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Paper Information

Journal:   JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES   DECEMBER 2011 , Volume 21 , Number 85; Page(s) 85 To 90.
 
Paper: 

DETERMINING THE COMPOST MATURITY TIME IN BIOSOLIDS OF MUNICIPAL WASTEWATER TREATMENT PLANT

 
 
Author(s):  ALIDADI HOSSEIN, NAJAFPOOR ALI ASGHAR
 
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Abstract: 

Background and purpose: There is no specific standard on the compost maturity time of biosolids of wastewater treatment plants in Iran; therefore, the researchers made an attempt to employ different chemical and biological methods to assess the compost maturity time.
Materials and methods: In this study, the sludge was obtained from the drying beds of South Isfahan Wastewater Treatment Plant and was then mixed with sawdust and windrow type of composting was performed to stabilize the sludge. The height, width and length of windrow were 1.2, 1.5, and 2.5 m, respectively. The windrow turning was done manually for 7-10 days.
Results: The results showed that, C/N ratio after 100 days of composting reached 15.1 and the NH4/NO3 ratio decreased with increase in the time of dewatered sludge compost. The content of volatile solids decreased up to 28.8 percent with composting time and the number of fecal coliforms reached 898 MPN/gram of total solids.
Conclusion: Thus, biosolids compost in this study was mature and ready for use as an agricultural substrate after 100 days of composting.

 
Keyword(s): MATURITY, STABILITY, COMPOST, BIOSOLIDS, WASTEWATER TREATMENT PLANT
 
 
References: 
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Citations: 
 
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APA: Copy

ALIDADI, H., & NAJAFPOOR, A. (2011). DETERMINING THE COMPOST MATURITY TIME IN BIOSOLIDS OF MUNICIPAL WASTEWATER TREATMENT PLANT. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, 21(85), 85-90. https://www.sid.ir/en/journal/ViewPaper.aspx?id=277203



Vancouver: Copy

ALIDADI HOSSEIN, NAJAFPOOR ALI ASGHAR. DETERMINING THE COMPOST MATURITY TIME IN BIOSOLIDS OF MUNICIPAL WASTEWATER TREATMENT PLANT. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES. 2011 [cited 2021July23];21(85):85-90. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=277203



IEEE: Copy

ALIDADI, H., NAJAFPOOR, A., 2011. DETERMINING THE COMPOST MATURITY TIME IN BIOSOLIDS OF MUNICIPAL WASTEWATER TREATMENT PLANT. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, [online] 21(85), pp.85-90. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=277203.



 
 
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