Optimization of Concentration and EM4 Augmentation for Improving Bio-Gas Productivity from Jatropha curcas Linn Capsule Husk

Most literature suggests that two-phase digestion is more efficient than single-phase. The series of two-phase digestion studies have been conducted from 2011 to 2013 at the research farm of PT Bumimas Ekapersada, West Java, Indonesia. This paper reports on a research on optimation of concentration...

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Main Authors: G.A, Praptiningsih (Author), Hendroko, Roy (Author), Wahono, Satriyo K (Author), Sasmito, Andi (Author), O. Nelwan, Leopold (Author), Nindita, Anggi (Author), Liwang, Tony (Author)
Format: EJournal Article
Published: Center of Biomass & Renewable Energy, Diponegoro University, 2014-02-15.
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LEADER 02617 am a22003013u 4500
001 IJRED_UNDIP_6149_pdf
042 |a dc 
100 1 0 |a G.A, Praptiningsih  |e author 
100 1 0 |e contributor 
700 1 0 |a Hendroko, Roy  |e author 
700 1 0 |a Wahono, Satriyo K  |e author 
700 1 0 |a Sasmito, Andi  |e author 
700 1 0 |a O. Nelwan, Leopold  |e author 
700 1 0 |a Nindita, Anggi  |e author 
700 1 0 |a Liwang, Tony  |e author 
245 0 0 |a Optimization of Concentration and EM4 Augmentation for Improving Bio-Gas Productivity from Jatropha curcas Linn Capsule Husk 
260 |b Center of Biomass & Renewable Energy, Diponegoro University,   |c 2014-02-15. 
500 |a https://ejournal.undip.ac.id/index.php/ijred/article/view/6149 
520 |a Most literature suggests that two-phase digestion is more efficient than single-phase. The series of two-phase digestion studies have been conducted from 2011 to 2013 at the research farm of PT Bumimas Ekapersada, West Java, Indonesia. This paper reports on a research on optimation of concentration and augmentation of EM-4 (effective microorganism-4), a local commercial decomposer, as efforts to stabilize a biogas technology which made from husk capsules of Jatropha curcas Linn (DH-JcL). The studies of increasing organic loading rate (OLR) for the two-phase digestion was conducted to improve efficiency.  The concentration variable studied was 1: 8 (1 part DH-JCL and 8 parts water), compared to 1: 12 as a control. The augmentation treatment is the addition of EM-4 by 5% (v/v). It was also examined the augmentation of F2-EM4 (150 times duplication of EM-4) due to cost consideration. The studies were conducted in the laboratory which using a liter and two liters of glass digester and glass wool as immobilized growth. The results of this study support the previous studies: the optimum concentration was 1: 8, EM-4 was able to increase biogas production in two-phase digestion, yet biogas production decrease at single-phase. F2-EM4's ability to support production of biogas were equivalent to that of EM-4. 
546 |a eng 
690 |a , EM-4, concentration, Jatropha curcas Linn capsule husk, two-phase anaerobic digestion 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n International Journal of Renewable Energy Development; Vol 3, No 1 (2014): February 2014; 73-78 
786 0 |n 2252-4940 
787 0 |n https://ejournal.undip.ac.id/index.php/ijred/article/view/6149/pdf 
856 4 1 |u https://ejournal.undip.ac.id/index.php/ijred/article/view/6149/pdf  |z Get Fulltext