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文摘
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针对养猪场水冲粪工艺悬浮物含量高、水量不稳定的特性,采用二级沉淀的前处理工艺,选择厌氧池-缺氧池-好氧生物滤池作为主体单元,通过好氧出水回流方式强化系统的脱氮性能。根据实验数据分析比较不同进水负荷、回流比条件下污染物的去除情况,并且对不同实验参数的能耗进行了量化。启动后,COD与NH_4~+-N容积负荷分别可达12 kg/(m~3? d)与0.64 kg/(m~3?d)。在300%回流体积比的运行条件下,系统整体效能最高,COD、NH_4~+-N、TN去除率分别为97.6%、82.8%、85.0%,能耗为0.95 kWh/m~3。 |
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其他语种文摘
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Based on the characteristics of high suspended solid, flux in piggery wastewater flow, two connected settling tank and a series of anaerobic tank-predenitrification tank-aerobic biological filter were selected as the pretreatment process and main part in this experiment, respectively. This configuration and aerobic output refluxing were expected to strengthen its denitrification efficiency. Pollutant removal efficiency were compared with each other according to the data under different hydraulic loading and reflux ratio, and a quantitative analysis of power consumption was carried out at the same time. After the start-up, COD and ammonia volumetric loading reached as much as 12.0 kg/(m~3?d), 0.64 kg/(m~3?d). When the reflux volume ratio was 300%, entire efficiency reached its peak, and power consumption was 0.95 kWh/m~3. Removal efficiency of COD, NH_4~+-N, TN was 97.6%, 82.8%, 85.0%, respectively. |
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来源
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水处理技术
,2014,40(12):100-103,114 【扩展库】
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关键词
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生物滤池
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养猪废水
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回流比
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脱氮
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地址
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中国科学院广州地球化学研究所, 广东, 广州, 510640
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-3770 |
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学科
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行业污染、废物处理与综合利用 |
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基金
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中国科学院知识创新工程重要方向项目
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文献收藏号
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CSCD:5310451
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