METHOD FOR ECOLOGICALLY SAFE REFUSE DISPOSAL Russian patent published in 2007 - IPC E21C41/26 

FIELD: mining, particularly safe refuse disposal during deep laying kimberlitic pipe excavation in extreme northern permafrost zone conditions.

SUBSTANCE: method involves constructing protection dam of overburden and creating water-tight screen of loamy soil; stacking waste and rock mass of different types inside protective dam; dumping rock in layers along with layer slopes and berms creation. Each protective dam layer is formed along finite outline. Water-tight screen is covered with zeolite layer to neutralize poisonous gas. Rock saturated with brine is stacked inside formed bowl in direction from layer periphery towards center thereof. As layer is filled with brine-saturated rock the layer is covered with zeolite layer. Then upper layer is formed in the same order. After all layer dumping termination slopes are treated to impart variable geometry thereto and the slopes are covered with sapropel. Dump has elliptical configuration oriented depending on wind rose.

EFFECT: increased efficiency and safety of aggressive brine-saturated rock dump stacking and storage.

1 ex, 2 tbl, 5 dwg