序批式生物反应器中好氧颗粒污泥处理屠宰废水的性能。
Performance of aerobic granular sludge in a sequencing batch bioreactor for slaughterhouse wastewater treatment.
机构信息
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China; School of Civil Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
出版信息
Bioresour Technol. 2015 Aug;190:487-91. doi: 10.1016/j.biortech.2015.03.008. Epub 2015 Mar 6.
Lab-scale experiment was conducted to investigate the formation and characteristics of aerobic granular sludge for biological nutrient removal of slaughterhouse wastewater. Experimental results showed that removal performances of chemical oxygen demand (COD), ammonia and phosphate were enhanced with sludge granulation, and their removal efficiencies reached 95.1%, 99.3% and 83.5%, respectively. The aerobic granular sludge was matured after 90days cultivation, and protein-like substances were the main components. Simultaneously, the mass ratio of proteins and polysaccharides (PN/PS) was enhanced to 2.5 from 1.7. The granules with particle sizes of 0.6-1.2 and 1.2-1.8mm, accounting for 69.6%, were benefit for the growth of ammonia oxidizing bacteria (AOB) and nitrate oxidizing bacteria (NOB), and corresponding specific oxygen demand rates (SOUR) of AOB and NOB were 31.4 and 23.3mgO2/gMLSSh, respectively.
进行了实验室规模的实验，以研究屠宰废水生物脱氮过程中好氧颗粒污泥的形成和特性。实验结果表明，污泥颗粒化提高了化学需氧量（COD）、氨氮和磷酸盐的去除性能，去除效率分别达到了 95.1%、99.3%和 83.5%。经过 90 天的培养，好氧颗粒污泥成熟，蛋白质类物质是主要成分。同时，蛋白质和多糖的质量比（PN/PS）从 1.7 增加到 2.5。粒径为 0.6-1.2 和 1.2-1.8mm 的颗粒占 69.6%，有利于氨氧化菌（AOB）和硝酸氧化菌（NOB）的生长，相应的 AOB 和 NOB 的比需氧量（SOUR）分别为 31.4 和 23.3mgO2/gMLSSh。
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