In:
Water Environment Research, Wiley, Vol. 73, No. 4 ( 2001-07), p. 404-408
Kurzfassung:
This study examined the feasibility of applying an upflow anaerobic sludge blanket (UASB) reactor to treat septage. The UASB reactor was operated at 35 ± 1 °C, and the substrate septage had a total solids (TS) concentration of 13 200 mg/L. Reactor operation was initiated at a hydraulic residence time (HRT) of 10 days; thereafter, the HRT was shortened stepwise to 1.5 days. The TS, volatile solids (VS), and organic loading rates were 1.4 to 9.4 kg TS/m 3 ·d, 5.6 to 8.5 kg VS/m 3 ·d, and 1.1 to 6.7 kg chemical oxygen demand (COD)/m 3 ·d, respectively. At the organic loading rate of 6.7 kg COD/m 3 ·d (the HRT of 1.5 days), the total COD, soluble COD, and TS and VS removal efficiencies were 68, 74, and 66 and 73%, respectively. The average granule diameter and volatile suspended solids concentration were approximately 0.89 mm and 32 000 mg/L, respectively. Based on results obtained from 7 months of constant methane production and removal efficiencies, which are comparable to values previously reported in the literature for wastewater, it was concluded that a UASB reactor can successfully treat septage.
Materialart:
Online-Ressource
ISSN:
1061-4303
,
1554-7531
DOI:
10.2175/106143001X139443
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2001
ZDB Id:
1098976-6
ZDB Id:
2051010-X
