Prediction of biodegradability ratios in wastewater treatment plant of Skhirat Morocco

In this note, our study was carried out by physico-chemical monitoring in terms of organic matter. The mean objective is to evaluate the performance of the Skhirat wastewater treatment plant based on the ratios COD/BOD and BOD/COD in order to know the degree of biodegradability and to make the decision about the treatment model to choose. In fact, the performances acquired in terms of COD and BOD are respectively of the order of 87.26% and 88.35%; what is significant downstream of this station that we take advantage of to irrigate several green spaces by saving all conventional water resources. In addition, the organic material is easily biodegradable with ratios of COD/BOD and BOD/COD respectively of about 2.05 and 0.49. This allows us to adopt an appropriate biological treatment by design and sizing suitable structures