Decreasing of Environmental Loads in Tapioca Industry Through Utilization of Biogas Digester Effluent for Fertigation During Vegetables Production

DOI

10.2991/aer.k.210603.038How to use a DOI?

Keywords

Tapioca, Biogas, Digester, Fertigation, Vegetable Production

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%.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - J R Amelia
AU  - O Maulidia
AU  - A Haryanto
AU  - S Triyono
AU  - U Hasanudin
PY  - 2021
DA  - 2021/06/04
TI  - Decreasing of Environmental Loads in Tapioca Industry Through Utilization of Biogas Digester Effluent for Fertigation During Vegetables Production
BT  - Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)
PB  - Atlantis Press
SP  - 214
EP  - 220
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.210603.038
DO  - 10.2991/aer.k.210603.038
ID  - Amelia2021
ER  -