Document npXxKRRrb55073V9d2B2Doqw8

Monsanto fnau u,ocitiowl o*Tt : ACFtNCNCS Anni3ton, Alabama ce. January vS, 1967 KERCuKi IN FLAN'T IFFLOcNT TO SNOW CHEEK W. B. Papageorge L. L. Faulkner G. W. Miller v ' ? a n cf pv TO "'a L. C. Fuhrraalster i In a meeting held January 5, 1967, on methods of reducing the mercury concent in Che waste stream leaving the plant, several objectives were set and work, has begun, immediately to put into effect a plan to in vestigate mercury concentrations in Snow Creek at its confluence with Chcccolocco Creek, a long range method for reducing the mercury levels end an immediate means of reducing mercury levels. Those ia attendance were Gerald Miller, L. L. Faulkner and B. G. Coley. --, l Listed below are the steps that are to be taken; 1. The total plant effluent sample will be analysed for mercury over a 2 week period. At the same time a sample will be taken from ' Snow Creek at its confluence with Choccolocco Creek and analyzed for mercury. This will determine if the mercury concentrations are reduced by dilution. 2. Sample will be taken from the call end boxes (this stream contains 20 ppm mercury and was the highest concentration found in any stream). The lab will conduct studies to determine if the mercury can be precipitated by chemical additions. If this can be done, further investigation will be made as to how this can be done at the Chlorine plant. . 3. Hava the chlorine department cut back as much" as possible on- the flow from the call end boxes. In analysts of samples taken earlier it was found that mercury concentration did not vary with flow, therefore, a lower flow vjill cause a reduction in. total pounds of mercury leaving the plant. 4. Dispose of, by burial, the sludge collected from che backwash ofthe caustic filter. Thie filter is backwashed bi-weekly and the material stopped by the filter is very high in mercury. This would be one way, although small, of reducing the total mercury loss. S ~i. *-r-vc iL. * BGC:kd Gene Coley lOnCV. ESW 10 7013 HARTOLDMONO017867