改性高岭土处理磷酸盐废水的研究

2011 International Conference on Electric Technology and Civil Engineering (ICETCE) Pub Date : 2011-04-22 DOI:10.1109/ICETCE.2011.5774536

Zhai Youtao, W. Feng

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引用次数: 0

摘要

用盐酸和煅烧法对高岭土进行了改性，并对改性高岭土对磷酸盐的吸附进行了研究。结果表明，改性后的高岭土对磷酸盐的吸附能力大大提高。P浓度为20 mg/L时，改性高岭土的消耗量为2%(重量比)，盐酸改性高岭土的吸附量为0.82mg/g，加热改性高岭土的吸附量为1.98mg/g。P在水中的残留浓度分别为3.63mg/L和0.12mg/L。随着盐酸用量的增加，对磷的去除率提高。加热改性的最佳温度为500-600℃。吸附特性可用Langmuir方程描述。

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Study on the treatment of phosphate wastewater with modified Kaolin

Kaolin has been modified with hydrochloric acid and calcination, and given a study on the adsorption of phosphate by modified Kaolin. The Results show that phosphate adsorption capacities of modified Kaolin were raised enormously. When P concentration is 20 mg/L, consumption of modified Kaolin is 2%(weight ratio), Amounts of adsorption of Kaolin modified with hydrochloric acid and modified with heating are 0.82mg/g and 1.98mg/g, respectively. Remainder concentration of P in water are 3.63mg/L and 0.12mg/L, respectively. Rate of removing of P were raised with amount of hydrochloric acid increase. Optimum temperature of heating modification is 500–600°C. Adsorption characteristics can be described with Langmuir equation.

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来源期刊

2011 International Conference on Electric Technology and Civil Engineering (ICETCE)

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