| 乙酸盐对废水生物脱氮除磷影响的研究 |
| 摘要点击 982 全文点击 1307 修订日期：1993-05-15 |
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| 中文关键词 废水处理 生物脱氮除磷 污泥沉降性 乙酸盐 |
| 英文关键词 wastewater biological nitrogen phosphorus activated sludge settleability |
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| 中文摘要 |
| 考察了乙酸盐(钠)含量对循序间歇式废水生物脱氮除磷工艺的氮、磷去除效果及污泥沉降性能的影响。试验结果表明,废水中乙酸盐(钠)含量对PO43--P、NOx--N去除效果的影响较NH4+-N的明显。随着乙酸盐(钠)浓度的增加,PO43--P及NOx--N的去除率相应提高。乙酸盐(钠)的最低起始浓度为125mm/L,但超过215mg/L后,便产生污泥膨胀现象。 |
| 英文摘要 |
| In this paper, the effects of acetate on biological N and P removal rates and activated sludge settleability were studied. A sequential biological batch reactor (SBR) was used. Experimental results demonstrate that:Acetate has morde effects on PO43--P and NOx--N removal than on NH4+-N removal. The removal rates of PO43- and NOx--N became higher with increase in initial acetate concentrations. The least required initial concentration of acetate is 125×10-6. As the initial acetate concentration reached 215×10-6, the bulking of activated sludge occured. |
