改性凹凸棒土结合PAM处理含镍离子废水的研究
摘要:本文主要在于研究热活化结合微波改性凹凸棒土对水溶液中镍离子的吸附性能与条件,以及凹凸棒土悬浮液的絮凝沉降条件,将吸附和絮凝这两个过程结合起来形成吸附-絮凝处理污水的新工艺,为凹凸棒土在废水处理,特别是重金属废水处理的进一步利用提供理论依据和工艺参数。同时,由于单纯的凹凸棒土处理重金属离子废水固-液分离困难,去除效率不高,因此采用微波改性凹凸棒土结合聚丙烯酰胺(PAM)的吸附-絮凝工艺来避免该缺点。在合成有机高分子絮凝剂中聚丙烯酰胺(PAM)的应用是最多的。
关键字:凹凸棒土,PAM ,处理, 含镍离子
Abstract: this paper mainly lies in the study with hot activation microwave modification of attapulgite in aqueous solution of nickel ions adsorption performance and conditions, as well as attapulgite suspending liquid flocculating sedimentation condition, the adsorption and flocculation the two process combined form the adsorption-flocculation of sewage treatment new technology, for attapulgite in wastewater treatment, especially heavy metal waste water treatment of further use to provide the theory basis and the process parameters. At the same time, because of the simple attapulgite deal with heavy metal ions wastewater solid-liquid separation difficulties, remove the efficiency is not high, so the method combined with microwave modification attapulgite polyacrylamide (PAM) adsorption-flocculation process to avoid the disadvantages. In the synthesis of organic polymer flocculant polyacrylamide (PAM) in the application is the most.
Key word: attapulgite, PAM, processing, including nickel ions
绪论:
随着社会的发展,镍越来越多的应用到社会的各个领域,镍及其氧化物的良好化学物理特性,使得镍工业飞速发展,获得了许多高性能,高经济效益的含镍器件。随之带来的就是含镍废水对环境的严重污染和镍资源的大量浪费,同时随着电子行业的发展,废镍铁合金磁性材料越来越多,也是目前急需解决的一个环保课题。同时,含镍废水也越来越多,且有相当部分以废水的形式放掉,既浪费了资源,又严重污染了环境。怎样处理和综合利用这些废水,也是目前急需解决的一个环保课题。
http:///
一、 课题的研究内容
因为凹凸棒土原土的去除能力有限,所以现在有很多关于凹凸棒土的改性研
bbs.99jianzhu.com内容:建筑图纸、PDF/word 流程,表格,案例,最新,施工方案、工程书籍、建筑论文、合同表格、标准规范、CAD图纸等内容。