摘要
硫酸作为基础的危险化学品,应用领域涉及到国民经济的各个方面,同时也产生大量的废硫酸.我国每年废酸产生量超过1亿吨,其中超过7000万吨是废硫酸.随着工业用酸量增长,未来我国废硫酸产生量还将进一步增长.频发的废硫酸危险废物非法倾倒和掩埋事故已成为突发环境事件的重要诱因.废酸不仅污染环境、浪费硫资源,还会造成极大的安全隐患.我国又是硫资源的匮乏国,大量进口硫磺,提高废硫酸的资源化利用率具有重要意义.本工作综述了废硫酸产生的行业及产生废酸的特点,介绍了废硫酸处理的现状及常用的再生方法,对废硫酸的资源化利用、监管及未来的发展方向提出了建议,对硫酸使用、处置、管理有一定的借鉴作用.
Sulfuric acid as the basic hazardous chemicals is applied in various fields of the national economy.But in the meantime,a lot of waste sulfuric acid becomes the inevitable byproduct.According to the incomplete statistics,the annual discharge of used acid in China has exceeded 100 million tons,of which more than 70 million tons were waste sulfuric acid.Along with the increase of industrial acid,the amount of used sulfuric acid will grow in the future.Especially,the frequent accidents of illegal dumping and burying of waste sulfuric acid have become an important cause leading to environmental emergencies.Large amount of spent sulfuric acid not only means the waste of resources but also results in tremendous potential hazard of safety and environment.Nevertheless,China is deficient in sulfur resources and imports a lot of sulfur,so it is of great significance to promote and improve the comprehensive utilization of waste sulfuric acid.This paper summarizes the applied industries of sulfuric acid and the characteristics of waste acid.And it introduces the current treatment situation and regeneration methods of waste sulfuric acid.This paper puts forward some comments on the resources utilization,supervision and future development trend of waste sulfuric acid.It is hoped to play a certain reference value of application,disposal and management of sulfuric acid.
出处
《过程工程学报》
CAS
CSCD
北大核心
2018年第S1期24-34,共11页
The Chinese Journal of Process Engineering
关键词
废硫酸
污染
处置
综合利用
spent sulfuric acid
pollution
disposal
comprehensive utilization
