Dong Yiqie, Lu Haijun, Zhang Qian, Liu Xiaoyun. THE POLLUTANT RELEASE OF LEACHATE AND THERMAL EFFECT OFMUNICIPAL SLUDGE UNDER ANAEROBIC DIGESTION[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 49-53. doi: 10.13205/j.hjgc.201506011
Citation:
Dong Yiqie, Lu Haijun, Zhang Qian, Liu Xiaoyun. THE POLLUTANT RELEASE OF LEACHATE AND THERMAL EFFECT OF
MUNICIPAL SLUDGE UNDER ANAEROBIC DIGESTION[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 49-53. doi: 10.13205/j.hjgc.201506011
Dong Yiqie, Lu Haijun, Zhang Qian, Liu Xiaoyun. THE POLLUTANT RELEASE OF LEACHATE AND THERMAL EFFECT OFMUNICIPAL SLUDGE UNDER ANAEROBIC DIGESTION[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 49-53. doi: 10.13205/j.hjgc.201506011
Citation:
Dong Yiqie, Lu Haijun, Zhang Qian, Liu Xiaoyun. THE POLLUTANT RELEASE OF LEACHATE AND THERMAL EFFECT OF
MUNICIPAL SLUDGE UNDER ANAEROBIC DIGESTION[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 49-53. doi: 10.13205/j.hjgc.201506011
In order to study the rule of pollution parameter of water quality by municipal sludge leachate changed over times
and temperatures，and the thermal effect of sludge under anaerobic digestion，the paper determinated the change of pH value，
contents of dissolved oxygen ( DO) ，total nitrogen ( TN) and total organic carbon ( TOC) of sludge leachate under anaerobic
digestion at 30 ℃，45 ℃ and 60 ℃ separately，and also analyzed the effect of leachate pollution parameter． The curve of TGDTA
was drawn by thermogravimetry and differential thermal tests under the temperature of 45 ℃， and the thermal effect was
discussed． pH of sludge leachate was 7. 50 at begining，as the anaerobic fermentation in 30 ℃，the pH increased by 25. 7%
and DO，TN，TOC decreased by 90. 0%，90. 4%， 74. 9% separately． The higer ambient temperature was，the faster reaction
rate was． By the curve of TG-DTA，the loss of weight was caused by water desorption and organic burning，along with
absorption and release of heat．
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