SD >> Vol. 6 No. 3 (July 2016)
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強(qiáng)化污泥厭氧消化性能的預(yù)處理技術(shù)研究進(jìn)展
Progress in the Pretreatment of Sludge Anaerobic Digestion
作者:
王 非:上海市城市排水有限公司,上海關(guān)鍵詞:
污泥;厭氧消化;預(yù)處理技術(shù);產(chǎn)甲烷;Sludge; Anaerobic Digestion; Pretreatment Methods; Methane Production
With the increase of wastewater treatment capacity of wastewater treatment plant in China, the production of excess sludge is increasing day by day, leading to the difficulty in treatment and disposal. The sludge must be stabilized before final disposal because of its high moisture content and rich in organic matter and pathogens. Anaerobic digestion is a common technology for sludge stabilization, especially for large and medium sized wastewater treatment plants, and can be used for production of methane to achieve energy recovery. However, because of the presence of the cell wall, the hydrolysis of sludge is key limited step of anaerobic digestion rate. The pretreatment technologies of sludge can effectively enhance the damage of the cell wall, promoting the intracel-lular organic matter releasing into aqueous phase, improving the sludge anaerobic digestion per-formance. The advantages and disadvantages of various pretreatment technologies of sludge an-aerobic digestion were reviewed in this study, including biological treatment, thermal hydrolysis, mechanical treatment, chemical oxidation treatment and alkali treatment. At present, the research focuses on the characteristics of the sludge after pretreatment and the improvement of methane production.
文章引用:
王非. 強(qiáng)化污泥厭氧消化性能的預(yù)處理技術(shù)研究進(jìn)展[J]. 可持續(xù)發(fā)展, 2016, 6(3): 129-137. http://dx.doi.org/10.12677/SD.2016.63017
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