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- W2357684095 abstract "Aiming at providing reference for comprehensive administration of water environment, sampling survey was carried out with regard to the chemical oxygen demand(COD) level of sewage produced by small and medium battery enterprises in Jiangsu, Zhejiang and Shanghai. HgSO4, H2SO4-Ag2SO4and K2Cr2O7solution were added into the sewage sample, and after blending, then microware digestion and cooling, the sample was assessed using UV-VIS spectrophotometer. The results show that sewage COD level at the outlet was from 8.64 to 51.60 mg/L with sewage discharge coefficient varying from 2.76 to 38.06 kg/(104 kVAh). After disposal, the COD level of sewage at the outlet is apparently lower than that of the original sewage producing export. The COD level of sewage at the export of lead-acid battery plants is lower than the standard limitation 100 mg/L, meeting the National Standard for Comprehensive Sewage Discharge, but total sum of sewage must be reined to control the total COD level." @default.
- W2357684095 created "2016-06-24" @default.
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- W2357684095 date "2014-01-01" @default.
- W2357684095 modified "2023-09-24" @default.
- W2357684095 title "Examination results analysis for chemical oxygen demand of lead-acid battery sewage" @default.
- W2357684095 hasPublicationYear "2014" @default.
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