Biogas is an attractive renewable energy carrier. However, it contains CO2 which limits its use for certain applications. Here we report a novel approach for removing CO2 from biogas and capturing it as a biochemical through a biological process. This approach entails converting CO2 into biosuccinic acid using the bacterial strain Actinobacillus succinogenes 130 Z, and simultaneously producing ...

As the anaerobic digestion of energy crops and crop residues becomes more widely applied for bioenergy production, planners operators biogas plants, farmers who consider growing such crops, have a need information on potential methane yields. A rich body literature reports yields variety materials. These data been obtained with different testing methods. This work elaborates an overview types s...

Napier grass (Pennisetum purpureum), represents an interesting substrate for biogas production. The research project evaluated biogas potential production from dry anaerobic digestion of Napier grass using batch experiment. To enhance the biogas production from ensiled Napier grass, thermal and alkaline pre-treatments were performed in batch mode. Alkali hydrolysis of Napier grass was performed...

Anaerobic digestion of source-separated municipal organic waste is considered feasible in Denmark. The limited hydraulic retention in the biogas reactor (typically 15 d) does not allow full degradation of the organic waste. Storage of anaerobically digested municipal organic waste can therefore be a source of methane (CH4) emission that may contribute significantly to the potential global warmi...

Two key aspects of most living things is their ability to exploit natural sources of energy within their environment and their ability to carry out appropriate behaviour in a range of different conditions. This paper describes the progress of a current project that is attempting to develop a robot with an equivalent capability – a robot capable of autonomous action on agricultural land. The rob...

This study aimed to estimate the amount of biomass energy that can be acquired from crop residues in Eritrea, a country horn Africa with population 6 million and having national income per capita is around 150 US dollars. It’s an agricultural country. The potential was calculated by considering calorific values available residue. For year 2015, total value estimated approximately 1332.34TJ. Acc...

One of the key aspects of most living things is their ability to detect and exploit natural sources of energy within their environment. We are currently developing a robotic predator system that will attempt to sustain itself by hunting and catching slugs on agricultural land. The slugs will be fermented to produce biogas, which will be converted to electricity by a fuel cell to provide the rob...

The impact and cost of synthetic fertilizers as well as their associated risks on the environmental safety was becoming unaffordable. To alleviate these problems, integrating this synthetic fertilizers with easily available and an environment friendly compound like bio-char is of very high significance towards meeting our goal of increasing agricultural production and ensuring food security. Th...

Biogas derived from organic wastes is considered as good alternative to petroleum fuels. It can be used in compression ignition (CI) engines, because of its better mixing ability with air and clean burning nature. Biogas is produced by anaerobic digestion of various organic substances such as kitchen wastes, agricultural wastes, municipal solid wastes, cow dung etc., in absence of oxygen, which...