Abstract：
:Hygienic fecal treatment in resource-oriented sanitation (ROS) systems is an important concern. Although the addition of nitrifying microorganisms is a sustainable fecal treatment method in ROS systems, it is essential to examine the cleanliness of this method. In this study, we investigated the fate of fecal indicators in source-separated fecal samples through tracking Escherichia coli and total coliforms. The effects of adding different amounts of Nitrosomonas europaea bio-seed, along with a constant amount of Nitrobacter winogradskyi bio-seed, were studied. In intact feces samples, the pathogen population underwent an initial increase, followed by a slight decrease, and eventually became constant. Although the addition of nitrifying microorganisms initially enhanced the pathogen growth rate, it caused the reduction process to become more efficient in the long-term. In addition to a constant concentration of 10,000 cells of N. winogradskyi per 1 g feces, a minimum amount of 3000 and 7000 cells of N. europaea per 1 g feces could completely remove E. coli and total coliforms, respectively, in less than 25 days. Increasing the amount of bio-seeds added can further reduce the time required for total pathogen removal.
journal_name
Int J Environ Res Public Healthauthors
Hashemi S,Han M,Namkung Edoi
10.3390/ijerph15010164subject
Has Abstractpub_date
2018-01-20 00:00:00issue
1eissn
1661-7827issn
1660-4601pii
ijerph15010164journal_volume
15pub_type
杂志文章abstract：:Standing desks have proven to be effective and viable solutions to combat sedentary behavior among children during the school day in studies around the world. However, little is known regarding the potential of such interventions on cognitive outcomes in children over time. The purpose of this pilot study was to deter...
journal_title：International journal of environmental research and public health
pub_type： 临床试验,杂志文章
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journal_title：International journal of environmental research and public health
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journal_title：International journal of environmental research and public health
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journal_title：International journal of environmental research and public health
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更新日期：2016-11-07 00:00:00
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更新日期：2013-07-24 00:00:00
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abstract：BACKGROUND:In most of the cases regarding children, factitious disorders (FDs) are intentionally produced by parents. Less attention is paid to FDs in which a child or adolescent intentionally induces or falsifies the disease to attain a patient's role. CASE PRESENTATION:A 13-year-old immigrated and adopted boy previo...
journal_title：International journal of environmental research and public health
pub_type：
doi：10.3390/ijerph15040627
更新日期：2018-03-29 00:00:00
