|关键词: 垃圾处理 特色小镇 西咸新区
|Practices and Exploration on the Characteristic Town of Garbage Disposal—A Case of Garbage Disposal Town in Xixian New Area of Shaanxi Province
WEI Bo,ZHANG Junfei,WANG Haitao
|Garbage disposal has become a worldwide problem that plagues the sustainable
development of cities. It is urgent to solve this problem by systematic planning. Based on the
new concept of ecological civilization and green recycling, waste treatment needs to explore new
models, new paths, new technologies and new functions. And the waste should be treated by
the way of harmlessness, reduction and resource utilization. Some methods should be taken to
resolve the “negative neighborhood effect” effectively and guide the formation of the “positive
neighborhood effect”. For example, guiding the public through the popular science show and
developing eco-tourism to understand the waste disposal process, facilities and impact on the
The evolution process of garbage disposal facilities has generally experienced three stages.
The first stage is the single processing mode, which is mainly the way of landfill. The second
stage is the mode of integrating industrial park, such as intravenous industrial park, circular
economy industrial park, environmental protection industrial park, etc. The third stage is the
mode of garbage disposal characteristic town. Until now, only one garbage disposal characteristic
town which is located in Hangzhou called Tianziling vein town has been operated. And it
initially explored the mode of combining garbage treatment with characteristic towns. The main
methods of garbage disposal are sanitary landfill, high temperature composting and incineration.
From the perspective of processing technology, foreign countries mainly use landfill,
incineration, composting, comprehensive utilization, etc. These technologies and equipment have
a high degree of mechanization. From the situation of various foreign treatment methods, there
are the following trends: 1) Due to the tight energy and land resources in industrialized countries,
the proportion of incineration treatment is gradually increasing. 2) Landfill method has always
occupied a large proportion as the final disposal method of garbage. 3) Most of the developing
countries especially agricultural countries are mainly composting. 4) Other new technologies,
such as pyrolysis, reclamation, and mountain landscaping, are making continuous progress.
China’s urban waste treatment started relatively late. According to the actual situation,
some cities have made a useful exploration of urban waste treatment technology in recent years.
And these cities have designed their own garbage mechanized composting production lines
with Chinese characteristics based on learning the experience of foreign urban waste treatment
technology. The success of building waste incineration plants in some cities also provided experiences for the application of incineration technology. The implementation of unified management and concentrated incineration of hospital
waste embarked on a new road of special waste disposal as well.
In accordance with the requirements of the “Green Low Carbon Cycle”, domestic and foreign waste treatment technologies and the current
status of waste treatment in Xixian New Area, the combination of garbage disposal and construction of national characteristic towns is proposed.
The concept of sustainable innovation in the characteristic towns is characterized by the combination of different types of garbage processing
upstream and downstream modes. It builds an integrated garbage disposal characteristic town mode of taking the construction of garbage disposal
as the core industry with integrating ecological culture, industrial tourism, popular science show and other functions. A comprehensive system-wide
recycling solution for waste disposal has also been proposed with the goal of “reduction, reuse, and recycling”.
The layout of the garbage disposal characteristic town takes the characteristic town as the core, which is surrounded by sanitation facilities. The
aim is to solve the three problems as below. The first one is to reduce the difficulty of the construction of sanitation facilities. Second, it may solve
the problem that the garbage can only be processed by a single process. Third, it may achieve the goal of sustainable development by combining
waste compost with agricultural development.
The garbage disposal characteristic town includes three core layers which are core area, control area and buffer zone. The core area also called
waste comprehensive treatment area which covers an area of about 30 hectares. It mainly includes sorting, incineration, biochemical treatment,
landfill and other facilities. Control area also called resource recycling area which occupies an area of about 50~70 hectares. It mainly includes
facilities such as recycling, dismantling, recycling, and construction waste. The buffer zone also called science and education promotion business
district covers an area of about 150 hectares. It mainly includes the functions of specialized experimental research, public environmental education,
environmental theme tour guiding, and the experience of recycling technology and recycling products.
The exploration of the treatment mode combining garbage disposal with characteristic towns is of great significance to the implementation of
the national “no-waste city” construction. And it is also important to strengthen ecological environment protection. At the same time, the exploration
has a large reference value for solving the problems of “garbage besieged city”, practicing the new development concept and building a green and
low-carbon sustainable urban-rural area as well.
|Key words: Garbage Disposal Characteristic Town Xixian New Area