subject: Proper Management On Mining Dust [print this page] For the last 20 years, it has seen a huge rise in the amount of attention focused on environmental and community engagement issues surrounding the mining industry by the media, the general public and of course of mining companies themselves. Dust production which mainly applies raymond mills has long been a critical human health issue for mining companies. Recently however, dust effects on surrounding ecosystems have been discussed and investigated, fuelling further debate about sustainable environmental management in mining Mechanical and physical disturbance associated with mining activities, whether it is created by blasting and digging of soil and rock, transportation of materials or processing of ore, can create dust problems. Dust is generated throughout the whole life of mine. A lot of dust particles get suspended in the air and potentially affect the surrounding vegetation, said Gillian Turner, of the University of Western Australia, Emerge Associates and Crosslands Resources. Turner is currently conducting a study for Crosslands Resources on dust loading and its effects on plant physiology. She says that so far, research and literature have demonstrated that dust loading can have a negative impact on plant health and function. However, to complicate issues, Turner says that various types of dust have different effects on plants. She says that dust effects can be chemical and/or physical in nature. Chemically active dust, such as highly alkaline limestone dust or a highly acidic dust, can affect the pH of the soil and the plant surfaces and thus become toxic to the plant. If the dust, however, is not chemically active, the effects may be physical in nature, for example leaf surface abrasion or blocking of the plants stomata... It really depends on what type of dust is produced, Turner said. cone crusher:http://www.hxjqchina.com/product-list_19.html concentrator table price:http://www.hx-china.com/21.html Whilst her research is ongoing, Turner says that scientific literature has demonstrated there are a number of impacts dust can have on plants. Overall however, the cumulative impact of dust loading is a reduction in the plants photosynthetic abilities and therefore growth. "Dust abrading leaf surfaces, dust blocking stomata of plants, dust increasing the amount of absorbed incident radiation - These are just a number of different impacts [dust can have] on vegetation and plants. But overall, the effects seems to be a reduction in photosynthetic abilities, explains Turner. It is uncertain whether the physical effects of dust on plant physiology are permanent, because plants seems to recover after rainfall, which may wash dust off leaf surfaces and thus restore photosynthetic capacity. Turners research may change the way environmental managers perceive dust since its findings may indicate that dust should be considered as an important environmental factor in mining operations.As the professional manufacturer of complete sets of mining machinery, such as vsi sand maker, Henan Hongxing is always doing the best in products and service.
