Open AccessAerobic treatment of POME with indigeneous individual and consortium bacteria
Author(s) -
Muhammad Said,
Rizki Muthiah Rayahu,
Annisa Dela Yuliani,
Muhammad Faizal
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/620/1/012021
Subject(s) - pome , bacillus cereus , burkholderia , bacteria , population , chemistry , microbiology and biotechnology , food science , pseudomonas , aerobic bacteria , chemical oxygen demand , biology , wastewater , botany , environmental engineering , medicine , environmental science , genetics , environmental health
Palm Oil Mill Effluent contains high value of COD, BOD and TSS being able to pollute the water body. Application of aerobic indigeneous bacteria for treatment of the POME was conducted to reduce the value of COD, BOD and TSS. Bacillus cereus ATCC 14579 (KP 1.1), Pseudomonas azotoformans strain NBRC 12693 (KP 1.3) and Burkholderia cepacia ATCC 25416 (KP 2.2) were used to degrade the components of cellulose, protein and lipase in the POME, respectively. The consortium of bacteria were also applied for degradation of POME. The research was conducted in four bioreactors of 12 litres with variation of time 3, 6, 9, 12, 15, 18, 21 and 24 hours. Parameters observed in the research consisted of bacterial population, COD, BOD, TSS and pH. The experimental results showed that the highest population of bacteria of Bacillus cereus ATCC 14579 (KP 1.1), Pseudomonas azotoformans strain NBRC 12693 (KP 1.3), Burkholderia cepacia ATCC 25416 (KP 2.2) and the bacterial consortium were 8.4 × 107 CFU/ml, 8.5 × 107 CFU/ml, 8.2 × 107 CFU/ml and 9.4 × 107 CFU/ml, respectively. The lowest COD value obtained for those bacteria were 22.6 mg/l, 12.3 mg/l, 14.4 mg/l and 11.8 mg/l, respectively. The lowest BOD values were 9.2 mg/l, 4.4 mg/l, 5.2 mg/l, dan 2.9 mg/l while those of TSS value were 3.2 mg/l, 3.0 mg/l, 4.0 mg/l and 4.2 mg/l. Values of pH ranged from 6.7 to 7.6 for Bacillus cereus ATCC 14579 (KP 1.1), from 6.8 to 7.4 for Pseudomonas azotoformans strain NBRC 12693 (KP 1.3), from 6.9 to 7.5 for Burkholderia cepacia ATCC 25416 (KP 2.2) and from 6.7 to 7.5 for the bacterial consortium.