Treatment of Pigsty Wastewater by Filters Reed Plants: Influence of Organic Load on the Efficiency of Echinochloa Pyramidalis

Abstract

Context: Filters planted with reeds is an extensive treatment technology. Because of its relatively easy implementation and low operating cost, they arouse the enthusiasm of both decision-makers and scientists. The goal of this study is to assess the effect of organic load of a pigsty wastewater on the development of Echinochloa pyramidalis. Methodology: In order to achieve this objective, an experimental device has been installed. The device consisting of three tanks B1, B2 and B3 was supplied with wastewater from the pigsty after their characterization. After an experimental period set at 08 days, the treated effluents were then characterized. Results: The reduction obtained on the first filter pan (B1) is as follows: 60% of COD, 97.87% of MES, 90.81% of Pt and 65% of NTK. Regarding the second filter pan (B2), the reduction in COD is 20%, 96.60% for SS, 83.65% of Pt and -3.33% of NTK. As for the last experimental tank (B3) with a planted filter, the reduction is also 20% for COD, 98.30% MES, 67.68% Pt and 20% NTK. Conclusion and prospect: At the end of the experiment carried out, it is concluded that the organic load has an influence on the performance of the filters.