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About KLa
Discover our history in jet aeration, proven field performance across 38+ countries, and integrated approach to complex wastewater challenges.
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AESINC
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Founded in 2003, IWS is our parent company and turn-key provider of water and wastewater solutions across North America.
An industry leader in process filtration and industrial wastewater solutions, with deep expertise in the food and beverage industry—specifically in the dairy sector.
Delivers high quality metal fabrications, special purpose equipment, custom machinery, and manufacturing services.
Industry-leading provider of replacement parts, retrofits, and modular systems to membrane bioreactor (MBR) customers.
Tetrasolv Filtration, an industry leader in specialized filtration, separation, and mobile media services and rentals.
AESINC designs, engineers, and assembles reverse osmosis systems for seawater desalination, brackish water treatment, and high-purity water applications.
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Wastewater Treatment Aftermarket Solution:
KLa Rapid Series™ Slot Injector

Overview

Rapid Aeration System Upgrades for Existing Industrial Wastewater Treatment Facilities

Many industrial wastewater treatment facilities are operating with aging aeration infrastructure that no longer provide the oxygen transfer capacity, mixing performance, or operational flexibility required for changing process conditions.

Traditional wastewater treatment plant upgrades often require significant construction activities, basin outages, and lengthy installation schedules. As a result, facilities frequently delay improvements even when aeration performance has become a limiting factor.

The KLa Rapid Series™ Slot Injector was developed to provide a practical alternative. Utilizing KLa’s proven Slot Injector™ technology, the Rapid Series (RS) is a fully assembled, bi-directional flow jet aeration system designed for rapid deployment within existing treatment basins. The system can supplement or replace existing aeration equipment while minimizing installation time and process disruption.

For facilities seeking wastewater system upgrades, increased oxygen transfer capacity, or improved treatment performance, RS Slot Injector provides a cost-effective path to modernization without major reconstruction.

SYSTEM PERFORMANCE

Primary Applications
Industrial Biological Treatment, Food & Beverage, Pharmaceutical, Refinery.

Core Technology
Bi-Directional Slot Injector™ – Fully Assembled, Rapid Deployment Configuration.

Key Advantages
Up to 15% Lower Air Requirements. Up to 55% Reduction in Liquid Flow.

Challenges

Addressing Common Aeration Upgrade Challenges

Aeration performance plays a critical role in wastewater treatment and often becomes a limiting factor as treatment demands increase.

Conventional upgrade approaches frequently require basin drainage, extensive construction activities, and prolonged outages. The KLa Rapid Series™ Slot Injector was developed specifically to simplify aeration system upgrades by utilizing existing treatment infrastructure while minimizing operational disruption.

Facilities may experience:
  • Reduced oxygen transfer performance.
  • Aging or unreliable aeration equipment.
  • Increasing energy consumption.
  • Seasonal loading fluctuations.
  • Capacity limitations within existing basins.
  • Mixing deficiencies in biological treatment processes.
Solution

What Is the KLa RS Slot Injector?

The KLa RS Slot Injector is a pre-engineered jet aeration system that incorporates KLa’s Slot Injector™ technology in a rapidly deployable package.

By utilizing existing tanks and basins, facilities can implement wastewater treatment plant improvements without major structural modifications.

RS Slot Injector is well suited for: 

  • Food and beverage processing
  • Chemical processing
  • Pharmaceutical manufacturing
  • Pulp & paper facilities
  • Refinery applications
  • Leachate treatment
  • Other industrial biological treatment processes
How it works

Improve Oxygen Transfer Efficiency Without Major Reconstruction

Effective biological treatment depends on maintaining adequate oxygen transfer and process mixing under varying operating conditions.

During operation, an air/liquid mixture is discharged through the Slot Injector nozzle, creating a horizontal jet plume that entrains surrounding liquid as it travels through the basin before rising to the surface. This process promotes oxygen transfer and mixing throughout the treatment basin.

By increasing oxygen transfer capacity within existing infrastructure, facilities can implement wastewater treatment plant improvements and wastewater system upgrades without the cost and complexity associated with major expansion projects.

Why choose us

Why Facilities Choose RS Slot Injector

Rapid Deployment

Deploy faster with minimal downtime.

Pre-engineered and fully assembled for accelerated installation without major reconstruction or extended treatment outages.

Minimal Disruption

Keep treatment systems operating during upgrades.

Designed to increase aeration capacity without basin drainage, major process interruptions, or lengthy construction projects.

Increased Oxygen Transfer Capacity

Improve oxygen transfer efficiency and basin mixing.

The high-velocity jet plume design can achieve up to 15% lower air requirements while supporting changing treatment demands and improving process performance.

Reduced Operating Costs

Lower energy consumption and operating expenses.

Achieve up to 55% reduction in liquid flow requirements, helping reduce pumping energy, blower demand, and overall operating costs.

Flexible Financing Options

Align improvements with operational and budget requirements.

Available for purchase or lease to support both short-term operational needs and long-term wastewater treatment plant optimization strategies.

Lease or Purchase Options Available

To provide greater flexibility, the KLa RS Slot Injector is available through both purchase and lease options. Monthly lease options can help facilities convert major capital expenditures into more predictable operating expenses while maintaining flexibility for future wastewater treatment plant improvements.

Learn More About Leasing
faqs

Wastewater Treatment Plant Upgrades Frequently Asked Questions

Wastewater treatment aftermarket solutions are equipment upgrades implemented after original plant construction to improve performance, increase capacity, and extend the useful life of existing infrastructure.

Facilities should evaluate aeration system upgrades when experiencing declining oxygen transfer performance, increasing treatment loads, aging aeration equipment, capacity limitations, or changing process requirements.

Targeted wastewater treatment plant upgrades can improve oxygen transfer capacity, process mixing, and treatment performance while maximizing the value of existing infrastructure.

Common wastewater treatment plant improvements include aeration system upgrades, mixing system improvements, blower optimization, process control enhancements, and equipment replacement projects designed to improve treatment performance and support changing treatment demands.

Wastewater system upgrades allow facilities to improve treatment performance and increase capacity while utilizing existing infrastructure. Targeted improvements can help address aging equipment and support changing treatment requirements without major reconstruction.

Yes. The RS Slot Injector is designed for deployment within existing treatment basins, helping facilities increase oxygen transfer capacity and implement wastewater system upgrades while minimizing construction requirements and operational disruption.

Talk to KLa About Your

Aftermarket Solution

Since 2001, KLa Systems has designed and delivered customized sub-surface wastewater technologies across 38 countries. Contact our technical department to speak with an engineering expert today.