Dehydration of electronics, circuit board and electroplating sludge

       The belt filter press produced by doyenchina has the advantages of low moisture content, large treatment capacity, low operation cost, strong corrosion resistance, convenient operation and 24-hour continuous operation.

       At present, the belt filter press is more and more accepted by more and more electronic, circuit board and electroplating enterprises because of its advantages in large capacity and continuous operation, so as to replace the original box filter press and plate frame filter press. It is an important equipment in electronic, circuit board sewage treatment and electroplating mud cake recovery. The working conditions of the belt filter press in electronic sludge dewatering, such as: water content of filter cake, hourly treatment capacity, trouble free working time, etc., are related to the selection of the belt filter press’s own process technology, materials used and flocculant. We are willing to work with you according to the actual situation of sewage treatment in your unit, We will work out a more scientific plan for sludge dewatering. Welcome to visit our manufacturing workshop. According to the statistics and investigation of the current situation of electronic industry wastewater treatment in China, there are seven widely used methods: (1) chemical precipitation method, which is divided into neutralization precipitation method and sulfide precipitation method. (2) Oxidation reduction treatment includes chemical reduction, ferrite and electrolysis. (3) Solvent extraction. (4) Adsorption method. (5) Membrane separation technology. (6) Ion exchange method. (7) Biological treatment technology, including bioflocculation, biosorption, biochemistry and phytoremediation.

       The composition of wastewater from electronic industry such as electroplating and circuit board is very complex. Except for wastewater containing cyanide (CN -) and acid-base wastewater, heavy metal wastewater is a kind of wastewater with great potential harm in electroplating industry. According to the classification of heavy metal elements in heavy metal wastewater, it can be generally divided into chromium (CR) wastewater, nickel (Ni) wastewater, cadmium (CD) wastewater, copper (Cu) wastewater, zinc (Zn) wastewater, gold (AU) wastewater, silver (Ag) wastewater, etc. The treatment of electroplating wastewater has been paid more and more attention at home and abroad. A variety of treatment technologies have been developed to eliminate and reduce the discharge of heavy metals by transforming toxic treatment into non-toxic, harmful treatment into harmless, recycling precious metals, water recycling and other measures. With the rapid development of electroplating industry and the increasing requirements of environmental protection, at present, electroplating wastewater treatment has begun to enter the stage of clean production process, total amount control and circular economy integration. Resource recycling and closed-circuit circulation are the mainstream of development.           

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