The reuse of treated waste water in agriculture
1999
Ait Hamou, R. (Institut national de la recherche agronomique d'Algerie, El-Harrach (Algerie))
The waste water introductions as a complementary resource of water constitutes an interesting contribution for the agriculture that suffers from a shortage of water. However, the agricultural utilization of waste waters can result in a sanitary risk that has to be evaluated objectively. This objective evalution requieres among other things, a knowledge of the chemical and microbiological contamination state of waters and the limits between which can vary the level of this contramination. Therefore, a study on the quality of processed used has been undertaken. This study has allowed us to characterize processed waters of the STEP of Baraki (Algiers), by a series of physico-chemical and bacteriological analyses, to complete this study on the agronomical aspect, an experimentation under a greenhouse has been realized in order to follow the waste processed water impact on the ground and a crop of pepper and compared to a control sample irrigated with drilling water. The analysis of the results has revealed the absence of a chemical pollution, a very weak content in fertilizing elements, and bacteriological pollution.
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