Impact of sodium silicate on lead release from lead(ii) carbonate

2021 ◽  
Author(s):  
Bofu Li ◽  
Benjamin F. Trueman ◽  
Javier M. Locsin ◽  
Yaohuan Gao ◽  
Mohammad Shahedur Rahman ◽  
...  
Keyword(s):  
Drinking Water ◽  
Sodium Silicate ◽  
Theoretical Support ◽  
Lead Levels ◽  
Lead Release

Sodium silicate has been used to control lead levels in drinking water, but there is little theoretical support for this practice. We find that sodium silicate is not effective in controlling lead release from lead(ii) carbonate.

Investigation of Lead Levels in Potable Water from Faucets, Water Fountains and Water Dispensers Using Various Sampling Protocols in Schools

Impact ◽  
2020 ◽  
Vol 2020 (7) ◽  
pp. 50-52
Author(s):  
Ding-Quan Ng ◽  
Yi-Pin Lin
Keyword(s):  
Drinking Water ◽  
Research Team ◽  
Potable Water ◽  
Galvanic Corrosion ◽  
Assistant Professor ◽  
Lead Contamination ◽  
University Of Technology ◽  
Sampling Protocols ◽  
Lead Levels ◽  
Lead Release

Lead contamination is an example of how elements that leach into drinking water can lead to considerable health problems in local communities. A research team led by Assistant Professor Ding-Quan Ng, from Chaoyang University of Technology, has been investigating the levels of lead found in drinking water in schools. They are also investigating lead release that occurs as a result of galvanic corrosion into potable water. Ng and his colleagues hope to shine a light on the dangers of lead contamination in drinking water supplies and seek to use their findings to promote the establishment of new regulations and policies to improve monitoring of water quality to local needs.

Impact of sodium silicate on lead release and colloid size distributions in drinking water

2021 ◽  
Vol 190 ◽  
pp. 116709
Author(s):  
Bofu Li ◽  
Benjamin F. Trueman ◽  
Sebastian Munoz ◽  
Javier M. Locsin ◽  
Graham A. Gagnon
Keyword(s):  
Drinking Water ◽  
Sodium Silicate ◽  
Size Distributions ◽  
Lead Release

Lead removal from drinking water - development and validation of point-of-use treatment devices

2002 ◽  
Vol 2 (5-6) ◽  
pp. 209-216
Author(s):  
R. Sublet ◽  
A. Boireau ◽  
V.X. Yang ◽  
M.-O. Simonnot ◽  
C. Autugelle
Keyword(s):  
Drinking Water ◽  
Fixed Bed ◽  
Field Testing ◽  
Lead Removal ◽  
Ministry Of Health ◽  
Point Of Use ◽  
Taste And Odor ◽  
Wide Range ◽  
Lead Levels ◽  
Safety Considerations

Two lead removal water filters were developed to lower lead levels in drinking water below 10 μg.L-1 in order to meet the new regulation given by the European Directive 98-83, applicable in December 2013. An appropriate adsorbent was selected through a stringent research program among a wide range of media, and is composed of a synthetic zeolite and an activated carbon. Two prototypes were developed: the first is a faucet-mounted filter which contains a fixed bed of the adsorbent and a hollow fiber bundle, while the second is an under-sink cartridge made of a porous extruded block of carbon and adsorbent. Both are able to treat at least 1,000 litres of any water containing on average 100 to 150 μg Pb.L-1, by lowering the lead concentration below 10 μg.L-1. Once their safety considerations were addressed by an independent laboratory according to the French Ministry of Health recommendations, 20 prototypes were installed at consumers' taps in northeastern France. Their performance in terms of lead removal, HPC control and bad taste and odor reduction was followed for 6 months. This field testing program resulted in the validation of both prototypes which meet the new French Ministry of Health recommendations and assures that the filtered water is fully ED 98-83 compliant. Their commercialization will be launched first in France in middle 2002.

