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环境工程学报 2011
Nitrogen removal from wastewater at different salt concentrations by two kinds of activated sludge in SBR
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Abstract:
The difference of nitrogen removal from wastewater at salinity levels of 0%,0.9%,1.2%,1.5% and 1.8%(W/V)(NaCl)was investigated by using conventional and salt-tolerant activated sludge,respectively,which were domesticated in two same SBRs.The SBR operational process consisted of anaerobic,aerobic and anoxic phases with HRT of 1,6 and 1 h.The results showed that salt-tolerant activated sludge had a better characteristic of nitrogen removal than conventional activated sludge at each level of salinity.A stable ...