Printed Circuit Effluent Treatment

Figure Eleven (11) illustrates a total printed circuit effluent treatment system utilizing reverse osmosis to recover purified water from mixed rinses and the airscrubber. Bath dumps and reverse osmosis concentrate are chemically treated, producing a sludge for landfilling and effluent suitable for discharge.

Figure 11, Printed Circuit Effluent Treatment System...

Fig. 5 Total organic composition (resin and fatty acids, biocides and surfactants) and percentage of bioluminescence inhibition of several types of waters (recycle, Kraft, print board in open and closed circuit) submitted to primary or biological treatment. Identification letters A=effluent B=recycle untreated C=recycle primary treatment D=Kraft untreated =Kraft biologically treated F=print paper untreated G=print paper biologically treated H=board untreated J=board biologically treated /=board closed loop and K=board biologically treated...

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