Strategies for Improving the Efficiency of Wastewater Treatment in Chemical Industry Parks——Process Optimization Based on Combined Surface Flow Wetlands
River pollution is one of the main manifestations of environmental pollution,which brings great harm to residents'lives and is not conducive to the healthy development of social economy.Biofilm method and ecological treatment method are common methods for water pollution control,but high energy consumption and land use tension will also follow.The bio-ecological process has a small cost investment and good decontamination effect.The biological turntable has high efficiency,simple management,and good application prospects.The use of combined surface flow wetland to remove pollutants is a typical technology for ecological treatment,which is a comprehensive utilization of the low cost of constructed wetland technology and the advantages of ecological management,and has become a key research direction of water environment restoration.In this study,we took a sewage treatment plant in a city in Northwest China as the object to explore the sewage treatment effect of the combined process of"aeration biological filter(BAF)+vertical flow constructed wetland+surface flow constructed wetland+ecological pond",so as to provide reference for the improvement of the ecological environment of the chemical industry zone.
chemical industrywastewater treatment efficiencycombined surface flow wetlands
NETL
NSTL
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