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在我国的地下水除铁工艺中,多采用接触氧化法过滤除铁。据有关单位调查,目前我国有20％的地下水除铁装置采用天然锰砂过滤。随着地下水的大量开采,对天然锰砂的所求量日趋增加,加上有的用户又离产地较远,愈来愈显得不能满足生产发展的需要。因此,接触氧化法除铁的滤料选择问题,正成为地下水除铁生产发展中急待解决的问题。下面,我们拟围绕除铁滤料的选择,探讨一下滤料对地下水除铁的作用。一、天然锰砂本身对亚铁离子的氧化有
In China’s groundwater iron removal process, the contact oxidation method is used to remove iron. According to investigations by relevant agencies, at present, 20% of China’s groundwater iron removal installations use natural manganese sand filtration. With the massive exploitation of groundwater, the demand for natural manganese sand is increasing day by day, and some users are further away from the origin, and more and more seem to be unable to meet the needs of production and development. Therefore, the choice of the filter material for contact oxidation in addition to iron is becoming an urgent problem to be solved in the development of groundwater iron removal. Below, we intend to explore the role of filter media in removing iron from groundwater around the choice of iron removal media. First, natural manganese sand itself has oxidation of ferrous ions