Analisis Produksi Biogas dari Limbah Kulit Kopi

Abstract

In general, post-harvest coffee processing machines use LPG materials which are a type of non-renewable energy. Coffee production in large quantities results in the accumulation of coffee husk waste if it is not managed properly. This study aims to analyze biogas production from coffee husk waste and analyze the characteristics of residues produced after the anaerobic fermentation process is completed which includes pH, COD, and BOD values. This study was conducted by comparing the results of biogas production from coffee husk waste without Pretreatment with coffee husks from chemical Pretreatment. The data obtained was analyzed to calculate the efficiency of the value of the residual characteristics. The results of the study showed that the production of biogas from chemical Pretreatment coffee bark waste produced more biogas and greater efficiency of depreciation of residue characteristics. In the coffee skin, chemical Pretreatment can produce 13.41 liters of biogas with the longest gas combustion duration of 51 seconds. On coffee skins without biogas Pretreatment, the resulting 11.47 liters with a maximum gas burning duration of 42 seconds. This research shows that the production of biogas from chemical Pretreatment coffee husks is more effective to produce biogas.