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Essay / Research Paper Abstract
15 pages in length. The mining industry has long been a contributor of toxic chemicals and wastewater by virtue of its processing format; the mining of the twenty-first century continues to be responsible for myriad environmental concerns directly related to wastewater containment and disposal. The standard way to address these issues has typically included such approaches as utilizing large holding ponds to store the wastewater, however, this option has served to leach the toxins through the insufficient liners and directly into groundwater supplies. Another option is that of wastewater streams, an idea that is falling more and more behind in its ability to "meet increasingly stringent discharge limits" (GE Infrastructure Water Process Technologies, 2005). Recycling wastewater back into a useable, nontoxic commodity is the trend toward future treatment, an option that will provide for the production of high quality water, as well as the ability to recover, treat and resell valuable mining by-products. Bibliography lists 11 sources.
Page Count:
15 pages (~225 words per page)
File: LM1_TLCWasteWater.rtf
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Unformatted sample text from the term paper:
for myriad environmental concerns directly related to wastewater containment and disposal. The standard way to address these issues has typically included such approaches as utilizing large holding ponds to
store the wastewater, however, this option has served to leach the toxins through the insufficient liners and directly into groundwater supplies. Another option is that of wastewater streams, an
idea that is falling more and more behind in its ability to "meet increasingly stringent discharge limits" (GE Infrastructure Water Process Technologies, 2005). Recycling wastewater back into a useable, nontoxic
commodity is the trend toward future treatment, an option that will provide for the production of high quality water, as well as the ability to recover, treat and resell valuable
mining by-products. In some cases, valuable mining by-products can be recovered for resale or reuse using membrane and thermal systems. Examples of waste streams requiring treatment include:
* Containment pond leachate * Cooling tower blowdown * Demineralizer concentrate and regeneration wastes * High total dissolved solids (TDS) effluents * Mine drainage * Reverse osmosis (RO) reject
* Scrubber blowdown (GE Infrastructure Water Process Technologies, 2005) Solving wastewater problems that exist within the mining industry continues to present many
challenges to those seeking viable alternatives to the manner by which the issue has been dealt with throughout the past century. With the advent of more contemporary options as
zero liquid discharge (ZLD), recycling and other recovery/minimization projects, the time to move away from holding ponds and the inherent leaching risk has finally arrived. "In the past, industrial
wastewater treatment primarily focused on the removal of BOD and suspended solids. In recent years, however, the focus has changed to aquatic toxicity, priority pollutants, and volatile organics" (Eckenfelder
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