| With the gradual implementation of national energy conservation policy and water-saving society "Eleventh Five-Year" planning, the industrial companies were demanded to implore waste water "zero emissions" police and a series of initiatives to treat waste water and protect environment, especially the steel industries which had gotten more attention. This paper assessed the running impact of wastewater treatment technology improved in Xinjiang Bayi Iron&Steel Co. industrial of Baosteel Group by field tests, which used "efficient sedimentation tank (with lime, soda softening system)+MBBR moving bed membrane bioreactor+TGV high efficiency filter" as the main physical and chemical, biological wastewater treatment processes. The results are follows:(1) The test result showed that the "efficient sedimentation tank (with lime, soda softening system)+MBBR moving bed membrane bioreactor+TGV high efficiency filter" and the "UF+RO+sodium ion exchange" processes were mature, reliable and practical, which had significant benefits to treat waste water.(2) By using the "efficient sedimentation tank (with lime, soda softening system)+MBBR moving bed membrane bioreactor+TGV high efficiency filter" process to treat waste water, it could remove80.34%of COD,90.23%of ammonia,80.22%of petroleum substances and75%of turbidity.(3) Thirdly, after improving the wastewater treatment technology inBaosteel Xinjiang Bayi Iron&Steel plant, it could help to reduce2628tons of COD yearly and to decrease pollution on surface water.(4) It could help Xinjiang Bayi Iron&Steel Co. industrial to save￥17.863million every year by using this wastewater treatment technology. |
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