Amelia, Julfi Restu and Maulidia, O and Haryanto, Agus and Hasanudin, Udin and Triyono, Sugeng Decreasing of Environmental Loads in Tapioca Industry Through Utilization of Biogas Digester Effluent for Fertigation During Vegetables Production. In: International Conference on Sustainable Biomass.

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ABSTRACT In order to lower environmental burden, a tapioca industry make use its wastewater to generate biogas through anaerobic digestion process using a covered lagoon system. However, the effluent from the digester still has not met the quality standards so that it cannot be disposed into the water body. Organic matter remaining in the digester effluent is expected to be used as a source of plant nutrients through fertigation. The purpose of this study was to calculate the reduction potential of environment load th rough the utilization of wastewater effluent from the tapioca wastewater biogas digester and determine the fertigation dose of wastewater addition during vegetable cultivation on soil media. Completely randomized design was used in this experimental with two factors, namely plant type(T) as first factor consisting of T1=pakcoy, T2=water spinach, T3= tomato, and T4=cucumber, and fertigation rate (in term of available water level) as the second factor consisting of K1=100-81%,K2 = 80-61%, K3= 60-41%, K4= 40-21% of available water. The experiment was carried out with three replications and no chemical fertilizer was added. Results showed that water spinach and pakcoy have a higher potential in reducing COD, nitrogen, phosphorus, and potassium as compared to tomatoes and cucumbers. Results also showed that cultivation of pakcoy with available soil water 81%-100% (T1K1) was able to decrease environmental load of 7,47%, water spinach with soil water 61%- 80%(T2K2) reduced the load by 8,26%, tomato with soil water41%-60% (T3K3) reduced the load by 6,43%, and cucumber with soil water 81%-100% (T4K4) reduced the load by 4,54%. Keywords: Tapioca, Biogas, Digester, Fertigation, Vegetable Production

Item Type: Conference or Workshop Item (Paper)
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Teknik Pertanian
Depositing User: DR.Ir.M.Sc Sugeng Triyono
Date Deposited: 09 Nov 2021 01:16
Last Modified: 09 Nov 2021 01:16

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