Analysis of up-flow aerated biological activated carbon filter technology in drinking water treatment

2013 ◽  
Vol 34 (16) ◽  
pp. 2345-2351 ◽  
Author(s):  
Shaoming Lu ◽  
Jincui Liu ◽  
Shaowen Li ◽  
Elizabeth Biney
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Biological Activated Carbon ◽  
Activated Carbon Filter ◽  
Biological Activated Carbon Filter ◽  
Carbon Filter

scholarly journals Pesticide removals in the nitrifying expanded-bed filter at drinking water treatment plant

2020 ◽  
Vol 15 (1) ◽  
pp. 1-13
Author(s):  
Nguyet Thi-Minh Dao ◽  
The-Anh Nguyen ◽  
Viet-Anh Nguyen ◽  
Mitsuharu Terashima ◽  
Hidenari Yasui
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Water Treatment ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Cost Effective ◽  
Water Treatment Plant ◽  
Field Analysis ◽  
Expanded Bed ◽  
Biological Activated Carbon

The occurrence of pesticides even at low concentrations in drinking water sources might induce potential risks to public health. This study aimed to investigate the removal mechanisms of eight pesticides by the nitrifying expanded-bed filter using biological activated carbon media at the pretreatment of a drinking water plant. The field analysis demonstrated that four pesticides Flutolanil, Buprofezin, Chlorpyrifos, and Fenobucard, were removed at 82%, 55%, 54%, and 52% respectively, while others were not significantly removed. Under controlled laboratory conditions with continuous and batch experiments, the adsorption onto the biological activated carbon media was demonstrated to be the main removal pathway of the pesticides. The contribution of microorganisms to the pesticide removals was rather limited. The pesticide removals observed in the field reactor was speculated to be the adsorption on the suspended solids presented in the influent water. The obtained results highlighted the need to apply a more efficient and cost-effective technology to remove the pesticide in the drinking water treatment process. Keywords: biological activated carbon; drinking water treatment; nitrifying expanded-bed filter; pesticide removal.

Growth competition between ammonia-oxidizing archaea and bacteria for ammonium and urea in a biological activated carbon filter used for drinking water treatment

2019 ◽  
Vol 5 (2) ◽  
pp. 231-238 ◽  
Author(s):  
Jia Niu ◽  
Ikuro Kasuga ◽  
Futoshi Kurisu ◽  
Hiroaki Furumai
Keyword(s):  
Time Course ◽  
Drinking Water Treatment ◽  
Niche Separation ◽  
Autotrophic Growth ◽  
Biological Activated Carbon ◽  
Ammonia Oxidizing Archaea ◽  
Activated Carbon Filter ◽  
Growth Activity ◽  
Biological Activated Carbon Filter ◽  
Carbon Filter

By applying time-course DNA-SIP, the substrate niche separation of AOA and AOB was revealed. AOA had higher autotrophic growth activity for a low concentration of ammonium, while AOB directly incorporated and hydrolyzed urea.

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