new literature Sludge conditioning. New Booklet tells how to use Dow Chemical’s Purifloc to condition sludges. Applications, advantages, and laboratory evaluations are covered as well as various sludgehandling techniques. Dow Chemical 91 co. Pneumatic systems. Literature describes heavy-duty, negative-pressure pneumatic waste collection systems. Brochure describes installations and advantages in both new and old structures. ECI Air92 Flyte Corp. Bibliography. Collection of Rand Corp. publications on environmental questions is available in newly compiled bibliography from West Coast think tank. Rand Corp. 93 Water standards. Technical folder tells of research to establish absolute turbidity of pure water in Formazin Turbidity 94 Units. Hach Chemical Co. Management guide. New Booklet describes systems available for air and water pollution and solid waste disposal. Monsanto Enviro-Chem Systems, Inc. 95 Gas detection. Bulletin lists units for analyzing and detecting gases, liquids, and vapors. Includes combustible gas meters, oxygen and thermal conductivity analyzers, nondispersive infrared, hydrogen flame ionization and process chromatographs. Mine Safety Appliance Co. 96
Reagents. Catalog/price schedule offers concise listing of reagents, accessories, and equipment for air pollution analysis. 97 Research Appliance Co. Waste water. Booklet gives practical six-step approach to solving industrial waste water pollution problems and describes modular solutions to a variety of liquid waste problems such as phenols, oily water, meat packing, liquor, toxic metals, and refining wastes. Fram Corp. 98 86 Environmental Science & Technology
Trace metals. Eight-page brochure describes multiple anodic stripping analyzer for detecting trace metal pollutants. Environmental Sciences Asso99 ciates, Inc. Sampler. Technical bulletin describes sampler that can be programmed on a flow and/or time basis to provide accurate records of fluids. BIF SaniTrol, 100 Inc.
Tertiary treatment. Information on tertiary waste water treatment is contained in literature from company which built the world’s first tertiary sewage treatment plant. California Filter Co. 101
Methods guide. Comprehensive listing of more than 200 current analytical methods involving company’s 27 sensing electrodes. Full specs of electrode capabilities are included. Orion Research 102 Inc. Metal finishing. “Environmental Quality for Metal Finishing Exhausts” is fourpage summary which defines common contaminant loading, and presents data tables on such topics as mist generation in various plating processes, solution concentrations, operating temperatures, and other parameters of interest in pollution control. Tri-Mer Corp. 103
Analysis service. Four-page booklet describes effluent analysis services offered to clients in the United States. Routine analyses include BOD, COD, heavy metals, and pesticides. Nalco Chemical Co. 104 Combined treatment. Bulletin describes Rex Satellite Plants for treatment of combined sewer/storm water overflows. Rex Chainbelt, Inc. 105
Apparatus. Catalog lists equipment for analyzing environmental pollutants. Emphasis is on glassware, but chemicals and other test equipment are also listed. Tudor Scientific Glass Co. 106
Engineering expertise. Release describes engineering capabilities, products, and services of pollution control firm. Peabody Engineering 107 Instruments. Catalog lists instruments for pollution monitoring. Includes price list and equipment specs. National Environmental Instruments, Inc. 108 Grit removal. Bulletin describes Hydrogritter system for grit removal and gives plant sizing methods and data tables. 109 Envirotech Sewage treatment. Brochure describes package of plans and operational data for manufacturing and installing extended aeration, domestic sewage treatment system for commercial use. Stanley M. Strine Design Associates, Inc. 110 Wet grinder. Literature describes compact wet grinding waste disintegrator which requires no accessories for installation. Available with five different inlet fittings to suit various connection requirements. BIF SaniTrol, Inc. 111 Air filter. Data sheet details operating data on industrial air filters. Cyclonic dust separation combined with filtration through felted tubes produces 99.9f efficiency. Hart-Carter Co. 112
Sludge disposal. Booklet describes “Solidfixation” systems which convert sludge, liquid, or semisolid pollutants into inert landfill. Applications are cited for dissolved metals, tars, oils, and other residues as well as radioactive wastes. 113 Conservall, Inc. Reverse osmosis. Booklet describes water treatment using reverse osmosis and gives details of company’s Helical Tubular Segment which provides key to system’s simplicity and efficiency. Philco114 Ford Corp. Controls. Bulletin describes expanded line of automatic valve controls including cage-trim-type valves, globe valves, cryogenic valves, throttling ball valves, and valve positioners. ITT Hammel115 Dahl. Need more information about any items? I f so, just circle the appropirate numbers on one of the reader service cards bound into the back of this issue and mail in the card. N o stamp is necessary. Circle NO. 21 on Readers’ Service Card
Volume 6, Number 1, January 1972 87
