| 高铁酸盐对剩余活性污泥的氧化水解效能 |
| 摘要点击 3003 全文点击 2243 投稿时间：2010-08-07 修订日期：2010-10-25 |
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| 中文关键词 高铁酸盐 活性污泥 MLVSS SCOD TP NH+4-N |
| 英文关键词 ferrate activated sludge MLVSS SCOD TP NH+4-N |
| DOI 10.13227/j.hjkx.20110724 |
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| 中文摘要 |
| 针对高铁酸盐的强氧化性，提出利用高铁酸盐进行污泥氧化的实验研究.结果表明,高铁酸盐能够有效地破坏活性污泥的絮体结构，对初始浓度为12600mg·L-1的活性污泥， m(Fe)/m(SS)=0.40 μg/mg的高铁酸盐能够使活性污泥的絮体全部解体.MLVSS随高铁投加量的增加下降，并呈线性相关.随高铁酸盐投加量的不同，不同初始浓度活性污泥的溶出特性不同，初始浓度越高的污泥投加高铁后释放出的SCOD、NH+4-N、TP越高，当污泥浓度为12600mg·L-1，高铁投加量为 m(Fe)/m(SS)=0.40 μg/mg时，溶出的SCOD、NH+4-N、TP达到最大值，污泥水解后的液态物质参与污水处理过程.污泥处置的成本仅为0.25元/t.远远低于1.0元/t的传统污泥处置费用. |
| 英文摘要 |
| Using ferrate oxidized remnant activated sludge base on that ferrate hold strong oxidation capability.The results showed that: ferrate could destroy activated sludgy structure, when initial activated sludge concentrations was 12600 mg·L-1 ,m(Fe)/m(SS)=0.40 μg/mg. Ferrate made activated sludge floccules desegregations with increase of ferrate concentration the MLVSS went down. With different ferrate was put in,the different concentration activated sludge had different dissolving characteristic;the much higher initial concentration that activated sludge had,the much more SCOD, NH+4-N, TP was released.When activated sludge was 12600mg·L-1,ferrate was m(Fe)/m(SS)=0.40 μg/mg,the activated sludge released the maximum concentration SCOD, NH+4-N, TP.The liquid from sludge hydrolyze was treatment with waste water. The cost of sludge treatment is just 0.25 yuan/t that is lower than the sludge traditional treatment. |
