Skip to main content

PILOT TESTING OF HIGH RATE PHSICAL-CHEMICAL TREATMENT (HRPCT) FOR WET WEATHER TREATMENT

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

This paper presents the results of pilot testing of high rate physical chemical treatment (HRPCT) technologies in New York City at the 26th Ward wastewater pollution control plant (WPCP) during the summer of 1999. The US Filter/Microsep Ballasted Floc Reactor™ (BFR), the Actiflo™ from Kr├╝ger Inc. and the Densadeg 4D™ from Ondeo Degremont Inc. were evaluated by Hazen and Sawyer for the New York City Department of Environmental Protection (NYCDEP). The pilot units treated primary effluent, which was used to simulate combined sewer overflow (CSO) quality due to the limited pilot period, the difficulties in predicting wet weather events, and the ability to staff the units outside normal working hours. Process performance was measured in terms of effluent concentration and percent removal for TSS and BOD5 as well as time to achieve full performance after start-up (start-up time).

Pilot testing was successful and showed that HRPCT is a compact technology that would be well suited for the treatment of CSO. All units performed well when operating was optimized, removing between 69% and 84% of TSS on average. In addition, testing provided information on hydraulic loading, chemical dosage rates, recirculation rates, ballast dosage rate, operating ranges, as well as time to full performance after start-up and sludge quality. Due to short testing period and scale up issues with the pilot test, some operational aspects require further evaluated before proceeding to full-scale design. NYCDEP is currently designing a full scale HRPCT demonstration facility to further evaluate the technology.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864703784640523

Publication date: January 1, 2003

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites
wef/wefproc/2003/00002003/00000008/art00032
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more