Skip to main content


The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


This paper is a compilation of experimental data obtained from studies conducted at Morgan City and Shreveport, Louisiana wastewater treatment plants by Tulane University in conjunction with Bioset, Inc. At each of the plants, a closed alkaline system is in place to treat the municipal solids. Experimental studies were conducted at the Morgan City plant to determine the optimum conditions for disinfection utilizing a closed alkaline system. The main parameters that effect disinfection include: (1) ammonia concentration, (2) exposure time, (3) temperature, (4) suspended solids content, and (5) storage time. From the data, the inactivation of helminth eggs such as Ascaris have been enhanced by 50% to 99% at temperature ranges of 35oC to 55oC as compared to the time required for pathogen inactivation related to just the time/ambient temperature phenomenon alone. In the next few years, it is expected that alkaline disinfection of biosolids will be optimized in relation to the factors stated above. Once this relationship is clearly defined and the most advantageous combination established, it would allow the development of a process that will be more energy efficient, cost effective, and be better in controlling potential odorous emissions. Also, the two locations are successfully reusing the alkaline biosolids. At the Morgan City location, the biosolids are used as fertilizer on sugar cane fields. In Shreveport, a turf grass farm is being established on site to provide additional income for the city of Shreveport along with the complete reuse of their treated biosolids.

Document Type: Research Article


Publication date: January 1, 2004

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 These proceedings are not peer reviewed.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
  • Ingenta Connect is not responsible for the content or availability of external websites

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
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