Construction on the Analysis of solid waste pollution prevention and control of resources

Abstract: With Economic development, the construction of China has flourished, to the real estate industry as the main body, a variety of urban and rural construction projects accounted for the majority of urban construction projects. The construction industry has brought prosperity and development is Economic development , as well as a large number of solid waste pollution. This article from the current city building solid waste disposal in the present situation, the use of resource control methods to solve this problem, for the construction of solid waste pollution to provide a little inspiration to completely resolve.

Keywords:: solid waste, recycling, waste utilization
Construction of solid waste, generally refers to structures built or extended, the waste generated during demolition, structures including buildings, roads, bridges and so on. Its composition and region-specific structural types of structures in stages of development, Economic development and social consumption Related .1 With the rapid Economic development and urbanization process accelerated, demolition and renovation of the old city and new city construction which generated a lot of construction solid waste, solid waste, mainly those of broken concrete, brick, asphalt and other inert materials based , accounting for more than 80% of the total, to the urban ecological environment in China caused serious pollution, seriously affecting the health of urban residents.

First, the construction of solid waste pollution prevention and control methods
(A) Construction of solid waste pollution
Since reform and opening, China's continued construction of various projects in the construction process because of the planning and design appear in the process of building and construction waste is not a scientific and thorough settlement plan, but the open-air heap, after construction of centralized treatment approach However, after the construction side of the construction will often forget to deal with construction waste generated, in a timely treatment plan simply be discarded in the suburbs, resulting in a serious solid waste pollution. And in Economic development, many people focus only on economic growth, while ignoring environmental protection, resulting in some capitalist countries embarked on the local "pollution first, treatment later," the old road, leading to more serious solid waste pollution, now has become an obstacle to urban economic development an important factor.

(B construction of solid waste pollution in the current approach
Since many people now do not have the concept of environmental protection in the handling of solid waste is taken to the practice of simple and crude, that is not the case of solid waste treatment and transported to the Government in formulating the garbage dump, or whatever to the district or rural find a place to open dumps or buried in situ approach. This approach not only can not solve the problem of solid waste pollution, and after piling up or buried inside the toxic and hazardous and radioactive substances to the surrounding environment will cause secondary pollution. And this treatment approach to high cost of land acquisition costs, the total amount of trash each year a few. So can completely find a way to solve the solid waste pollution, to avoid secondary pollution, solid waste and create economic benefits by using the current treatment of solid waste pollution is an urgent need.

Second, the construction of solid waste pollution prevention and control of resources
Construction of solid waste pollution prevention and control of resources is necessary to change the understanding of solid waste, solid waste will be building as a resource for secondary use of solid waste, which addresses the problem of solid waste pollution, can create a certain economic benefits approach. now in some areas has begun construction of solid waste pollution prevention and control of resources trying to obtain good results, but this control method does not generally carry it. Construction of solid waste pollution prevention and control of resources is divided into two steps, that is, the solid waste classification and selection of appropriate processing technology.

(A solid waste
The main building of solid waste according to material type, or the constituents were the main building of cement blocks can be divided into waste, metal waste and other solid waste garbage. In the classification based on the pretreatment of construction waste, that is, according to the classification of solid waste will be stored building in order to facilitate the next phase of technical processing.

(B construction of solid waste pollution prevention and control of resources approach
1. Recycled aggregate concrete
Recycled aggregate concrete mainly refers to the use of construction solid waste, some of the concrete blocks, stones and other stones in place of aggregate concrete to enhance the hardness and strength of a technology of concrete. On construction waste in the recycling of waste concrete as recycled aggregate, one can solve a lot of waste concrete and the resulting emissions of the deteriorating ecological environment and other issues, on the other hand, can reduce the consumption of natural aggregate, a fundamental solution to the increasing scarcity of resources and the environment Links to the destruction of problem .1 download free paper http://www.hi138.com 2. the comprehensive utilization of waste bricks
Of waste bricks in the construction process, if the shape is complete, and strength, there is no significant change in hardness, you can re-use them as bricks. If you have broken, you can take to crush, as the bone of recycled aggregate concrete materials used. or re-broken bricks and water mixing, the mold once again by the pressure molding, supported by high-temperature steam steam-cured bricks, although the high cost of this method, but the secondary production of steam-cured brick with red brick in the intensity and hardness are almost completely different types of construction can be applied to create economic benefits. Here you can choose the domestic enterprises in Europe, Japan and other countries commonly used type of mobile sets of container handling equipment, these devices use more jaw crusher, producing approximately 150 t / h, after crushing the aggregate diameter of 0-60 mm, low cost, easy to scale.

3. The comprehensive utilization of waste ceramics
The construction of solid waste in the waste ceramics, can be broken into sand by the way, its broken into 5-10mm, this is because the construction of solid waste in the waste ceramics is generally Stoneware ceramics class, with low water absorption, hard, wear resistant, chemically stable, it is natural sand and gravel sand material as raw material physical properties are not specific. will be broken as artificial sand waste ceramic raw materials, good resistance to glaze firing high temperature, easy to fall off and so can be widely used in building facade decoration. in addressing the nursing body of waste pollution, but also create a higher economic efficiency.

In short, the construction of solid waste pollution prevention and control of resources can be seen as an industry, has great economic potential can be tapped, in the prevention and reduction of solid waste pollution, based on the realization of the recycling of resources, can effectively protect the environment.

References:
[1] Yuan Fang, Kai-ming. Construction of solid waste resources, the value of empirical Research. Construction Economics 1 .2008,
[2] Shi Feng, Ning Li, the Liu Xiaofeng and so on. Construction of solid waste comprehensive utilization of resources. Water Resources and Water Engineering. October 2007.


1 Yuan Fang, Kai-ming. Construction of solid waste in the value of empirical Research resources. Construction Economics .2008 1.

1 Shi Feng, Ning Li, the Liu Xiaofeng and so on. Construction of solid waste comprehensive utilization of resources. Water Resources and Water Engineering. October 2007 Links to Research Papers Download http://www.hi138.com