Novel Hydrogynamic Separation Technology for Wastewater Treatment


SCH Number
Public Agency
California Energy Commission
Document Title
Novel Hydrogynamic Separation Technology for Wastewater Treatment
Document Type
NOE - Notice of Exemption
Document Description
Palo Alto Research Center Inc. (PARC) will demonstrate their Hydrodynamic Separation (HDS) technology at a wastewater treatment plant in Sunnyvale. The HDS is a compact, highly modular particle separation technology to separate the majority of the suspended solids prior to the activated sludge process (ASP), effectively reducing the energy needed for aeration and allowing an alternative when considering plant expansion. These harvested suspended solids are inherently more difficult to dipest by ASP due to slower mass transfer than soluble organics. However, they cost less energy to dewater than sludge and are a great souces of carbon for anaerobie digestion to produce even more methane, further driving a plant toward being energy neutral.

Contact Information

Anish Gautam
Agency Name
California Energy Commission
Contact Types
Lead/Public Agency


Santa Clara

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
The project will involve demonstration a new method of wastewater solids separation at a wastewater treatment plant.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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