Abstract
A research that analyzed the relationship between biogas production as renewable energy and performance of waste water treatment in tofu small industry using AnSBR reactor has been conducted. This research used system operation method in batches in to get a description of how the biogas production system works as it was operated in the batch mode, which is applied in tofu industry. An instrument capable of operation in batch mode using AnSBR reactor was designed as it does not require sludge re-circulation. An AnSBR reactor includes five stages of; filling, reaction, settling, decanting, and stabilization (idling state). The research was run for 24 days using biogas collected in a tank. Biogas was measured for each HRT starting on the second day HRT to 24th day HRT. Biogas characteristics were monitored on day 16th for contents of CH4, CO2 and heat value. Results show that CH4 content in the biogas amounts to 78.26 %, while CO2 comprises 20.16 %. Meanwhile, the heat value, which depends on acid methane and CO2 content, is 4,246.55 kkal/kg.
Highlights
Application of science and technology for waste water treatment will minimize negative effects of this waste that environmental management can be carried out properly
In order to endorse environmentally friendly sustainable development, the science and technology of waste water treatment needs to be disseminated in the education community, within the general public, and in business and industry, including the tofu industry
This stage of research was aimed at understanding the effect of Hydraulic Retention Time (HRT) on the performance of AnSBR bio digester operated in batch mode for biogas production
Summary
Application of science and technology for waste water treatment will minimize negative effects of this waste that environmental management can be carried out properly. In order to endorse environmentally friendly sustainable development, the science and technology of waste water treatment needs to be disseminated in the education community, within the general public, and in business and industry, including the tofu industry. High content of organic compound is a high energy source in the form of methane that will allow anaerobic bacteria to survive for a long time without the presence of food/substrates. These makes waste water treatment in small scale tofu industry a possibility [1]. Microorganisms in an AnSBR reactor tend to be lifted and re-deposited due to the formation of gas in the process [2]
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