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GHD glätteisen günstig Metal Mines of heav

 
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PostWysłany: Pią 9:17, 12 Lis 2010    Temat postu: GHD glätteisen günstig Metal Mines of heav

Metal Mines of heavy metal Pollution and Remediation


Reasonable, the use of scientific methods and coordination of systems development, technology, and build up economic construction, mining and social development linked to the ecological system, improve the ecological environment and promoting sustainable economic and social development. (3) overall planning, comprehensive management, the principle of local conditions. Governance work should be carried out overall planning, multi-pronged, comprehensive management. From reality, according to local conditions, focused, step by step. According to the actual situation of mine, drawn by easy, simple, low-cost soil remediation technology, and combination of technologies complement each other. Soil remediation process, not damage to the surrounding vegetation, and not interfere with normal life in the surrounding area of biological order, and in reducing the heavy metals in soil at the same time, prevent the migration and transformation of pollutants in tailings into the water, air environment and food chain, the protection of human health. 4.3 Metal Mining Control of soil pollution remediation of heavy metal pollution at home and abroad means be summarized in three kinds, one change in the presence of heavy metals in the soil form, so fixed, reducing its mobility in the environment and bio- utilization; the second is to remove heavy metals from the soil; third is to contaminated areas and contaminated areas are not isolated. Governance around these 3 ways to repair technologies used in physical separation of the physical repair, fixed / Stabilization Remediation, low temperature freezing fix, electrokinetic remediation techniques. Chemical remediation technology has the chemical leaching techniques, chemical reduction and reductive dechlorination remediation, soil remediation technology performance improvement. Phytoremediation has plant extracts, plant volatiles and plant stability fixes. By physical or chemical techniques to control soil heavy metal pollution, the biggest problem is not effectively prevent the spread of contamination, incomplete removal of contaminants and expensive. Stable repair is the use of plant uptake and rhizosphere of plants the role of pollutants in the soil into a relatively harmless substances. Phytoextraction is the use of heavy metal accumulation ability of plants through the process of absorption and operation will be transferred and stored in the ground metal parts,GHD glätteisen günstig, final harvest shoot through the focus on to achieve the reduction of heavy metals in soil. Restoration of plant volatiles in the soil through the plants absorbed into the body of heavy metals into some volatile form of leaves and other parts of volatiles from the soil and plant surfaces. Phytoremediation technology is that the stability of contaminated soil wind erosion, water erosion and to prevent secondary pollution of groundwater at the same time, improve soil structure, soil fertility so that contaminated soil have been restored, a small disturbance field of governance, social and ecological well-integrated and easy for the public benefit accepted, especially in governance, low cost, suitable for large-scale soil pollution control, treatment of heavy metal contaminated soil with a permanent effect. 4.4 Metal Mining should pay attention to soil pollution fix several problems at the current operating conditions of production in metal mines, mining widespread heavy metal contamination of land area, serious pollution, environmental pollution control investment and limited, so in the remediation of contaminated soils should pay attention to the following questions. First of all contaminated soil should be relatively low capital investment based on phytoremediation. Second, the conditions of each mine and the varying degrees of pollution, in the selection of specific repair techniques before, to make the necessary site assessment and soil pollution status. The third based on soil pollution, the plant with different repair plant, can enhance the repair and the effect can save repair asked. The fourth difference between physical and chemical properties of soil, the land is not conducive to plant growth, you can first use of chemical remediation technology performance improvement of soil, then planted a comprehensive remediation plant. References [1] Horse Yu, Yi Guodong. On the development and utilization of non-ferrous mineral resources and its environmental problems of [J]. Guangdong Nonferrous Metals, 2005,15 (4) :4-8. [2] Chen Bridge, Hook, Wang Jianguo, et al. Land mines and sources of pollution hazard [J]. Land resource,ghd deutschland, 2004,21 (4) :51-53. [3] Xiao Pengfei, Li Fa Yun, Fu Baorong, et al. Phytoremediation of heavy metal pollution and its research [J]. Liaoning University: Natural Science, 2004,31 (3) :279-283. [4] RESEARCH IN AREAS. Phytoremediation of heavy metal pollution and Technology [J]. Heilongjiang Hydraulic Engineering College, 2006 (1) :102-104. [5] Qi-Xing Zhou,ugg boots sale, Yu-Fang Song. Principles and methods remediation of contaminated soils [M]. Beijing: Science Press, 2004. [6] TRANSACTIONS,ugg botas, Ling Haiming. Metal mining and contaminated land remediation technology case studies [J]. Metal Mine,ghd haarglätter, 2003 (6) :53-56. [7] Xiao-Rong Wang, Guo Hongyan, Lin Ren Zhang, et al. Remediation of contaminated soils should be concerned about several issues [J]. Agricultural Environmental Science, 2006,25 (2) :277-280. Mouth
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