Porous honeycomb cork biochar for efficient and highly selective removal of phosphorus from wastewater  

作　　者：Xiuxiu Jia Tao Yin Yin Wang Shuxing Zhou Xue Zhao Wentong Chen Guangzhi Hu 

机构地区：[1]Institute for Ecological Research and Pollution Control of Plateau Lakes,School of Ecology and Environmental Science,Yunnan University,Kunming 650504,China [2]Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices,Hubei University of Arts and Science,Xiangyang 441053,China [3]Faculty of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming 650092,China [4]Key Laboratory of Coordination Chemistry of Jiangxi Province,School of Chemistry and Chemical Engineering,Jinggangshan University,Ji’an 343009,China

出　　处：《Biochar》2023年第1期1442-1455,共14页生物炭（英文）

基　　金：National Key R&D Program of China(2019YFC1804400);Special Project for Social Development of Yunnan Province(202103AC100001);Double-First Class University Plan(C176220100042);Postgraduate Research and Innovation Foundation of Yunnan University(KC-23234662);Scientific Research Fund Project of Yunnan Provincial Department of Education(2023Y0210).

摘　　要：In this study,an adsorbent(LCB)with rich honeycomb structure was prepared from cork waste generated from furniture factories for efficient adsorption of excess phosphorus(P)from wastewater.This adsorbent was successfully prepared in only one step,in situ precipitation method,which greatly simplified the synthesis process.Kinetic studies showed that when the initial concentration(C_(0))of wastewater was 10 mg P L^(−1),the P in the water could be completely adsorbed within 20 min.The adsorption efficiency of phosphorus was significantly improved compared to previous studies.When the C_(0) of pollutant and the dosage of LCB were 20 mg P L^(−1) and 0.5 g L^(−1),respectively,the removal rate of P exceeded 99%in the pH range of 3-10,which indicates the wide applicability of LCB.In addition,the P adsorption capacity of LCB was 82.4%of its initial value after nine adsorption-desorption cycles,indicating that LCB has a high stability and can be widely used in different water environments.Therefore,LCB is a promising material for the treatment of P-containing wastewater.

关 键 词：Cork biochar Phosphorus removal LCB Adsorption Wastewater treatment 

分 类 号：X703[环境科学与工程—环境工程]