新疆环境保护2024，Vol.46Issue(4)：16-23,8.
核桃壳活性炭对水中硝态氮的吸附特征研究
Adsorption Characteristics of Walnut Shell Activated Carbon to Nitrate Nitrogen in Water
吴洁1
作者信息
- 1. 新疆维吾尔自治区塔城水文勘测中心,新疆 塔城市 834700
- 折叠
摘要
Abstract
Walnut shell was used as raw material to prepare activated carbon adsorption material,which was applied to the adsorption treatment of nitrate nitrogen in wastewater.By optimizing the adsorption conditions for nitrate nitrogen using walnut shell activated carbon,the adsorption behavior of nitrate nitrogen in simulated wastewater using walnut shell activated carbon was evaluated by isothermal adsorption model and adsorption kinetic model.The results showed that the optimum adsorption conditions of walnut shell activated carbon were particle size of 100 mesh,a dosage of 2 g/100 mL,and adsorption at pH=7 and 35 ℃ for 8 h.This condition achieved the highest removal rate of nitrate nitrogen in simulated wastewater,reaching 77.2％.The evaluation results of isothermal adsorption model and adsorption kinetics model showed that the adsorption process of walnut shell activated carbon was a mono-molecular layer adsorption,mainly chemical adsorption.The research results could provide a new scientific basis for the preparation of high-performance adsorption materials from agricultural and forestry wastes and their application in wastewater treatment processes.关键词
核桃壳活性炭/硝态氮/吸附行为/工业废水Key words
walnut shell activated carbon/nitrate nitrogen/adsorption behaviour/industrial wastewater分类
化学化工引用本文复制引用
吴洁..核桃壳活性炭对水中硝态氮的吸附特征研究[J].新疆环境保护,2024,46(4):16-23,8.
