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Essay / Research Paper Abstract
A 10 page overview of the concept of sustainability in relation to the treatment and disposal of domestic wastewater. Identifies two more sustainable alternatives than conventional chemical treatment and disposal into water bodies: reverse osmosis and manmade wetlands. Bibliography lists 5 sources.
Page Count:
10 pages (~225 words per page)
File: D0_DomWaste.doc
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waterbodies. These alternatives are reverse osmosis and the construction of man-made wetlands. While both are forms of treatment, reverse osmosis has the potential of producing a product which
can be used as drinking water or for the purposes of ground water recharge. Treatment via man made wetlands creates both an economically valuable treatment system and an ecologically
valuable one. Both of these alternative methods of treatment and disposal are particularly valuable in that they are sustainable practices which not only meet the current needs of the
worlds population but which also can be counted on to preserve as much of the worlds valuable ecosystems as possible for future generations. Introduction The world generates a tremendous
amount of domestic wastewater. There are numerous environmental problems associated with domestic wastewater. In addition to the number of contaminants which are associated with it, the tremendous volume
of the output itself often makes it difficult to dispose of. There are numerous solutions to both the treatment and the disposal of domestic wastewater, the utilization of some
of which can actually be environmentally advantageous. Current Treatment Methodologies Currently in the United States approximately one-third of domestic wastewater is processed in on-site septic systems (Wilhelm, Schiff, and
Cherry; 1994). The remainder of the treated waters are collected in centralized treatment systems which remove organic matter and chemically treat the water to some degree for bacteriological and
viral contaminants prior to releasing it in adjacent waterbodies or other disposal areas. Specific Contaminants Specific contaminants of domestic wastewaters include nitrates, phosphates and human pathogens. These
waters also frequently include toxic organic non-organic constituents from household products (Wilhelm, Schiff, and Cherry; 1994). Redox level and pH of the wastewater are also important environmental impacts.
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