Molybdenum pollution needs much attention
With the wide application of molybdenum materials in the market, the word of molybdenum pollution also gradually entered people's field of vision.
The molybdenum in the environment has two sources. One is that molybdenum is released from the rock by weathering. There are about 1000 tons per year into the water and soil, and they migrate in the environment. The inhomogeneity of molybdenum results in some area of molybdenum deficiency and appearing "endemic". What’s more, this also causes some area molybdenum containing high and the emergence of "gout" (such as the Soviet Armenia).
More and more widely application of molybdenum in human activity and burn mineral fuels containing molybdenum (such as coal), so the circulation of molybdenum in the environment will be increased. The whole world molybdenum yield is 100000 tons per year; molybdenum of burning into the environment is 800 tons per year. And the circulation quantity joined by human activities is more than natural circulation quantity. The most application of molybdenum is the metallurgy, electronics, missile and space, atomic energy, chemical and other industrial and agriculture. At present, the research on molybdenum pollution isn't still enough.
The migration of molybdenum in the environment is related to oxidation in the environment, reducing conditions, pH and the effects of other medias. The oxidation of water and soil is higher, the alkaline is stronger, molybdenum is easily formed into MoO Han ion; plants can absorb this state of molybdenum. The acidic of environment increased or the reducibility increased, Mo will be easily changed into the complex ion, finally, it will form MoO Xun; this state of molybdenum is easy to be fixed by clay, soil colloids and humic acid, and then lose activity, so it can't be absorbed by plants. In the ocean, the reduction environments of deep-sea make Mo adsorbed by organic matter and then wrapped it in colloid containing manganese, and ultimately form concretion sinking into the seabed, out of the cycle in the biosphere.
The molybdenum in the environment has two sources. One is that molybdenum is released from the rock by weathering. There are about 1000 tons per year into the water and soil, and they migrate in the environment. The inhomogeneity of molybdenum results in some area of molybdenum deficiency and appearing "endemic". What’s more, this also causes some area molybdenum containing high and the emergence of "gout" (such as the Soviet Armenia).
More and more widely application of molybdenum in human activity and burn mineral fuels containing molybdenum (such as coal), so the circulation of molybdenum in the environment will be increased. The whole world molybdenum yield is 100000 tons per year; molybdenum of burning into the environment is 800 tons per year. And the circulation quantity joined by human activities is more than natural circulation quantity. The most application of molybdenum is the metallurgy, electronics, missile and space, atomic energy, chemical and other industrial and agriculture. At present, the research on molybdenum pollution isn't still enough.
The migration of molybdenum in the environment is related to oxidation in the environment, reducing conditions, pH and the effects of other medias. The oxidation of water and soil is higher, the alkaline is stronger, molybdenum is easily formed into MoO Han ion; plants can absorb this state of molybdenum. The acidic of environment increased or the reducibility increased, Mo will be easily changed into the complex ion, finally, it will form MoO Xun; this state of molybdenum is easy to be fixed by clay, soil colloids and humic acid, and then lose activity, so it can't be absorbed by plants. In the ocean, the reduction environments of deep-sea make Mo adsorbed by organic matter and then wrapped it in colloid containing manganese, and ultimately form concretion sinking into the seabed, out of the cycle in the biosphere.
