In this study, we introduced enzymatic pretreatment method, together with ozone treatment for sludge digestion. We optimized the amount of enzyme and ozone, respectively for the successful sludge pretreatment. As a result, we found that as more enzyme is used, higher sludge hydrolysis efficiency was obtained. When we treated sludge by ozone ranging from 0.01 g O3/g SS to 0.04 g O3/g SS without enzyme treatment, 0.04 g O3/g SS showed the highest increase of SCOD. Meanwhile, when protease was used together with the same ozone dosage ranges, 0.03 g O3/g SS ozonation resulted in the highest increase of SCOD. The sludge pretreatment was optimized by controlling the amount of enzyme and ozone.
|Number of pages||6|
|Journal||Korean Journal of Microbiology and Biotechnology|
|Publication status||Published - 2004 Jun 1|
ASJC Scopus subject areas
- Applied Microbiology and Biotechnology