A typical system consists of the Slot Injector™ aerators, jet mixers or jet aerators complete with in-basin piping system, back-flush system, liquid recirculation pumps, and air blowers. The pumps supplied are either end suction centrifugal, submersible, or self-priming. Low pressure air is delivered by positive displacement blowers, screw compressors, multi-stage or high speed centrifugal blowers.
Other available Slot Injector™ and jet system components include out-of-basin air and liquid piping system which includes stainless steel pipe, isolation valves, expansion bellows, supports and pressure gauges. Additional scope of supply is available upon request.
KLa Systems is in a unique position to assist industries in meeting the challenges of production expansion and/or optimizing energy usage in their wastewater treatment facility. By retrofitting our Slot Injector™ systems with all types of existing diffuser systems within existing tanks/basins, higher (15-60%) oxygen rates can be achieved.
WERF studies show that fine-pore diffusers have reduced oxygen transfer performance and increased pressure requirements over time due to clogging, and the biggest drop-off is in the first 24 hours of operation. It is not uncommon for these types of aeration systems to require frequent cleaning and replacement within the first five years of operation.
This is not the case with Slot Injector™ aerators or jet aerators, as they are available with an optional Back-Flush System that allows for cleaning out the injectors/jets without the need for basin drainage or to have an operator enter the basin.
Back-flushing these aeration systems is conducted essentially with an airlift pump, that reverses the flow through the inner injector/jet nozzle, resulting in a powerful air/liquid stream that clears trash and debris from the system. With much larger openings and self-cleaning capabilities, Slot Injector™ aeration systems and jet aeration systems are known for long term reliable operation.