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Position: Home > Articles > Rapid Infiltration Bed Consisting of Artificial Soil and Earthworm for Treating Municipal Sewage Journal of Agro-Environment Science 2003,22 (03) 304-307

城市生活污水人工土-蚯蚓快滤复合处理床研究

作  者:
朱夕珍;肖乡;崔理华;刘雯
单  位:
广州市环境保护局;华南农业大学资源环境学院
关键词:
人工土快滤床;有机质积累;蚯蚓;生物修复
摘  要:
不同砂土比瓷盆试验结果表明,当砂土比为9∶9时适宜于蚯蚓生存。采用此种砂土比配制成人工土壤填充模拟土柱进行了为期6个月的试验,研究了蚯蚓对污水的净水效果及有机质的降解情况。结果表明,加入蚯蚓的土柱比对照具有更好的处理效果,它不但可提高COD、BOD5、NH4+-N、TN和TP的去除率,分别为2%~4%、2%~5%、8%~14%、3%~13%和3%~6%,而且还可以减轻人工土柱中有机质的积累和堵塞问题。
译  名:
Rapid Infiltration Bed Consisting of Artificial Soil and Earthworm for Treating Municipal Sewage
作  者:
ZHU Xi zhen1, XIAO Xiang2, CUI Li hua1, LIU Wen1(1. College of Natural Resource and Environment, South China Agricultural University, Guangzhou 510642,China; 2. Guangzhou Municipal Environmental Protection Bureau, Guangzhou 510032,China)
关键词:
artificial soil; rapid infiltration bed; organic matter accumulation; earthworm; bioremediation
摘  要:
A pot experiment with different ratios of sand to soil was conducted to show that 1∶ 1 ratio of sand to soil was superior for earthworm live. And a period of 6- month experiment was conducted by using artificial soil columns filled with this mixture. The results showed that the soil columns with earthworm had higher removal rate than that of those soil column without earthworm. The technique described could not only enhance the removal rates for COD, BOD5, - N, TN and TP by 2% ~ 4% , 2% ~ 5% , 8% ~ 14% , 3% ~ 13% and 3% ~ 6% , respectively, but also reduce organic matter accumulation in soil columns and its clogging problem.

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