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Water and Wastewater Plant Directory
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Ashland, Oregon, USA
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Ashland Wastewater Treatment Plant
90 North Mountain Ave.
Ashland, Oregon, 97520
USA
Contact Information:
Contact:
Email:
Telephone: (541) 488-5348
Fax: (541) 552-2364
Plant Operation: Municipal
Processing: Wastewater
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Web site:
http://www.ashland.or.us/Page.asp?NavID=8494
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Plant/Process Description:
The City of Ashland's wastewater treatment plant
operates as a secondary treatment system for five
months (December 1-April 30), and as a tertiary
system the remaining seven months (May 1-
November 30). Both processes discharge into
Ashland Creek approximately 1/4 of a mile above
the confluence of Bear Creek.
Secondary Treatment: The City of Ashland's
Wastewater Treatment Plant uses a biological
nutrient removal (BNR) process to treat
wastewater. In a biological process, oxygen is
dissolved into the wastewater to drive the
treatment process. Microbial growth is initiated
in the system which feeds upon the organic
material in the wastewater. Nutrients, mainly
organic nitrogen, are removed from the wastewater
through the BNR processes of nitrification and
denitrification.
Once the clarified effluent has been disinfected
through the UV system, it is aerated prior to
being released to Ashland Creek. This completes
the secondary treatment requirements for
discharging to Ashland Creek. The WWTP discharges
secondary effluent to Ashland Creek for five
months (December 1-April 30) out of the year.
During the rest of the year (May 1-November 30),
the secondary effluent is pumped to a series of
membrane filters for further treatment.
Tertiary Treatment: While the secondary
treatment system is a biological process (needs
to be kept alive), the tertiary system is a
barrier process. In other words, it provides a
physical barrier that will not allow anything
past it. The membrane microfiltration system is
located immediately downstream of the secondary
clarifier. This tertiary treatment system is
designed to provide a high quality effluent for
direct discharge to Ashland Creek. We operate
the tertiary system seven months out of the year,
from May 1st until November 30th.
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Owner:
City of Ashland
Web site:
http://www.ashland.or.us/
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Operating Company:
City of Ashland
Web site:
http://www.ashland.or.us/
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Directions:
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Disclaimer:
Water and Wastewater.com provides the information on
this page for reference purposes only. We do not certify
the accuracy of the information provided by third-party
individuals for this listing.
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