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M. Ridho Ulya
Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Konversi

 1 
EFFECT OF EFFECTIVE MICROORGANISMS ADDITION ON METHANE PRODUCTION FROM COFFEE HUSKS Hasrul Anwar; Andhika Sukma; Ridho Ulya
Konversi Vol 11, No 1 (2022): APRIL 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v11i1.11761

Abstract

Coffee husk is a lignocellulosic material which is abundant and can be used to produce biogas. This study compares the production of biogas produced from coffee husk substrate using cow dung and a mixture of cow dung and effective microorganisms. This experiment was carried out for 30 days in an anaerobic batch reactor with a reactor working volume of 3.6 L at mesophilic temperature. The parameters tested in this study were the lignocellulosic content of coffee husks, total solids (TS), volatile solids (VS), volatile fatty acids (VFA), chemical oxygen demand (COD), and the content of biogas produced from both variables. The lignocellulosic compositions obtained from this study were cellulose 65.90%, hemicellulose 24.95%, lignin 0.21%, pectin 0.42%, protein 0.81%, tannins 1.05%, caffeine 0.09%, and polyphenols. The values of Total Solids and Volatile Solids for the two variables are K-KS of 16.78% and 33.98% and K-KSEM of 24.87% and 48.42%, respectively. The total VFA for the two variables is 2.06% (v/v) for K-KS and 2.36% (v/v) for K-KSEM. The COD values for the K-KS and K-KSEM variables were 78.05% and 81.42%, respectively. The composition of biogas for K-KS is CH4 12.35%, CO2 21.68%, and H2 0.32%, while for K-KSEM it is CH4 19.64%, CO2 2.82%, and H2 0.35 %. The methane yields for the two variables, K-KS and K-KSEM, were 0.76 Nm3/kgCODremoval and 1.43 Nm3/kgCODremoval, respectively.Key words: anaerobic digestion, cow dung, rumen fluid, effective microorganism (EM), methane 
Production of biogas from coffee husk waste with rumen fluid and mixture of rumen fluid and cow dung Anwar, Hasrul; Ulya, Ridho; Djana, Miftahul; Mayasari, Rizka
Konversi Vol 12, No 1 (2023): April 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i1.15810

Abstract

Coffee is the second largest traded commodity in the world and also produces by-products and residues. Coffee husk waste is an abundant lignocellulosic material and has the potential to be used as raw material for biogas production. This study compared the production of biogas from coffee husk using rumen fluid with a mixture of rumen fluid and cow dung. In the pretreatment process using ethanol, the waste consisted of 65.90% cellulose, 24.95% hemicellulose, 0.21% lignin, 2.16% pectin, 1.08% protein, 3.11% tannins, 0.91% caffeine, and 3.78% polyphenols. The decrease in TS (total solid) and VS (volatile solid) values for C-RC (coffee-rumen fluid-cow dung) was greater than for C-R (coffee-rumen fluid) as 32.20% and 42.47% were obtained for C-RC, while the values for C-R were 19.32% and 38.37 The VFA (volatile fatty acids) values for C-R and C-RC were 1.09% and 2.24%. The biogas produced for C-R was CH4 of 14.4%, CO2 of 13.75%, and H2 of 0.59%, while that for C-RC consisted of CH4 of 22.3%, CO2 of 4.11%, and H2 of 0.36%. The yield of biogas for C-R was 0.48 Nm3/(kg COD removal) and for C-RC was 1.95 Nm3 /(kg COD removal).
Co-Authors Akhmad Dzahwan Akhmad Dzakwan, Akhmad Ananda Emilia Yusuf Andhika Sukma Anwar, Hasrul Apriani, Katarina Arinal Hamni Ash Shiddiq, Abdul Malik Atri Sri Ulandari Bayu Anggileo Pramesona Betta Kurniawan, Betta Daulay, Suryani A. Dina Endang Ristanti Djana, Miftahul Djanna, Miftahul Elysia Azhara Hedra Fadillah, Ihsanuddin FAUZAN ABDILLAH Fikri, Alip Musaqo Firdaus, Purna Fredison, Fredison Gusri Akhyar Ibrahim Hadibrata, Exsa Happy, Terza A Hazlin, Intan Suroya Huda, Zulmiftah Indra Perdana Indra Perdana Larasati, Ratri M. Lusina, Septia Eva Mawadah, Syabrina Samsu Raudathul Mayasari, Rizka Misfa Susanto Muhammad Irsyad Mukhlis Imanto, Mukhlis Naprida, Alifah Risa Panut Mulyono Panut Mulyono Pradipta, Rio Ariestia Praseliya, Mila Puput Budi Wintoro Puput Budi Wintoro Putra, Muhammad Hakiem Sedo Putra, Ramadani Diana Rio Ariestia Pradipta Rizki Hanriko Rudiyanto, Waluyo Sari, Alya Sirena Sari, Devi Kurnia Siringoringo, Suyen E M Sugiarto, Bagas Gangsar Suharmanto Suharmanto Susianti, Susianti Thorif Adnan Nafis Utari, Ririn Wardhana, Muhammad Fitra Wiwi Febriani Yudianto Yudianto Yunianto, Andi Eka Yuningrum, Hesti