改性凹凸棒土对猪场粪污重金属铜的吸附研究
Study on the Adsorption of Heavy Metal Copper in Pig Manure by Modified Attapulgite Clay
商海军 1肖梦启 2王双凯 3张睿 3唐俊 4刘讯 4闫晓明2
作者信息
- 1. 安徽工商职业学院,安徽 合肥 231131;安徽省农业科学院棉花研究所,安徽 合肥 230031
- 2. 安徽省农业科学院棉花研究所,安徽 合肥 230031
- 3. 安徽省高策现代农业科技园有限责任公司,安徽 淮北 235047
- 4. 阜阳师范大学,安徽 阜阳 236037
- 折叠
摘要
以改性凹凸棒土为吸附剂,对养殖场粪污中的重金属铜进行吸附研究.试验研究了不同酸和浓度对凹凸棒土改性的影响,通过单因素和响应面法,探讨了吸附剂投加量、吸附时间、初始铜离子浓度和pH值等因素对吸附效果的影响.结果表明:4.0 mol/L盐酸改性的凹凸棒土对铜元素具有较强的吸附能力,最佳吸附条件为:温度25℃、投加量1.0 g、震荡时间40 min、pH值8.0,对重金属铜的吸附率最高达到60.21%.研究结果可为养殖场粪污中重金属铜的去除提供一种有效的吸附材料.
Abstract
Modified attapulgite was used as adsorbent to adsorb heavy metal copper from manure in livestock farms.The effects of different acids and concentrations on the modification of attapulgite were compared.The effects of adsorbent dosage,adsorption time,initial copper ion concentration and pH value on the adsorption were discussed by single factor and response surface method.The results showed that 4.0 mol/L hydrochloric acid modified attapulgite had strong adsorption capacity for copper elements.The op-timal adsorption conditions were:temperature of 25℃,dosage of 1.0 g,shaking time of 40 minutes,pH value of 8.0,and the highest adsorption rate for heavy metal copper reached 60.21%.This study provided an effective adsorbent material for the removal of heavy metal copper from manure in aquaculture farms.
关键词
改性凹凸棒土/猪场粪污/重金属/铜/吸附Key words
modified attapulgite/pig farm manure/heavy metals/copper/adsorb引用本文复制引用
出版年
2024
NETL
NSTL
万方数据