https://scholars.lib.ntu.edu.tw/handle/123456789/407724
標題: | Calcium precipitate induced aerobic granulation | 作者: | Wan C. Lee D.-J. Yang X. Wang Y. Wang X. Liu X. |
關鍵字: | Aerobic granules;Calcium precipitate;Exopolysaccharides;Phosphate | 公開日期: | 2015 | 卷: | 176 | 起(迄)頁: | 32-37 | 來源出版物: | Bioresource Technology | 摘要: | Aerobic granulation is a novel biotechnology for wastewater treatment. This study refined existing aerobic granulation mechanisms as a sequencing process including formation of calcium precipitate under alkaline pH to form inorganic cores, followed by bacterial attachment and growth on these cores to form the exopolysaccharide matrix. Mature granules comprised an inner core and a matrix layer and a rim layer with enriched microbial strains. The inorganic core was a mix of different crystals of calcium and phosphates. Functional strains including Sphingomonas sp., Paracoccus sp. Sinorhizobium americanum strain and Flavobacterium sp. attached onto the cores. These functional strains promote c-di-GMP production and the expression by Psl and Alg genes for exopolysaccharide production to enhance formation of mature granules. ? 2014 Elsevier Ltd. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407724 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2014.11.008 |
顯示於: | 化學工程學系 |
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