| 摘要: |
| 对SBR法处理高浓度生活污水的可行性进行了研究。结果表明,该工艺在悬浮性固体(MLSS)含量为3 g/L,COD容积负荷为1.0 kg/(kg·d),好氧4 h,溶解氧(DO)3～5 mg/L；厌氧2 h,DO<0.2 mg/L；好氧1 h,DO3 mg/L；缺氧1 h,DO<0.5 mg/L以及试验温度22～28 ℃,周期为9 h的运行条件下,对COD、NH+4-N、TP去除率分别为97.5％,94.9％,97.1％;该工艺有利于反硝化除磷过程的同步实现,其适宜的污泥龄为20 d。 |
| 关键词: 序批式活性污泥法 高浓度生活污水 污水处理 脱氮 除磷 |
| DOI： |
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| 基金项目:西北农林科技大学校基金项目（042M098） |
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| Study on high concentration municipal wastewater treatment by sequencing batch reactor |
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| Abstract: |
| The paper tests the possibility of treating high concenttation municipal waste water by using Sequencing Batch Reactor.Results show that,when mixed liquid suspended solid is 3 g/L,sludge loading is 1.0 kg/(kg·d),aeration is 4 h,DO 3-5 mg/L;anaerobic 2 h,DO<0.2 mg/L;aeration 1 h,DO<0.5 mg/L,tempreture 22-28℃,and the circle is 9 h,the removal efficiency of COD,NH+4-N and TP reaches 97.5%,94.9%,97.1% respectively.Simultaneous dephosphatation and denitrification are also proved by SBR.All these confirm that the best sludge retention time is 20 d. |
| Key words: SBR,high concentration municipal waste water,waste water treatment,denitrification,dephosphatation |
