Abstract
As many developing countries are moving towards increased sanitation coverage, Bangladesh has been striding successfully towards full sanitation coverage with the proper management of fecal sludge city-wide. Following the situation, Khulna City Corporation built a Fecal Sludge Treatment Plant (FSTP) with six units of CW (constructed wetlands) and six units of drying beds in 2017. The main objective of this study is to discuss the current situation of Khulna FSTP based on treatment efficiency and its future perspective on biomass energy (briquette). In Khulna FSTP, the collected fecal sludge from septic tanks and pits is treated, and finally, its effluent is discharged into the environment, satisfying the disposal standards. The removal efficiency of final effluent for Biochemical Oxygen Demands (BOD5) and Total Solids was found to vary between 97.8% - 97% and 98% - 93% in the previous year to the present, respectively. Total Suspended Solis and Fecal Coliform never exceeded the allowable limit 100gm/L and 1000 N/100ml in final effluent. Furthermore, dried sludge is used as handmade processing biomass energy (briquette) without further treatment, which has some procedural problems such as loose compaction and pathogenic contamination.
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