Practical Approach to Remediating Heavy Metal-contaminated Soil by Grain Sorting, Gravity Separation, and Grain-surface Attrition

Mercury- Contaminated Grain in Iraq

The Separation of Grain by Projection

.1 tlcvice is describetl ~vhich effects a continuous separatior~ of intcrnally infestetl wllcat from sound shea at, and ~11ic11 separates ~vheat into a number of fractions of different test weight. A stream of wheat, projected into still air by rapidly moving belts, is dispersed by the conlbined effects of air drag and gravitation into numerous fractions which are caught in a series of hoppers....

Reducing Agents Enhanced Electrokinetic Soil Remediation (EKSR) for Heavy Metal Contaminated Soil

Reducing agents-Enhanced electrokinetic Soil Remediation (EKSR) was performed for the removal of chromium (Cr), cobalt (Co) and nickel (Ni) from contaminated soil. The reducing agents oxalic acid and ascorbic acid were investigated under constant voltage gradient (2.0 V/cm), current changes, pH, redox potential, concentration changes and removal performance of Heavy Metals (HMs). The result...

Removal of Heavy Metal from Contaminated Soil with Chelating Agents

Removal of copper and nickel by the addition of the biodegradable chelating agent, chitosan and ethylenediamine tetraacetic acid (EDTA), was investigated, alongside the reaction of a reference compound sodium citrate for comparison. The artificial-contaminated soils were used in this study. The experiments showed that the extraction ability for copper and nickel from the contaminated soil decre...

Remediation of soil contaminated with the heavy metal (Cd2+).

Soil contamination by heavy metals is increasing. The biosorption process for removal of the heavy metal Cd(2+) from contaminated soil is chosen for this study due to its economy, commercial applications, and because it acts without destroying soil structure. The study is divided into four parts (1) soil leaching: the relationships between the soil leaching effect and agitation rates, solvent c...