Although China's construction waste treatment industrialization has made some development, but there is still a lot of room for improvement. Only by continuously increasing government support and attracting more enterprises to participate in the process of construction waste industrialization can we realize construction waste treatment industrialization faster.

Source: Protection Engineering

Introduction

There is still a long way to go for the industrialisation of construction waste treatment in China, which requires not only the participation of strong enterprises in the industrialisation of construction waste, but also the policy support of the government. Only with the government's dedicated support and guidance can the construction waste disposal industry embark on a benign development track and provide a guarantee for sustainable economic development.

The concept of construction waste disposal industry

The construction waste disposal industry is based on construction waste disposal enterprises, with the original intention of saving resources and protecting the environment. Throughout the process, construction waste disposal enterprises use advanced technical facilities and treatment processes to transform construction waste into reusable resources and products, which are then re-sold to achieve economic benefits, and make this specialised treatment method popular across the country to form an industry. The construction waste disposal industry is usually a municipal utility and cannot be treated according to the general free competition of the market, but should be implemented under certain specific rules, such as the franchise model. The content of construction waste disposal services includes the collection, transfer, transportation, sorting and recycling, disposal and treatment of construction waste, as well as some other supporting services.

Background and development status of industrialisation of construction waste in China

2.1 Background of industrialisation of construction waste in China

China's construction waste treatment started late, the treatment technology is relatively backWard, and there are large regional differences in treatment capacity. With the accelerated pace of urban construction in China, the total amount of construction waste is accumulating. The proportion of construction waste in urban waste is becoming larger and larger. The crude construction waste disposal method not only causes a large amount of natural resources waste, occupies a large amount of land resources. It can also cause serious damage to the ecological environment. Although the government attaches considerable importance to the construction industry, in the disposal of construction waste, but there is a 'lack of investment funds, efficiency and management still needs to be improved; and construction waste recycling welfare and public welfare than profitability, private capital is often reluctant to enter. Affected by these problems, China's construction waste recycling struggles. Drawing on the practical experience of construction waste treatment in countries around the world, to break the current dilemma, construction waste treatment should take the road of industrial development.

2.2 The development status of China's construction waste industrialization

In the current period, the industrialisation of construction waste treatment in China is still in its initial stage. In the 1990s, the problem of construction waste treatment began to attract the attention of the state. And in the Law on Municipal Solid Waste Disposal adopted in 1995, the Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste promulgated in 2004 and the Provisions on the Management of Urban Construction Waste promulgated in 2005, relevant provisions were made for the disposal of construction waste, from which it can be seen that the state's attention to the disposal of construction waste is being strengthened.

At present, construction waste disposal enterprises have emerged in some of China's cities, and the experience of construction waste disposal has been continuously improved in practice. It cannot be denied that the development situation of construction waste disposal enterprises in most of China's cities is still not optimistic, and the reasons for this phenomenon can be divided into the following categories: ① administrative permits for construction waste disposal enterprises can only be attached to enterprises under the sanitation department, which do not have the The lack of government support has led to operational difficulties and hindered the expansion of the enterprise scale; ③ the phenomenon of filling pits with construction waste to create land is common, making construction waste disposal enterprises lack raw materials.

Strategies to promote the industrialisation of construction waste treatment in China

3.1 Increase government support

According to the successful experience of construction waste disposal abroad, it is known that only by combining the compulsory power of national laws with the market can the problem of construction waste be effectively solved. Therefore, if we want to practice the industrialisation of construction waste disposal in China, the government must give certain support to facilitate the sources of waste, market exports and post-intermediate land use in order to truly form a complete industrial chain.

