Skip to main content

PUMPED CONVEYANCE OF BIOSOLIDS: THEORETICAL MODELING AND EMPIRICAL DATA TO SUPPORT SYSTEM DESIGN CRITERIA

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The City of Los Angeles’ Department of Public Works has recently completed the construction of a replacement conveyance and storage system for handling dewatered sludge at the Hyperion Treatment Plant.

This 12 million capital improvement project utilizes an innovative application of hydraulically driven reciprocating piston pumps (HDRPP) and pressure pipe. The new conveyance system, which replaces 20-year old belt and screw conveyors, is fully contained and completely automated.

With the increased emphasis on improving the safety and economy of the beneficial reuse of biosolids, publicly owned treatment works (POTWs) are being forced to improve on solids handling methods. The more stringent environmental and regulatory requirements have now made the fully contained pumped biosolids conveyance system a viable and practical option for large and small municipalities.

Process designers, operators and equipment mechanics must have a good understanding of how this type of system may work for them and engineers need verifiable criteria for designing biosolids pumping systems.

This City's design efforts for the replacement conveyance system included an extensive industry survey, computer modeling and full-scale pilot testing. Theoretical design criteria can now be verified using empirical data collected over the past several years of full scale operation.

Specialty equipment and control logic incorporated into the Hyperion design are based on typical process applications and can easily be incorporated into systems at many POWT's. Construction and operating experience on this project can assist POTW owners and designers in evaluating the feasibility of installing similar systems at their facilities. Economic analysis, including capital, operating and maintenance costs based on real data, from an installation that operates under high loading rates, 30% solids content biosolids and near continuous operation provide valuable information and a case study on this relatively unique process improvement.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864702785302348

Publication date: 2002-01-01

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.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect 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