The Innovation of Tofu Waste Liquid Biogas Reactor Technology as an Alternative Energy Resource

Nely Ana Mufarida, Asroful Abidin


DOI: https://doi.org/10.14710/9.1.20-24

Abstract


Abstract - Increased production capacity of the tofu factory has an impact on increasing waste. Tofu liquid waste is one of the untapped wastes and even just thrown away. Besides, the tofu industry needs water for its processing, so more wastewater produces more than tofu solid waste. Wastewater from the making tofu process produces liquid waste which is a source of pollution for humans and the environment that will disrupt the ecosystem and environmental health.

The right process for handling tofu wastewater is by an anaerobic process that converts the liquid waste fermented by bacteria into methane gas. This methane gas can be used as a new energy resource and this energy can be used for cooking or frying tofu.

The results of the research are from 500 liters of tofu liquid waste treated, 149.6 liters of biogas were obtained in 21 days. It increased the quality of biogas as seen from the increase in CH4 levels by 70%, temperature in the digester by 32oC, volume in 149.6 liters, and decreasing H2S levels by 9 ppm, CO by 13 ppm, O2 by 15.1%. Based on the test results, the maximum fermentation time is 21 days.


Keywords


Renewable Energy, Design, Tofu Liquid Waste, Digester, Biogas.

Full Text:

PDF

References


BPS, “Statistik Indonesia,” 2020.

BPS, “Statistik Indonesia,” 2017.

L. Guruswamy, “International energy and poverty: the emerging contours,” vol. 1, pp. 193–196, 2016.

A. Abidin, C. W. Purnomo, and R. B. Cahyono, “Hydro-char Production from Press-mud Wastes of The Sugarcane Industry by Hydrothermal Treatment with Natural Zeolite Addition,” vol. 020049, 2018.

Nohong, “Pemanfaatan limbah tahu sebagai bahan penyerap logam krom , kadmiun dan besi dalam air lindi TPA,” J. Pembelajaran Sains, vol. 6, no. 2, pp. 257–269, 2010.

Sugiharto, Dasar-dasar pengelolaan air limbah. 1987.

S. Wahyuni, Biogas. Penebar Swadaya, 2009.

S. Cheng et al., “Biogas standard system in China,” Renew. Energy, 2020.

B. Rahmat, T. Hartoyo, and Y. Sunarya, “Biogas production from tofu liquid waste on treated agricultural wastes,” vol. 9, no. 2, pp. 226–231, 2014.

R. Feiz, M. Johansson, E. Lindkvist, and J. Moestedt, “Key performance indicators for biogas production d methodological insights on the life-cycle analysis of biogas production from source- separated food waste,” vol. 200, 2020.

W. Malik, C. Mohan, A. P. Annachhatre, and I. I. T. Mandi, “Community based biogas plant utilizing food waste and cow dung,” Mater. Today Proc., no. xxxx, 2020.

R. Bedoi, A. Spehar, J. Puljko, L. Cu, B. Cosi, and T. Puk, “Opportunities and challenges : Experimental and kinetic analysis of anaerobic co-digestion of food waste and rendering industry streams for biogas production,” vol. 130, no. June, 2020.

D. W. Pratama and A. Abidin, “Pengaruh Variasi Komposisi Starter Kotoran Kuda, Ragi Dan Em- 4 terhadap Kualitas Bahan Bakar Biogas Limbah Cair Tahu,” vol. 4, no. 2, pp. 24–29, 2020.

R. Prastya, B. Susilo, and M. Lutfi, “Pengaruh penggunaan bahan bakar biogas terhadap emisi gas buang mesin generator set influence of biogas fuel usage on generator set exhaust emission,” vol. 1, no. 2, pp. 77–84, 2013.




Published by Waste Resources Research Center (WRRC), Diponegoro University - Indonesia
   
 
WasTech by http://ejournal.undip.ac.id/index.php/wastech is licensed under Creative Commons Attribution-ShareAlike 4.0.