折流厌氧—好氧组合处理畜禽养殖废水现场试验研究

发布时间：2018-04-12 14:07

本文选题：养殖废水 + ABR反应器　；参考：《浙江工业大学》2017年硕士论文

【摘要】：猪场养殖废水具有高有机物浓度、高悬浮物、高氨氮等特点,对环境污染极大。本研究采用折流厌氧-好氧组合工艺处理该养殖废水,通过现场试验探索其处理猪场养殖废水的可行性。主要研究结果如下:分别接种普通厌氧污泥和颗粒污泥的折流式厌氧反应器(ABR)在低有机负荷下启动,接种颗粒污泥可以明显缩短启动时间;反应器运行稳定后,随着HRT缩短和有机负荷提高,CODcr去除率维持在80%以上,最佳HRT可以达到16 h;当好氧生物接触氧化池HRT为16 h时,CODcr去除率达到40%以上,出水CODcr稳定在400 mg/L以下,同时硝化效果良好,出水NH4+-N低于20 mg/L。在最佳运行工况下,ABR-好氧生物接触氧化组合工艺CODcr总去除率达到85%以上,运行稳定。研究证明ABR-好氧生物接触氧化组合工艺适合于处理养殖废水,能够有效去除养殖废水中的悬浮物、CODcr和氨氮,具有较高的实用价值。
[Abstract]:Pig farm wastewater has the characteristics of high concentration of organic matter, high suspended matter, high ammonia nitrogen and so on.In this study, a combined baffle anaerobic aerobic process was used to treat the aquiculture wastewater, and the feasibility of the treatment of pig farm wastewater was explored through field experiments.The main results are as follows: ABR, inoculated with conventional anaerobic sludge and granular sludge respectively, was started under low organic loading, and the start-up time was significantly shortened by inoculation of granular sludge.With the shortening of HRT and the increase of organic loading, the removal rate of CODcr was kept above 80%, the best HRT was 16 h, when the HRT of aerobic biological contact oxidation tank was 16 h, the removal rate of CODcr was more than 40%, the effluent CODcr was stable below 400 mg/L, and the nitrification effect was good.The effluent NH4 -N is lower than 20 mg / L.The total removal rate of CODcr in ABR- aerobic biological contact oxidation process is more than 85% under the optimum operating conditions, and the operation is stable.It has been proved that ABR- aerobic biological contact oxidation process is suitable for the treatment of aquaculture wastewater and can effectively remove suspended matter CODcr and ammonia nitrogen from the culture wastewater, which is of high practical value.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X713

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