scholarly journals Effects of coconut granular activated carbon pretreatment on membrane filtration in a gravitational driven process to improve drinking water quality

2011 ◽  
Vol 33 (6) ◽  
pp. 711-716 ◽  
Author(s):  
Flávia Vieira da Silva ◽  
Natália Ueda Yamaguchi ◽  
Gilselaine Afonso Lovato ◽  
Fernando Alves da Silva ◽  
Miria Hespanhol Miranda Reis ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Activated Carbon ◽  
Membrane Filtration ◽  
Granular Activated Carbon ◽  
Drinking Water Quality

Biodegradation and attenuation of MIB and 2,4-D in drinking water biologically active sand and activated carbon filters

2019 ◽  
Vol 5 (5) ◽  
pp. 849-860 ◽  
Author(s):  
Kyle K. Shimabuku ◽  
Thomas L. Zearley ◽  
Katherine S. Dowdell ◽  
R. Scott Summers
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Biologically Active ◽  
Operational Conditions ◽  
Filter Performance ◽  
Contaminant Control ◽  
Variable Water ◽  
Trace Organic

Biologically acclimated sand and granular activated carbon (GAC) filter performance for trace organic contaminant control is compared under variable water quality and operational conditions.

Water Quality 21 research programme for water supplies in The Netherlands

2004 ◽  
Vol 4 (5-6) ◽  
pp. 181-188 ◽  
Author(s):  
J.C. van Dijk ◽  
D. van der Kooij
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Membrane Filtration ◽  
Tap Water ◽  
Distribution Network ◽  
Research Programme ◽  
Drinking Water Quality ◽  
Total System ◽  
Water Research

The Dutch water companies have commissioned an ambitious 4 year research programme in pursuit of an impeccable drinking water quality, called Quality 21 (Quality for the 21st century). The Dutch approach has always been to safeguard drinking water quality from source to tap by excellent design, operation and research. This drinking water is generally distributed without a disinfectant residual. The Dutch consumers appreciate this concept and have a high confidence in the quality of tap water. The new research programme aims at providing the scientific foundation for future decisions on quality goals and the advantages and limitations of modern water treatment technology, such as membrane filtration and UV/AOP. The goals are to achieve a robust and reliable drinking water infrastructure that will guarantee an impeccable water quality at the tap at all times, also in the future when new threats may emerge. The programme includes studies on water quality goals and total system approach, and experimental research into water treatment, biological stability and (the prevention of) quality deterioration in the distribution network. Important focal points in the research will be the prevention of microbiological problems (including Legionella) in the network and in building installations, the prevention of problems with organic micropollutants such as NDMA, EDCs and pharmaceuticals and the advantages of reducing particles and sediment in the distribution network. The programme will be coordinated by Kiwa Water Research and will be carried out with the water supply companies and in cooperation with universities and other research institutes including the partners of the Global Water Research Coalition.

EVALUATION ON THE RURAL DRINKING WATER QUALITY IN A CENTRALIZED SUPPLIED AREA OF CHINA

2016 ◽  
Vol 15 (2) ◽  
pp. 435-442 ◽  
Author(s):  
Wendong Wang ◽  
Shan Song ◽  
Zixia Qiao ◽  
Qin Yang ◽  
Mengmeng Wang ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Drinking Water Quality

Drinking-Water Quality and Intestinal Infectious Diseases in a Colombian Department, 2010-2016

2020 ◽  
pp. 21-29
Author(s):  
Dora Cardona Rivas ◽  
Militza Yulain Cardona Guzmán ◽  
Olga Lucía Ocampo López
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Infectious Diseases ◽  
Disease Burden ◽  
Social Protection ◽  
Drinking Water Quality ◽  
World Health ◽  
The Social ◽  
Etiological Agents ◽  
Health Organization

Objective: To characterize the burden of intestinal infectious diseases attributable to drinking-water quality in 27 municipalities in the central region of Colombia. Materials and methods: A time-trend ecological study. The drinking-water quality of the National Institute of Health and the Institute of Hydrology, Meteorology and Environmental Studies was identified. The disease burden was calculated based on the mortality registered in the National Department of Statistics and the records of morbidity attended by the Social Protection Integrated Information System. The etiological agents reported in morbidity records and the observation of environmental conditions in the municipalities of the study were included. The disease burden was determined according to the methodology recommended by the World Health Organization (WHO).

Methodological Approaches to Organization of Drinking Water Quality Monitoring Programs

2020 ◽  
pp. 4-8
Author(s):  
Yu.A. Novikova ◽  
I.O. Myasnikov ◽  
A.A. Kovshov ◽  
N.A. Tikhonova ◽  
N.S. Bashketova
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Cold Water ◽  
Water Quality Monitoring ◽  
Drinking Water Quality ◽  
Quality Monitoring ◽  
Water Supply Systems ◽  
Monitoring Programs ◽  
Supply Systems

Summary. Introduction: Drinking water is one of the most important environmental factors sustaining life and determining human health. The goal of the Russian Federal Clean Water Project is to improve drinking water quality through upgrading of water treatment and supply systems using advanced technologies, including those developed by the military-industrial complex. The most informative and reliable sources of information for assessing drinking water quality are the results of systematic laboratory testing obtained within the framework of socio-hygienic monitoring (SGM) and production control carried out by water supply organizations. The objective of our study was to formulate approaches to organizing quality monitoring programs for centralized cold water supply systems. Materials and methods: We reviewed programs and results of drinking water quality laboratory tests performed by Rospotrebnadzor bodies and institutions within the framework of SGM in 2017–2018. Results: We established that drinking water quality monitoring in the constituent entities of the Russian Federation differs significantly in the number of monitoring points (566 in the Krasnoyarsk Krai vs 10 in Sevastopol) and measured indicators, especially sanitary and chemical ones (53 inorganic and organic substances in the Kemerovo Region vs one indicator in the Amur Region). Discussion: For a more complete and objective assessment of drinking water quality in centralized cold water supply systems, monitoring points should be organized at all stages of water supply with account for the coverage of the maximum number of people supplied with water from a particular network. Thus, the number of points in the distribution network should depend, inter alia, on the size of population served. In urban settlements with up to 10,000 inhabitants, for example, at least 4 points should be organized while in the cities with more than 3,000,000 inhabitants at least 80 points are necessary. We developed minimum mandatory lists of indicators and approaches to selecting priority indices to be monitored at all stages of drinking water supply.

Pollution retention capabilities of roadside soils

1999 ◽  
Vol 39 (2) ◽  
pp. 201-208 ◽  
Author(s):  
C. Dierkes ◽  
W. F. Geiger
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Groundwater Recharge ◽  
Drinking Water Quality ◽  
Traffic Density ◽  
Roadside Soils ◽  
Highway Runoff ◽  
Lead And Cadmium ◽  
Lead Zinc

Runoff from highways contains significant loads of heavy metals and hydrocarbons. According to German regulations, it should be infiltrated over embankments to support groundwater-recharge. To investigate the decontaminating effect of greened embankments, soil-monoliths from highways with high traffic densities were taken. Soils were analyzed to characterize the contamination in relation to distance and depth for lead, zinc, copper, cadmium, PAH and MOTH. Lysimeters were charged in the field and laboratory with highway runoff to study the effluents under defined conditions. Concentrations of pollutants in roadside soils depend on the age of embankments and traffic density. Highest concentrations were found in the upper 5 cm of the soil and within a distance of up to two metres from the street. Concentrations of most pollutants decreased rapidly with depth and distance. Lead and cadmium could not be detected in lysimeter effluent. Zinc and copper were found in concentrations that did not exceed drinking water quality limits.

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