Biogas Systems/Anaerobic Digestion Tanks
In a biogas installation, green power is produced from manure and biomass. Because of the optimisation and innovation of the biogas industry and the continuously rising energy prices, it has become very profitable to invest in a biogas installation. The generated electricity can be sold to energy companies attractive tariffs for sustainable electricity. The quantity of electricity generated can be guaranteed, making biogas installations attractive investments. A biogas installation also contributes to environmental protection by using sustainable energy resources.
Anaerobic Digestion Tanks
Chemstore supply and erect modular bolted fusion bonded epoxy steel and glass coated steel tanks for use as Anaerobic Digesters. Chemstore has many years experience in the global market sector and are able to offer a full A-Z contract management package, or a basic supply package only. A full range of ancillary products including gas-tight roofs in fusion bonded epoxy steel and glass coated steel are available with options available to accommodate centrally mounted roof mixers. Available in a wide range of sizes and capacities (from 50m3 to over 5000m3), all Chemstore fusion bonded epoxy tanks can be supplied, if required, in any colour.
Mesophillic – 35deg C
Thermophillic – 55deg C
Pressure – 30mbar to 70mbar
Vacuum – 1mbar to 5mbar
Liquid contents – SG 1.05 – 1.10
In addition to the time and cost benefit, the modular bolted system also allows full flexibility. All tanks are supplied with the ability of being remodelled, extended; or dismantled, re-sited and rebuilt at a future date if so desired.
Double Membrane Roofs
Chemstore also offer biogas double membranes for bio fermentation installations. Our supplier is one of the original developers of biogas double membrane roofs and this system concerns a double membrane synthetic foil construction for covering the tank and storing the produced gas.
The biogas double membrane roof is a cover with variable gas storage. When the gas pressure under the lowest membrane is lower than the air pressure between the two membranes; then the lower membrane lies on the supporting sub-construction.
However, when the gas pressure under the lowest membrane is higher than the air pressure between the two membranes, then the lower membrane lifts up. The variable gas volume arises from the lower membrane being able to move between these two limits.
Depending on the diameter of the cover, the content of the variable gas holder can expand up to 2500 cubic meters. The double membrane roof is a cost effective way to store gas whilst keeping the plant footprint to a minimum.