contaminated soil toxicity Articles
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Distribution behaviour of trace and toxic metals in soil and sediments along the Thane Creek near Mumbai, India
The long biological half lives, non-bio-degradable nature and accumulative properties of trace and toxic heavy metals in aquatic environment has attracted great attention of environmental scientists and ecologist in recent years. Therefore, in the present investigation, we have selected Kalwa Bridge and Balkum sites along the Thane Creek to investigate pollution load due to trace and toxic heavy ...
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Contaminated Soil Fixation
Contaminated soil is one that has heavy metals present within the project site. The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test to determine if metal contaminated soil needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics need to be disposed of at a facility permitted for that material at a high cost. The alternative is to ...
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Changes of toxic metals during biological stabilization and their potential ecological risk assessment
With various disadvantages of pollution control technologies for toxic metal-contaminated soil, we mixed contaminated soil with sludge for in situ composting to stabilize toxic metals, so plants are enriched to take up the toxic metals. When simulating the above, we added toxic metal solution into sewage sludge, and then composed it with steel slag to determine inhibition of the availability ...
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Determination of adsorption efficiency based on cation exchange capacity related to red earth, bone meal and pulverised fly ash as ameliorants to lead contaminated soils
Efficient treatment strategies to reduce the toxicity of metal contaminated soil using cost effective techniques such as naturally available ameliorants and industrial waste have emerged. Three easily available amendments were determined: Bone meal, red earth/mud and pulverised fly ash (PFA). The application of ameliorants offered a possible alternative in situ remediation of contaminated sites ...
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Toxicity of diesel contaminated soils to the subantarctic earthworm Microscolex macquariensis
Several fuel spills have occurred on subantarctic Macquarie Island (54°30′ S 158°57′ E) associated with storing fuel and generating power for the Island's research station. The Australian Antarctic Division began full‐scale, on‐site remediation of these sites in 2009. To develop appropriate target concentrations for remediation, acute and chronic tests were developed with the endemic earthworm, ...
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Toxicity of fuel contaminated soil to antarctic moss and terrestrial algae
Fuel pollution is a significant problem in Antarctica, especially in areas where human activities occur, such as at scientific research stations. Despite this, there is little information on the effects of petroleum hydrocarbons on Antarctic terrestrial biota. This paper demonstrates that the Antarctic mosses Bryum pseudotriquetrum, Schistidium antarctici, Ceratodon purpureus and the Antarctic ...
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Metal Contaminated Soils Fixation
Treatment of Metal Contaminated Soils The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test to determine if metal contaminated soils needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics need to be disposed of at a facility permitted for that material at a high cost. Soils treated in the field prior to off-site disposal can be ...
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Phytotoxicity of trace metals in spiked and field‐contaminated soils: Linking soil extractable metals with toxicity
Soil tests have been widely developed to predict trace metal uptake by plants. The prediction of metal toxicity however has rarely been tested. The study was set up to compare eight established soil tests for diagnosing phytotoxicity in contaminated soils. Nine soils contaminated with Zn or Cu by metal mining, smelting or processing were collected. Uncontaminated reference soils with similar ...
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Low-Cost Microbiotests For Toxicity Monitoring During Bioremediation Of Contaminated Soils
Abstract: This paper addresses in the first place the need to apply toxicity tests with batteries of species from different trophic levels for an (ecologically meaningful) determination of the toxic hazard of contaminated soils. Furthermore, \'direct contact\' tests must be performed as well as assays on pore waters, leachates or percolates.Most toxicity tests available to date are dependent on ...
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Risk assessment of heavy metal contaminated soil in the vicinity of a lead/zinc mine
Heavy metal contamination of soils through anthropogenic activities is a widespread and serious problem confronting scientists and regulators throughout the world. In this study we investigated the distribution, chemical species and availability of lead, zinc, cadmium and copper in nine surface (0 to 20 cm) soils from near an abandoned lead/zinc mine tailings located in Shaoxing, Zhejiang, China. ...
By IOS Press
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Lead Stabilization on Industrial Projects - What is Lead Stabilization?
Lead stabilization is the process of encapsulating lead particles created during industrial projects rendering them non-leachable to dispose of as non-hazardous waste. With the occurrence of recent lead stabilization issues, TDJ Group uses a chemically engineered product (Blastox®) to stabilize lead and other heavy metals with a one step process. The modern day is progressing in hazardous ...
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Toxicity of Pb‐contaminated soil to Japanese quail (Coturnix japonica) and the use of the blood/dietary Pb slope in risk assessment
This study relates tissue concentrations and toxic effects of Pb in Japanese quail (Coturnix japonica) to the dietary exposure of soil‐borne Pb associated with mining and smelting. From 0 to 12% contaminated soil, by weight, was added to five experimental diets (0.12 to 382 mg Pb/kg, dry weight) and fed to the quail for six weeks. Benchmark doses associated with a 50% reduction in ALAD ...
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How Tire Shredding Protects Wildlife
One of the most revolutionary inventions in the history of mankind was the wheel, and the best upgrade to that invention was the rubber tire, which overcame the limitations of wooden or metal wheels and made it possible to have smooth rides at fast speeds. However, there is a significant drawback to using rubber tires: eventually, they get too worn out to be useful as tires anymore and have to ...
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Fueling Sustainability: Tyre Pyrolysis Plant as a Waste Reduction Strategy
As the world grapples with the challenges of environmental degradation, waste management has become a pressing concern. Among the various types of waste, discarded tires have long been a significant problem. Each year, millions of tires are disposed of, contributing to landfills and posing environmental hazards. In this post, we explore the innovative and eco-friendly solution of tire pyrolysis ...
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Designing and Implementing Perimeter Air Monitoring Programs
Perimeter or fenceline ambient air quality and meteorological monitoring programs have become increasingly valuable at hazardous waste, landfill, dredging, ports, and MGP remediation sites. Air quality monitoring programs protect public health and reduce owner liability related to excavation. When ...
By AECOM
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