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leaching |
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leachingProcess by which substances are washed through or out of the soil. Fertilizers leached out of the soil drain into rivers, lakes, and ponds and cause water pollution. In tropical areas, leaching of the soil after the destruction of forests removes scarce nutrients and can lead to a dramatic loss of soil fertility. The leaching of soluble minerals in soils can lead to the formation of distinct soil horizons as different minerals are deposited at successively lower levels. |
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? Mentioned in | ? References in periodicals archive | ||
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| SC) and Phelps Dodge (PD) announced on October 4 their agreement on restart of copper concentrator and construction of copper concentrate leaching facility at Morenci copper mine in Arizona. Townsend concludes that for steel-laden electronics, a direct measurement of lead content may be more reliable than the standard leaching test for determining whether the products, when thrown away, should be designated as hazardous waste. Phase A--Identification of wastes types and any special properties of those wastes affecting proper disposal, including a study of the leaching characteristics of the wastes, development of a standard foundry waste leaching test for characterizing wastes and test results. |
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leaching
