TABLE V-1 1. Process Water Intake by Chemical 



and Allied Product Industries With Total Water 



Intake of 20 or More bgy During 1964 



Process water intake 



Industry group and industry Bgy 



2812 Alkalies and chlorine 16 2.8 



2815 Intermediate coal tar 



products 9 1.6 



2818 Organic chemicals, n.e.c.^— 314 55.5 



2819 Inorganic chemicals, n.e.c.^ 74 13.3 



2821 Plastic materials and 



resins 25 4.4 



2822 Synthetic rubber 11 2.0 



2834 Pharmaceutical prepara- 

 tions 3 0.5 



2841 Soaps and other deter- 

 gents 2 0.4 



2851 Paints and allied 



products 1 0.2 



2861 Gum and wood 



chemicals 2 0.4 



2871 Fertilizers 32 5.6 



2892 Explosives 2 0.4 



Subtotal 491 87.1 



Nonlisted industries = 73 _ 12.9 



28 Chemicals and allied 



products 564 100.0 



1 Not elsewhere classified. 



2 Although the industries selected for study probably deter- 

 mine the range in values of the various quality criteria for 

 process waters for chemical and allied products, it is noted 

 that 3 industries (SIC 2823, Cellulosic Man-Made Fibers; 

 SIC 2824, Organic Fibers Noncelluloslc;- and SIC 2891, Glue 

 and Gelatin) use 23, 8, and 6 bgy, which is more than 

 of the industries under consideration. 



TABLE V-12. Quality Characteristics of Surface 



Waters That Have Been Used by the Chemical 



and Allied Products Industry (SIC 28) 



[Unless otherwise indicated, units are mg/l and values are 



maximums. No one water will have all the maximum values 



shown.] 



Characteristic 



Silica (SiOz) „. C) 



Iron (Fe) 5 



Manganese 



(Mn) 2 



Calcium (Ca).-. 200 

 Magnesium 



(Mg) 100 



Ammonia (NHs). C) 

 Bicarbonate 



(HCO3) 600 



Sulfate (SO.) .. 850 



Chloride (CI) _.. 500 

 Dissolved 



solids 2,500 



Characteristic 



Suspended 



solids 10,000 



Hardness 



(CaCOa) 1,000 



Alkalinity 



(CaCOs) 500 



pH, units 5.5-9.0 



Color 500 



Odor 



BOD (O2) 



COD (O2) 



Temperature ._ 

 DO (O.) 



1 Accepted as received (if meeting total solids or other 

 limiting values); has never been a problem at concentrations 

 encountered. 



NOTE. — Application of the above values should be based on 

 Part 23, ASTM book of standards (1), or APHA Standard 

 methods for the examination of water and wastewater (5). 



Quality Requirements of Water at Point of Use by Chemical and Allied Products Industry (SIC 28) 



that normally should not be exceeded. Quality of water prior to the addition of substances used for internal conditioning.] 



' No practical limit — any concentration can be handled. 

 ' Controlled by treatment for other constituents. 



201 



