Wang Shu-Guang, Liu Xian-Wei, Gong Wen-Xin, Gao Bao-Yu, Zhang Dong-Hua, Yu Han-Qing
School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
Bioresour Technol. 2007 Aug;98(11):2142-7. doi: 10.1016/j.biortech.2006.08.018. Epub 2006 Oct 27.
Aerobic granular sludge was cultivated in a sequencing batch reactor fed with brewery wastewater. After nine-week operation, stable granules with sizes of 2-7 mm were obtained. With the granulation, the SVI value decreased from 87.5 to 32 mL/g. The granular sludge had an excellent settling ability with the settling velocity over 91 m/h. Aerobic granular sludge exhibited good performance in the organics and nitrogen removal from brewery wastewater. After granulation, high and stable removal efficiencies of 88.7% COD(t), 88.9% NH(4)(+)-N were achieved at the volumetric exchange ratio of 50% and cycle duration of 6h. The average COD(t) and COD(s) of the effluent were 212 and 134 mg/L, respectively, and the average effluent ammonium concentration was less than 14.4 mg/L. Nitrogen was removed due to nitrification and simultaneous denitrification in the inner core of granules.
在序批式反应器中用啤酒废水培养好氧颗粒污泥。经过九周的运行，获得了尺寸为2 - 7毫米的稳定颗粒。随着颗粒化，污泥体积指数（SVI）值从87.5降至32毫升/克。颗粒污泥具有出色的沉降能力，沉降速度超过91米/小时。好氧颗粒污泥在啤酒废水的有机物和氮去除方面表现良好。颗粒化后，在体积交换率为50%和周期时长为6小时的条件下，实现了88.7%的化学需氧量（COD(t)）、88.9%的氨氮（NH(4)(+)-N）的高且稳定的去除效率。出水的平均COD(t)和COD(s)分别为212毫克/升和134毫克/升，且出水氨氮平均浓度小于14.4毫克/升。颗粒内部核心通过硝化作用和同步反硝化作用实现氮的去除。
