کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4474306 | 1315153 | 2006 | 6 صفحه PDF | دانلود رایگان |
The viability of anaerobic digestion of sludge from a MSW landfill leachate treatment plant, with COD values ranging between 15,000 and 19,400 mg O2 dm−3, in an upflow anaerobic sludge blanket reactor was studied. The reactor employed had a useful capacity of 9 l, operating at mesophilic temperature.Start-up of the reactor was carried out in different steps, beginning with diluted sludge and progressively increasing the amount of sludge fed into the reactor. The study was carried out over a period of 7 months. Different amounts of methanol were added to the feed, ranging between 6.75 and 1 cm3 dm−3 of feed in order to favour the growth of methanogenic flora.The achieved biodegradation of the sludge using an upflow anaerobic sludge blanket Reactor was very high for an HRT of 9 days, obtaining decreases in COD of 84–87% by the end of the process. Purging of the digested sludge represented ≈16% of the volume of the treated sludge.
Journal: Waste Management - Volume 26, Issue 8, 2006, Pages 869–874