Open AccessBiomethanization technology application on slaughterhouse in Indonesia
Author(s) -
Nurlisa Ginting
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/963/1/012037
Subject(s) - waste management , randomized block design , biogas production , biogas , wastewater , environmental science , cow dung , activated sludge , pulp and paper industry , sewage treatment , zoology , methane , chemistry , mathematics , environmental engineering , anaerobic digestion , fertilizer , biology , engineering , organic chemistry , statistics
At small community slaughterhouses/TPH in Indonesia, waste is discharged into the environment. On the government side, waste from small slaughterhouses/RPH is channeled into facultative ponds, while solid waste from big slaughterhouses is disposed of in a landfill, while liquid waste is dumped into wastewater treatment using the activated sludge method. The research objective is to prove that biomethanization technology could be used to treat liquid waste in Indonesian slaughterhouses. The study used a 2x3x5 factorial randomized block design. The first factor was stirred substrate/rumen; P0 = not stirred, P1 = stirred 10 minutes and P2 = stirred 20 minutes. The second factor was addition of urine; U0 = no urine, U1 = 20% urine and U2 = 40% urine and there were five replications. The parameters were Biological Oxygen Demand (BOD), biogas production, temperature, pH and sludge Carbon/Nitrogen ratio (C/N ratio). The results showed a decrease in BOD by 72%, and 20 minutes of stirring treatment resulted in 170.26 liters of methane gas per kg of rumen. The average temperature of the research substrate was 26.43°C with a pH around 7, and sludge C/N was 9.01. The results of the study are worth considering for application on Indonesian slaughterhouses because they prove that with the biomethanization technology, besides eliminating waste, other benefits can also be obtained, such as renewable energy and sludge.