Page 208 - 《精细化工）》2023年第10期

第 40 卷第 10 期 精 细 化 工 Vol.40, No.10
2 023 年 10 月 FINE CHEMICALS Oct. 2023

水处理技术与环境保护
热解油基钻屑/橘皮生物炭钝化修复铜铅污染土壤

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刘向明 ，邓小刚 ，徐倩霞 ，罗 斌 ，邱海燕 ，兰贵红
（1. 西南石油大学 化学化工学院，四川 成都 610500；2. 中国民用航空飞行学院 数据工程与行为科学
研究院，四川 广汉 618307；3. 四川省生态环境科学研究院，四川 成都 610041）
摘要：将热解油基钻屑（OBDC）/橘皮（OB）生物炭（OBDCs-OB）加入到 Cu（Ⅱ）和 Pb（Ⅱ）污染土壤中
进行为期 83 d 的钝化修复实验，探究 OBDCs-OB 用于钝化修复铜铅污染土壤的效果及其对土壤微生物的影响。
结果表明，OBDCs-OB 表面具有—OH 及—COOH 等官能团、碳酸盐岩和黏土矿物等矿物组成以及多孔结构，
可作为吸附剂使用；对比空白土壤，加入 OBDCs-OB 后，土壤阳离子交换容量（CEC）增加 18.29 cmol/kg，维
持 pH 在 6.80；土壤中可酸溶态 Cu（Ⅱ）和 Pb（Ⅱ）含量分别降低 18.21%和 20.07%；Cu（Ⅱ）和 Pb（Ⅱ）的
潜在浸出毒性分别降低 52.8%和 92.8%，有效钝化了 Cu（Ⅱ）和 Pb（Ⅱ）；土壤微生物总数最大值为 8.6×10 10
cfu/g，土壤脱氢酶与脲酶含量最大值为 127.10 μg TPE /(g·6 h)和 167.10 mg NH3-N /(kg·24 h)，增加了土壤微生物群落
多样性和丰富度，可促进土壤微生物生长。
关键词：热解油基钻屑；重金属离子固定化；铜；铅；微生物群落结构；土壤修复；环境保护
中图分类号：X53；X703 文献标识码：A 文章编号：1003-5214 (2023) 10-2286-08

Pyrolytic oil-based drilling cuttings/orange peel for
remediation of copper-lead contaminated soil

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LIU Xiangming , DENG Xiaogang , XU Qianxia , LUO Bin , QIU Haiyan , LAN Guihong
（1. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan,
China; 2. Institute of Data Engineering and Behavioral Sciences, Civil Aviation Flight University of China, Guanghan
618307, Sichuan, China; 3. Sichuan Academy of Eco-Environmental Sciences, Chengdu 610041, Sichuan, China）
Abstract: An 83-day passivation and remediation experiment was conducted by adding the pyrolytic
oil-based drilling cuttings (OBDC)/orange bark (OB) biochar (OBDCs-OB) into Cu(Ⅱ) and Pb(Ⅱ)
contaminated soil, and the passivation and remediation performance of OBDCs-OB on Cu(Ⅱ) and Pb(Ⅱ)
contaminated soil and its influence on soil microorganisms were investigated. The results showed that
OBDCs-OB had functional groups such as —OH and —COOH, mineral compositions such as carbonate
rocks and clay minerals, and porous structure, which could be used as adsorbent. Compared with those of
blank soil, the cation exchange capacity (CEC) of soil treated by OBDCs-OB increased by 18.29 cmol/kg,
and the pH was maintained at 6.80. Moreover, acid-soluble Cu(Ⅱ) and Pb(Ⅱ) content in soil decreased by
18.21% and 20.07%, while the potential leaching toxicity of Cu and Pb decreased by 52.8% and 92.8%,
respectively, indicating effective passivation of Cu(Ⅱ) and Pb(Ⅱ). The maximum value of soil microbial
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population was 8.6×10 cfu/g, and the maximum value of soil dehydrogenase and urease activities was

127.10 μg TPE/(g·6 h) and 167.10 mg NH3-N/(kg·24 h), showing enhancement in the diversity and richness and
growth improvement of soil microbial community.
Key words: pyrolytic oil-based drilling cuttings; heavy metal ion immobilization; copper; lead; microbial
community structure; remediation of soil; environmental protection

收稿日期：2023-02-17; 定用日期：2023-04-11; DOI: 10.13550/j.jxhg.20230114
基金项目：四川省科技计划项目（2019YJ0514）
作者简介：刘向明（1996—），男，硕士生，E-mail：xiangmingliu09@163.com。联系人：邓小刚（1963—），男，副教授，E-mail：
905229278@qq.com。