Forced Draft Degasifiers are used to remove unwanted gases from supply water. The degasifier removes the gases by passing the water over a packing media that helps the water form a thin film over the surface area of the tower. A counter current airflow is introduced at the bottom of the tower and travels up the stack through the descending flow of water. The gases are stripped as the air passes over the surface area of the water.

Degasifiers are used in demineralizer applications to strip CO2 following a strong acid cation exchanger or softening application. They can also be used as an economical way to strip hydrogen sulfide or volatile organic compounds (VOC).
Pure Aqua has a complete line of Forced Draft Degasifiers available. The systems start at 75 gpm and go up to 1000 gpm.

Too much gas can be a bad thing; especially when it comes to water treatment and applications. Pure water naturally carries a certain concentration of CO2 gases that are formed by the decay of vegetation in soil and respiration of water organisms. It is also naturally present in rainwater when it percolates through the ground and dissolves alkaline minerals such as limestone.

Gases dissolved in water can present numerous problems for the consumer. Hydrogen sulfide gas gives water that rotten egg smell. Carbon dioxide gas causes high corrosion of concrete, pipes and equipment. Methane gas, which is colorless, odorless and tasteless, accumulates in the water system and causes system noise, water hammering and faucet spitting. Radon gas, which occurs naturally in groundwater in varying quantities, is a known carcinogen and poisonous. It is for these reasons that gases should be removed from treated water.

Forced Draft Degasifiers are well proven as an efficient, reliable and cost-effective approach to reducing dissolved gases during the water treatment process. Tasneem engineers its systems for compact and efficient design tailored to any custom application.

Standard Features

The membrane cleaning skid is designed for manual operation through a local control box located on the skid. A chemical storage tank is mounted on its own stand and connected to the membrane cleaning skid with either hard PVC piping or quick disconnect fittings and flexible hoses. This gives the unit the ability to be mounted in a permanent location or totally portable if desired. The piping is schedule 80 PVC that is hydrostatically tested at the factory. The electrical enclosure is NEMA 4X. All membrane cleaning skid wiring is completed and tested before shipment.