摘要
采用天然锰砂滤料接触氧化法对去除工业冷却水中锰、铁的工艺条件进行了研究。滤料粒径０５ｍｍ～１０ｍｍ，滤床高８００ｍｍ，滤速１０ｍ／ｈ～１２ｍ／ｈ，工作周期９６ｈ，反冲洗强度１３Ｌ／ｍ２·ｓ，反冲洗时间５ｍｉｎ～７ｍｉｎ。出水Ｍｎ２＋浓度达００４ｍｇ／Ｌ以下。锰去除率８０％以上，总铁浓度可达检验不出的水平。
The research on the process
conditions of removing manganese and ferrum pollution from industrial cooling water by the
contact oxidation using the natural manganese sand filtering material is conducted.The particle
size of the filtering material is 0.51.0mm and the height of the filtering bed is 8mm;the filtering
speed,the working cycle,the back washing strength and back washing time are
1012m/h,96hrs,13L/m\+2 and 57min respectively.Mn\+\{2+\} concentration of the effluent is less
than 0.04mg/L.The removal rate is up to over 80% and the overall Fe concentration is in such a
low level that is not detectable.
出处
《环境工程》
CAS
CSCD
北大核心
1999年第1期20-22,共3页
Environmental Engineering
关键词
锰砂滤料
工业冷却水
锰
铁
废水处理
manganese sand filtering material, industrial cooling
water, manganese and ferrum
