Public Health Engineering Abstracts, Volym 30–31

acid activated sludge Amer application arsine bacteria beryllium brucellosis carbon chemical chlordan chlorine chlorine dioxide City coliform compounds concentration containing cost counts Dairy described determine developed digestion discharge discussed disease disposal dust effect effluent Engineering equipment Federal Security Agency filtration flocculation flow fluoride increased Industrial Wastes infection insecticides Jour July June laboratory larvicide malaria materials measures ment method methylene blue milk Mosquito obtained odor operation organic oxidation oxygen pasteurized percent pipe pollution population present problems Public Health Service pumping radioactive rats reduced removal Reprint residual River rodents Salmonella samples sanitary Sanitation Sept Sewage and Industrial sewage treatment sewer sludge digestion sodium solids solution spray storage stream surface tanks Tarzwell temperature tion toxic treated treatment plant typhus Water & Sewage water supply