ANALISIS PENGARUH CO-DIGESTION FESES SAPI PERAH DAN ISI RUMEN TERHADAP PRODUKSI DAN EMISI METANA (CH4)

Muhammad Arfy Abror, Prof. Ir. Ambar Pertiwiningrum, M.Si., Ph.D., IPU., ASEAN Eng.

2024 | Skripsi | ILMU DAN INDUSTRI PETERNAKAN

Penelitian ini bertujuan untuk mengetahui pengaruh pencampuran bahan baku pada proses pencernaan anaerobik berupa biogas dengan proses co-digestion berupa feses sapi perah dan isi rumen terhadap produksi dan emisi CH4 . Penelitian ini dilakukan dengan melakukan pencampuran bahan baku berupa feses sapi perah dan isi rumen dengan komposisi bahan baku menggunakan perbandingan 75:25, 50:50, dan 25:75. Proses pencernaan anaerobik berlangsung selama 40 hari dan dilakukan analisis karakteristik bahan baku biogas meliputi pH, suhu, dan rasio C/N, serta analisis kandungan CH4 menggunakan metode Gas Kromotografi dilanjutkan dengan perhitungan nilai fluks CH4 untuk mengetahui emisi CH4 yang dihasilkan. Data hasil penelitian dianalisis secara statistik menggunakan One-Way Analysis of Variance, jika terdapat perbedaan signifikan dilakukan uji lanjut Tukey (HSD). Berdasarkan hasil penelitian, dapat disimpulkan bahwa pencernaan anaerobik dengan proses co-digestion berupa pencampuran feses sapi perah dan isi rumen dengan komposisi bahan baku 75:25, 50:50, dan 25:75 belum mampu meningkatkan produksi CH4 serta mengurangi emisi CH4 secara optimal. Namun hasil penelitian ini tetap dapat dijadikan sebagai pencampuran alternatif untuk menghasilkan biogas.

This study aims to determine the effct of mixing raw materials in the anaerobic digestion process for biogas production with co-digestion of dairy cow feces and rumen content on CH4 production and emissions. The study was conducted by mixing raw meterials of dairy cow feces and rumen contents with a ratio of 75:25, 50:50, and 25: 75. The anaerobic digestion process lasted for 40 days. Analysis of biogas raw material characteristics including pH, temperature, and C/N ratio was carried out, as well as CH4 content analysis using the Gas Chromatography method followed by CH4 flux calculation to determine the resulting CH4 emissions. Data from the study were statistically analyzed using One-Way Analysis of Variance, and if there was a significant difference, the Tukey (HSD) test was performed. Based on the research result, it can be concluded that anaerobic co-digestion with a mixture of raw materials in the form of dairy cow feces and rumen contents with raw material compositions of 75:25, 50:50, and 25:75 has not been able to increase CH4 production and reduce CH4 emissions optimally. However, the results of study can still be used as an alternative mixture for producing biogas.

Kata Kunci : co-digestion, emisi CH4, produksi CH4, feses sapi perah, isi rumen, biogas/co-digestion, CH4 emissions, CH4 production, dairy cow feces, rumen content, biogas