While Americans remain unfamiliar with fuki, Japanese farmers grow vast amounts of the vegetable (also known as sweet coltsfoot or giant butterbur) for their rhubarb-like stalks. Another colony-former, fuki grows where few other vegetables will---in wet, dark places. The leaves grow quite large, and the entire plant takes up a good deal of room, growing 3 to 6 feet high and wide. After harvesting the stalks, cut them into 6-inch pieces, blanch to loosen the outer skin, then peel.
Summary Acid mine drainage (AMD) refers to the outflow of acidic water from a mining site. In most cases, this acid comes primarily from oxidation of iron sulfide (FeS2, also known as pyrite or fool's gold), which is often found in conjunction with valuable metals.
The acid willleach from the rock as long as its source rock is exposed to air and water and until thesulphides are leached out â a process that can last hundreds, even thousands of years. Acid iscarried off the minesite by rainwater or surface drainage and deposited into nearby streams,rivers, lakes and groundwater.rocessing Chemicals PollutionThis kind of pollution occurs when chemical agents (such as cyanide or sulphuric acid used bymining companies to separate the target mineral from the ore) spill, leak, or leach from themine site into nearby water bodies. These chemicals can be highly toxic to humans andwildlife.4.