Show simple item record

dc.contributor.authorQian, Jin
dc.contributor.authorWei, Li
dc.contributor.authorWu, Yaoguo
dc.contributor.authorWang, Qilin
dc.contributor.authorFu, Xiaoying
dc.contributor.authorZhang, Xiaochao
dc.contributor.authorChang, Xing
dc.contributor.authorWang, Lianlian
dc.contributor.authorPei, Xiangjun
dc.description.abstractA comparative study on denitrifying sludge granulation with different electron donors (sulfide, thiosulfate and organics) was carried out. Longer time was spent on sulfide-denitrifying granular sludge (DGS) cultivation (88 days) than thiosulfate- and organics-DGS cultivations (57 days). All the three DGS were characterized in terms of particle size distribution, sludge settling ability (indicated by sludge volume index and settling velocity), permeability (indicated by fractal dimension) and extracellular polymeric substances (EPS, including polysaccharide and protein) secretion. Sludge productions in the three DGS-reactors were also monitored. The key functional microorganisms in three granular reactors were revealed via high through-put pyrosequencing analysis. Batch tests were performed to measure the denitrification activities of each DGS, including both denitratation (NO3− → NO2−) and denitritation (NO2− → N2). We found that thiosulfate-driven denitrifying sludge granulation (TDDSG) should be the most efficient and compact technology for effective BNR in municipal wastewater treatment. The findings of this study suggests the TDDSG could further increase the nitrogen removal potential in an enhanced sulfur cycle-driven bioprocess for co-treatment of wet flue gas desulfurization wastes with fresh sewage depending on three short-cut biological reactions, including: 1) short-cut biological sulfur reduction (SO42−/SO32− → S2O32−); 2) thiosulfate-driven denitritation (S2O32− + NO2− → SO42− + N2↑); and 3) nitritation (NH4+ + O2 → NO2−).
dc.subject.fieldofresearchEnvironmentally sustainable engineering
dc.subject.fieldofresearchGlobal and planetary environmental engineering
dc.titleA comparative study on denitrifying sludge granulation with different electron donors: Sulfide, thiosulfate and organics
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Qilin

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record