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Page 2 <br /> OctoUer 13 , 197� <br /> However , vezy snall acnouni.s ot barivm ion, carbon, cadmium ion , calciuT <br /> ion, �elatin, and mangane�fe ion may be zemoved fro;n some Ko�.ak products <br /> during processing. If it is necessary to kncw the eoncentration of <br /> metal ions in solution, they may be analyzed< Testing laboratories <br /> offer analytical service. If a sample is to be analyzed, it is I <br /> important that the sample be representative. <br /> For the purposes of calculation it has also been assvmed there are no � <br /> intezactions of chemicals . Actually, some may occur, the co�non one <br /> in color processing being the reduction of ferricyanide to ferrocyanide <br /> by other waste solutions� However, all interactions combined are not i <br /> expected to have any sizable effect on the composition of the overall � <br /> coastc. <br /> If other wastes are being discharged along with the waste photographic � <br /> sol.titions , the composition of the overall effluent will be affected <br /> accordingly. 7'here may be sanitary wastes, cleaning wastes , water i <br /> �lischarged during processing start-up, etc. If the total of those <br /> �aa�te solutions can Ue approximated, the data on ehe printout can be <br /> revi.sr_d accordingly, <br /> 7he buLlc oP the chemicals in photographic processing are amendable with <br /> biological treatment, The remainder of the chemicals do not have a <br /> cieleterious effect on a large secondary Creatment planta Proeessing <br /> cliemicals that aLe not degraded in a large municipal or other biological <br /> treatment plant may ue diluted to unobjeetionable concentrations. If <br /> inplant treatment is required, a reputable consulting engineering fixm <br /> should be consulted prior to installing +iny type of treatment, to help <br /> insure that all applicable local , state, a�d federal regulations would <br /> bc met by the treatment system. In anycase, all possible in-plant <br /> pollution abatement teehniques such as squeegees should be used to <br /> minimize the waste load< <br /> The ferrocyanide concentration will be reduced significantly when the <br /> l Ektaprint C process is replaced by Elctaprint 3, and also by regenerating <br /> the Ekraprint R bleach. A method is available for regeneration of the <br /> Ektaprint R bleach and can be obtainea through the local Kodak sales <br /> representative. Regneration of the Flexicolor bleach will lower the <br /> BODS . <br /> iAcidi�ionally, the water analysis supplied by Mr. Barnes indicates that <br />, tLe ir.�n contenL of the L-reated water is too high at 0. 2 mg/1. Iron <br />� <br /> I <br />�� � � � <br />