acid leaching plant for silica sand. Acid Rain and Acid Deposition OceanWorld acid leaching plant for silica sand,Sep 3, 2012 Left: Coalfired power plants emit large quantities of acid pollutants into the If the soil is mainly quartz, such as sand, it is resistant to weathering and plantnutrient cations Ca2+, Mg2+, and K+, it increases the ...