Abstract
Increasing energy demand is not alongside the availability of limited fossil fuels. Alternative and renewable energy sources are not only an option to overcome energy problems but also essential to minimize global warming. Another critical and promising renewable energy source is biomass-derived from livestock feces. Beef cattle feces contain a microorganism consortium that can be used as a starter with coal media to form biogas. Indonesia recently developed coal waste processing into renewable energy, such as biogas. This study aimed to overview the ecological diversity of microbial consortium of beef cattle feces, lignite coal waste, and a combination of livestock and lignite coal waste under mesophilic conditions. This research is an explorative method, the data obtained were analyzed descriptively. The process of formation was carried out anaerobically on a bottle containing the rumen fluid medium. The fermentation process lasted 42 days at 39℃ of temperature. After that, the sample was electrophoresis, followed by next-generation sequencing (NGS) method. NGS data is processed with the MG-Rast website. This study demonstrates the ecological diversity of microbial consortium of beef cattle, lignite coal waste, and a combined consortium. The results showed ecological diversity in the form of taxonomy dominated by bacteria, eukaryotes, and archaea.
Highlights
Beef cattle feces is a waste that has not optimally used
This study aimed to overview the ecological diversity of microbial consortium of beef cattle feces, lignite coal waste, and a combination of livestock and lignite coal waste under mesophilic conditions
This study demonstrates the ecological diversity of microbial consortium of beef cattle, lignite coal waste, and a combined consortium
Summary
Beef cattle feces is a waste that has not optimally used. It will pollute the river environment is to increase Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and reduce dissolved oxygen (DO) and can cause greenhouse gases. Feces is a livestock waste that contains organic materials that can be converted into energy sources in biogas form (Olvera and Lopez-Lopez 2012; Pap and Maróti 2016). Facilitate biogas formation; beef cattle feces can be handled by culturing beef cattle feces consortium as biogas starter with lignite coal media. Microorganisms in feces come from the digestive tract of beef cattle such as Enterobacter. Bioaugmentation and biostimulation process can increase the amount of microorganism from feces beef cattle and coal more than 1010 CFU/ ml so that can be used as biogas starter
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
