Skip to main content

THE FIRST COMMERCIAL SUPERCRITICAL WATER OXIDATION SLUDGE PROCESSING PLANT

Buy Article:

$17.50 plus tax (Refund Policy)

Abstract:

Final disposal of sludge continues to be one of the more pressing problems for the wastewater treatment industry. The problems associated with land application, which is one of the preferred disposal methods, include health hazards, concentration of metals in soils, and competing uses for available land. Supercritical Water Oxidation (“SCWO”) provides an alternative method that addresses the health concerns associated with sludge disposal by completely converting all organic matter in the sludge to carbon dioxide, water, and other innocuous materials. A Supercritical Water Oxidation system using HydroProcessing, LLC's HydroSolids® process has been installed at Harlingen, Texas to process up to 9.8 dry tons per day of sludge. This system is the largest Supercritical Water Oxidation system in the world, and the only one built specifically to process sludge. Shakeout and startup of Unit 1 of two SCWO units has been accomplished over the last 5 months. The unit achieves greater than 99.9% destruction of COD in a sludge thickened to 6–8 wt.% solids. Harlingen Waterworks System estimates that the HydroSolids system will cost less than other alternatives such as Autothermal Thermophilic Aerobic Digestion and more traditional forms of digestion that still require dewatering and final disposal. The Waterworks plans to generate income from the sale of energy in the form of hot water and the use of carbon dioxide from the HydroSolids process for neutralization of high pH industrial effluent. The Waterworks also expects to generate income from the treatment of septage and grease trap wastes.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702785302447

Publication date: January 1, 2002

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 These proceedings are not peer reviewed.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/2002/00002002/00000003/art00046
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