摘要
磷污染是富营养化污染的主要来源,农林秸秆的随地丢弃、就地焚烧造成了环境污染。为实现农林秸秆的综合利用和资源化处理含磷废水,本文主要在玉米秸秆生物质表面采用原位生长的方法合成ZIF-67,再在N_(2)气氛中500℃高温煅烧4h,制备成秸秆生物质炭/碳化ZIF-67(BC/碳化ZIF-67)复合材料用于水体中磷酸盐的吸附。探究了样品投加量、吸附时间、pH、初始浓度和温度对磷酸盐吸附的影响,得出在样品投加量为4g/L,吸附时间达到60min,pH为9,初始浓度为50mg/L和吸附温度为30℃,对磷酸盐的最大吸附量可达88.8mg/g。
Phosphorus pollution is the main source of eutrophication pollution,and the environmental pollution is caused by the dumping and burning of agricultural and forestry straws.In order to realize comprehensive utilization of agricultural and forestry straw and resource treatment of phosphorus-containing wastewater,this paper mainly synthesized ZIF-67 on the biomass surface of corn straw by in-situ growth method,and then calcined at 500℃in N_(2)atmosphere for 4 h to prepare straw biochar/carbonized ZIF-67 composite material for phosphate adsorption in water.The effects of sample dosage,adsorption time,pH,initial concentration and temperature on phosphate adsorption were investigated.It was concluded that the maximum phosphate adsorption capacity could reach 88.8 mg/g when sample dosage was 4 g/L,adsorption time was 60 min,pH was 9,initial concentration was 50 mg/L and adsorption temperature was 30℃.
作者
李佳利
陈兵兵
解鹤
晁婧
马有良
Li Jiali;Chen Bingbing;Xie He;Chao Jing;Ma Youliang(School of Science and Chemical Engineering,Ningxia Institute of Science and Technology,Ningxia,753000)
出处
《当代化工研究》
CAS
2023年第22期191-193,共3页
Modern Chemical Research
基金
宁夏回族自治区重点研发计划“秸秆生物质炭对富营养化污染的治理研究”(一般项目)(项目编号:2020BEG03013)
宁夏自然科学基金“二维MOF的构建及其机械响行为的研究”(项目编号:2022AAC03342)
宁夏自然科学基金“基于喷雾法COFs膜的制备及其催化性能研究”(项目编号:2022AAC03343)
宁夏自然科学基金“基于多重配位纳米纤维的DGT技术定量采集星海湖中多形态四环素类抗生素性能研究”(项目编号:2022AAC03340)。
