KLa Systems Slot Injector Aeration SystemSource: KLa Systems
Slot injectors are two-phase, liquid/gas contactors — like conventional jet aerators — but they have very unique geometrical characteristics that result in an oxygen transfer system with distinct advantages compared to conventional jet aeration systems.
The slot injector aeration system was introduced to the USA market in 2006. It is a proven oxygen transfer technology with over 25 years of successful operating service in Europe. The entry to the market place has focused on the food & beverage, chemical and pharmaceutical industries. Like the conventional jet aerator, slot injectors are two-phase liquid/gas contactors but they have very unique geometrical characteristics that result in an oxygen transfer system with distinct advantages compared to conventional jet aeration systems.
Capital Savings: Up to a 60% reduction in liquid flow results in smaller and/or fewer pumps as well as a significant reduction in the size of the liquid piping systems both inside and outside aeration basin.
Capital Savings: The improved gas dissolution results in a 15% reduction in the volume of air required, leading to potentially smaller blowers, motors and/or piping systems.
Energy Savings: The higher velocity jet plume allows for raising the slot injectors off the aeration floor resulting in energy savings due to lower blower pressure.
Energy Savings: The higher pressure pumping system often results in a 15% improvement in hydraulic efficiency.
Energy Savings: KLa`s Slot Injector design data base along with the higher pressure pumping system allows for optimizing aeration efficiency by varying both the air and liquid flow while maintaining all the basic mixing functions of the aerobic process.
In introducing the Slot Injector system, KLa Systems` goal was to focus on both capital and energy savings as well as broaden our application base. The biological treatment processes we have been involved in include: Conventional and High Rate AS processes, SBR, CLR, MBR and MBBR. Since 2006 there are over 60 Slot Injector systems in operation.