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- W2358050442 abstract "The aim of the research was to treat the wastewater from pigment production better.The assistant materials in lead chrome yellow production such as Al2(SO4)3,nitric acid,caustic soda and lead nitrate solution were taken as medicaments to treat the wastewater from pigment production and the treatment effect was compared with that by ferrous sulfate method.The feasibility analysis of lead chrome yellow production technology showed that the concentration of total lead in the wastewater was 0.018 mg/L and the concentration of chrome was 4.160×10-8mg/L,which both accorded with the discharge standards.After the wastewater was treated by using lead chrome yellow production technology in fact,the concentration of hexavalent chromium was 0.361 mg/L,pH value was 6.24,the concentration of total chromium was 0.963 mg/L and CODcr was 67.200 mg/L.The standard exponents of all indices were all less than 1,so the standard-attainment discharge could be realized.Compared with ferrous sulfate deoxidization method,lead chrome yellow production technology was fitter to the production requirements of enterprises.It not only treated the pollution of heavy metals,but also it reclaimed and utilized lead and chrome resources,and it reduced or avoided the secondary pollution,which could gain good economic benefit and social benefit.It is feasible to take lead chrome yellow production technology to treat and reclaim the wastewater." @default.
- W2358050442 created "2016-06-24" @default.
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- W2358050442 date "2007-01-01" @default.
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- W2358050442 title "Discussion on the Treatment of Wastewater from Pigment Production" @default.
- W2358050442 hasPublicationYear "2007" @default.
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