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02h0058786 20141224083145.0 s1988 pauab fr |000|||eng | CNY200.00 NGL a710 ; a875.5 Pahlman, J. E. Use of lignochemicals and humic acids to remove heavy metals from process waste streams / by J. E. Pahlman, S. E. Khalafalla. Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1988. 9 p. : ill., maps ; 28 cm. Report of investigations (United States. Bureau of Mines) ; 9200 Sewage ; Sewage ; Metal wastes. ; Mineral industries Purification ; Heavy metals removal. ; Purification ; Filtration. ; Waste disposal ; Environmental aspects. aKhalafalla, S. E. Report of investigations (United States. Bureau of Mines) ; 9200. aCN bNGL 010001 P 720.66 R29u v9200 ; rCNY200.00 ; h1 whx016