The above list is only part of our laboratory capability. If parameters outside those mentioned are required please do not hesitate to contact us.

Often operators do not require such an extensive service but are more comfortable having access to operational support from a distance.

Paramount Limited will often combine onsite support with off-site data assessment, providing advice from our offices to ensure plant operation is maintained.

“Paramount” also conducts Oxygen Transfer Efficiency (OTE) tests to allow plant owners to assess the long term running costs of their aeration systems, and confirm that they have the capacity to meet peak oxygen demands.

Tests can be conducted on a wide range of aeration devices including fine bubble diffused aeration systems, coarse bubble aeration systems, surface aerators, jet aeration systems and venturi style aeration systems.

The test procedure involves measuring dissolved oxygen from near zero to saturation against time, and nonlinear regression is used to determine the mass transfer coefficient. To achieve near zero dissolved oxygen concentration, the test water is deoxygenated using either nitrogen gas or sodium sulphite, dependent on aeration system type and the practicality of a particular method. The power consumption of the aeration devices is monitored using power monitoring equipment suitable for systems equipped with variable speed drives. It is common to test aeration systems at several duty points to determine the efficiency over the whole operational range of a particular system.

The data provided by these tests includes SOTR (Standard Oxygen Transfer Rate measured in kgO2/hr), SOTE (Standard Oxygen Transfer Efficiency measured as a percentage of the air put into the system) and SAE (Standard Aeration Efficiency measured in kgO2/kWh).