CHECOA
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标签模块
Pesticide chemical industry
Fine chemicals
Mechanical processing
Third party operation service
Hazardous waste reduction and recovery

High concentration

wastewater from an enterprise in Jiangsu Province


Industry

Agrochemical,Jiangsu famous enterprise

Waste Water Type

 Toxic wastewater

Treatment Capacity

 60m3/d

Influent Hydrazine Pollutants

 ~20,000ppm

Main Pollution Components

 Hydrazine hydrate

Objective

The removal of hydrazine pollutants, which have a great toxic effect on the biochemical system, will lead to the collapse of the biochemical system

Treatment process

 UV-AOP

Effluent

 Hydrazine pollutants:<100ppm


Treatment of high concentration and refractory wastewater

Industry

Agrochemical, Jiangsu famous enterprise

Waste Water Type

 High concentration and refractory wastewater

Treatment Capacity

 400m3/d

Inlet  CODcr

 10,000~20,000ppm, TN:1000~2000ppm,氨氮:~1000ppm

Main Pollution Components

Pyridines、DMEA、etc.

Objective

 Degradation of pollutants, discharge up to standard

Treatment Process

Tssb +Advanced Oxidation + A / O + Advanced Treatment

Effluent

It can be used as make-up water for cooling tower.

High concentration and high toxicity wastewater from an enterprise in Guangdong

Industry   Fine chemical industry, a famous enterprise in Guangdong

Waste Water Type

  Highly toxic wastewater

Treatment Capacity

 30m3/d

Inlet  CODcr

 40,000~60,000ppm

Main Pollution Components

 THF

Objective

Degradation of pollutants, discharge up to standard

Treatment Process

 UV-AOP+TSSB+A/O

Effluent

 CODcr<300ppm

Mechanical processing wasteemulsion

Industry

Mechanical processing  

Waste Water Type

 Waste emulsion

Treatment capacity

 10m3/d

Inlet  CODcr

 60,000~200,000ppm

Main Pollution Components

 Aromatics, machining emulsifiers

Treatment Process

Efficient demulsification

Effluent

 CODcr<20,000ppm

Hazardous waste treatment

Industry

 Hazardous waste treatment(HW09)

Treatment Capacity

 30m3/d

Waste Water Type

 Waste emulsion

Inlet  CODcr

 ~100,000ppm

Main Pollution Components

 Machining emulsifier

Treatment Process

Efficient Demulsification + Biochemical Treatment + Advanced Treatment

Effluent

As cooling water make-up water for reuse


Operation project of an agricultural chemical enterprise in Taicang, Jiangsu


Scale

500 m3/d


Main Process

UV Advanced Oxidation System → Regulating Tank → Anaerobic Reaction Tank → Buffer Tank → A / O Biochemical Tank → MBR Tank → Outlet Tank

Comparison of Inlet And OutletWater Quality

Index

Numerical Value

   

An agricultural chemical enterprise operation project in Nantong, Jiangsu


Scale

 500 m3/d


Main Process

Regulating Tank → Anaerobic Reaction Tank → Primary A / O Reaction Tank → Fenton Reaction Tank → Secondary  A / O Reaction Tank → MBR Tank → RO System (emergency standby) → Buffer Tank→Outlet Tank


Comparison of Inlet And OutletWater Quality


Effluent Quality Table

CODcr

SS

TN

NH3-N

(mg/L)

(mg/L)

(mg/L)

(mg/L)

pH

(mg/L)

(mg/L)

(mg/L)

Emission limits

Pollutant

Sewage Quality Table

Index

Numerical Value

Sewage Quality Table

The project has  been completed and put into use in 2016, which is a typical performance of the  third-party environmental operation

project of Checoa.

Effluent Quality Table

Emission      limits

Pollutant

CODcr

CODcr

TN

TDS

NH3-N

300
800~1000
200
10,000~20,000

SS

TP

NH3-N

CODcr

NH3-N

SS

6~9
≤35
≤45
≤200
≤400
≤500
≤500
≤5000
≤8
6~9

pH

(mg/L)

(mg/L)

(mg/L)

(mg/L)

~3000

~300

~400

(mg/L)

(mg/L)

(mg/L)

(mg/L)

High salt wastewater from an enterprise in AnHui province

Industry

Agrochemical,Anhui famous enterprise

Waste Water Type

High concentration and high salt wastewater

Inlet  CODcr

10,000~20,000ppm

Main Pollution Components

O-phenylenediamine, catalyst, etc

Objective

Remove macromolecular organics such as o-phenylenediamine and catalyst, and recover  salt

Treatment Process

UV-AOP

Effluent

CODcr :~2,500ppm,O-phenylenediamineCatalyst can not be detected

Steam out salt

Clean, colorless, o-phenylenediamine < 0.01%, catalyst not detected

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