ANAEROBIC CO-DIGESTION OF SEWAGE-SLUDGE AND CONCENTRATED SOLUBLE WASTEWATERS

Citation
C. Carrieri et al., ANAEROBIC CO-DIGESTION OF SEWAGE-SLUDGE AND CONCENTRATED SOLUBLE WASTEWATERS, Water science and technology, 28(2), 1993, pp. 187-197
Citations number
15
Categorie Soggetti
Water Resources","Environmental Sciences","Engineering, Civil
ISSN journal
02731223
Volume
28
Issue
2
Year of publication
1993
Pages
187 - 197
Database
ISI
SICI code
0273-1223(1993)28:2<187:ACOSAC>2.0.ZU;2-V
Abstract
The anaerobic treatment of sewage sludges (primary and secondary) mixe d to concentrated soluble wastes (olive mill effluents, cheese whey an d landfill leacheate) in conventional once-through and anaerobic conta ct digesters, has been investigated in laboratory scale reactors. Expe rimental results indicate that it is possible to increase appreciably (100 %) the volumetric loading rate of sludge digesters (anaerobic con tact) by addition of soluble substrates and keep stable operating cond itions. The proposed treatment is economically very attractive if the load due to high strength wastewaters is of the same magnitude as the sludge load, as it does not require additional reactor volume.