337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看
第 38 卷第 3 期Vol. 38 No. 3
2008 年 6 月Jun 2008

所屬欄目:安全與環(huán)保

減壓揮發(fā)法處理氨氮廢水研究
馬 姝1,唐鵬武2,歐陽(yáng)國強2,孫傳竹2 (1. 湖南化工研究院 國家農藥創(chuàng )制工程技術(shù)研究中心,湖南 長(cháng)沙 410007;2.湘潭大學(xué) 化工學(xué)院,湖南 湘潭 411105)
摘 要:研究了用減壓揮發(fā)法處理氨氮廢水的方法,考察了pH值、溫度、時(shí)間和真空度等因素對減壓揮發(fā)效率的影響。實(shí)驗結果表明:在pH=9、溫度為60℃、時(shí)間為60 min、真空度為0.07 Mpa的條件下,氨氮的去除率達到80%以上,有利于鉭鈮廢水處理新工藝的開(kāi)發(fā)。
關(guān)鍵詞:減壓揮發(fā);氨氮;鉭鈮廢水
中圖分類(lèi)號:X703  文獻標識碼:B  文章編號:1009-9212(2008)03- 0065-03
Research on Treatment of Ammonia Nitrogen Waste Water by Decompression-volatilization
MA Shu1,TANG Peng-wu1,OUYang Guo-qiang2,SUN Chuan-zhu2 (1. National Engineering Research Centre for Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410007,China;2. Chemical Engineering College,Xiangtan University,Xiangtan 411105,China)
Abstract:The treatment of ammonia nitrogen waste water by decompression-volatilization was investigated in this paper . The influence of factors such as pH,temperature,time and degree of vacuum) on the results was discussed. The result showed that under the condition of pH=9、temperature(60℃)、time(60 min)and degree of vacuum(0.07 MPa),the removal of ammonia nitrogen could reach more than 80%,which was heplful to development of tantalum-niobium new wastewater treatment technology.
Key words:ammoniacal nitrogen;decompression-volatilization;tantalum-niobium wastewater
作者簡(jiǎn)介:馬 姝(1973-),女,湖南長(cháng)沙人,主要從事化工工藝開(kāi)發(fā)研究、化工工程咨詢(xún)設計。
收稿日期: 2008-06-1
337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看