Publication
Removal of chromium(VI) from drinking water by redox-assisted coagulation with iron(II)
Abstract
Batch experiments were conducted to determine whether sub-ppb concentrations of dissolved Cr(VI) could be achieved by redox-assisted coagulation with Fe(II). in this process Fe(II) acts as a reductant for Cr(VI) and, after its oxidation to Fe(Ill), as a coagulant. With an Fe(II) dose of 30 muM (1.7 mg/l as Fe), dissolved Cr(VI) concentrations in synthetic or natural Colorado River water (CRW) at pH 8.2 could be decreased from an initial value of 1 muM (52 mug/l) to
Official source
About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.
Related concepts (32)
Energy conversion efficiency
Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical, electric power, mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1. Energy conversion efficiency depends on the usefulness of the output. All or part of the heat produced from burning a fuel may become rejected waste heat if, for example, work is the desired output from a thermodynamic cycle.
Chemical kinetics
Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a reaction occurs but in itself tells nothing about its rate. Chemical kinetics includes investigations of how experimental conditions influence the speed of a chemical reaction and yield information about the reaction's mechanism and transition states, as well as the construction of mathematical models that also can describe the characteristics of a chemical reaction.
Drinking water
Drinking water is water that is used in drink or food preparation; potable water is water that is safe to be used as drinking water. The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions. Recent work showed that the most important driver of water turnover which is closely linked to water requirements is energy expenditure. For those who work in a hot climate, up to a day may be required.
Related publications (36)
Oxidation processes and me
This publication summarizes my journey in the field of chemical oxidation processes for water treatment over the last 30+ years. Initially, the efficiency of the application of chemical oxidants for micropollutant abatement was assessed by the abatement of ...
Pergamon-Elsevier Science Ltd2024Scale effects on efficiency and profitability in the Swiss banking sector
This paper analyzes efficiency and profitability in the Swiss banking sector over the period 1997–2019. We find strong evidence for scale economies: for most banks in the sample, efficiency and profitability increase with bank size. Using an instrumental v ...
2022Climate Action, Sufficiency, Deliberative Democracy
In an ideal world, sufficiency, efficiency, and clean energy would be balanced, with an emphasis on sufficiency in the critical decade ahead of us. Given this importance, how could we get closer to this ideal world, and improve the general acceptance of su ...
Business School Lausanne (BSL)2022Related MOOCs (5)
SES Swiss-Energyscope
La transition énergique suisse / Energiewende in der Schweiz
SES Swiss-Energyscope
La transition énergique suisse / Energiewende in der Schweiz
Sorption and transport in cementitious materials
Learn how to study and improve the durability of cementitious materials.