Salsabila, Hanna Syakira and Prof. Sri Suhartini,, STP, M.Env.Mgt, Ph.D and Prof. Dr. Ir. Nur Hidayat,, MP. (2024) Potensi Metana Spesifik dan Studi Kinetika Anaerobic Mono- dan Co-Digestion Limbah Makanan dan Jeroan Ikan Tanpa Pencucian. Sarjana thesis, Universitas Brawijaya.
Abstract
Salah satu jenis energi baru terbarukan (EBT) adalah energi yang bersumber dari biomassa yaitu biogas. Biomassa jeroan ikan tanpa pencucian (UJ) dan limbah makanan (LM) memiliki komponen organik yang berpotensi menghasilkan metana. Penelitian ini bertujuan untuk mengevaluasi potensi metana spesifik dan studi kinetika proses anaerobic digestion. Metode yang digunakan adalah rancangan acak lengkap non-faktorial dengan faktor rasio pencampuran. Terdapat 7 sampel perlakuan (kontrol blank, alpha selulosa, UJ:LM (100:0 dan 0:100) untuk mono-digestion dan UJ:LM (70:30, 50:50, 30:70) untuk sampel co-digestion) dengan 3 kali pengulangan sehingga terdapat 21 sampel percobaan. Uji potensi metana spesifik dilakukan dengan menggunakan metode uji Biochemical Methane Potential (BMP) manual yang dilanjutkan dengan studi kinetika menggunakan metode orde pertama, Monod, modified Gompertz, dan logistik. Parameter uji yang dilakukan terdiri dari uji proksimat, uji ultimat, uji lignoselulosa, dan uji calorific value (CV), dan uji N, P, K. Hasil penelitian menunjukkan bahwa komposisi UJ dan LM berdasarkan uji proksimat, ultimat, lignoselulosa, dan CV menghasilkan nilai yang berbeda namun masih berada di range optimal. Adapun nilai C/N pada semua sampel masih berada di bawah rentang optimal (berada diantara 5,45-12,46). Adapun sampel UJ:LM (30:70) menghasilkan potensi metana spesifik tertinggi yaitu 0,225 m3CH4/Kg VS. Nilai potensi metana spesifik semua sampel perlakuan dilakukan uji reliabilitas dengan nilai Cronbach Alpha berada pada rentang 0,753-0,952 yang menunjukkan semua data bersifat reliabel. Pengujian digestate (residu organik) menunjukkan nilai pH, EC dan salinitas masih berada dibatas normal. Sementara studi kinetika menunjukkan model logistik dan modified Gompertz mampu menggambarkan data eksperimen secara akurat dengan nilai RMSE yang rendah dan R2tertinggi.
English Abstract
One type of new renewable energy (EBT) is energy sourced from biomass, namely biogas. Unwashed fishwaste biomass (UJ) and food waste (LM) have organic components that have the potential to produce methane. This study aims to obtain the characteristics of raw materials and methane gas potential and evaluate the kinetics modelling of the Anaerobic Digestion process. The method used was a non-factorial complete disc design with the treatment factor being the mixing ratio. There were 7 treatment samples (inoculum, alpha cellulose, UJ:LM (100:0 and 0:100) for mono-digestion and UJ:LM (70:30, 50:50, 30:70) for codigestion samples) with 3 repetitions so that there were 21 experimental samples. Specific methane gas potential test was conducted using manual biochemical methane potential (BMP) test method followed by kinetics study using first order, Monod, modified Gompertz, and logistic methods. The test parameters consisted of proximate test, ultimate test, lignocellulose test, and calorific value (CV) test. The results showed that the composition of UJ and LM based on proximate, ultimate, lignocellulose, and CV tests produced different values but were still in the optimal range. However, the C/N values in all samples were still below the optimal range (between 5.45-12.46). The UJ:LM (100:0) sample produced a specific methane potential of 0.182 /kg VS greater than the UJ:LM (0:100, 70:30, and 50:50) samples. The UJ:LM (30:70) sample produced the highest specific methane potential of 0.225 /kg VS. The specific methane potential value was tested for reliability with a Cronbach Alpha value between the ranges of 0.523-.952 which indicates all data are reliable. Testing of digestate (organic residue) showed the pH, EC and salinity values were still within normal limits. Meanwhile, the kinetics study showed that the logistic and modified Gompertz models were able to accurately describe the experimental data with low RMSE values and highest R
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052410 |
| Uncontrolled Keywords: | Anaerobic Digestion, Biochemical Methane Potential test, Jeroan Ikan Tanpa Pencucian, Limbah Makanan, Potensi Metana Spesifik |
| Divisions: | Fakultas Teknologi Pertanian > Teknologi Industri Pertanian |
| Depositing User: | Unnamed user with username nova |
| Date Deposited: | 05 Mar 2024 06:29 |
| Last Modified: | 05 Mar 2024 06:29 |
| URI: | http://repository.ub.ac.id/id/eprint/216892 |
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