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25
2019
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02
Sludge electroplating sludge treatment projects have been successively put into operation across the country.
Author:
In the first stage of electroplating sludge treatment, it is necessary to render the sludge harmless and separate the solid phase from the liquid phase to facilitate its comprehensive utilization in later stages. Therefore, not only must various heavy metals in the electroplating wastewater be removed, but the electroplating sludge must also undergo deep dewatering. The ultra-high-pressure sludge dewatering machine developed by Zhengzhou Dingsheng, as a specialized deep-dewatering equipment, is designed specifically for sludges that are difficult to dewater—such as municipal sludge, pharmaceutical sludge, electroplating sludge, and dyeing sludge. Without adding any chemical agents, this machine can reduce the moisture content of the dewatered sludge cake to as low as 40% in a single step, thereby fulfilling the long-held aspiration of sludge disposal enterprises to achieve efficient sludge dewatering. Electroplating sludge is the “final product” of wastewater treatment in the electroplating industry, and it contains large amounts of copper.
In the first stage of electroplating sludge treatment , Harmless treatment and solid-liquid separation are required to facilitate subsequent comprehensive utilization. Therefore, it is not only necessary to remove various heavy metals from electroplating wastewater but also to carry out deep dewatering of electroplating sludge. The ultra-high-pressure sludge dewatering machine developed by Zhengzhou Dingsheng, as a specialized equipment for deep sludge dewatering, is particularly designed for sludges with difficult dewatering characteristics, such as municipal sludge, pharmaceutical sludge, electroplating sludge, and dyeing and printing sludge. Without adding any chemical agents, this machine can reduce the moisture content of the dewatered sludge cake to as low as: 40% It has fulfilled the long-held aspiration of sludge dewatering enterprises for sludge disposal.
Electroplating sludge is the “final product” of wastewater treatment in the electroplating industry, containing large amounts of valuable heavy metals such as copper, nickel, chromium, iron, and zinc. Electroplating sludge primarily originates from solid waste generated after liquid-phase chemical treatment of various electroplating effluents and electrolyte solutions from industrial electroplating plants. Since different electroplating manufacturers employ varying production and treatment processes, the composition and characteristics of the sludge can differ significantly. , The chemical composition of electroplating sludge is quite complex, containing primarily heavy metal compounds such as chromium, iron, nickel, copper, and zinc, as well as soluble salts. Electroplating sludge has a very high moisture content, reaching— 75% ~ 80% The content of compounds of chromium, iron, nickel, copper, and zinc generally ranges from... 0 5% ~ 3% Left and right ( Calculated as oxides ), Gypsum ( Calcium sulfate ) The content is: 8% ~ 10%, The content of other water-soluble salts and impurities is: 5% Left and right.
Since the introduction of the Dingsheng Sludge Drying Machine, it has been widely praised and favored by users for its exceptional sludge dewatering performance as well as its energy-saving, environmentally friendly, and efficient features. Currently, ultra-high-pressure sludge drying machines have been successively put into operation in electroplating sludge disposal projects across Shanghai, Shenzhen, Shandong, Fujian, Hubei, and other regions, making a significant contribution to the treatment of electroplating sludge and helping to advance the development of the sludge treatment and disposal industry. !
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