ORGANIC CYCLE SYSTEM: THE RECYCLING OF BIOGAS SLUDGE OF COW MANURE AS BIOCHAR FOR BIOGAS PURIFICATION

Enhancement of biogas potential of primary sludge by co-digestion with cow manure and brewery sludge

Anaerobic digestion (AD) has long been used to treat different types of organic wastes especially in the developed world. However, organic wastes are still more often considered as a waste instead of a resource in the developing world, which contributes to environmental pollution arising from their disposal. This study has been conducted at Bugolobi Sewage Treatment Plant (BSTP), where two orga...

Removal of Hydrogen Sulfide from Biogas Using Cow-manure Compost

The two-part objective of this study was to determine currently available H2S removal technologies suitable for use with farm biogas systems, and to test the feasibility of utilizing on-farm cow-manure compost as an H2S adsorption medium. Integrated farm energy systems utilize anaerobic digesters to provide a waste treatment solution, improved nutrient recovery, and energy generation potential ...

Pretreatment of Straw Fraction of Manure for Improved Biogas Production

Pretreatment of straw separated from cattle and horse manure using Nmethylmorpholine oxide (NMMO) was investigated. The pretreatment conditions were for 5 h and 15 h at 120 °C, and the effects were evaluated by batch digestion assays. Untreated cattle and horse manure, both mixed with straw, resulted in 0.250 and 0.279 Nm CH4/kgVS (volatile solids), respectively. Pretreatment with NMMO improved...

Making Decision Support System for Utilization of Biogas in Iran

The use of renewable energy sources is often suggested to be a good solution for climate change and the dependency to fossil fuel. Biogas utilization is a one of these promising options that can mitigate these problems since biogas is produced by the fermentation of waste, so is rich in methane and has the same characteristics as natural gas. Biogas has increasingly been noticed in different co...

Sludge Treatment to Increase Biogas Production