REMOVAL OF ARSENIC IN WATERPROBLEM TO BE SOLVED: To reduce arsenic ions and/or arsenous ions contained in water to arsenic to remove the same without using a large amt. of chemicals, generating a large amt. of sludge and performing troublesome operation such as periodic regeneration treatment ...
PROBLEM TO BE SOLVED: To reduce arsenic ions and/or arsenous ions contained in water to arsenic to remove the same without using a large amt. of chemicals, generating a large amt. of sludge and performing troublesome operation such as periodic regeneration treatment by a chemical agent. ;SOLUTI...
Finally the novel arsenic removal system, developed and implemented in Denmark to meet the most rigorous water standards, is demonstrated as the practical examples of technology utilizing some of the studies about the role of iron ions and hydroxides in arsenic removal treatment....
Constructed wetlands are an attractive choice for removing arsenic (As) within water resources used for drinking water production. The role of substrate and vegetation in As removal processes is still poorly understood. In this study, gravel, zeolite (microporous aluminosilicate mineral), ceramsite (li...
Arsenic pollution of drinking water is a concern, particularly in the developing countries. Removal of arsenic from drinking water is strongly recommended. Despite the availability of efficient technologies for arsenic removal, the small and rural communities in the developing countries are not capable ...
Portland cement has been used as a new lowcost adsorbent for the removal of arsenic from the water environment. In the batch experiments conducted at an initial concentration of 0.2 mg 11 of arsenate, it was found that up to 95% of arsenate could be removed. Kinetic profiles were developed...
Arsenic and antimony in water and wastewater: overview of removal techniques with special reference to latest advances in adsorption. J. Environ. Manag. 151, 326e342.Unqureanu G, Santos S, Boaventura R, et al. Arsenic and antimony in water and wastewater: Overview of removal techniques with ...
Foam flotation has been employed in this work for enhanced removal of arsenic species from water. The method involves interactions between arsenic species or arsenic-hydrolysable multi-cation complexes and surfactants, and removal of the hydrophobic complexes formed by air bubbles under quiescent ...
An amino‐acid‐based single‐chain surfactant is synthesized by reacting cysteine with octanoyl chloride to obtain octanoyl cysteine, which is then used in a study of selective ion flotation for the removal of low levels of arsenic from drinking water. This compound has high water solubility and...
Selective removal of arsenic(V) from drinking water was carried out with strong-base anion-exchange resins. The influence on the efficiency of the process of parameters such as type of anion-exchange resin and water composition was investigated. Recycling of the sodium chloride regenerant solution ...