Item 1 Upgrading project of a sewage treatment plant in an industrial park
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The industrial park is dominated by calcium carbonate stone enterprises, and the production wastewater contains a large number of powder particles and high salinity. The designed treatment scale of the project is 20,000 tons/day. Previously, the sewage treatment process of "AO+diatomite+UV" was adopted. Failed to meet the discharge standards, the "hydraulic clarification tank + AO + ceramic membrane MBR" process is now used, and the effluent meets the national "Urban Wastewater Treatment Plant Pollutant Discharge Standard" (GB18918-2002) stipulated in the Class A standard.
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