Predicting drinking water lead levels

1981 ◽  
Vol 2 (2) ◽  
pp. 57-66 ◽  
Author(s):  
R.J. Bailey ◽  
P.F. Russell
Keyword(s):  
Drinking Water ◽  
Lead Levels

Associations of Community Water Lead Concentrations with Hemoglobin Concentrations and Erythropoietin-Stimulating Agent Use among Patients with Advanced CKD

2021 ◽  
pp. ASN.2020091281
Author(s):  
John Danziger ◽  
Kenneth J. Mukamal ◽  
Eric Weinhandl
Keyword(s):  
United States ◽  
Drinking Water ◽  
Kidney Disease ◽  
The United States ◽  
Water Systems ◽  
Adverse Outcomes ◽  
Content Type ◽  
Community Water Systems ◽  
Community Water ◽  
Lead Levels

BackgroundAlthough patients with kidney disease may be particularly susceptible to the adverse health effects associated with lead exposure, whether levels of lead found commonly in drinking water are associated with adverse outcomes in patients with ESKD is not known.MethodsTo investigate associations of lead in community water systems with hemoglobin concentrations and erythropoietin stimulating agent (ESA) use among incident patients with ESKD, we merged data from the Environmental Protection Agency (EPA) Safe Drinking Water Information System (documenting average 90th percentile lead concentrations in community water systems during 5 years before dialysis initiation, according to city of residence) with patient-level data from the United States Renal Data System.ResultsAmong 597,968 patients initiating dialysis in the United States in 2005 through 2017, those in cities with detectable lead levels in community water had significantly lower pre-ESKD hemoglobin concentrations and more ESA use per 0.01 mg/L increase in 90th percentile water lead. Findings were similar for the 208,912 patients with data from the first month of ESKD therapy, with lower hemoglobin and higher ESA use per 0.01 mg/L higher lead concentration. These associations were observed at lead levels below the EPA threshold (0.015 mg/L) that mandates regulatory action. We also observed environmental inequities, finding significantly higher water lead levels and slower declines over time among Black versus White patients.ConclusionsThis first nationwide analysis linking EPA water supply records to patient data shows that even low levels of lead that are commonly encountered in community water systems throughout the United States are associated with lower hemoglobin levels and higher ESA use among patients with advanced kidney disease.

Effects of blending of desalinated water with treated surface drinking water on copper and lead release

2010 ◽  
Vol 44 (14) ◽  
pp. 4057-4066 ◽  
Author(s):  
Haizhou Liu ◽  
Kenneth D. Schonberger ◽  
Gregory V. Korshin ◽  
John F. Ferguson ◽  
Paul Meyerhofer ◽  
...  
Keyword(s):  
Drinking Water ◽  
Desalinated Water ◽  
Lead Release

Bromide-assisted catalytic oxidation of lead(ii) solids by chlorine in drinking water distribution systems

2017 ◽  
Vol 53 (62) ◽  
pp. 8695-8698 ◽  
Author(s):  
John Orta ◽  
Samuel Patton ◽  
Haizhou Liu
Keyword(s):  
Drinking Water ◽  
Catalytic Oxidation ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Redox Process ◽  
Drinking Water Distribution Systems ◽  
Drinking Water Distribution ◽  
Lead Release

This study investigated the effect of bromide on the oxidation of three lead(ii) solids by chlorine – a redox process critical to the control of lead release in drinking water distribution systems.

Understanding the impacts of sodium silicate on water quality and iron oxide particles

2019 ◽  
Vol 5 (8) ◽  
pp. 1360-1370 ◽  
Author(s):  
Bofu Li ◽  
Benjamin F. Trueman ◽  
Mohammad Shahedur Rahman ◽  
Yaohuan Gao ◽  
Yuri Park ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Iron Oxide ◽  
Water Treatment ◽  
Sodium Silicate ◽  
Bacterial Growth ◽  
Drinking Water Treatment ◽  
Iron Oxide Particles ◽  
Oxide Particles

Silicates represent an alternative drinking water treatment for colour and turbidity due to iron. They may avoid the drawbacks of polyphosphates: increased lead solubility, the potential for increased bacterial growth, and phosphorus in wastewater.

scholarly journals Modeled Impacts of Drinking Water Pb Reduction Scenarios on Children’s Exposures and Blood Lead Levels

2020 ◽  
Vol 54 (15) ◽  
pp. 9474-9482
Author(s):  
Lindsay W. Stanek ◽  
Jianping Xue ◽  
Claire R. Lay ◽  
Erik C. Helm ◽  
Michael Schock ◽  
...  
Keyword(s):  
Drinking Water ◽  
Blood Lead ◽  
Blood Lead Levels ◽  
Lead Levels
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