Nano-spatially confined Pd–Cu bimetals in porous N-doped carbon as an electrocatalyst for selective denitrification

2020 ◽  
Vol 8 (19) ◽  
pp. 9545-9553 ◽  
Author(s):  
Tianhang Gu ◽  
Wei Teng ◽  
Nan Bai ◽  
Zehan Chen ◽  
Jianwei Fan ◽  
...  
Keyword(s):  
Drinking Water ◽  
Cu Nanoparticles ◽  
Drinking Water Standards ◽  
Neutral Electrolyte

Nanodenitrification is achieved by bimetallic Pd–Cu nanoparticles encapsulated in porous N-doped carbon as electrocatalysts, with reduced nitrate below drinking water standards and a N2 selectivity as high as 83% in a neutral electrolyte.

Synthesis of diatom–FeOx composite for removing trace arsenic to meet drinking water standards

2015 ◽  
Vol 457 ◽  
pp. 169-173 ◽  
Author(s):  
Megha Thakkar ◽  
Varunpreet Randhawa ◽  
Somenath Mitra ◽  
Liping Wei
Keyword(s):  
Drinking Water ◽  
Drinking Water Standards

Microbiological Quality Control in the Provision of Safe Drinking Water

1989 ◽  
Vol 21 (6-7) ◽  
pp. 559-566 ◽  
Author(s):  
C. R. Hayes
Keyword(s):  
Quality Control ◽  
Drinking Water ◽  
European Commission ◽  
Microbiological Quality ◽  
Safe Drinking Water ◽  
Treatment Practice ◽  
Drinking Water Standards ◽  
Control Procedures ◽  
Microbiological Quality Control

The legislation from the European Commission and various other guidelines are discussed in the context of microbiological standards for drinking water. Difficulties in applying these standards are identified and reference is given to the quality control procedures adopted by Anglian Water. Pressures to achieve other drinking water standards, especially trihalomethanes, and the possible need to achieve higher microbiological quality objectives than those regulated currently, could lead to major changes in UK treatment practice.

The U.S. Public Health Service Drinking Water Standards

1943 ◽  
Vol 35 (11) ◽  
pp. 1409-1436
Author(s):  
F. H. Waring ◽  
G. D. Norcom ◽  
R. F. Goudey ◽  
C. K. Calvert ◽  
C. R. Cox ◽  
...  
Keyword(s):  
Public Health ◽  
Drinking Water ◽  
Health Service ◽  
Public Health Service ◽  
Drinking Water Standards ◽  
The U.S

Presence of organochlorine contaminants in bottled drinking water from Mexico City

2012 ◽  
Vol 12 (4) ◽  
pp. 470-479 ◽  
Author(s):  
Rey Gutiérrez ◽  
Salvador Vega ◽  
Rutilio Ortiz ◽  
Beatriz Schettino
Keyword(s):  
Drinking Water ◽  
Organochlorine Pesticides ◽  
Mexico City ◽  
Organic Contaminants ◽  
Monitoring Program ◽  
World Health ◽  
Drinking Water Standards ◽  
Toxicological Effects ◽  
Bottled Drinking Water ◽  
Organochlorine Contaminants

Concentrations of organic contaminants (organochlorine pesticides and biphenyls) were studied in bottled drinking water (BDW) from Mexico City where consumption is high and considered a healthy alternative to the potable water network. The results of 36 samples (1.5 L and 19 L presentations, 18 samples of each) showed the presence of seven pesticides (HCH-hexachlorocyclohexane isomers, heptachlor, aldrin and p,p'-DDE'-dichlorodiphenyldichloroethylene) and some polychlorinated biphenyls-PCBs (28, 58 and 101). The concentrations were compared with the drinking water standards set by NOM-127-SSA1–1994, USEPA (United States Environment Protection Agency) and the World Health Organization (WHO) for pesticides and NOM-127-SSA1–1994 for biphenyls. The concentrations of the majority of organochlorine pesticides were within drinking water standards (0.01 μg L−1) except for β-HCH in BDW samples 3, 5 and 6 with values of 0.121, 0.136 and 0.192 μg L−1, respectively. The total PCBs concentration in BDW did not represent any hazard to human health, according to Mexican regulations, which establish a maximum permissible level of 0.50 μg L−1. A BDW quality monitoring program is recommended and further research on ways of reducing the presence of organochlorine contaminants to prevent bioaccumulation and toxicological effects over population with emphasis in those that with constant consumption.

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