Secondary treatment processes can remove up to 90 percent of the organic matter in wastewater by using biological treatment processes. The two most common conventional methods used to achieve secondary treatment are attached growth processes and suspended growth processes.

Siemens is a world leader in all types of biological treatment systems, including some of the most innovative processes in the market designed to save cost and conserve space and energy:

• Aeration devices and systems
• Attached growth systems
• Suspended growth systems
• Solids reduction processes

Siemens also provides pilot treatment systems and analytical testing to document the efficacy of treatment prior to installation. We also provide parts and service on all of our equipment, as well as equipment which may have been provided by other manufacturers.