School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China.
China Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
Environ Sci Pollut Res Int. 2016 Jun;23(11):11193-11208. doi: 10.1007/s11356-016-6243-y. Epub 2016 Feb 27.
Red mud storage facility (RM-SF) pollution remains a serious problem in China mainly due to the RM's huge quantity, little recyclability, and high alkalinity. And, there is also a risk of dam failure because almost all RM-SFs are processed by damming. In order to address this challenge and improve the level of risk management, it is necessary to evaluate the environmental risk of RM-SFs systematically. So, this paper firstly designs a comprehensive evaluation index system with a three-level evaluation index in the terms of RM characteristics, RM-SF characteristics, ambient environment of RM-SF, the management of RM-SF, and the application aspect of RM by the analytic hierarchy process (AHP) method. Then, a case of RM-SF from a typical alumina production enterprise is studied according to this system, as is assisted by several experts from different fields when determining the weights of all indicators. The results show that the risk of selected RM-SF primarily depends on the former factors, that is, RM and RM-SF characteristics, while the contributions of the other factors are quite smaller.
赤泥储存设施（RM-SF）污染在中国仍是一个严重的问题，主要是由于 RM 的数量巨大、可回收性差、堿度高。此外，由于几乎所有的 RM-SF 都是通过筑坝来处理的，因此还存在大坝溃坝的风险。为了解决这一挑战并提高风险管理水平，有必要系统地评估 RM-SF 的环境风险。因此，本文首先采用层次分析法（AHP）方法，从 RM 特性、RM-SF 特性、RM-SF 环境、RM-SF 管理和 RM 应用等方面设计了一个三级评价指标体系。然后，根据该系统对某典型氧化铝生产企业的 RM-SF 进行了案例研究，并在确定各指标权重时，由来自不同领域的几位专家协助。结果表明，所选 RM-SF 的风险主要取决于前几个因素，即 RM 和 RM-SF 特性，而其他因素的贡献则相当小。
