新型钙/铝/镧吸附材料对含氟污水的处理效果研究
Study on the Treatment Effect of New Calcium/Aluminum/Lanthanum Adsorption Materials on Fluorinated Wastewater
利德铭1
作者信息
- 1. 河源市市区城南污水处理厂,广东 河源 517000
- 折叠
摘要
采用共沉淀法制备了新型钙/铝/镧吸附材料,研究了吸附材料的制备工艺以及吸附条件对含氟污水的处理效果.结果表明:在吸附材料制备过程中,钙/铝/镧的配比以及制备溶液的pH值对氟离子吸附量具有明显影响,当钙、铝、镧的摩尔比为1∶3∶2、制备溶液的pH值为8～9时,吸附材料对氟离子的吸附量大于200 mg/g;在对氟离子初始质量浓度为10 mg/L的含氟污水进行处理时,在初始pH值不变的条件下,最佳的吸附剂投加量为1.8 g/L,吸附平衡时间为150 min,对pH值为2～9的含氟污水的吸附效果较好,出水氟离子的质量浓度均小于1 mg/L.
Abstract
A new type of calcium/aluminum/lanthanum adsorption material was prepared by co precipitation method.The preparation process of the adsorption material and the effect of adsorption conditions on the treatment of fluorine-containing wastewater were studied.The results showed that the ratio of calcium/aluminum/lanthanum and the pH value of the prepared solution had a significant impact on the adsorption capacity of fluoride ions during the preparation of adsorbent materials.When the molar ratios of calcium,aluminum,and lanthanum were 1:3:2 and the pH value of the prepared solution was between 8～9,the adsorption capacity of fluoride ions by the adsorbent material was greater than 200 mg/g.When treating fluorine-containing wastewater with an initial concentration of 10 mg/L of fluoride ions,under the condition that the initial pH value remains unchanged,the optimal adsorbent dosage is 1.8 g/L,and the adsorption equilibrium time is 150 minutes.It has an efficient adsorption effect on fluorine-containing wastewater with pH values ranging from 2 to 9,and the concentration of fluoride ions in the effluent is less than 1mg/L.
关键词
钙/铝/镧材料/含氟污水/吸附处理Key words
calcium/aluminum/lanthanum materials/fluorinated wastewater/adsorption treatment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据