سال انتشار: ۱۳۸۸

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: ۶

نویسنده(ها):

E Safari – Faculty of Environment, University of Tehran, P.O.Box 14155-6135, Tehran, Iran
M Jalili Ghazizade – Faculty of Environment, University of Tehran, P.O.Box 14155-6135, Tehran, Iran

چکیده:

Utilizing of biological methods in leachate treatment has high efficiency especially for organic matters removing. So investigation of removable amount of Chemical Oxygen Demand (COD) or Biological Oxygen Demand (BOD) which are leachate organic pollutants indicators is necessary. In this research leachate samples of Mashhad’s landfill and compost facility were analyzed for determining of aerobic treatability. For this purpose, BOD test method was used to estimate aerobic reaction kinetic. The test shows that the average of aerobic reaction kinetic coefficient for landfill and compost facility leachate is 0.216 and 0.28 per day respectively. Results reveal that decomposition rate of landfill leachate with low BOD concentration is less than compost facility leachate. Thus findings indicate that high efficiency aerobic methods (e. g. activated sludge and aerobic filters) can reduce the leachate organic load (especially for old landfill leachate) to delimited amount and then complimentary processes (e. g. physical methods like membrane processes) must be employed for leachate treatment.