KINETICS OF PATHOGEN DESTRUCTION DURING STORAGE OF DEWATERED BIOSOLIDS
KINETICS OF PATHOGEN DESTRUCTION DURING STORAGE OF DEWATERED BIOSOLIDS
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DOI：
10.2175/106143095x131286
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发表时间：
1995-03-01
影响因子：
3.1
通讯作者：
SORENSEN, DL
中科院分区：
文献类型：
--
作者：
AHMED, AU;SORENSEN, DL
在消化和脱水的废水处理生物固体的储存过程中确定病原体破坏的动力学，以获得温度和生物固体储存持续时间之间的关系。接种有鼠伤寒沙门氏菌、小肠结肠炎耶尔森氏菌、空肠弯曲杆菌、噬菌体f2、脊髓灰质炎病毒和猪蛔虫卵的生物固体在5 ℃、22 ℃、38 ℃和49.5 ℃下在有氧和厌氧条件下孵育长达62天。在储存的生物固体中的病原体的破坏发生在所有的温度检查，但是，随着温度的升高，速率增加。在所有研究温度下，好氧或厌氧条件下对病原体的破坏没有显着差异。在50 ℃时，S.鼠伤寒沙门氏菌（Y. typhimurium）、鼠伤寒沙门氏菌（Y.小肠结肠炎、噬菌体f2、脊髓灰质炎病毒和A.猪卵估计每天分别减少1.13、1.10、1.54、0.81和0.21 log（10）。
The kinetics of pathogen destruction were determined during storage of digested and dewatered wastewater treatment biosolids to obtain relationships between temperature and duration of biosolids storage. Biosolids, seeded with Salmonella typhimurium, Yersinia enterocolitica, Campylobacter jejuni, bacteriophage f2, poliovirus, and Ascaris suum eggs were incubated at 5 degrees, 22 degrees, 38 degrees, and 49.5 degrees C, under both aerobic and anaerobic conditions for up to 62 days. Destruction of pathogens in stored biosolids occurred at all temperatures examined; however, rates increased with increasing temperature. There was no significant difference between the destruction of pathogens under aerobic or anaerobic conditions at all temperatures studied. At 50 degrees C, the decay rate of S. typhimurium, Y. enterocolitica, bacteriophage f2, poliovirus, and A. suum eggs was estimated to be 1.13, 1.10, 1.54, 0.81, and 0.21 log(10) reductions per day, respectively.