منابع مشابه
Man's control of water quality.
Man has certain needs for water: physiological, domestic, agricultural and industrial. These needs are not the same in quantity or quality, in location or in time, yet they must all be met to allow for mankind's full development. Man's use of water degrades its quality: by gross pollution, by residual materials which change the ecology of the water environment, and by persistent microchemical p...
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Maintaining water quality in distribution systems has become a prominent issue in the study of water networks. This thesis concentrates on disinfectant and particle counts as two important indicators of water quality. The models discussed in this work are based on data collected by the author. The experimental set-up and procedure are described and observations of particle counts, particle coun...
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l and drainage has been central to the development of North America since colonial times, with the first organized drainage efforts occurring as early as the 1600s (Evans et al. 1996). Drainage has been encouraged to improve public highways, reduce public health risks, promote increased crop yield and reduced yield variability, reduce surface runoff and erosion, and increase land value. Agricul...
متن کاملApplication of Water Quality Index for Quality Zoning
Aims of the Study: The physical, chemical and biological characteristics of Karaj River (near the city of Tehran, Iran), has been studied to evaluate the suitability of its water for domestic uses. Materials & Methods: Samples of water were collected from various localities before, in and after Karaj Dam Lake and were analyzed based on needs for Water Q...
متن کاملWater quality.
On November 13, 1997 the South Carolina Department of Health and Environmental Control Approved regulation R.61-43, Standards for the Permitting of Agricultural Animal Facilities. The State Legislature approved these standards on June 26,1998. The primary purpose listed for setting these standards is “To establish standards for the growing or confining of swine, processing of swine manure and o...
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ژورنال
عنوان ژورنال: Japan journal of water pollution research
سال: 1986
ISSN: 0387-2025
DOI: 10.2965/jswe1978.9.187