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The term ‘acid sulfate soils’ (ASS) was coined by the Working Party on Nomenclature and Methods for the first International Symposium on Acid Sulfate Soils (1972, Wageningen) to mean soils that contain, or have the potential to produce, sulfuric acid in quantities that cause significant and long-lasting changes in key soil properties. [22]
Scientists have recently begun to explore acid mine drainage and mine reclamation sites for unique soil bacteria capable of producing new pharmaceutical leads. Soil microbes have long been a source for effective drugs [ 33 ] and new research, such as that conducted at the Center for Pharmaceutical Research and Innovation , suggests these ...
Acid mine drainage formation occurs when rocks containing sulfide minerals (e.g. Pyrite) are exposed to water and air, producing an acidic, sulfate-rich drainage. [24] These acidic waters can leach out various heavy metals from the surrounding rocks and soil. The acidic and metal-rich AMD is a major source of environmental pollution ...
The concern over soil contamination stems primarily from health risks, from direct contact with the contaminated soil, vapour from the contaminants, or from secondary contamination of water supplies within and underlying the soil. [2] Mapping of contaminated soil sites and the resulting clean ups are time-consuming and expensive tasks, and ...
In 2008, water levels in Lake Alexandrina and Lake Albert became so low that there was a high risk of large quantities of acid sulphate soils forming. The soils on the lake beds are naturally rich in iron sulphides. When exposed to the air, such as may occur in a time of severe drought, the sulphides oxidise, producing sulphuric acid.
Major environmental issues in Australia include whaling, logging of old growth forest, irrigation and its impact on the Murray River, Darling River and Macquarie Marshes, acid sulfate soils, soil salinity, land clearing, soil erosion, uranium mining, nuclear waste, the creation of marine reserves, [16] air quality in major cities and around ...
In 2008, water levels in Lake Alexandrina and Lake Albert became so low that large quantities of acid sulphate soils started to form. [6] The possibility of flooding the lake with seawater to prevent acidification was raised, and tension remains between South Australia and the upstream states over how to share the dwindling supply of water. [ 7 ]
SahysMod is a computer program for the prediction of the salinity of soil moisture, groundwater and drainage water, the depth of the watertable, and the drain discharge in irrigated agricultural lands, using different hydrogeologic and aquifer conditions, varying water management options, including the use of ground water for irrigation, and several crop rotation schedules, whereby the spatial ...