.png?format=pjpeg&width=100&quality=10){kind=logo}
Reach Out to Us
We're here to help. Please choose one of the options below to get in touch with us!
Aeration systems play a critical role in wastewater treatment by introducing oxygen to promote biological processes that break down harmful substances. This ensures that water from industrial and municipal facilities is treated effectively before being safely returned to the environment.
Process Design
One widely used approach is the Conventional Activated Sludge (CAS) system, which combines wastewater with oxygen in an aeration tank. This oxygen-rich environment activates microorganisms that consume organic matter and form flocs—clusters that enhance the breakdown of biological components. A typical CAS system includes key components such as aeration tanks, diffusers, and clarifiers, all working together to deliver efficient treatment.
Primary Screening
This is otherwise known as the grit removal phase. The wastewater is passed through screens of varying sizes to filter out leaves and other solid waste.
Equalization (EQ) Tank
After the primary screening, the wastewater travels to the primary sedimentation or EQ tank, in which microorganisms naturally decompose the organic waste.
Clarifying Tank
After going through the EQ tank, the wastewater is sent to the clarifying tank, also known as the “settling tank.”
Tertiary Filter
While wastewater is often safe enough to be reintroduced into the environment after clarification, this component can be utilized to remove more total suspended solids.
Benefits of Conventional Activated Sludge Systems
CAS is the most popular form of wastewater treatment across industries for various reasons:
- Reliability: The CAS system is reliable, ensuring plants can release wastewater safely into the environment.
- Familiarity: Since CAS is one of the oldest wastewater treatment systems, it is familiar to those working in the wastewater industry.
- Versatility: The CAS system offers flexibility for handling various types of loads.
Diffusers
Diffusers are essential for aeration in CAS systems. SSI Aeration, Inc. offers reliable coarse bubble diffuser design through several products, including:
- The AFC coarse bubble disc diffuser for EQ tanks, offering adaptable flow operation
- The ReliaBall® SSI coarse bubble disc diffuser for preventing clogging
- Wide Band diffusers, which can handle more demanding applications in wastewater treatment
Moving Bed Biofilm Reactor (MBBR) Wastewater Treatment Systems
A moving bed bioreactor (MBBR) with a smart design can provide better cost-effectiveness than membrane bioreactor or activated sludge plants. MBBR process design services from SSI Aeration help wastewater treatment plants improve their efficiency. SSI's MBBR systems save money in plant construction, operation, and maintenance.
Full Service
The aeration system designers at SSI Aeration, Inc. understand many factors are involved in building a reliable CAS system customized for clients’ environmental conditions and budgets. SSI designers handle all the heavy lifting, including pipe installation, retrieval systems, diffusers, mounts, supports and accessories.
The SSI Aeration, Inc. team will help clients design the ideal wastewater treatment system and assist through every step of the process, including:
- Consultation
- Calculations
- Simulations
- Hydraulic Studies
- Drafting
- Specifications
- CFD Modeling
- Biological Process Simulation
Build American, Buy American
SSI Aeration’s dedication to what Buy America, Build America represents goes beyond product sourcing and manufacturing. With a complete engineering department in the U.S., SSI provides clients with a wide range of design services to ensure they maximize their wastewater treatment systems and equipment capabilities.
Additional Services Offered by SSI Aeration
Pre-Assembled Diffusers – PODS™
PODs™ pre-assembled aeration diffusers save time and have a low margin of error. They suit situations that require a fast installation or collaboration with a contractor. Learn more about SSI’s exclusive PODs™ diffuser systems and their benefits.
Fixed Grid and Retrievable Systems
Fixed grid systems are a type of configuration used in a diffused wastewater aeration process. The design features a grid of bolting pipes permanently fixed to the floor of a tank, covering the entire area. This diffused aeration system also includes air blowers and diffusers that are connected to the piping.
Full Engineering Installation Services
SSI Aeration has a team of trained technicians who are available to travel to job sites around the world. Having one of our technicians on-site ensures correct installation and worry-free performance over the longest period possible.
Choose SSI for All Your Conventional Activated Sludge Needs
With over 20 years of experience in helping organizations across industries treat their wastewater, SSI Aeration, Inc. will ensure your treatment system helps your business stay regulation-compliant and keeps the environment safe. Call today to request a quote, or submit the contact form.