Heavy metal wastewater treatment equipment

1、 Principles of Heavy Metal Wastewater Treatment Technology

electricityflocculationThe reaction principle is based onaluminium、ironWaiting for metalanodeUnder the action of direct current, the anode iscorrosionGenerate Al and Fe ions, which undergo a series of processeshydrolysisThe processes of polymerization and oxidation of ferrous ions have developed into varioushydroxylComplex compounds, multi-core hydroxy complexes, and evenhydroxideTo remove colloidal impurities and suspended impurities from wastewaterCoagulation precipitationAnd separated At the same time, charged pollutant particles swim in the electric field, and some of their charges are neutralized by the electrode, which promotes their movementUnstableJu Chen.

Wastewater treatmentelectrolysisDuring flocculation treatment, not only does it have a coagulation and precipitation effect on colloidal and suspended impurities, but also due to the anode'soxidationandcathodeofReducing effectIt can remove various pollutants from water.

2、 Treatment of wastewater containing heavy metals-The role of electrocoagulation water treatment technology

1. Electrocoagulation for oil removal; 2. Electrocoagulation for COD degradation; 3. Electrocoagulation to remove turbidity, suspended solids, SiO2, etc; 4. Removal of heavy metal ions by electrocoagulation; 5. Electrocoagulation for color reduction; 6. Electrocoagulation reduces water hardness; 7. Electrocoagulation disinfection and sterilization.

3、 Characteristics and advantages of electrocoagulation water treatment equipment for heavy metal containing wastewater treatment

1.Widely capable of removing pollutants; 2. Adapt to a wide range of pH conditions; 3. The formed sediment is dense, has good clarification effect, produces less sludge, and has low sludge moisture content; 4. No need to add chemical agents; 5. Good controllability and easy operation, simply changing the voltage of the external electric field can control the operating conditions; 5. Small footprint, low investment cost, low operating cost, and low maintenance expenses; 6. High efficiency in purifying water quality and short required time; 7. The market prospects are promising, applicable to a wide range of industries, and there is no secondary pollution.

4、 Application field of electrocoagulation water treatment equipment for heavy metal containing wastewater treatment

1Electrocoagulation inwastewater treatmentApplication in

Electrocoagulation can be widely applied in various industries of wastewater treatment. for exampleelectroplating wastewaterCar wash wastewater,Dyeing and bleachingAnd textile wastewater, paper mill wastewater,

Slaughterhouse wastewater, food and beverage plant wastewater, petrochemical plant wastewater, oilfield wastewater, pharmaceutical plant wastewater, mining wastewater,landfill leachateWastewater treatment,Agricultural wastewaterWastewater from petrochemicals, paint dyes, pigments, cooling water tower wastewater, ship bottom sewage purification, port catchment purification, wood treatment wastewater, domestic sewage treatment in tourist scenic areas, etc.

2Electrocoagulation inelectroplatingWastewater (includingheavy metal）Application in Processing

electricityflocculationAtElectroplating wastewater treatmentIn the process of reuse, it can overcome the problems that are difficult to solve by chemical methods, and not only can it effectively removeelectroplating wastewaterIt contains heavy metal ions and can reduce the salt content in water, allowing the treated water to be reused in the original process. The electroplating wastewater treated by electrocoagulation can achieve the following treatment effects: Cr<0.001, with a maximum removal rate of 100%; Ni<0.005 has the highest removal rate, reaching 100%; The removal rate of Zn<0.062 can reach 57%.

3Application of electrocoagulation in the treatment of dye (high chromaticity) wastewater

Dye wastewater has the characteristics of high COD, high chromaticity, high salt content, and difficult biochemical degradation of organic matter. Previously, both domestically and internationally, it was commonly used物化法andBiological LawThe combination method is used to process it. However, due to the complex composition of drainage, the difficulty of treatment remains high. With the development of electrochemical technology, the use of electrocoagulation to treat dye wastewater has the advantages of small equipment, small footprint, simple operation and management, high COD removal rate, and good decolorization effect.

4ElectricityflocculationAt the shipyard (includingEmulsified oil、heavy metal）wastewater treatmentApplication in

Electrocoagulation in the treatment of oil latex SS、 Organic compounds have unique effects. It can be widely used in industries such as petrochemicals, paint dyes, pigments, car wash wastewater, oilfield wastewater, etc.

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