Hasanudin, Udin and Utomo, tanto Pratondo and Suroso, Erdi (2014) Sustainable Wastewater Treatment in Small Scale Tapioca Factory. In: 9 th IWA International Symposium on Waste Management Problems in Agro-Industries, 24-26 November 2014, Kochi, Japan.

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Abstract

Abstract: Small scale tapioca factory usually located in nearby residential area; hence the wastewater has to treat properly to avoid environmental pollution. The objectives of this study are to estimate bioenergy potential from small scale tapioca factory and to evaluate the treated wastewater utilization as liquid fertilizer. Green House Gases (GHGs) emission reduction was also estimated. Wastewater generated from each ton of cassava was measured. COD, pH, TN, and TP concentration of fresh and treated wastewater were analyzed. Covered lagoon system was implemented to treat the wastewater. About 2.75 m3 of wastewater with average COD concentration 9,648 mg/l was produced from each ton of cassava in small scale tapioca factory. During anaerobic digestion, 92% of COD was removed. Through this system, tapioca wastewater has potential to generate 27.76 kWh of renewable energy per ton of cassava. The treated wastewater contained about 1.15 kg of Nitrogen and 0.05 kg of Phosphorous per ton of Cassava with pH about 6.47. Tapioca wastewater treatment using covered lagoon system has successfully to reduced methane emission about 5.7 kg CH4 or 119.88 kg COe per each ton cassava. Utilization of tapioca wastewater for renewable energy and liquid fertilizer increased the sustainability of small scale tapioca industry. Keywords: tapioca, wastewater, bioenergy, greenhouse gases, liquid fertilizer

Item Type: Conference or Workshop Item (Paper)
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Teknologi Hasil Pertanian
Depositing User: ERDI SUROS
Date Deposited: 11 Feb 2019 12:19
Last Modified: 11 Feb 2019 12:19
URI: http://repository.lppm.unila.ac.id/id/eprint/10739

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