Study on adsorption of lead by biochar prepared from sludge of municipal wastewater treatment plant

3rd International Conference on New Material and Chemical Industry

材料科学;化学工业

Lei, W.^1^2 ; Li, T.T.^1^2 ; Lv, N.Q.^1^2 ; Liu, H.^1^2 ; Zhang, Y.^1^2 ; Xi, B.D.^1^2

State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing

100012, China^1

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing

100012, China^2

关键词: Adsorption capacities;    Adsorption effect;    Adsorption kinetics;    Bio chars;    Experimental conditions;    First order kinetic equations;    Municipal wastewater treatment plants;    Pyrolysis temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/479/1/012007/pdf
DOI  :  10.1088/1757-899X/479/1/012007

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In general, with the increase of pyrolysis temperature, the adsorption effect of the prepared biochar to Pb2+ is better.Under the same experimental conditions at 25°C, the adsorption capacity of biochar prepared by pyrolysis of sludge at 600°C was highest which was 611.8 mg/g. The adsorption kinetics of Pb2+ in solution by BC600 is better fitted to the first order kinetic equation. With the increase of pH value of solution, the adsorption capacity of lead increased from 441.3 mg/g to 650.6 mg/g.