盐度对废水生物处理的影响 |
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引用本文: | 仝致琦,田守祥. 盐度对废水生物处理的影响[J]. 河南气象, 2008, 31(1): 32-34 |
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作者姓名: | 仝致琦 田守祥 |
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作者单位: | 河南大学环境与规划学院,河南开封475004 |
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摘 要: | 研究了废水中不同含盐量对生化处理效果以及生物学变化规律的影响。在废水含盐量低于22g/L时,废水生化处理系统对COD的去除率可稳定在70%左右,污泥活性良好;随着进水盐浓度的增加,含盐量达到22g/L时,污泥活性开始受到抑制,COD去除率急剧下降到50%左右;当废水含盐量达到31g/L时,污泥活性明显受到抑制,污泥絮体开始部分解体,COD去除率下降到40%左右。
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关 键 词: | 盐度 废水 生化处理 化学需氧量 污泥活性 |
Impacts of Salinity on Wastewater Biotreatment |
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Affiliation: | Tong Zhiqi, Tian Shouxiang (College of Environment and Planning of Henan University, Kaifeng 475004, China) |
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Abstract: | It is reported that salinity affects the wastewater biotreatment system as well as the impact of biology activity. When the wastewater salinity less than 22 g/L, wastewater biotreatment system can be stabilized at COD removal of around 70% , sludge activity is well. When the wastewater salinity to 22 g/ L, sludge activity begins inhibited, and COD removal sharp declines to around 50%. When the wastewater salinity to 31 g/L, sludge activity is significantly inhibited, sludge floc begins disintegrating, and COD removal rate drops to 40%. |
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Keywords: | salinity wastewater biotreatment COD sludge activity |
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