CN104043408B - 一种去除工业废水中铜离子的吸附材料制备方法 - Google Patents

一种去除工业废水中铜离子的吸附材料制备方法 Download PDF

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CN104043408B
CN104043408B CN201410298951.1A CN201410298951A CN104043408B CN 104043408 B CN104043408 B CN 104043408B CN 201410298951 A CN201410298951 A CN 201410298951A CN 104043408 B CN104043408 B CN 104043408B
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CN104043408A (zh
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雷春生
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Xiangshui Huaqing Sewage Treatment Co.,Ltd.
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Changzhou University
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Abstract

本发明涉及一种去除工业废水中铜离子的吸附材料制备方法,属于污水处理领域。挑选无腐烂核桃,去瓤留壳,放入10L密闭容器中,加入去离子水,以去离子水全部浸泡核桃壳为宜,再加入氯化铵,同时加热水温,添加硫代硫酸钠,密封,保温;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;在超声波作用下洗涤,去除残留物质,放入氯化锌溶液中浸泡后在温度为105℃下烘干;通入氮气,继续升温至900℃下碳化;捣碎,过筛,得到吸附颗粒。本发明通过添加硫代硫酸钠对其改性,改变其表面吸附性能,增强了核桃壳的吸附能力,成本低廉,方法新颖且吸附率高达95%以上。

Description

一种去除工业废水中铜离子的吸附材料制备方法
技术领域
本发明涉及一种去除工业废水中重金属离子的吸附材料制备方法,具体涉及到工业废水中铜离子的去除,属于污水处理领域。
背景技术
重金属不能生物降解,是一种永久性污染物,在生物体内大量累积后通过食物链进入人体,严重危害人类健康。重金属污染以及成为世界,面临的主要环境问题。重金属是对生态环境危害极大的一类污染物,废水中的重金属铜离子经过水生食物链的富集,最终由水产品进入人体,会给人类带来严重的毒害影响。含铜废水主要来源于工业生产过程,如不经过适当处理排入环境,将给环境带来极大危害。
传统含铜废水的主要处理方法有化学沉淀法、置换法、电解法等。化学沉淀法不足之处在于产生含重金属污泥,若污泥没有得到妥善的处理还会产生二次污染,置换法中所得沉淀中杂质分离困难,污泥量多。
发明内容
本发明针对传统的含铜污水处理方法需要消耗大量的药剂、污泥量多、容易产生二次污染等问题,提出了一种利用生物质为载体,在其表面加载能与铜离子发生化学络合的含氨物质,其关键在于含氨物质是如何加载在核桃壳表面,并能起到去除工业废水中铜离子的吸附材料制备方法。
为达到上述目的,本发明采取的具体技术方案是:
1、一种去除工业废水中铜离子的吸附材料制备方法,其特征在于:
(1)挑选无腐烂核桃50~100颗,去瓤留壳,放入10L密闭容器中,加入3~5L去离子水,以去离子水全部浸泡核桃壳为宜,再加入2~3mg氯化铵,同时加热水温至65℃~75℃,添加3~5g硫代硫酸钠,密封,保温3~5小时;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;
(2)在超声波作用下洗涤5~10分钟,去除残留物质,放入质量浓度为0.2~0.3%的氯化锌溶液中浸泡2~3小时后在温度为105℃下烘干;
(3)通入氮气,继续升温至900℃下碳化;
(4)捣碎,过筛,得到100~120目颗粒。
创新点:
(1)废物综合利用,以废治废,变废为宝,实现环境与经济的双赢!。
(2)本发明通过添加硫代硫酸钠对其改性,改变其表面吸附性能,增强核桃壳的吸附能力,吸附率高达95%,吸附后的水达到国家一级排放标准,可直接排放。
具体实施方式
挑选无腐烂核桃50~100颗,去瓤留壳,放入10L密闭容器中,加入3~5L去离子水,以去离子水全部浸泡核桃壳为宜,再加入2~3mg氯化铵,同时加热水温至65℃~75℃,添加3~5g硫代硫酸钠,密封,保温3~5小时;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;在超声波作用下洗涤5~10分钟,去除残留物质,放入质量浓度为0.2~0.3%的氯化锌溶液中浸泡2~3小时后在温度为105℃下烘干;通入氮气,继续升温至900℃下碳化;捣碎,过筛,得到100~120目颗粒。将该吸附材料放入体积为500ml浓度为50~200mg/L含有铜离子的工业废水中,pH值在6.0的情况下,吸附2小时,出水即可排放。
实例1
挑选无腐烂核桃50颗,去瓤留壳,放入10L密闭容器中,加入3L去离子水,以去离子水全部浸泡核桃壳为宜,再加入2mg氯化铵,同时加热水温至65℃,添加3g硫代硫酸钠,密封,保温3小时;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;在超声波作用下洗涤5分钟,去除残留物质,放入质量浓度为0.2%的氯化锌溶液中浸泡2小时后在温度为105℃下烘干;通入氮气,继续升温至900℃下碳化;捣碎,过筛,得到100目颗粒。将该吸附材料放入体积为50L浓度为50mg/L含有铜离子的工业废水中,pH值在6.0的情况下,吸附2小时,铜离子去除率为85%以上。
实例2
挑选无腐烂核桃75颗,去瓤留壳,放入10L密闭容器中,加入4L去离子水,以去离子水全部浸泡核桃壳为宜,再加入2.5mg氯化铵,同时加热水温至70℃,添加4g硫代硫酸钠,密封,保温4小时;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;在超声波作用下洗涤7分钟,去除残留物质,放入质量浓度为0.25%的氯化锌溶液中浸泡2.5小时后在温度为105℃下烘干;通入氮气,继续升温至900℃下碳化;捣碎,过筛,得到110目颗粒。将该吸附材料放入体积为50L浓度为100mg/L含有铜离子的工业废水中,pH值在6.5的情况下,吸附3小时,铜离子去除率为90%以上。
实例3
挑选无腐烂核桃100颗,去瓤留壳,放入10L密闭容器中,加入5L去离子水,以去离子水全部浸泡核桃壳为宜,再加入3mg氯化铵,同时加热水温至75℃,添加5g硫代硫酸钠,密封,保温5小时;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;在超声波作用下洗涤10分钟,去除残留物质,放入质量浓度为0.3%的氯化锌溶液中浸泡3小时后在温度为105℃下烘干;通入氮气,继续升温至900℃下碳化;捣碎,过筛,得到120目颗粒。将该吸附材料放入体积为50l浓度为200mg/L含有铜离子的工业废水中,pH值在7.0的情况下,吸附4小时,铜离子去除率为95%以上。

Claims (1)

1.一种去除工业废水中铜离子的吸附材料制备方法,其特征在于:
(1)挑选无腐烂核桃50~100颗,去瓤留壳,放入10L密闭容器中,加入3~5L去离子水,以去离子水全部浸泡核桃壳,再加入2~3mg氯化铵,同时加热水温至65℃~75℃,添加3~5g硫代硫酸钠,密封,保温3~5小时;煮沸60分钟,除去残余的核桃壳及果皮,105℃下烘干后破碎过0.5mm筛;
(2)在超声波作用下洗涤5~10分钟,去除残留物质,放入质量浓度为0.2~0.3%的氯化锌溶液中浸泡2~3小时后在温度为105℃下烘干;
(3)通入氮气,继续升温至900℃下碳化;
(4)捣碎,过筛,得到100~120目颗粒。
CN201410298951.1A 2014-06-26 2014-06-26 一种去除工业废水中铜离子的吸附材料制备方法 Active CN104043408B (zh)

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