Laserfiche WebLink
10 . 8 FERTILIZER <br /> The initial fertilizer application currently consists of <br /> a 18-46-0 (N-P-K) fertilizer at 400 pounds per acre. For certain <br /> potassium deficient rock waste materials, an additional 200 pounds <br /> per acre of 0-0-60 (N-P-K) are applied. Maintenance fertilizer <br /> application consists only of ammonium nitrate ( 33-0-0 ) at variable <br /> rates around 100 to 200 pounds per acre , depending upon the need. <br /> The Urad Mine has found that sewage sludge is a good <br /> alternative source of nitrogen. They used the sludge on rock <br /> waste material along with wood chips. Depending upon availability <br /> of properly digested sewage, Climax may also utilize the method. <br /> 10 . 9 SEWAGE SLUDGE <br /> The possibility of utilizing sewage sludge for <br /> revegetation on the Climax property is being resolved by chemical <br /> analysis and research plots. <br /> Reluctance to use the sludge is based upon past milling <br /> experiences with molybdenum recovery using industrial water <br /> contaminated with Climax domestic sewage when the town of Climax <br /> existed. Certain stear. ic acid compounds within the sewage were <br /> able to effect a reduction in the recovery process of molybdenum. <br /> Currently it is not known if processed sewage sludge <br /> would have similar compounds capable of being leached from <br /> reclamation sites and eventually contaminating the industrial <br /> water. supplies. <br /> If processed sewage sludge is tested to be free of such <br /> compounds or at least not soluble and incapable of reducing <br /> molybdenum recovery then the next problem would be to obtain a <br /> source of properly digested or stable sewage sludge that is <br /> economically feasible . <br /> A heavy stable sludge such as one anaerobically <br /> digested , is desirable since it would present no leaching <br /> problems. The City of Denver uses such a process . <br /> Sewage obtained from Summit County is the most promising <br /> source , however , it may need to be stabilized since it is an <br /> aerobically digested sludge. The State of Connecticut has proven <br /> 10-7 <br />