2015
DOI: 10.12912/23920629/1832
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Improving the Gravitational Properties of Sewage Sludge by Pretreatments

Abstract: STRESZCZENIEPowstawanie osadów ściekowych jest nieuniknioną konsekwencją procesów oczyszczania ścieków, a ich unieszkodliwianie i utylizacja wymaga wiedzy, rozwiązań technologicznych i technicznych. Zastosowanie procesów wstępnej obróbki/kondycjonowania pozwala na uzyskanie poprawy własności mechanicznych osadów ścieko-wych. W ostatniej dekadzie można odnotować wiele prac badawczych z całego świata skoncentrowanych na nowych metodach kondycjonowania osadów tj. procesach dezintegracji, wśród których stosuje się… Show more

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Cited by 3 publications
(2 citation statements)
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“…After 1 hour of the process reduction of the total number of microorganisms by nearly 2 log cfu g −1 was observed (Figure 2). As a result there is a much higher settling velocity of suspensions Imhoff funnel, thereby reducing the apparent viscosity of the sludge [30][31][32]. Similarly to the effect observed by Park et al (2003) [8] in our research there was a positive correlation of settling velocity and ozone dose.…”
Section: Resultssupporting
confidence: 73%
See 1 more Smart Citation
“…After 1 hour of the process reduction of the total number of microorganisms by nearly 2 log cfu g −1 was observed (Figure 2). As a result there is a much higher settling velocity of suspensions Imhoff funnel, thereby reducing the apparent viscosity of the sludge [30][31][32]. Similarly to the effect observed by Park et al (2003) [8] in our research there was a positive correlation of settling velocity and ozone dose.…”
Section: Resultssupporting
confidence: 73%
“…Extrapolating the results of the settleability, allowed drawing conclusion that using sludge conditioning with ozone can significantly shorten the time of the sedimentation of the excess sludge in gravity densifier. As indicated in the literature ozone destroys cell membranes by lipid peroxidation and other associated processes, irreversibly changing the structure of other organic compounds [6,[32][33][34]. In addition, it also reacts with the inorganic matter that is part of the sludge.…”
Section: Resultsmentioning
confidence: 99%