Ammonia-oxidizing bacteria in a chloraminated distribution system: seasonal occurrence, distribution and disinfection resistance
نویسندگان
چکیده
منابع مشابه
Ammonia-oxidizing bacteria in a chloraminated distribution system: seasonal occurrence, distribution and disinfection resistance.
Nitrification in chloraminated drinking water can have a number of adverse effects on water quality, including a loss of total chlorine and ammonia-N and an increase in the concentration of heterotrophic plate count bacteria and nitrite. To understand how nitrification develops, a study was conducted to examine the factors that influence the occurrence of ammonia-oxidizing bacteria (AOB) in a c...
متن کاملAmmonia- and nitrite-oxidizing bacterial communities in a pilot-scale chloraminated drinking water distribution system.
Nitrification in drinking water distribution systems is a common operational problem for many utilities that use chloramines for secondary disinfection. The diversity of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in the distribution systems of a pilot-scale chloraminated drinking water treatment system was characterized using terminal restriction fragment length polym...
متن کاملSeasonal change in vertical distribution of ammonia-oxidizing archaea and bacteria and their nitrification in temperate forest soil.
Seasonal change in the vertical distribution of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in temperate forest soil was examined from March 2008 to January 2009 by quantitative PCR of the amoA genes. Abundances of AOA amoA genes (ranging from 2.0×10(8) to 1.2×10(9) copies per gram dry soil) were significantly higher than those of AOB amoA genes (1.9×10(5) to 1.7×10(7) ...
متن کاملDiversity of nitrifying bacteria in full-scale chloraminated distribution systems.
Chloramination for secondary disinfection of drinking water often promotes the growth of nitrifying bacteria in the distribution system due to the ammonia introduced by chloramine formation and decay. This study involved the application of molecular biology techniques to explore the types of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) present in several full-scale chlo...
متن کاملSeasonal and vertical distribution of putative ammonia-oxidizing thaumarchaeotal populations in an oligotrophic lake
The discovery of Archaea carrying an amoA gene coding for the A-subunit of ammonia monooxygenase gave a boost to studies aimed at detecting this gene under diverse conditions. Despite numerous studies describing the archaeal amoA gene abundance and richness in different habitats, the understanding of the freshwater ecology of potentially 5 archaeal ammonia-oxidizers, recently positioned in the ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1990
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.56.2.451-462.1990