International Journal of Advanced Multidisciplinary Research and Studies
Volume 2, Issue 6, 2022
Characterization of Faecal Sludge with a view to Modeling Agro-Economic and Environmental Valorization
Author(s): Razafitoninjara Marcellin, Rasoavinjara Clinah Dolly, Randrianantenaina Antoni, Rasoanandrasana Emilienne, Rasolonjatovo Martial Zozime
Abstract:
Based on a compilation of data from several studies, it was found that only 15% of faecal sludge was treated and that the residues are poorly managed or even not recovered in Madagascar. In particular, in 2011 the city of Mahajanga with its 240,000 inhabitants fell victim to the latter case and it could deserve to benefit from a clear assessment allowing a sanitation strategy to be drawn up for the entire city. Taking into account the different eventualities, the Training in Waste Treatment Sciences and Techniques (STTD) of the Faculty of Sciences, Technologies and the Environment (FSTE) of the University of Mahajanga worked together with IRCOD of Mahajanga in order to find an example of the good management and treatment of faecal sludge. This study sheds light on the value of faecal sludge in terms of its ecological and environmental interests and also the efficiency of its treatment in correlation with the number of inhabitants of the city. The methods used are to conduct a survey of the population using toilet latrines to be emptied, to take samples at the level of the target neighborhoods. The samples of the drained sludge were analyzed in the Laboratory for Analysis and Research in Environment and Waste (LARED). According to the statistical analysis of the data by the Least Square method and by the confidence interval, the result showed that it is possible to carry out the management of faecal sludge with an awareness of the population that the proportion of their organic matter is similar to that of other biological waste which is favorable to the different agricultural valuations after solar drying. The practice of this management of faecal sludge provides a new avenue for ecological and environmental development without neglecting their recovery in biogas production.
Keywords: Faecal Sludge, Recovery, Analysis, Organic Matter, Biogas, Environment
Pages: 635-638
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