Agustin, Stefani Silvi and Triyono, Sugeng and Telaumbanua, Mareli (2017) SISTEM HIDROPONIK ORGANIK DENGAN MEMANFAATKAN LIMBAH EFFLUENT BIOGAS INDUSTRI TAPIOKA DAN LIMBAH KOLAM LELE. Jurnal Teknik Pertanian Lampung, 6 (3). pp. 161-170. ISSN 2302-559X

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Abstract

Tapioca industry and catfish ponds are among the agricultural industries that discharge liquid waste which has not been utilized yet. The liquid waste is very potential to be utilized as nutrient sources for hydrophonic system, because the waste contains organic materials. This research aims to explore the use of the liquid wastes for growing organic vegetables in a hydroponics system. The main materials used in this research were tapioca industry effluent from tapioca factory in Pesawaran and liquid waste of catfish pond from the Integrated Field Laboratory, Faculty of Agriculture, University of Lampung. Other materials included vegetable seeds and chemicals used for lab analysis (1000 ppm Ammoniac standard solution, NaOH, KI, and HgI2). Tapioca industry and catfish pond wastes were applied on DFT hydrophonic systems. Parameters observed in this study included pH, EC, TS, TSS, TFS, N-Ammonium, BOD5 and plant growth. The results showed that tapioca waste had high pH and EC (9.7 and 2038 ìS/cm respectively). Solid content of tapioca waste was also quite high (1672 mg/L for TS and 1496 mg/L TFS), while The catfish pond waste had low concentrations of TSS (372 mg/L) and N-Ammonium (10,79 mg/L). The best growth of plants was found in the application of catfish pond waste, (plant height was 12,92 cm/ plant and biomass harvested was 10,46 grams/plant). However; in all systems, the vegetables showed suboptimal growths, indicating that they suffered from nutrient deficiency. Thus, the systems did not supply enough nutrients needed by plants. More frequently replacing of the wastes might be better solution for those systems. Keywords: ammonium, liquid waste, nutrient, vegetable

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Teknik Pertanian
Depositing User:	DR.Ir.M.Sc Sugeng Triyono
Date Deposited:	19 Oct 2022 02:37
Last Modified:	19 Oct 2022 02:37
URI:	http://repository.lppm.unila.ac.id/id/eprint/45831

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