爆破器材Issue(2)：53-56,4.DOI:10.3969/j.issn.1001-8352.2014.02.012
GTG起爆药生产中含镉废水处理工艺研究
Research on the Treatment Method of Cadmium Wastewater in the Production of GTG Primary Explosive
陈姗姗 1陈文基 1周桂松 1杜华善 1徐秀焕1
作者信息
- 1. 葛洲坝易普力股份有限公司 重庆 401122
- 折叠
摘要
Abstract
A new method for wastewater treatment was introduced, which was mainly used for the treatment of wastewater containing cadmium in the production of GTG primary explosive. Neutralization precipitation method and sulfide precipitation method was combined in the new method. Sodium hydroxide,which was used as a precipitating agent, com-bined with the cadmium ions in wastewater and generated hydrogen cadmium oxide precipitation. Wastewater after primary treatment passed the antiacid,antialkali and anticorrosion filter-bags with the pore diameter of about 25μm,and entered the secondary sedimentation tank after stepwise settlement. Sodium sulfide was used to conduct a second precipitate and the filtering device was setted in the outlet of the secondary sedimentation tank. All of these made the wastewater containing cadmium in the production of GTG primary explosive reach total cadmium content requirements of GB 8978-1996 “standard of sewage comprehensive discharge” and meet the tertiary industrial wastewater discharge standard. A feasible scheme for recycling use of primary sediment was also proposed. By the composition analysis of primary sediment,charge ratio of GTG primary explosive and combined process, it indicates that primary sediment can be recycled and reused. This method can effectively remove the heavy metal cadmium in wastewater of GTG primary explosive. Based on recycling and utilization of primary sediment,it also reduces production costs of the GTG primary explosive, and meets the requirement of industrial production and safe environmental protection.关键词
GTG起爆药/含镉废水/沉渣/废水处理Key words
GTG primary explosive/wastewater containing cadmium/sediment/wastewater treatment分类
资源环境引用本文复制引用
陈姗姗,陈文基,周桂松,杜华善,徐秀焕..GTG起爆药生产中含镉废水处理工艺研究[J].爆破器材,2014,(2):53-56,4.
