城市固体废弃物粉煤灰污泥为资源综合利用生产陶粒研究(2)

菜单

to effectively deal with urban solid waste, is now very concerned about the issue. Solid waste disposal If the waste of resources can be tangible in the governance environment at the same time can bring economic benefits, but also the direction of people's research, but also China's advocacy of sustainable development, circular economy strategic requirements, we must Adhere to pollution control and development simultaneously, innovation and re-use of technology, change the previous "first pollution, re-governance" backward development concept, adhere to the sustainable development of the road, so that China's economic stability and economic development and urban ecological environment improvement Is of great importance.

Fly ash and sludge are difficult to deal with solid waste, slightly improper will cause secondary pollution to the environment, pollution of land water quality and thus a threat to human health. How to solve the increasingly serious environmental problems, as well as the use of solid waste is our current research direction. Through the study of physical and chemical properties of sludge and fly ash and the summary of their resource utilization, the final determination of mixed with fly ash and sludge burning ceramic, the prepared ceramic can be used as water treatment filter , Can deal with domestic sewage, maintenance of ecological water has great potential. According to the Baotou City, for example, according to the accumulation of fly ash in the Baotou and the production of sludge, the initial design of the ceramic plant, Nissan ceramic 260 tons, the production of products can be used to purify the sewage, the solid waste For the benefit of the economy and for the benefit of society.

The process of urbanization is an irreversible trend, how to make the city better, is the key. As the urban population increases the amount of domestic sewage treatment gradually increased, the corresponding sludge treatment and utilization is always one of the problems plagued by urban development. In addition, the development of urbanization is bound to bring about the demand for energy, firepower to dominate the use of its fly ash is also a problem.

Thermal power in Baotou development has been 70 years, is Baotou pillar industry, thermal power plant operation will produce a lot of fly ash, according to statistics as early as 2011 Baotou City, ash storage has reached 45 million tons , While the rapid development of population in Baotou City, the increase in urban sewage treatment capacity is also increasing, the need to deal with a large number of sewage treatment plant sludge, if the sludge and fly ash these solid waste will ignore the environment will cause Secondary pollution on the health of the human body poses a threat to the future will hinder the development of the city, from another aspect of fly ash and sludge is also rich in resources, this paper is based on the above phenomenon, combined with their own professional education through the literature and science and The paper puts forward the process route of making the ceramsite with the fly ash and the sludge as the raw material and the demand of the comprehensive utilization of the resources in Baotou City. The product is not only used for urban sewage treatment filter, more will face herdsmen and grassland ecological restoration, due to herdsmen living water discharge will make grassland water quality eutrophication, the ceramic filter laying in the bottom of the river Effective management of water quality eutrophication.

Keywords: Fly ash；sludge；ceramsite；water treatment

第 1 章绪论 10

第 2 章粉煤灰的现状 11

2.1 粉煤灰主要来源 11

2.2 粉煤灰综合利用的发展现状 13

2.2.1 建筑材料领域