Fig. 1 Relative hydraulic conductivity change during dilute acid leaching (
, H2SO4, pH 4, 0.1 molc m-3; 
, H2SO4, pH 3, 1 molc m-3; 
, HNO3 pH 4, 0.1 molc m-3; •, HNO3 pH 3, 1 molc m-3) .
Fig. 1 Relative hydraulic conductivity change during dilute acid leaching (, H2SO4, pH 4, 0.1 molc m-3; , H2SO4, pH 3, 1 molc m-3; , HNO3 pH 4, 0.1 molc m-3; •, HNO3 pH 3, 1 molc m-3) .