Electrochemical Methods of Waste Disposal
The problem of waste disposal was separated in the previous chapter from that of effluent treatment. This problem has been around throughout the ages, and it was formerly simply solved, mainly by letting nature take care of it. Unwanted materials were left to ferment away, i.e., to become largely CO2 by the action of bacteria. While the total amount of waste was small, this was acceptable, and the ecological situation was not disturbed. Often, burning was used to help the decay process, transferring most of the wastes into the atmosphere. In an ecologically conscious society, one which has to deal with and reverse disturbances of nature’s balances, these methods are not acceptable. While natural decay still is a way of waste disposal, it must be limited in extent, and handled in a more careful way. The wastes are now compacted, deodorized, used in sanitary landfills, etc.; efforts are made to avoid odors and atmospheric pollution (burning is unacceptable for the future, even with purification of the effluent gas, because of increasing still further the unbalanced carbon dioxide emission). Because of the extra efforts in handling, and because of the increasing volume of waste per person generated by modern societies, costs spent in the treatment of wastes are increasing.
KeywordsSulfur Dioxide Waste Disposal Sanitary Landfill Anion Exchange Membrane Climate Control System
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