摘要
在铬污染土壤中加入活性污泥,并种植万寿菊,进行植物和微生物联合修复重金属铬污染土壤的实验。实验表明:添加污泥增加了铬污染土壤中微生物的丰度,同时降低了六价铬的含量,并且土壤中六价铬的含量随着活性污泥比例的增加而下降,说明微生物对土壤修复起到了积极的作用。土壤中铬的含量一定程度上会影响植物的生长,但微生物对重金属的的转化作用,使植物的耐受性增加,促进了植物对土壤中铬的吸收,提高了对污染土壤的修复能力。植物生长过程中对土壤中的铬进行了富集,万寿菊对铬的转运能力随着土壤中的铬浓度增加而增加。
To research the remediation of heavy metal chromium contaminated soil by plants and microorganisms,marigold was planted in the chromium contaminated soil added sludge.The results showed that the addition of sludge increased the abundance of microorganisms in chromium contaminated soil,and decreased the content of hexavalent chromium.With the increase of sludge proportion,the concentration of hexavalent chromium in soil decreased,that indicating microorganisms played a positive role in soil remediation.The content of chromium in soil would affect the growth of plants to some extent,but the transformation of heavy metals by microorganisms would increase the tolerance of plants and promote the absorption of chromium in soil by plants,the remediation capacity of contaminated soil was improved.The plant enriched the chromium during growth,and the chromium transporting capacity of marigold increased with the increase of chromium concentration in soil.
作者
逯延军
邹佳敏
舒同
王娜娜
张甲麒
张格红
刘广东
LU Yan-jun;ZOU Jia-min;SHU Tong;WANG Na-na;ZHANG Jia-qi;ZHANG Ge-hong;LIU Guang-dong(School of Civil&Architecture Engineering,Xi’an Technological University,Xi’an 710021,China;China Green Development Investment Group Co.,Ltd.(LuNeng Group Co.,Ltd.),Beijing 100020,China)
出处
《应用化工》
CAS
CSCD
北大核心
2023年第6期1770-1772,共3页
Applied Chemical Industry
基金
西安工业大学2021年国家级大学生创新创业训练计划项目(202110702043)
陕西省科技厅项目(2021JM424)
旱区地下水文与生态效应教育部重点实验室开放基金项目(300102292505)
基于绿色环保、智慧科技的城镇老旧小区旧改技术研究项目(SGLN0000KXJS2000118)。
关键词
土壤
铬污染
植物-微生物联合修复
soil
chromium contaminated
plant-microorganism combined remediation
