| 米糠与氧化钙、过磷酸钙联用钝化Pb污染土壤 |
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| 引用本文： | 舒冉君,陈玉萍,吕文英,邹雪刚,王雅兰,王雅辉,刘国光.米糠与氧化钙、过磷酸钙联用钝化Pb污染土壤[J].环境科学学报,2018,38(2):730-736. |
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| 作者姓名： | 舒冉君 陈玉萍 吕文英 邹雪刚 王雅兰 王雅辉 刘国光 |
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| 作者单位： | 广东工业大学环境科学与工程学院, 广州 510006,广东工业大学环境科学与工程学院, 广州 510006,广东工业大学环境科学与工程学院, 广州 510006,广东工业大学环境科学与工程学院, 广州 510006,广东工业大学环境科学与工程学院, 广州 510006,广东工业大学环境科学与工程学院, 广州 510006,广东工业大学环境科学与工程学院, 广州 510006 |
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| 基金项目： | 广东省自然科学基金（No.2015A030313483）；广东省教育厅特色创新类项目（No.2015KTSCX030）；广东省普通高校创新团队建设项目（自然科学）（No.2015KCXTD007）；广东省科技计划项目（No.2017A020216010） |
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| 摘 要： | 研究了生物质材料米糠及其与氧化钙、过磷酸钙联用对土壤中重金属Pb的钝化作用.结果表明,向土壤中加入米糠可增大土壤pH值,增加土壤中重金属Pb的稳定性.米糠投加量每增加2%,土壤pH值增大约0.3.米糠投加量增大,Pb稳定效率也随之增大,6%米糠投加量60 d时,Pb稳定化效率达到38.06%,弱酸提取态降低28.90%.6%米糠+2%氧化钙联用、6%米糠+0.6%过磷酸钙联用均可对土壤中Pb产生较好的钝化效果,60 d时的稳定效果分别为47.36%、44.85%.6%米糠+2%氧化钙对Pb污染土壤有较好的钝化调节作用,可增大土壤pH,从而促进酸可提取态Pb向其他稳定形态转变.
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| 关 键 词： | 土壤 铅 米糠 酸可提取态 稳定效率 |
| 收稿时间： | 2017/6/20 0:00:00 |
| 修稿时间： | 2017/8/1 0:00:00 |
Immobilization of lead contaminated soil using the combination fixative of rice bran and calcium oxide, calcium superphosphate |
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| SHU Ranjun,CHEN Yuping,L&#; Wenying,ZOU Xuegang,WANG Yalan,WANG Yahui and LIU Guoguang.Immobilization of lead contaminated soil using the combination fixative of rice bran and calcium oxide, calcium superphosphate[J].Acta Scientiae Circumstantiae,2018,38(2):730-736. |
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| Authors: | SHU Ranjun CHEN Yuping L&#; Wenying ZOU Xuegang WANG Yalan WANG Yahui and LIU Guoguang |
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| Institution: | Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006,Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006,Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006,Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006,Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006,Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006 and Department of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006 |
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| Abstract: | Soil incubation experiments were conducted with the biomass materials of rice bran, calcium oxide and superphosphate combined application to investigate the passivation effect of lead contaminated soil. The results showed as follows:adding the rice bran into soil could increase the pH value and the stability of lead in soil. The soil pH increased by about 0.3 for each 2% increase in the amount of rice bran dosage. The stabilization efficiency reached to 38.06% and acid extractable was reduced by 28.90% with 6% rice bran after 60 day. At day 60,the joint use of 6% rice bran and 2% calcium oxide, 6% rice bran and 0.6% superphosphate also resulted in a great stability, which was 47.36% and 44.85% respectively. 6% rice bran + 2% calcium oxide has good passivation regulation on Pb contaminated soil, which can increase the soil pH.Thereby, acid extractable lead could be transformed to stability fractionation. |
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| Keywords: | soil lead rice bran acid extractable stabilization |
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