Pons M N, Corriou J P
Laboratoire des Sciences du Génie Chimique, CNRS-ENSIC-INPL, Nancy, France.
Water Sci Technol. 2002;45(4-5):159-66.
To test the improvement that can be expected in terms of effluent quality of an wastewater treatment plant by activated sludge, an equalisation tank and a storm tank, designed to damp the influent variations under different weather conditions, have been implemented in front of a benchmark plant used to evaluate control strategies. The equalisation tank improves significantly the effluent quality in any weather condition but at a high operation cost due to extra pumping, while the storm tank without by-pass improves the effluent quality in rainy periods with a small increase in cost operation over the no tank case.
为测试活性污泥法污水处理厂在出水水质方面可预期的改善效果，在一座用于评估控制策略的基准工厂前设置了一个均衡池和一个雨水池，旨在缓冲不同天气条件下的进水变化。均衡池在任何天气条件下都能显著提高出水水质，但由于额外的抽水作业，运行成本较高；而无旁通的雨水池在雨季能提高出水水质，与无该池的情况相比，运行成本略有增加。
