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the effectiveness of a physical-chemical treatment to provide a <br /> heavy, stable sludge from aerobically digested sewage. The <br /> treatment includes adding 200 to 300 pounds of lime to each one <br /> ton of dry weight sewage so as to raise the sludge pH to 12. 5 . <br /> Such a process complexes heavy metals, encourages <br /> N-cycling bacteria and discourages pathogens, creates no odors or <br /> leachates, and increases the dry weight percentage. <br /> If proper sewage sludge sources are indeed developed, <br /> and deemed feasible , then Climax will use the material where <br /> suitable in its reclamation program. <br /> 10 .10 TAILING, WASTE DUMP AND OPEN PIT RECLAMATION RESEARCH <br /> Site specific reclamation plans for Climax' s major <br /> disturbances as specified later in this section are provided as <br /> commitments by Climax to reclaim the sites to the satisfaction of <br /> both Climax and the members of the Reclamation Board. However. , <br /> Climax would like to qualify the methodology provisions of meeting <br /> these commitments . Outcome of research plots , availability of <br /> materials and new technologies may provide or dictate alternate <br /> methods more reliable , efficient or suitable to meet the <br /> requirements of reclamation. Naturally, Climax would desire the <br /> flexibility to opt for an advantageous alternative, but would <br /> officially do so only by submitting a technical revision to the <br /> Reclamation Board . Following are some of the bases which provide <br /> confidence and promise to Climax' s reclamtion plans or from which <br /> Climax anticipates promise. <br /> During the last eleven years , Climax has been involved <br /> in researching methods and procedures of revegetating tailing . <br /> Our research indicates that tailing can be revegetated as long as <br /> a fertilizer and liming maintenance program exists. The required <br /> duration of this maintenance program is not presently known. <br /> Additionally, these vegetative plots have not been properly <br /> exposed to normal and excessive winds that would be experienced on <br /> a large tailing arQ; such as Robinson Tailing Pond. This research <br /> will continue . <br /> 10-8 <br />