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来源:百度文库 编辑:高考问答 时间:2024/04/27 23:20:20
本文通过有效微生物EM(天意)处理校区生活污水的条件实验初步研究EM处理生活污水的效果。实验结果表明:在常温下(18℃~25℃),控制PH在7.0~8.0,配对3个投药量1/10000,3/10000,5/10000,投药量5/10000、1/10000的处理效果均较投药量3/10000的处理效果差,最佳投药量为3/10000;处理过程中污水的COD值先是随着处理时间的延长而有较明显的降低,降低一段时间后(运行2h后),COD值又都突然呈现回升趋势,回升一段时间后(运行4h后),COD值又开始下降。运行6h后,COD达到最底值。处理过程的最佳运行时间是正常运行后的6h。

关键词:有效微生物EM 投药量 最佳投药量 COD 最佳运行时间

This article (divine intervention) processes the school area sanitary sewage through effective microorganism EM the condition experiment preliminary study EM processing sanitary sewage effect. The experimental result indicated that, Under normal temperature (18 ℃ ~ 25 ℃),Controls PH in 7.0 ~ 8.0, pairs 3 to throw dose 1/10000, 3./1 million, 5./1 million, throws dose 5/10000, 1./1 million processing effect throws the dose 3./1 million processing effect to be bad, best throws the dose is 3./1 million; In the treating processes the sewage COD value is first lengthens along with the process time but has obvious reducing, after reduces period of time (to move 2h), the COD value all suddenly presents the rise tendency, after rises again period of time (to move 4h), the COD value starts to drop. After moves 6h, COD achieves the most background. After the treating processes best running time is normal operation 6h.