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There are various treatments available for soil decontamination, including physical, chemical, thermal and biological treatments. However, when pollutants are persistent or toxic, it is often necessary to use an integrated set of techniques, to enhance decontamination effects. Integrated treatments typically include soil washing, heat treatment, stabilization processes or phytoremediation. The biological recovery of soils contaminated with hydrocarbons or heavy metals is a topic of central interest, since many treatment processes are often extremely aggressive and destroy the flora and microflora of the treated environments and can interfere with the natural properties of the soil. The objective of this work was to analyze the biological recovery of soils treated with an electrokinetic remediation (ER) method at laboratory, pilot and field-scale tests which measure the germination of seeds and growth of maize (Zea mays L.) using a 2D circular arrangement of electrodes (IrO-TaO |Ti| |Ti). The hydrocarbon removal rates obtained were greater than 80% for both the hydrocarbon's medium and heavy fractions; after this ER method was employed a phytoremediation treatment was also completed, using maize, which increased the removal rates up to 90%. A coupled electro- and phyto-remediation process was develop at the field-scale within an oil refinery property in Guanajuato, Mexico to demonstrate the successful biological recovery of soils contaminated with hydrocarbons as proved by the germination of seeds and growth of maize in the on-site fields.
This article was published in the following journal.
Name: Journal of hazardous materials
Stabilization/solidification (S/S) is commonly applied to treat heavy metal-contaminated soils through the use of lime and ordinary Portland cement (OPC). Recently, reactive magnesia (MgO) has emerged...
The purpose of this research is to find a mathematical model based on a statistical analysis to predict the evolution of the total petroleum hydrocarbons (TPH) concentrations with time in the bioremed...
The mining and smelting of lead-zinc (Pb-Zn) ores cause widespread As contamination. The fractions and colloidal distribution of As associated with Fe oxide minerals in Pb-Zn mine-contaminated soils h...
As an environmental contaminant, petroleum-contaminated soil will pollute water, stunt agricultural growth, and cause serious harms to human health if it wasn't safely disposed and remediated. Here, l...
Endpoint assessment using biological systems in combination with the chemical analysis is important for evaluating the residual effect of contaminants following remediation. In this study, the level o...
This is a prospective, multicenter, interventional, observational, open label, single arm, longitudinal evaluation of ventral incisional hernia repair using LTM in contaminated or infected...
Eventration corresponds to the dehiscence of the abdominal wall, with passage of peritoneum and / or intra-abdominal viscera, through an acquired orifice of the abdominal wall. It is secon...
The prevalence of asymptomatic bacteriuria in pregnancy has been reported in the range of 2-15%. Due to the severity of the complications related to asymptomatic bacteriuria in this pat...
The investigators' hypothesis is that placement of CollatampG in the subcutaneous layer of contaminated abdominal wounds is effective prophylaxis for superficial surgical site infection (S...
Introduction: immersion cold water is a recuperative strategy commonly used, however, are not yet fully understood the real effects of this technique on specific conditions. Objective: To ...
Comprehensive, methodical analysis of complex biological systems by monitoring responses to perturbations of biological processes. Large scale, computerized collection and analysis of the data are used to develop and test models of biological systems.
A system of safety management (abbreviated HACCP) applied mainly to the food industry. It involves the analysis and control of biological, chemical, and physical hazards, from raw material production, procurement and handling, to manufacturing, distribution and consumption of finished products.
A method of chemical analysis based on the detection of characteristic radionuclides following a nuclear bombardment. It is also known as radioactivity analysis. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Recovery from mental disorders and/or substance abuse. The process of change in which individuals improve their MENTAL HEALTH and wellness, live a self-directed life, and work to achieve their full potential.
Restoration of an environment, ecosystem, or habitat that was physically damaged during land development or by natural disaster, or contaminated by ENVIRONMENTAL POLLUTANTS. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with ENVIRONMENTAL MONITORING.
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...