الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
br>All industrial operations produce some wastewaters uat be returned to the environment. ified as (1) Domestic wastewaters,Wastewaters can he 2) Industrial wastewc
and (3) Cooling wastewaters.
Domestic wastewaters are prr
by plant workers, shower facilities, and cafeterias. Indu~ W&stewaters result from an estahlishment that preparef material or article for the market. Cooling wastewaters are
reault of various cooling processes and can he once-pass sy
or multiple-recycle cooling systems. Once-pass cooling sy
tmploy large volumes of cooling waters that are used oncereturned to the environment. Multiple-recycle cooling sy have v~rious types of cooling towers to return excess heat t ’environment and require periodic blowdown to prevent e: build-up of salts. (59)
Domestic wastewaters are generally handled hy the ne .anitary sewage system to prevent the spread of pathogenic m~ orqanisms which might cause disease. Normally, industrial tewaters do not POse the potential for pathogenic mi orqanisms, but they do pose potential damage to the environ throu1h either direct or indirect chemical reactions. Some du.trial wastes are read by hiodegraded and create an immee oXyqen demand. Other industrial wastes are toxic and represe direct h~alth hazard to hiological life in the environm
Cooling wastewaters are the least dangerous, but they can conta process wastewaters as a result of leaks in the cooling system Recycle cooling systems tend to concentrate both inorganic a organic contaminants to a point at which damage can crea ted. < 59)
Industry is sending out a loud collective cry for help. ! cry becomes louder as the local governments begin citing for wo tewaters discharge violations and failure to renew industri wastewater permits. (9)
The plant manager of a local industrial plant relates ,
latest turn of events to his consulting engineer.
The loe
sanitation district has threatened to shut down the plant. plant manager, too busy coping with the daily crises of prod,
r ticn, has no time to completely analyse the situation. help. (9)
From the previous discussion the most important factor
attacking an industrial-waste problem is a complete ~7&~~~edge
the-character of the waste or wastes to be treated. Then it
necessary to find out method for detecting the wastes in the p luted water to choose a suitable methods for treating it.
In this investigation the different methods for measur the organic content are to be discussed separately because their importance in both design and operation of wastew2 treatment plants and the management of water quality.
Hiqhlights are to be given on design features, operation points and efficient controlling factors for organic efflt: treatment method.