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

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

Environmental Science Water Research & Technology ◽

10.1039/d0ew00886a ◽

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.

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

Water Research ◽

10.1016/j.watres.2010.05.014 ◽

2010 ◽

Vol 44 (14) ◽

pp. 4057-4066 ◽

Cited By ~ 18

Author(s):

Haizhou Liu ◽

Kenneth D. Schonberger ◽

Gregory V. Korshin ◽

John F. Ferguson ◽

Paul Meyerhofer ◽

...

Keyword(s):

Drinking Water ◽

Desalinated Water ◽

Lead Release

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

Chemical Communications ◽

10.1039/c7cc02533e ◽

2017 ◽

Vol 53 (62) ◽

pp. 8695-8698 ◽

Cited By ~ 5

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.

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

Environmental Science Water Research & Technology ◽

10.1039/c9ew00257j ◽

2019 ◽

Vol 5 (8) ◽

pp. 1360-1370 ◽

Cited By ~ 3

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.

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Effect of Aluminum on Lead Release to Drinking Water from Scales of Corrosion Products

Environmental Science & Technology ◽

10.1021/acs.est.0c00738 ◽

2020 ◽

Vol 54 (10) ◽

pp. 6142-6151 ◽

Cited By ~ 2

Author(s):

Guiwei Li ◽

Yeunook Bae ◽

Anushka Mishrra ◽

Baoyou Shi ◽

Daniel E. Giammar

Keyword(s):

Drinking Water ◽

Corrosion Products ◽

Lead Release

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Key Parameters and Kinetics of Oxidation of Lead (II) Solid Phases by Chlorine in Drinking Water

Water Practice & Technology ◽

10.2166/wpt.2006.092 ◽

2006 ◽

Vol 1 (4) ◽

Author(s):

Haizhou Liu ◽

Gregory V. Korshin ◽

John F. Ferguson ◽

Wenju Jiang

Keyword(s):

Drinking Water ◽

Transition Phase ◽

Lag Phase ◽

X Ray Diffraction ◽

Water Parameters ◽

Carbonate Concentration ◽

Rapid Transition ◽

Lead Release ◽

Solid Phases ◽

Kinetics Of

Equilibria and kinetics of transformations in the Pb(II)/Pb(IV)/chlorine system have a great impact on lead release in drinking water. To explore this system, oxidation of representative Pb(II) solid phases, predominantly hydrocerussite was carried out in chlorinated water with various alkalinities and pH values. It was determined that the oxidation of hydrocerussite by chlorine proceeded via three phases. These included a lag phase, a rapid transition phase and a final quasi steady-state phase. The lag phase corresponded to the transformation of hydrocerussite to cerussite PbCO3, while during the transition phase, the oxidation of PbCO3 and formation of -PbO2 occurred. Key water parameters, such as pH, chlorine concentration and dissolved inorganic carbonate concentration had a pronounced impact on the duration of the lag phase. Data of X-ray diffraction and scanning electron microscopy demonstrated that cerussite PbCO3 was formed as a transient phase during hydrocerussite oxidation, and dispersed microcrystals of scrutinyite -PbO2 were formed when chlorine was consumed.

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