Industrial waste water and water pollution volume surge, it became the most important source of pollution. Shenzhen range of enterprises, mainly in the electronics, plastics, electroplating, metal, printing, food, printing and dyeing industries. From the wastewater emissions and harmful levels of environmental pollution point of view, electroplating, circuit boards, surface treatment of inorganic pollutants based wastewater and food, printing and dyeing, printing and sewage and other organic pollutants based wastewater treatment priorities. Shenzhen gradual development of electroplating, printed circuit boards, printing and dyeing, paper making, organic solvents polluting industries, sewage treatment industry, large-scale farming industry and power sector emissions and upgrading work. With emissions from large industrial wastewater pollution wide range of emission complex way; wide range of pollutants, the concentration of large fluctuations; highly toxic pollutants, endangering large variation of pollutant emissions after molybdenum plating large differences; recovery more difficult and so on.
Industrial waste water depends on water usage. Metallurgy, paper, petroleum industry, power and other industrial water consumption, waste water is also large, if refining a tonne of steel mill waste water 200 to 250 tons. But the plant's actual amount of discharged waste water recycling rate is also about the same. For example, the high rate of recycling steel plant, refining an amount of discharged waste per ton only 2 tons.
Industrial sewage water complex and can not deal with a single process, generally using a variety of methods combined process. Industrial sewage treatment approaches are generally three ways: First, industrial wastewater discharged after treatment alone, the second is industrial wastewater discharged into municipal sewage treatment plant with treatment, three industrial wastewater pretreatment into the city sewage treatment plant. Pipe network need to further improve the region's businesses require their own treatment discharge standards. For sewage treatment enterprises, is very strange, what they are for wastewater treatment process using not know what, so they will choose to sewage problem to environmental protection enterprises to deal with. That where to find environmentally friendly enterprises, which strength, how about qualifications? Wastewater treatment costs has become a sewage enterprises. Many sewage units faced up to spend money to build sewage treatment station, but was found after the completion of sewage treatment costs are too high, resulting in costly facilities as decoration.
More sewage enterprises because no suitable process technology, experience and strength of environmental protection enterprises, leading to sewage facilities are completed but not treatment compliance; author recommends the sewage treatment process sewage enterprises do not quite understand, it is best to pass as sewage treasure wastewater projects such services platform to find environmentally friendly company, to compare a number of wastewater treatment experience with similar environmental protection enterprises, more contact with several make a decision, take a look enterprises to provide technical, cases and quotes to choose; After all, shop around is justified. Sewage enterprises can open the treasure site bao.dowater.com sewage effluent data submitted, there will be able to handle the wastewater environmental companies to contact, and you can choose to do. Sewer network a better regional sewage discharged into the sewage companies will choose to municipal sewage treatment plant with treatment, sewage plant has taken over certain criteria, some companies will choose pretreated sewage discharged into the municipal sewage treatment plant.
Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
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