Contemporary usage Hydraulic mining

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modern hydraulic mining monitor in use


in addition use in true mining, hydraulic mining can used excavation technique, principally demolish hills. example, denny regrade in seattle largely accomplished hydraulic mining.


hydraulic mining principal way kaolinite clay mined in cornwall , devon, in south-west england.


rand gold fields

on south african rand gold fields, gold surface tailings re-treatment facility called east rand gold , uranium company (ergo) has been in operation since 1977. facility uses hydraulic monitors create slurry older (and consequently richer) tailings sites , pumping these long distances concentration plant.


the facility processes 2 million tons of tailings each month @ processing cost of below us$ 3.00/t (2013). gold recovered @ rate of 0.20 g/t, low yield compensated extremely low cost of processing, no risky or expensive mining or milling required recovery.


the resulting slimes pumped further away built-up areas permitting economic development of land close commercially valuable areas , covered tailings. historic yellow-coloured mine dumps around johannesburg rarity, seen in older photographs.


uranium , pyrite (for sulfuric acid production) available recovery process stream co-products under suitable economic conditions.








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