利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN105295931A 一种凹凸棒基土壤重金属修复剂 无效 - 驳回

一种凹凸棒基土壤重金属修复剂
摘要：
本发明属于环境污染治理技术领域，具体涉及利用凹凸棒制备重金属污染土壤的修复剂。一种凹凸棒基土壤重金属修复剂经过原矿破碎、酸化处理、晾晒筛分、焙烤和土壤重金属修复等多个步骤制得。本发明经过酸化和热改性凹凸棒基土壤重金属污染修复剂，凹凸棒石黏土经过硫酸酸化处理，具有比表面积大、孔隙率高的特点，其活性和吸附性能都得到了较大的提高，能够有效降低土壤中可溶态重金属的比例，达到钝化土壤重金属效果，修复土壤重金属污染。
摘要（英）：

The invention belongs to the technical field of environment pollution treatment, and more specifically relates to a heavy metal-polluted soil repairing agent prepared by attapulgite. The attapulgite-based soil heavy metal repairing agent is obtained by steps of raw ore fragmentation, acidifying treatment, airing screening, roasting and soil heavy metal restoration. According to the attapulgite-based soil heavy metal repairing agent through acidifying and heat modification, attapulgite clay has characteristics of large specific surface area and high porosity amount due to sulfuric acid acidifying treatment of the attapulgite clay, activity and adsorptivity are increased, proportion of soluble heavy metals in the soil can be effectively reduced, soil heavy metal passivation effect can be reached, and soil heavy metal pollution can be remediated.

0/0