low suspended solids is supplied as RO feedwater.

RO Reverse Osmosis Advanced Desalination System

MBR Effluent → Security Filter → High-pressure Pump → RO Unit

Two types of effluent: ✅ RO Permeate: High-grade clean water for on-site production circulation ⚠️ RO Concentrate: High-salinity wastewater, recirculated to upstream process or treated independently

Water Storage and Chemical Dosing System (On-site Vertical White Tanks)

Chemical dosing unit: acid/alkali, flocculant, antiscalant

Permeate tank (reuse clean water), concentrate tank

Effluent Discharge

Discharge up to standard / Reclaimed water reuse within plant

Product Application

1）Municipal Sector (Most common; facilities of this style are widely adopted in municipal wastewater treatment plants) Treatment of urban domestic sewage for collecting residential wastewater.

2）Comprehensive Wastewater Treatment for Industrial Parks (High demand overseas, especially in the Middle East, South Africa and Southeast Asia)

Treat mixed wastewater from industrial parks, including organic industrial wastewater generated from food processing, beverage, paper-making, textile, grain & oil industries, etc.

3）Single Industrial Scenario (Applicable for organic wastewater)

✅ Suitable applications:

Food & beverage factories, slaughterhouses & breeding farms, palm oil mills, starch factories

Paper-making, pulping, fermentation, biopharmaceuticals

Municipal wastewater from large residential communities, tourist resorts and mining settlements

❌ Not recommended: High-salinity wastewater, heavy metal-containing wastewater and refractory wastewater from heavy chemical industries. Such wastewater requires preliminary physical-chemical pretreatment and cannot be directly fed into this biochemical system.