In addition, without the financial support of the government, the economic benefits of construction waste resourceisation are simply negligible. To address this point, the government can provide support in the following areas. Firstly, the government should provide certain financial support to construction waste disposal enterprises. The low economic benefits of construction waste recycling have led to little private capital investment in this project, so the state should give the enterprises loan support; secondly, the low profitability of construction waste disposal has led to the fact that construction waste disposal enterprises are generally not allowed to be built in urban centres, which requires the enterprises to pay more for transportation costs, and the high price of construction waste disposal equipment makes the enterprises The high price of construction waste disposal equipment makes it unaffordable. Finally, the government should set up role model enterprises or strengthen the research and development of construction waste treatment technology, so as to provide some assistance for the resourceisation and industrialisation of construction waste.

3.2 Improve laws, regulations and penalties

Construction waste has been neglected because of its large volume, low added value and costly recycling and processing. However, the environmental problems caused by the increasing proliferation of construction waste have forced people to explore new paths for waste disposal. As soon as possible to improve the corresponding laws and regulations and increase the support for construction waste disposal, the establishment of a standardised scientific construction waste detection and reduction system, so as to reduce the production of construction waste at source. In addition, we must also increase the punishment, the unit that exceeds the construction waste measurement system should be severely punished, for the unit that does not meet the construction waste emission standards to give a stop and rectification until qualified, to effectively achieve the law, there must be compliance with the law, illegal will be investigated. Finally, the units that comply with the construction waste measurement system should also be rewarded, and spiritual praise and material rewards should be adopted in parallel to improve the enthusiasm of construction units.

3.3 PPP financing model to solve the funding problem

The application of the current PPP mode in the construction waste resourceization industry is still in the fumbling stage. It still needs to be improved slowly in practice, but it is undeniable that the use of PPP mode can effectively solve the problem of shortage of funds faced by the construction waste resourceization, in the case of insufficient government funds and inadequate management. It is a useful and operational way. It can also bring into play the technical and management strength of private capital, reduce investment risks and improve the efficiency of public resource allocation． For the introduction of foreign capital, technology, advanced management experience are extremely helpful． The government's financing pressure and management risks are also relieved． However, if the PPP model is to be used to achieve a win-win situation for both private enterprises and the government． Some support from the government is needed.

3.4 Improve the level of construction waste treatment technology

At the present stage, although China has a certain level of construction waste resource treatment, but there is still a certain distance from the developed countries. The research and development of complete sets of equipment has not yet achieved satisfactory results. Construction waste is often generated during the construction of new buildings, so it is essential that the waste treatment equipment is mobile if large-scale treatment of construction waste is to be achieved. This is something that cannot be achieved at the current level in China. The research and development of construction waste treatment equipment should be continuously increased, incentives should be provided to encourage research on related topics, and valuable research results should be promoted to facilitate the transformation of theory into practice.

3.5 Eliminate prejudice against recycled products

Strengthen the government's publicity work, through newspapers, television, the Internet and other public opinion platforms to increase the publicity of recycled construction products, green building materials and other construction waste disposal industry products, improve the public's awareness of resources, environmental protection, eliminate people's misunderstanding and prejudice about recycled products, improve the public's awareness of environmental protection. Key government projects can take the lead in using environmentally friendly materials and take the lead. Demand determines the development of the industry. Only by increasing the demand for recycled materials and ensuring the smooth promotion of the market can construction waste resourceisation develop well and the process of industrialisation can be promoted.

3.6 Raising people's awareness of construction waste reproduction

Generally speaking, people's misconceptions about construction waste recycling products have led to their resistance to such products. To address this problem, the government should strengthen its publicity work and popularise the knowledge of construction waste disposal through various publicity platforms, so that people have a clear understanding of construction waste recycling products, and at the same time raise people's awareness of environmental protection and promote the use of environmentally friendly materials. In this way, the increase in demand for recycled materials can promote the development of the market, thus playing a role in promoting the industrial process of construction waste disposal.

Conclusion

With the introduction of the concept of green and sustainable development and the increasing awareness of environmental protection, the traditional "resource-product-waste" model in China has failed to meet the requirements of the times and is not conducive to the development of our economy. Therefore, China must realize the industrialization of construction waste resource treatment as soon as possible.