Abstract：
:In this study, the impacts of reused and sucrose-decorated pumice as bulking agents on the composting of sewage sludge were evaluated in the lab-scale reactor. The variations of temperature, pH, NH3 and CO2 emission rate, moisture content (MC), volatile solid, dissolved organic carbon, C/N and the water absorption characteristics of pumice were detected during the 25days composting. The MC of pumice achieved 65.23% of the 24h water absorptivity within the first 2h at the mass ratio of 0.6:1 (pumice:sewage sludge). Reused pumice increased 23.68% of CO2 production and reduced 21.25% of NH3 emission. The sucrose-decorated pumice reduced 43.37% of nitrogen loss. These results suggested that adding pumice and sucrose-decorated pumice in sludge composting matrix could not only adjust the MC of materials, but also improve the degradation of organic matters and reduce nitrogen loss.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wu C,Li W,Wang K,Li Ydoi
10.1016/j.biortech.2015.03.104subject
Has Abstractpub_date
2015-08-01 00:00:00pages
516-21eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00436-8journal_volume
190pub_type
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