Trappings - Import export

Fine sediment and foam particles in the saturated biogas originating directly from the digestion can make it s way into the pipework system. In order to eliminate sediment accumulation in the pipework an ennox sediment trap can be used. The trap is installed after the reactor directly in the pipework. With a special nozzle at the trap inlet the saturated and contaminated gas is set into a spiral motion. The particulate matter separates from the gas on the side walls and passed into the collection point with the extracted water vapour. Discharge is carried out with a siphon. Additionally a spray and control connection can also be installed.

"Under certain conditions foam can accumulate in the digester as a result of the fermentation process. If allowed to enter into the pipework, the foam can result in blockage, damage or impair the functionality of safety devices. The gas dome integrated ennox foam trap utilizes a light curtain detection system, which reliably recognizes any build-up of foam and prevents the ingress of such foam into the pipework. With the compact assembly directly on the gas dome, the detection and counter-measures are immediate, therefore requiring no installation of a return pipe system for the accumulated foam back into the digester. As an option, the foam trap can be provided with a fully automatic controller as well as with mechanical over/under pressure safety valves."