Traditional drawbacks of electroplating wastewater treatment method currently electroplating wastewater treatment diversion of commonly used chemical method - Integrated two-stage processing. Multisection preceding three water treatment: chromium, cyanide water and integrated water. Chrome water reducing agent to make price changes restore water with cyanide two broken cyanide oxidation heavy metal scavenger role, copper-nickel-zinc water directly before the confluence of two streams of water into a comprehensive water. After the segment of integrated water treatment, essentially alkali, PAC (PAC) and organic flocculants (PAM), the specific operation is: the integrated water pH value of 10 to 13 mentioned, forcing large alkali concentration of alkali and The reaction in the direction of heavy metal hydroxides were. Because pH> 9, outfall also starting acid and the pH dropped to 9 below. Problems of this method are: Sodium hydroxide was added during neutralization or calcium hydroxide chemical precipitant to precipitate the heavy metal ions. However, due to the different heavy metal ions in the hydroxide precipitate was generated when the optimum pH is different, as well as some heavy metal ions in solution may form a complex with the other ion (increase its solubility in water) heavy metal scavenger, the processing the effect is often not ideal. Another plant heavy metal scavenger, heavy metal ions resulting in precipitation of the hydroxide alkaline medium, in which a part of emissions with decreasing pH value of re-dissolved in water. High concentrations of heavy metals in waste residues, can not meet environmental requirements. At present, more research in practical application of heavy metal scavenger there are two categories: xanthates and dithio derivatives amino acid salts (DTC category), while DTC derivatives are the most widely used. DTC derivatives used as a heavy metal scavenger features: 1, with a strong chelating ability to effectively react with heavy metals to form insoluble matter, especially mercury, cadmium, sulfur is mainly used in the wet process; and two, almost can absorb all of the heavy metals, especially heavy metals in wastewater treatment solids scavenger, through a simple process to remove all traces of heavy metals can be dissolved; 3, metal - precipitates have good temperature stability, it is difficult to re-release of heavy metals into the environment is environmentally friendly heavy metal scavenger; heavy metal scavenger dosage _ _ Tianya century Shayibake area by heavy metal scavenger Ltd. Wuhan Tian Ya century. Wuhan Tian Ya century Ltd. (whtysj.cn.gongchang.com) is Wuhan, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Ya century in the days leading staff warmly welcome all inquiries negotiations to create Tianya century a better future.