【正文】 copper and other metals removal and recovery has brought trouble, safely and effectively deal with mixed copper plating Electroplating waste water treatment waste water is still an arduous taskCurrently, the main copper electroplating wastewater by chemical methods, ion exchange, membrane separation, adsorption, biological methods, etc. These methods are monly used in heavy metal wastewater treatment method which, this paper describes the copper electroplating wastewater specific application.At present, usually by chemical neutralization, coagulation integrated copper electroplating wastewater treatment, waste water in the acid, alkali and in the same time, the copper ions to form copper hydroxide precipitate, and then by the solidliquid separation device to In addition to sediment.PH value of water in a single copper , will be able to remove the standard copper ion precipitation, generally of copper in electroplating wastewater and iron coexist, the control pH value of 8 to 9, but also enable it to meet emission standards . However, for both copper and other heavy metals and plexes with mixed electroplating wastewater, the removal of copper is not good, often do not discharge standard, mainly because this method is to adjust the wastewater treatment of pH value in real terms, and a variety of optimum precipitation pH value of metal in different, making the removal of bad。 Furthermore if the wastewater contains cyanide, ammonium plex ions form plex with copper ions, copper ions from solution is not easy, making the copper ions can not meet emissions standards. Especially for mixed copper cyanide containing waste water treatment, the concentration of copper ions and is almost directly proportional to the concentration of CN, CNas long as the waste water in the presence of copper ion concentration in the effluent will not be standard [1]. This makes the use of copper and precipitation of mixed wastewater effluent treatment ineffective, especially for the poor removal of copper. precipitationWastewater Treatment sulfide precipitation has great advantages and can solve some of the weak nonpliance of heavy metals in plex state issues, the solubility of copper sulfide is much lower than the solubility of copper hydroxide, and the reaction of a wide range of pH values, curing some things can precipitate copper plex, so do not need segregation [2]. However, sulfide precipitation small and difficult settlement, limiting its application, while the presence of cyanide sulfide precipitation, will dissolve part of the sulfides precipitation.2 ElectrochemicalElectrochemical treatment of heavy metal waste water with high efficiency, automatic control, the advantages of less sludge, and wastewater treatment can be directly recycled copper plating of copper and copper in wastewater treatment to adapt to a wide range of concentrations, especially for higher concentrations (copper concentration greater than 1 g / L when) there are certain economic benefits of waste water, but the current low efficiency at low concentrations. The method is mainly used for electroplating copper in the electroplating industry, in addition to the requirements of 3 plating membrane separation technology copper electroplating wastewater treatmentMembrane treatment of industrial waste water is generally used in reverse osmosis, ultrafiltration and a bination of both, membrane treatment of industrial wastewater is the key to choose the right under the separation conditions of the membrane. Using reverse osmosis membrane separation technology for treatment of electroplating wastewater containing copper have been reported a lot [10], the method of electroplating wastewater containing copper plex effects are good, some have been used in industry, and with other water treatment technologies Used to obtain good results. In addition, treatment of heavy metal liquid waste in the United States, Japan, Germany has been reported, and some empirical laws have been, F. valenzuela, etc. [11] using Span80 salicylic acid oxime liquid membrane system in the copper mining waste water processing, and the establishment of a stirring removal of copper Dynamic model. 4 Treatment of electroplating wastewater containing copper adsorptionAdsorption of heavy metal wastewater treatment has many advantages, as the focus of treatment research, developed a number of good performance sorbents, in particular the use of industrial waste and agricultural residue as adsorbent, and the modification of the existing adsorbents to improve their adsorption, a research hotspot in recent years.Zeolite and stone low prices, the widely used, stone adsorption of copper ions can reach more than 95%。 kyanite under appropriate conditions can reach 100% of the copper ions adsorption effect。 cigarette ash, slag, etc. can be used as adsorbent copper electroplating wastewater, and synthetic coal ash from the smoke can absorb heavy metals 4A zeolite, the adsorption of copper ions works well [12]. Another modification to the existing adsorbents can greatly enhance the exchange capacity and efficiency. Liai Yang et al [13] modification of clinoptilolite to improve the adsorption properties, the effective removal of copper, and the simultaneous removal of zinc, separated, lead, heavy metals, industrial effect is good。 Selvaraj Rengaraj [14] on the long and short ammoniated water permeability and proton bauxite for modification to achieve the concentration of copper was 100 mg / L removed 95% of waste water for low concentrations of copper wastewater treatment opened up the road.Current research focus to a number of plant and animal waste as adsorbent, in order to increase the adsorption capacity and adsorption selectivity, modified, modified adsorbent after the adsorption of copper ions increased significantly. By tartaric acid modified rice husk greatly improve the adsorption of copper ions [15], after the alkali treatment by adsorption of chicken feat