Duine A, Kunst S
Institute of water quality and waste management, University of Hannover, Germany.
Water Sci Technol. 2002;46(1-2):29-33.
Over a period of 6 months, pilot plant investigations were carried out with the purpose of bulking sludge control with different aerobic selectors. The wastewater was dominated by industrial dischargers, containing volatile fatty acids up to 450 mg/l. With complete-mix-selectors it was not possible to achieve a stable SVI below 150 ml/g. The bulking sludge could only be controlled with a sectionalized selector (HRT 5-8 minutes per section). The SVI decreased to values below 100 ml/g. Shock-loads and increased VFA-concentrations (by dosing NaC2H3OO) did not cause filamentous growth.
在6个月的时间里，进行了中试工厂研究，目的是使用不同的好氧选择器来控制污泥膨胀。废水主要来自工业排放源，挥发性脂肪酸含量高达450毫克/升。使用完全混合式选择器，无法使污泥体积指数（SVI）稳定在150毫升/克以下。只有使用分段式选择器（每段水力停留时间为5 - 8分钟）才能控制污泥膨胀。污泥体积指数降至100毫升/克以下。冲击负荷和挥发性脂肪酸浓度增加（通过投加醋酸钠）并未导致丝状菌生长。
