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失活污泥腐殖酸制备及其改良尾矿试验研究
- 作者：
刘倍超|王海洋|于千傲|杨武
- 作者单位：
- （1. 东北师范大学环境学院；2. 长春黄金研究院有限公司；3. 吉林省长春生态环境监测中心）
基金项目：
- 吉林省科技厅创新平台（基地）和人才专项中青年科技创新创业卓越人才（团队）项目（20210509043RQ）
详细信息：
- 作者简介：
- 刘倍超（1995—），男，硕士研究生，研究方向为污泥资源化；E‑mail：liuchaolc@163. com
- 通讯作者：
- 杨武（1985—），男，副教授，研究方向为废水资源化及污泥资源化等；E‑mail：yangw104@nenu. edu. cn
- PDF下载
Experimental study on preparation of humic acid from inactivated sludge and its application in improving tailings
- English Author：
Liu Beichao¹, Wang Haiyang², Yu Qian’ao³, Yang Wu¹
- Unit：
- （1. School of Environment, Northeast Normal University; 2. Changchun Gold Research Institute Co., Ltd.; 3. Jilin Changchun Ecology and Environment Monitoring Center）
- 摘要
- 在线预览
- 参考文献
摘要:
失活污泥填埋或焚烧处理易产生二次污染，而其含有的腐殖酸可改善土壤理化性质。尾矿土壤改良及植被恢复是尾矿库生态修复的重要措施。研究开展了从失活污泥中提取腐殖酸，并利用腐殖酸进行尾矿土壤改良试验。结果表明：DN未消化提纯失活污泥腐殖酸更适合作为尾矿改良剂。腐殖酸显著增加了尾矿土壤中有机质含量，提高了土壤的肥力；1g/L失活污泥腐殖酸对植物生长有显著促进效果。该研究为尾矿土壤化利用提供了全新思路和理论基础，具有一定的环境效益和经济效益。
关键词:
失活污泥；腐殖酸；土壤改良；生态修复；尾矿土壤化；有机质
Abstract:
Landfilling or incinerating inactivated sludge can cause secondary pollution, while the humic acid it contains can improve the physicochemical properties of soil. Tailings soil improvement and vegetation restoration areimportant measures for the ecological restoration of tailings ponds. This study explores the extraction of humic acid from inactivated sludge and its application in tailings soil improvement experiments. The results show that humic acidfrom purified inactivated sludge that has not been digested in the DN wastewater treatment plant is more suitable as a tailings modifier. Humic acid significantly increases the organic matter content in tailings soil, enhancing its fertility;1 g/L of humic acid from inactivated sludge has a notable promoting effect on plant growth. This research provides anew approach and theoretical foundation for soil-based utilization of tailings, and offers certain environmental and economic benefits.
Keywords:
inactivatedsludge;humicacid;soilimprovement;ecologicalrestoration;soil‑basedutilizationoftailings; organic matter
