Dynamic adsorption of As(V) by hydroxyapatite/bagasse biomass carbon composite adsorbent

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Yan, Liling^1 ; Liang, Meina^1^2^3 ; Wang, Dunqiu^1^2^3 ; Zhang, Lihao^1^2 ; Zhu, Zongqiang^1^2^3 ; Huang, Daolin^1

College of Environmental Science and Engineering, Guilin University of Technology, Guilin

541004, China^1

Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, China^2

Collab. Innovation Center for Water Pollution Control and Water Safety in Karst Region of Guangxi, Guilin

541004, China^3

关键词: Carbon composites;    Dynamic adsorption;    Exhaustion time;    High adsorption capacity;    Hydrothermal precipitation;    Influent flow rate;    Solution pH;    Sugar-cane bagasse;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/3/032037/pdf
DOI  :  10.1088/1757-899X/490/3/032037

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Hydroxyapatite/bagasse biomass carbon composite adsorbent (HAP-BC) was prepared by hydrothermal precipitation one-step carbonization heating chemical modification method with sugarcane bagasse as main raw material. The effects of initial As(V) concentration, solution pH, bed height and influent flow rate on the penetration curve of HAP-BC adsorption As(V) were discussed. The influence on regeneration and recycling of HAP-BC were analyzed in this paper. The results shown that with increasing initial As(V) concentration, pH and influent flow rate, the break through time and exhaustion time were shorten, but the break through time and the exhaustion time would be prolonged with increasing bed height. Moreover The regenerated adsorbent still maintained a high adsorption capacity for As(V).