Insights into the mechanisms of mercury sorption onto aluminum based drinking water treatment residuals
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چکیده
منابع مشابه
A method for determining the phosphorus sorption capacity and amorphous aluminum of aluminum-based drinking water treatment residuals.
A high amorphous aluminum or iron oxide content in drinking water treatment residuals (WTRs) can result in a high phosphorus (P) sorption capacity. Therefore, WTR may be used beneficially to adsorb P and reduce P loss to surface or ground water. The strong relationship between acid ammonium oxalate-extractable aluminum (Al(ox)) and Langmuir phosphorus adsorption maximum (P(max)) in WTR could pr...
متن کاملEffect of solution chemistry on arsenic sorption by Fe- and Al-based drinking-water treatment residuals.
Drinking-water treatment residual (WTR) have been proposed as a low-cost alternative sorbent for arsenic (As) - contaminated aquatic and soil systems. However, limited information exists regarding the effect of solution chemistry on As sorption by WTR. A batch incubation study was carried out to investigate the effect of solution pH (3-9) on As(V) sorption by Al- and Fe-based WTR as a function ...
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Perchlorate contamination of aquifers and drinking-water supplies has led to stringent regulations in several states to reduce perchlorate concentrations in water at acceptable levels for human consumption. Several perchlorate treatment technologies exist, but there is significant cost associated with their use, and the majority of them are unable to degrade perchlorate to innocuous chloride. W...
متن کاملSelenium adsorption to aluminum-based water treatment residuals.
Aluminum-based water treatment residuals (WTR) can adsorb water- and soil-borne P, As(V), As(III), and perchlorate, and may be able to adsorb excess environmental selenium. WTR, clay minerals, and amorphous aluminum hydroxide were shaken for 24 h in selenate or selenite solutions at pH values of 5-9, and then analyzed for selenium content. Selenate and selenite adsorption edges were unaffected ...
متن کاملImpacts of Substituting Aluminum-Based Coagulants in Drinking Water Treatment
Aluminum-based coagulants in drinking water treatment are widely used across Canada. According to the literature, the presence of aluminum in drinking water poses possible risks to humans. Preliminary studies investigating the use of alternative coagulating agents such as iron-based coagulants, lanthanide salts and organic coagulants have already revealed that their implementation is possible, ...
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ژورنال
عنوان ژورنال: Journal of Hazardous Materials
سال: 2016
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2016.01.001