浙江化工
浙江化工
절강화공
ZHEJIANG CHEMICAL INDUSTRY
2012年
6期
35-37
,共3页
硫化染料%废水处理%亚硫酸钠%硫磺%绿色制备工艺
硫化染料%廢水處理%亞硫痠鈉%硫磺%綠色製備工藝
류화염료%폐수처리%아류산납%류광%록색제비공예
sulfur dye%waste water disposal%sodium sulfite%sulfur%green technology
研究了一种利用硫化染料废水制备硫磺和亚硫酸钠或焦亚硫酸钠的方法。含硫代硫酸钠的废水经脱色等一定处理后，加入硫酸发生化学反应，二氧化硫经碱吸收后可以生成亚硫酸钠、焦亚硫酸钠、亚硫酸氢钠等一系列二氧化硫衍生物，经析出过滤后得到硫磺。此工艺可有效地解决此类废水处理难的问题，有很大的经济效益和环境效益。
研究瞭一種利用硫化染料廢水製備硫磺和亞硫痠鈉或焦亞硫痠鈉的方法。含硫代硫痠鈉的廢水經脫色等一定處理後，加入硫痠髮生化學反應，二氧化硫經堿吸收後可以生成亞硫痠鈉、焦亞硫痠鈉、亞硫痠氫鈉等一繫列二氧化硫衍生物，經析齣過濾後得到硫磺。此工藝可有效地解決此類廢水處理難的問題，有很大的經濟效益和環境效益。
연구료일충이용류화염료폐수제비류광화아류산납혹초아류산납적방법。함류대류산납적폐수경탈색등일정처리후，가입류산발생화학반응，이양화류경감흡수후가이생성아류산납、초아류산납、아류산경납등일계렬이양화류연생물，경석출과려후득도류광。차공예가유효지해결차류폐수처리난적문제，유흔대적경제효익화배경효익。
This article was focused on the preparation of sulfur and sulfur dioxide derivatives with sulfur dye waste water. After the deeolorization and specific processing, the waste water containing sodium thiosulfate was acidified with sulfuric acid to ＇recycle sulfur dioxide and sulfur. The resulting sulfur dioxide can be further adsorbed by sodium hydroxide to obtain its derivatives such as sodium sulfite, sodium pyrosulfite, sodium bisulfite and so on. The sulfur was collected as solid by filtration. The technology can effectively dissolve the troublesome disposal problem of sulfur dye wastewater, exhibiting great economic efficiency and environment benefit.
