heavy metals – TechConnect Briefs

Maldivian traditional medicine: sarubath

Naila A., The Maldives National University, MV

Maldivian traditional medicine has been used since ancient times in the Maldives. The purpose of the medicine use include to cure the common cold and other ailments. However, no studies to date has been conducted [...]

MCM-41 and Functionalized MCM-41 as Adsorbents to Remove Heavy Metals and Hardness from Contaminated Water and Groundwater

Leung S.W., Basnet N., Dejesus K., Lai J.C.K., Idaho State University, US

Mining operating and abandoned mines often have resulted in waste rock dumps and open pits that contain materials high in heavy metals and toxic elements. These contaminants are known to be present in groundwater, surface [...]

Modifications to permeable pavement structure to achieve improved heavy metal attenuation in stormwater runoff

Kuruppu U., Rahman A., Sathasivan A., Western Sydney University, AU

This paper reports a study conducted to investigate the influence of rainfall intensity and subbase materials on attenuation of heavy metals in stormwater runoff through permeable pavements. The porous structure of permeable pavements facilitates the [...]

Adsorption of Cd (II) Ions from Aqueous Solution Using Activated Carbon Prepared from Vitellaria paradoxa Shell

Adebayo G.B., Adekola F.A., Jimoh A.A., Alao F.O., Adegoke H.I., University of Ilorin, NG

Activated carbon prepared from vitellaria paradoxa shell using ortho-phosphoric acid as activating agent was used for the removal of Cd (II) ions from aqueous solution. The adsorbent sample was characterized by some physicochemical and spectroscopic [...]

Removal of Heavy Metals From Aqueous Solutions with Calcium Alginate Beads

Luna-Pineda T., Román-Velázquez F., University Of Puerto Rico at Mayaguez, PR

The present research is focused on the development of a bio-sorbent based on alginate beads. The alginate is a natural polymer extracted from brown seaweed with capability of hosting divalent cations in gel state, which [...]

Removal of Heavy Metals From Aqueous Solutions with Calcium Alginate Beads

Luna-Pineda T., Román-Velázquez F., University Of Puerto Rico at Mayaguez, PR

The present research is focused on the development of a bio-sorbent based on alginate beads. The alginate is a natural polymer extracted from brown seaweed with capability of hosting divalent cations in gel state, which [...]

Removal of Zn(II) from Aqueous Solution by Biosorption using two Green Algal Species Oscillatoria sp. & Spirogyra sp.

Singh D., National Institute of Technology, Kurukshetra, IN

Pollution due to heavy metals has become an environmental problem of worldwide concern due to their increased discharge, toxicity, non-biodegradable and persistence nature. Major anthropogenic sources of heavy metals include metal extraction, metal fabrication, metal [...]

Simultaneous Determination of Heavy Metals Using Array Based Optical Chemical Sensor

Choi Y., Ryoo D., Park S.H., Park S.Y., Park S.H., Park S.Y., Jeonju University, KR

A sol-gel optical chemical sensor encapsulated with complexing agents for simultaneous detection of selected heavy metals such as chromium, lead, mercury, and iron in aqueous media was fabricated. The sensor was prepared by acid catalyzed [...]