Tanaka N, Hvitved-Jacobsen T
Ductile Iron Pipe R&D Dept. KUBOTA Corporation, Hyogo, Japan.
Water Sci Technol. 2002;45(3):71-9.
Anaerobic transformations of wastewater organic matter and sulfide production rate were studied using a pilot plant pressure sewer (inner diameter: 102 mm, length: 47 m). Furthermore, a process model description including carbon and sulfur cycle was presented. Wastewater characterization based on oxygen utilization rate (OUR) measurement and VFA analysis was employed. Under anaerobic conditions, a net production of readily biodegradable substrate was observed, which fact is important for biological removal of nitrogen and phosphorus at subsequent wastewater treatment plants. Model parameters were determined on the basis of experimental findings. The model simulation of transformations of organic matter in sewers can be used as input to the model simulation and evaluation of the processes in wastewater treatment plants. The model is also useful to evaluate the problems in both sewers themselves and treatment plants caused by hydrogen sulfide.
利用中试压力下水道（内径：102毫米，长度：47米）研究了废水有机物的厌氧转化和硫化物产生率。此外，还提出了一个包括碳和硫循环的过程模型描述。采用基于氧利用率（OUR）测量和挥发性脂肪酸（VFA）分析的废水特性表征方法。在厌氧条件下，观察到易生物降解底物的净产生，这一事实对于后续污水处理厂中氮和磷的生物去除很重要。根据实验结果确定了模型参数。下水道中有机物转化的模型模拟可作为污水处理厂过程模型模拟和评估的输入。该模型对于评估下水道本身以及污水处理厂中由硫化氢引起的问题也很有用。
