Mine waste water purification system of environmental protection energy saving renovation

Paper Keywords: energy-saving environmental protection of mine waste
Abstract: The treatment of coal mine waste water purification, recycling, and reducing emissions to achieve compliance cost analysis of mine waste water purification through technological innovation, and reduce the amount of cleaning agent input to achieve the purpose of environment protection and energy reduction.

Mine wastewater purification for recycling and reuse, is the efficient use of water resources, water consumption is reduced, the basic characteristics of reducing pollution emissions, in line with scientific development concept and the basic concept of sustainable development, environmental protection work of traditional a fundamental change. effective use of water resources and protection of the environment, reduce resource consumption and environmental costs in order to obtain greater economic and social environmental benefits.

1 mine wastewater
Eagle Mountain is a vertical shaft coal mining, mine waste water mainly refers to the mined area and roadway emission and exploitation of the natural process of water sprinklers, dust, grouting and hydraulic equipment produced with coal dust, sediment in the water. After detected Mine is different from other industrial waste water, the main characteristics of groundwater is toxic and harmful substances were not exceeded, the water contains some of the coal mine, mud, sand, oil, and a small amount of suspended solids, and its water quality is not the destruction of natural .

2 mine waste water purification system
Eagle Mountain Mine was built in the late 20th century, 60, is a third-line operation of the mine during the construction period, many of the debts of infrastructure, especially in the environmental facilities are almost zero, on the mine waste water treatment has been based on direct emissions .

As the state environmental protection efforts continue to increase, the further improvement of environmental awareness, companies have gradually recognized that the mine waste is both a source of pollution with industry characteristics, is also a valuable water resources, both direct discharge of untreated environmental pollution caused by the river, but also caused a lot of water wasted.

recycling of mine waste water purification and production of both solution mining water of life, can realize the social benefits of protecting the environment. In the environmental protection departments at higher levels of support and help of the mine were built in 1990 and 2006, 2 sets of hours of processing capacity 300 and 500 when the mine-resistant water purification system to achieve the mine water recycling.

Mine waste water purification system is the use of diatomaceous earth and the density of mine wastewater in different physical principles of mine waste water purification. Diatomite enable enterprises to increase the amount of mine waste water purification with the increase in cost. Therefore, the time to improve mine waste water purification to reduce the cost of the mine waste water purification has become urgent to solve the problem.

3 energy-saving technological transformation
To effectively achieve the purpose of energy saving, waste water purification system fully operational mine the effect of the purification system has been put into use, over the years and mine mine discharge waste water purification of the time and dosage were analyzed and compared, after repeated experiments contrast, in May 2008 on the implementation of water purification systems transformation. through the install process to change the pump and increasing the pipeline, the water purification process will be put mine Pharmacy (diatomaceous earth) precipitated by the work pool of sludge discharged into the sewage with the mud pool, the pool of sludge sedimentation period of time, the middle separation of sludge containing the natural pool of pharmaceutical residues by upgrading the sewage pump to return to the mine water pool of the population, with the mine water for secondary physical reactions, make full use of agents. purification tower process shown in Figure 1.


4 Evaluation of the economic environment
Water conservation is an important part of the development of circular economy, coal mine waste water purification and reuse is not only a very social environment, benefits, back to good economic enterprises.

Waste water purification system through the transformation of technological innovation to further enhance the effect of energy saving enterprises. After running experiments and June 2007 compared with the average mine water inflow than in June 2007 increased by 60.8%, water purification longer than mine over the same period last year, an increase of 135 h, but the use of diatomaceous earth to reduce the 716 packages per hour, saving 3.39 package, the monthly savings diatomite 17 184 kg, at 1 400 yuan / / t per month savings of pharmaceutical water purification cost 24,000 yuan, saving 60.56% dosage, the energy saving effect is very obvious. reposted elsewhere in the Research Papers Download http://www.hi138.com