An aerobic Lactobacillus plantarum culture displayed growth stagnation during early growth. Transcriptome analysis revealed that resumption of growth after stagnation correlated with activation of CO2-producing pathways, suggesting that a limiting CO2 concentration induced the stagnation. Analogously, increasing the CO2 gas partial pressure during aerobic fermentation prevented the temporal growth stagnation.
- American Society for Microbiology
- Improvement of lactobacillus plantarum aerobic growth as ...
The gas to grid plant Icknield in UK - Case Study
Location: Ipsden, Oxfordshire (UK)Capacity: 960 kWelInput materials: Pig slurry, farm by-products, energy cropsFeatures: Production of 700 Nm³ biomethane, 360 kWel CHP, Supply natural gas to 2,150 households, Fermentation residue as fertiliser38 million kilowatt hours per yearIcknield Gas Ltd. is the first biogas plant in Great Britain with a gas processing facility from EnviTec Biogas AG. Since the end of 2014, the 370 cubic metre plant, along with a 360 kWel combined heat and power plant in Ipsden, Oxfordshi...
Five key lessons from your open grass silage clamp
Having results of a silage analysis is one thing. But often, it’s only when you get stuck into seeing what’s inside, and feeding it, that you get a full picture of what you’ve produced. And how good it is. The quality (and quantity) of your silage can have a major impact on the financial health of your business for six months or more. So, it’s worth checking it now, to see if any improvements can be made next year. The key is to commit to noting down your clamp observations. Better...
The risks of spreading slurry after first silage cut
Livestock farmers spreading slurry onto fields after first-cut grass silage face heightened risks of contamination after this year’s early start to the season, a silage specialist is warning, especially if following the current trend to more frequent silage cutting.The risks of spreading slurry after first silage cut According to Ecosyl silage expert, Darran Ward, spreading slurry after first-cut always poses a risk – because of the challenge of achieving the 10-week interval typically recommended...
Industrial Anaerobic Biological Fermentation - Case Study
The cooperation between the above mentioned innovative companies forces to impressive results. Hager & Elsässer planned the Aquatyx R2S reactor-technology which is installed in glass lined steel tanks from GLS Tanks International.AQUATYX is primarily for industrial anaerobic biological fermentation of highly polluted wastewater, as they are to also found for example in the paper industry.The two-step, into a tank mounted GLS system, characterized by a low footprint, high degradation rate and gas yield,...
Case study - China Resources Gas Group Ltd
Anaerobic fermentation project with waste water in Qidong Jiangsu Province, China. The purification project was set up in order to connect the biogas to the city’s gas pipeline. The customer’s challenge Biogas upgrading: the Group aims to make use of what would ordinarily be a by-product – waste water. Gas is extracted from a water treatment process, using the contaminants found in waste water (energy-rich hydrocarbons – the same components that make up natural gas). The microbes used...