Wednesday, April 1, 2009

SOLID WASTE

Solid waste are being produced since the beginning of civilisation. During the early period, solid wastes were conveniently and unobtrusively disposed of as the density of population was low with large open land space. With the advent of industrialisation and urbanisation,, the problems of waste disposal increased. High population density, intensive land use for residential, commercial and industrial activities led to adverse impact on the environment. Environmental impact due to gaseous and liquid discharges has received greater attention than that by solid wastes. This third pollution or land pollution (as it mainly affects land) received limited public attention though it is significant.

The term "waste" implies that it is of no concern to anyone and is of no value. The intrinsic value of the material as a resource or as an object of further utility has not been fully recognized. The net result is to reduce the expenditure is incurred for this purpose and it is reported that in some developed countries the expenditure incurred for solid waste management is quite substantial.


The collection, trnsport, processing and disposal of solid wastes (which is a highly visible and important minicipal service) involve a large expenditure but receive scant attention. The citizens get accustomed to live with this nuisance, though avoidable. The attention provided falls far short of the known and desired practice which could be attributed to public apathy, entrenched habits and traditions and vested interests leading to ineffective management. Adequate information on the management techniques adopted in developed countries is available, which could be applied to developing countries with suitable modifications. Such as effort is now made to enunciate technological aspects taking into account the differences in waste characteristics, degree of industrial and economic development, financial constraint and socio-cultural aspects (Bhide A.D and Sundaresan,1983).


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