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Sludge treatment by ozonation--evaluation of full-scale results.
Water Sci Technol. 2004; 49(4):247-53.WS

Abstract

Ozonation of industrial and sewage sludge is a suitable process for minimizing the sludge production of activated sludge processes. The ozonation has the advantage for complete oxidation of volatile suspended solids (VSS) of combining partial sludge oxidation with subsequent biological oxidation. This paper describes the evaluation of two full-scale sewage sludge ozonation investigations for subsequent aerobic stabilisation as well as for subsequent anaerobic stabilisation compared to different sludge treatment processes. For both the anaerobic and aerobic application, sludge liquefying by release of 110 and 160 mg COD per g total suspended solids (TSS) has been reached at specific ozone consumption of 0.03 and 0.06 kg O3 per kg TSS, respectively. The subsequent biological treatment has reached a mass reduction of 20-35% for the aerobic and 19% for the anaerobic stabilisation. For both applications the specific ozone consumption was about 0.05 kgO3 per kg TSS to be treated. A comparison with mechanical and thermo-chemical sludge mass reduction methods shows that the mass reduction potential of ozonation is presently higher. Even though costs for sludge ozonation are higher compared to other methods, the optimisation potential for cost reduction of sludge ozonation is obvious from the results presented in this paper.

Authors+Show Affiliations

Sievers M
CUTEC-Institut GmbH (Clausthal Environment Technology Institute), Leibnizstr. 21+23, 38678 Clausthal-Zellerfeld, Germany. michael.sievers@cutec.de
Ried A
No affiliation info available
Koll R
No affiliation info available

MeSH

Bacteria, AerobicBacteria, AnaerobicBioreactorsCosts and Cost AnalysisIndustrial WasteOxidants, PhotochemicalOzoneSewageWaste Disposal, FluidWater Purification

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

15077979

Citation

Sievers, M, et al. "Sludge Treatment By Ozonation--evaluation of Full-scale Results." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 49, no. 4, 2004, pp. 247-53.
Sievers M, Ried A, Koll R. Sludge treatment by ozonation--evaluation of full-scale results. Water Sci Technol. 2004;49(4):247-53.
Sievers, M., Ried, A., & Koll, R. (2004). Sludge treatment by ozonation--evaluation of full-scale results. Water Science and Technology : a Journal of the International Association On Water Pollution Research, 49(4), 247-53.
Sievers M, Ried A, Koll R. Sludge Treatment By Ozonation--evaluation of Full-scale Results. Water Sci Technol. 2004;49(4):247-53. PubMed PMID: 15077979.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sludge treatment by ozonation--evaluation of full-scale results. AU - Sievers,M, AU - Ried,A, AU - Koll,R, PY - 2004/4/14/pubmed PY - 2004/7/28/medline PY - 2004/4/14/entrez SP - 247 EP - 53 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 49 IS - 4 N2 - Ozonation of industrial and sewage sludge is a suitable process for minimizing the sludge production of activated sludge processes. The ozonation has the advantage for complete oxidation of volatile suspended solids (VSS) of combining partial sludge oxidation with subsequent biological oxidation. This paper describes the evaluation of two full-scale sewage sludge ozonation investigations for subsequent aerobic stabilisation as well as for subsequent anaerobic stabilisation compared to different sludge treatment processes. For both the anaerobic and aerobic application, sludge liquefying by release of 110 and 160 mg COD per g total suspended solids (TSS) has been reached at specific ozone consumption of 0.03 and 0.06 kg O3 per kg TSS, respectively. The subsequent biological treatment has reached a mass reduction of 20-35% for the aerobic and 19% for the anaerobic stabilisation. For both applications the specific ozone consumption was about 0.05 kgO3 per kg TSS to be treated. A comparison with mechanical and thermo-chemical sludge mass reduction methods shows that the mass reduction potential of ozonation is presently higher. Even though costs for sludge ozonation are higher compared to other methods, the optimisation potential for cost reduction of sludge ozonation is obvious from the results presented in this paper. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/15077979/Sludge_treatment_by_ozonation__evaluation_of_full_scale_results_ DB - PRIME DP - Unbound Medicine ER -