Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
Bioresour Technol. 2013 Apr;133:630-4. doi: 10.1016/j.biortech.2013.01.149. Epub 2013 Feb 9.
The present study demonstrated that aerobic granular sludge is capable of treating livestock wastewater from a cattle farm in a sequencing batch reactor (SBR) without the presence of support material. A lab scale SBR was operated for 80 d using 4 h cycle time with an organic loading rate (OLR) of 9 kg COD m(-3) d(-1). Results showed that the aerobic granules were growing from 0.1 to 4.1 mm towards the end of the experimental period. The sludge volume index (SVI) was 42 ml g(-1) while the biomass concentration in the reactor grew up to 10.3 g L(-1) represent excellent biomass separation and good settling ability of the granules. During this period, maximum COD, TN and TP removal efficiencies (74%, 73% and 70%, respectively) were observed in the SBR system, confirming high microbial activity in the SBR system.
本研究表明，在序批式反应器（SBR）中，无需添加支持材料，好氧颗粒污泥即可处理来自奶牛场的牲畜废水。使用 4 小时的周期时间和 9 kg COD m(-3) d(-1) 的有机负荷率（OLR）在实验室规模的 SBR 中运行 80 天。结果表明，好氧颗粒在实验结束时从 0.1 增长到 4.1 毫米。污泥体积指数（SVI）为 42 ml g(-1)，而反应器中的生物量浓度增长到 10.3 g L(-1)，表现出优异的生物量分离和良好的颗粒沉降能力。在此期间，SBR 系统中观察到最大 COD、TN 和 TP 去除效率（分别为 74%、73%和 70%），证实了 SBR 系统中微生物的高活性。
