| Autor: |
Iranpour R; City of Los Angeles Bureau of Sanitation, Hyperion Treatment Plant, 12000 Vista del Mar, Playa del Rey, CA 90293, USA. rezairanpo@aol.com, Palacios R, Cox HH, Abkian V |
| Jazyk: |
angličtina |
| Zdroj: |
Water science and technology : a journal of the International Association on Water Pollution Research [Water Sci Technol] 2005; Vol. 52 (1-2), pp. 283-8. |
| Abstrakt: |
Fecal coliform recurrence has been observed at the City of Los Angeles Hyperion Treatment Plant during pilot-scale experiments with a designated thermophilic battery of six anaerobic digesters, while other digesters were still at a mesophilic temperature. Several lab and full-scale experiments indicated the following possible causes of the growth/reactivation of fecal coliforms in post-digestion: a) contamination of thermophilically digested biosolids with mesophilically digested biosolids; b) a large drop in the biosolids temperature between the centrifuges and silos, which could have allowed the reactivation and/or growth of fecal coliforms. These were resolved by the full plant conversion to thermophilic anaerobic digestion and design modifications of the post-digestion train. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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