Abstract:The remediation effect of DDTs in aged contaminated farmland soil using blood meal was investigated in the field test. Meanwhile, the effects of remediation conditions and degradation characteristics of DDTs isomers and homologues were studied in this paper. The results showed that the method of biostimulation using blood meal was a practical way to remediate the DDTs aged contaminated farmland soil. Compared with glucose, the blood meal was a long term effective method on stimulating indigenous microorganisms to degrade DDTs in the soil, and the soil catalase activity and invertase activity were greatly improved. To plow the land once a week was helpful to remediate the contaminated soil by biostimulating using blood meal. At the same time, as the high toxicity homologues DDTs, PP'-DDE was effectively degraded, and the potential environmental risks reduced significantly. Hence, the present study demonstrated that biostimulation using blood meal supplemented by plowing the soil once a week had the great potential application for remediating the DDTs contaminated farmland soil.
王辉, 王晓旭, 孙丽娜, 吴昊, 罗庆, 荣璐阁. 血粉刺激修复DDTs污染农田土壤的现场实验[J]. 中国环境科学, 2017, 37(2): 654-660.
WANG Hui, WANG Xiao-xu, SUN Li-na, WU Hao, LUO Qing, RONG Lu-ge. Field test on biostimulation to remediation DDTs in contaminated farmland soil using blood meal. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(2): 654-660.
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