云南化工2024，Vol.51Issue(4)：82-84,3.DOI:10.3969/j.issn.1004-275X.2024.04.18
氢氟酸废液协同含铅飞灰无害化处理研究
Experimental Study on Harmless Treatment of Lead Containing Fly Ash with Hydrofluoric Acid
钟琦 1李行德 2张千帆 3任雪娇2
作者信息
- 1. 云南大地丰源环保有限公司,云南 昆明 650401||云南大地绿坤环保科技有限公司,云南 昆明 650401
- 2. 云南大地绿坤环保科技有限公司,云南 昆明 650401
- 3. 云南大地丰源环保有限公司,云南 昆明 650401
- 折叠
摘要
Abstract
In order to make alkaline lead-containing fly ash reach the landfill limit of hazardous waste,hydrofluoric acid was used as stabilizer for lead-containing fly ash.After finding out the optimal dosage of hydrofluoric acid,lime is used as pH regulator,cement as curing agent,it can make the leaching toxicity of total lead and inorganic fluoride was lower than the requirements of"Hazardous Waste Landfill Pollution Control Standard"(GB19598-2019).The result shows that the addition of hydrofluoric acid is 10％(wt/％),the addition of lime is 4％(wt/％)to adjust the pH between 7.10-7.15,and the stabilization effect is significant,the optimal results were pH=7.15,total lead=0.145mg/L,inor-ganic fluoride=3.7 mg/L.关键词
含铅飞灰/氢氟酸/石灰/浸出毒性Key words
Lead Fly Ash/Hydrofluoric Acid/Lime/Leaching Toxicity分类
资源环境引用本文复制引用
钟琦,李行德,张千帆,任雪娇..氢氟酸废液协同含铅飞灰无害化处理研究[J].云南化工,2024,51(4):82-84,3.
