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A Research into the Reason Why the Manganese Removal Efficiency of the Biological Iron and Manganese Removal Filter Declines after Long-Time Operation

Author: ZengHuiPing
Tutor: ZhangJie；LiDong
School: Harbin Institute of Technology
Course: Municipal Engineering
Keywords: Biological Manganese Filter layer structure Mature filter Filter starts
CLC: TU991.24
Type: Master's thesis
Year: 2007
Downloads: 140
Quote: 1
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Abstract

Bio-solid manganese addition to manganese theory after nearly 20 years of research has been basically mature, troubled people for more than half a century and manganese removal problems have been a better solution. Practice test of good theory and in practice to be sublimated and improvement. In biological solid manganese except under the guidance of the theory of the manganese, from the first large scale Shenyang ZHANG Shi Zone Water after Ji Lin Dongfeng water plant, of Heilongjiang Lanxi water plant, Shenyang Hunnan Waterworks, Jinzhou Ling river plant, Jiamusi Jiangbei Water Plant, biological Manganese vigorous promotion applications, demonstrating great technical advantage, has won the praise of the engineering sector, but also some shortcomings, such as: water biological filter start relatively long period, spent a lot of time and human resources. In the application process have encountered a new problem: the earliest established and stable operation of the Shenyang ZHANG Shi Zone Water run four years later, at the end of 2005, there has been deterioration in water quality, in addition to the stability of the manganese technology has been questioned. In this paper, bio-solid manganese and manganese removal theory is based, rely on the water treatment plant filter test and column test, a more detailed study of possible causes of the many years of operation in addition to the reduced ability of manganese filter manganese removal, and biological manganese removal filter The pool initially Quick Start conducted a preliminary study. Studies have shown that: (1), the filter from the three main areas (ie, water quality, the natural conditions of the filter layer, and water plants the day-to-day running and maintenance operations) in addition to manganese ability to influence test, comprehensive analysis of: external natural changes in conditions (water quality) and human factors (water plants the day-to-day operation and maintenance operation) and manganese removal filter addition to manganese ability by microorganisms living body, in addition to manganese filter adaptive ability to leave in time to restore. But the filter inherent conditions change and manganese removal capacity of the filter a larger irreversible effects. Biological removal of iron and manganese filter after a long run, the inevitable happens filter particles and the filter layer structure of self-evolution, which is determined by the manganese removal mechanism. (2) by \microbial adaptation period under normal culture conditions can quickly enter the logarithmic growth phase, the filter layer mature relatively short time, soon effluent standards. Thanks to mature filter microorganisms not only micro-ecosystem stability and survival training environment and laboratory cultured strains compared to closer inoculation filter. This study analyzed the biological removal of iron and the reasons for the deterioration of water quality in the long-running manganese filter gives a simple and effective measures to deal with the prevention of deterioration of water quality has been established and stable operation of the biological addition to the Water Plant provides the reference biological theory of solid manganese and manganese removal is a perfect. And a new attempt to shorten the biological filter start cycle theory need to be resolved in addition to manganese, have greater significance in practical applications.

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CLC: > Industrial Technology > Building Science > Municipal Engineering > Water supply project ( on the Water Works ) > Clean Water ( water treatment ) > Filter
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