METHOD FOR STARTING WATER SPRAYING IN COPPER SULPHIDE ORE HEAP BIOLEACHING

摘要

Disclosed is a method for starting water spraying in copper sulphide ore heap bioleaching, comprising the following steps: 1) judging the feasibility of starting copper sulphide ore water spraying: if the acid production potential of the ore is greater than the acid consumption potential, water spraying is started; and 2) starting the water praying: moisturising is performed with water in the heap construction process of the copper sulphide ore, and after the completion of the heap construction, spraying is performed with water, when the pH value of a leach liquor 3.0, circulating spraying is performed, and when the pH value of the leach liquor is 3.0, acidophilus iron and sulphur oxidation microorganisms are inoculated in the leach liquor as a spraying liquor, and circulating spraying is continued, to gradually increase the concentrations of acid, iron and copper in the system solution, so that the starting of the copper sulphide ore heap bioleaching is achieved.