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The system components are mounted within a ?oor standing painted steel framework.
The wetted wall column is a glass column with water inlet and outlet sections and is gimbal mounted to ensure that it can be set accurately
vertical orientation.
The deoxygenating column is of similar overall size to the wetted wall column, standing vertically adjacent to it. Beside the column is a control
console housing ?ow meters, pump controls and oxygen analyser.
Situated between the columns are two special housings containing the oxygen analysis probes which monitor the oxygen content in the water
entering and leaving the absorption column. The apparatus uses water as the working medium, contained in a storage tank at the rear of the
unit. Pumps delivering water to the deoxygenator and the absorption column are located at the base of the unit.
In operation, water is sparged with nitrogen in the deoxygenator before entering the top of the wetted wall column. Air is pumped by the
integral diaphragm-type air pump into the base of the column. The air passes up the column, giving up the oxygen to the water. Dissolved
oxygen at inlet and outlet can be measured in rapid succession. The water drains into the storage tank to be recycled to the deoxygenator.