[Performance evaluation of hybrid septic tank and aerated lagoon process efficiency for landfill leachate treatment]
Journal of Zanjan University of Medical Sciences and Health Services. 2011; 19 (74): 108-120
in Persian
| IMEMR
| ID: emr-106561
ABSTRACT
In this research, landfill leachate treatment in Karaj city was investigated by a linked septic tank and aerated lagoon. At first, characteristics of the leachate were determined. Then a pilot plant with anaerobic-aerobic [Septic tank and Aerated lagoon] parts was installed and started. Results showed that Chemical Oxygen Demand [COD] removal efficiency for septic tank and subsequently to lagoon for influent COD of 19537 mg/L, were 8401 and 432 mg/L, respectively. The septic tank and aerated lagoon also operated with different flow rates and the best results for septic tank and aerated lagoon obtained in 23.6 L/day and 9.3 L/day respectively with maximum COD removal efficiency of 91.2%. According to the obtained results, the hybrid system had 90% COD removal efficiency. Therefore, leachate COD loading could be effectively removed in this system
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Water Purification
/
Biological Oxygen Demand Analysis
Language:
Persian
Journal:
J. Zanjan Univ. Med. Sci. Health Serv.
Year:
2011
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