EFFICIENCY OF AEROBIC DIGESTER FOR SLUDGE STABILIZATION IN SERKAN CITY SEWAGE TREATMENT PLANT

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FARZADKIA M.; NORIEH N.

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Journal: Avicenna Journal of Clinical Medicine Year:2004 | Volume:10 | Issue:4 Page(s): 31-37

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Title

EFFICIENCY OF AEROBIC DIGESTER FOR SLUDGE STABILIZATION IN SERKAN CITY SEWAGE TREATMENT PLANT

Author(s)

FARZADKIA M. | NORIEH N. | Issue Writer Certificate

Keywords

AEROBIC DIGESTIONQ4

SEWAGE TREATMENT PLANTQ4

SLUDGE STABILIZATIONQ4

Abstract

AEROBIC DIGESTION is commonly used at small plants to stabilize the organic matter in the sludge. The objective of this research was study on the efficiency of the aerobic digester for stabilization of disposal sludge from Serkan city SEWAGE TREATMENT PLANT.This study was conducted in four stages over seven months from July 2001 to March 2002. AEROBIC DIGESTION of sludge was accomplished in the bench scale with 30-liter volume on the environmental health laboratory of Hamadan Medical Sciences University. In each stage, a sample of disposal sludge from SEWAGE TREATMENT PLANT was analyzed firstly, then a number of sludge samples from bioreactor were considered for 3 weeks. Sludge samples were tested for stabilization and reuse indexes such as: the ratio of volatile solids to total solids (VS/TS), decreasing percent of volatile solids, specific oxygen uptake ratio (SOUR), total and fecal coliform (TC and FC) number. The results showed that the average amounts of VS/TS ratio, SOUR and FC density in disposal sludge of SEWAGE TREATMENT PLANT were 0.754, 3.395 and 1.93 108 respectively. The amounts of SLUDGE STABILIZATION indexes in bioreactor were 60% for VS/TS ratio after 15 days, 2 mgo2/gr.vs.h for SOUR after 17 days and 40% decrease of VS after 11 days. Also, the average of FC density in bioreactor sludge was 1.08 × 106 after 22 days. These result indicated that the disposal sludge from Serkan SEWAGE TREATMENT PLANT was raw and destabilized and aerobic digester could stabilized these, after 17 days. In spite of, the maximum level of microbial quality of digested sludge was in class B of USEPA regulation after 22 days. Therefore, the digested sludge may be used for reconditioning the poor soil or forest areas, but never should be used as a fertilizer for the agriculture.

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APA: Copy

FARZADKIA, M., & NORIEH, N.. (2004). EFFICIENCY OF AEROBIC DIGESTER FOR SLUDGE STABILIZATION IN SERKAN CITY SEWAGE TREATMENT PLANT. AVICENNA JOURNAL OF CLINICAL MEDICINE (SCIENTIFIC JOURNAL OF HAMADAN UNIVERSITY OF MEDICAL SCIENCES AND HEALTH SERVICES), 10(4), 31-37. SID. https://sid.ir/paper/17578/en

Vancouver: Copy

FARZADKIA M., NORIEH N.. EFFICIENCY OF AEROBIC DIGESTER FOR SLUDGE STABILIZATION IN SERKAN CITY SEWAGE TREATMENT PLANT. AVICENNA JOURNAL OF CLINICAL MEDICINE (SCIENTIFIC JOURNAL OF HAMADAN UNIVERSITY OF MEDICAL SCIENCES AND HEALTH SERVICES)[Internet]. 2004;10(4):31-37. Available from: https://sid.ir/paper/17578/en

IEEE: Copy

M. FARZADKIA, and N. NORIEH, “EFFICIENCY OF AEROBIC DIGESTER FOR SLUDGE STABILIZATION IN SERKAN CITY SEWAGE TREATMENT PLANT,” AVICENNA JOURNAL OF CLINICAL MEDICINE (SCIENTIFIC JOURNAL OF HAMADAN UNIVERSITY OF MEDICAL SCIENCES AND HEALTH SERVICES), vol. 10, no. 4, pp. 31–37, 2004, [Online]. Available: https://sid.ir/paper/17578/en

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