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公开(公告)号：US20230264242A1
公开(公告)日：2023-08-24
申请号：US18072710
申请日：2022-12-01
发明人： Shengtian ZHANG , Mei LI , Lu YANG , Jinzhong WAN , Qun LI , Tingting FAN , Yan ZHOU , Yuanchao ZHAO , Xiang WANG
CPC分类号： B09C1/06 , B09C1/10 , B09C2101/00
摘要： The invention discloses a method for reducing odor in remediation of pesticide chemical contaminated soil, including the following steps: S101. odor control sustained-release particles are prepared and evenly covered on the surface of the pesticide chemical contaminated soil according to a certain dosage; S102. odor covering base materials and mixed bacterial solution are prepared, and the odor covering soil is prepared by mixing the odor covering base materials and mixed bacterial solution in proportion, and then the odor covering soil is covered on the surface of the pesticide chemical contaminated soil covered by step S101;
S103. heating rods are inserted into the pesticide chemical contaminated soil covered by step S102, and the surface layer of the pesticide chemical contaminated soil is heated to 30˜40° C. The invention can effectively reduce the odor gas in the remediation of the pesticide chemical contaminated soil, and will not pollute the soil twice, and the method for reducing odor is simple and convenient.-
2.发明公开公开(公告)号：US20240017312A1
公开(公告)日：2024-01-18
申请号：US18296368
申请日：2023-04-05
发明人： Mei LI , Shengtian ZHANG , Liming Han , Lu Yang , Jinzhong Wan , Qun Li , Yan Zhou , Tingting Fan , Decheng Jin , Yuanchao Zhao , Xiang Wang
CPC分类号： B09C1/10 , B09C1/06 , B09C2101/00
摘要： An energy-saving in-situ steam thermal desorption process for remediating pesticide contaminated sites comprises S1, determining a contaminated layer; S2, primary steam injection; S3, secondary steam injection and regulator injection; wherein the regulator comprises the following components in parts by weight: 0.2-0.8 parts by weight of hyper-thermophilic microbial agent, 0.5-0.9 parts by weight of carbamyl phosphate, 2-3 parts by weight of cyclic 2,3-diphosphoglycerate, 3-4 parts by weight of ethylenediamine tetraacetic acid, 15-17 parts by weight of wort, and 5-6 parts by weight of sodium octadecyl sulfate; S4, tertiary steam injection; S5, conservation. The method for remediating pesticide chemical contaminated sites using the thermal desorption technology combines the in-situ steam thermal desorption technology with hyper-thermophilic microorganisms, the hyper-thermophilic microorganisms have good adaptability to high-temperature environment, good thermal stability and high-temperature catalytic activity, and the remediation effect on soil can be greatly improved by combining the microorganisms with hot steam.
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