Study on Using Public-private Partnerships to Develop Management and Recycling of Demolition Waste Gang Chao 1, Deng-yue Li1, Mei-hua Qiu1 1 School of Business Administration, South China University of Technology, Guangzhou, China gzhao@scut.edu.cn,lidengyue@gmail.com, 304765890@qq.com Abstract - This paper analyzes a policy management tool applied in construction and demolition ( C&D ) waste recycling. With the rapid development of urbanization and the construction industry, the C&D waste recycling becomes a chronic problem in the urban management. After introducing the basic features and advantages of the PPP (Public-private partnerships), the paper investigate the disposal and reclamation of C&D waste in Guangzhou City and analyzes the feasibility of PPP applied in C&D waste recycling from the aspect of policy, economy and technology. Moreover, the study establishes the way of operation and types of PPP. Hopefully, the paper can do well for the reclamation of C&D waste. Keywords - C&D Waste, PPP model, the reclamation of C&D Waste I. INTRODUCTION In recent years, with the rapid development of the construction industry, it will inevitably lead to the rapid growth of construction and demolition (C&D) waste. The data of the Ministry of Housing and Urban-Rural Development shows that Construction area in 2007, 2008 and 2009 is 4.116 billion square meters, 47.32 million square meters and 5.873 billion square meters [1]. The empirical data of abroad shows that about 20 to 40 kg of C&D waste will be generated every square meter of housing area in the process of building housing[2].Given the low level of construction management, more C&D waste will be generated in China than in developed country. About 500 to 600 kg of C&D waste will be generated every square meter of housing area in the process of construction [3]. Assuming that the annual housing areas are all newly built, the total amount of C&D waste generated throughout the country would be close to 810 million tons in the past three years. Assuming the annual area of demolished buildings accounts for 10 percent of the total area of construction, the total amount of C&D waste in the country would turn to 1400 million tons in the past three years. The fast growth of C&D waste has caused much management pressure to the government departments in cities. To government departments, the state and local government have already attached great importance to the C&D waste issue because of its urgency and seriousness. But if just rely on the government; it cannot meet the need of city development, neither in the money supply nor operation efficiency. It is an inevitable requirement to build C&D waste recycling marketing operation in a commercialized manner. The private-owned enterprises in construction disposal industry are providing social services and achieving social benefit as well as winning market and economic benefits. II. REGULATION MEASURES OF C&D WASTE AND EXISTING PROBLEMS IN GUANGZHOU A The Status and Goals of Guangzhou C&D Waste Recycling With the rapid and sustained development of National economy, the ever-increasing amount of solid waste generation has created disposal problems for many cities. According to the Guangzhou sanitation department estimate, Guangzhou produces 20 million tons C&D waste every year, and there are also about 40 million tons C&D waste that have been stored up for 20 years, so the total number of the C&D waste in Guangzhou would be 60 million tons. <The Cantonese long-term plan for Comprehensive utilization of resources >explicitly pointed out that we should vigorously carry out the comprehensive utilization of C&D waste sorting technology, equipment development and application, expanding method of classification, reclamation, safe treatment , so as to improve the rate of waste recycling .on the regional distribution, The plan pointed out that the amount of Utilization of C&D waste will be increased from 0 tons in 2009 to 500 million tons in 2015, 10 million tons in 2020,in the direction and emphasis of the comprehensive utilization of building materials resources[4]. B The major problems existing in the C&D waste recycling in Guangzhou Over the years, the way that Guangzhou city treats the C&D waste basically follows the principle that "the one who produces C&D waste is liable for disposal”. By using the system of disposal permission and charging ,In recent years, the minimization and recycling of C&D waste, issues have received increasing attention, but because of too many historical debts ,unsound capital investment system and the unsupported management and supervision system, there are still a large number of problems in the C&D waste disposal, and recycling problem is more outstanding. Mainly in: Firstly, with the rapid growth of construction waste, Great pressure of waste disposal and outdated technologies compared the refuse processing sites and methods have not got relevant development. Currently there are only two standard refuse processing plants in Guangzhou city, one is in Huadu district with 6 million cubic meters designed capacity; the other is in Luogang district with 0.3 million cubic meters designed capacity[5]. Secondly, single financing channel and short of fund. The development of modern economy and urbanization demands urban infrastructure to go ahead of the rest, the growth rate for investment is higher than that of national income growth and cannot meet the demand for urban infrastructure construction if totally relied on government current income. Recycling utilization of construction waste is a capital-intensive industry. According to ZhuYing (2003) 's study on C&D waste concrete recycling project, it will takes billions of RMB to build up a recycled concrete plant with production capacity of 400,000 tons[6]. To accomplish the above goal, it needs to construct a variety of waste disposal facilities for about 5 million annual disposal capacities from 2010 to 2015, which amounts for 1.3 billion RMB. C&D waste recycling has always been taken as public welfare undertaking, almost rely on government investment. However, based on statistics, although the problem of construction waste becomes more prominent, government’s responding investment tends to decrease. (Table I).The gap between investments and demand continues to expand, result in the restriction the effective implementation of government regulation functions, which is also a very important reason for the deferred advancement in the recycling utilization project of waste. TABLE I: AMOUNT OF THE GOVERNMENT INVESTMENT IN C&D WASTE DISPOSAL IN GUANGZHOU Year 2005 2006 2007 2008 2009 fixed assets investment in Construction of public facilities (million) 2325685 2225403 2117075 1956711 4170016 C&D waste investment (million) The proportion (million) 40932 34889 14070 20114 19690 1.76% 1.57% 0.66% 1.03% 0.47% Thirdly, charging method is difficult to encourage recycling Urban Solid Waste Management was adopted in 1995, which requested the garbage producing departments pay for the disposal fee, aiming to reduce garbage generation from the stem. This cannot stop garbage producing from the stem, as for most of trash producing enterprise; it does not have much impact on them to pay the disposal fee. In comparison with reclamation of construction waste, it costs less in short term and the law does not cover the question of waste recycling utilization. The level of charging standard is low in our country, on the one hand, it is difficult to urge enterprise to reduce emission of waste actively by charging them; on the other hand, fund subsidized to enterprise for waste recycling is limited. Fourthly, both the current rate of multipurpose utilization and the recycling rate in Guangzhou are low. Due to fewer companies are specialized in trash reclamation treatment in Guangzhou, the leveler of scientification and the standardization is quite low, making it difficult to form scale economy and handle larger volumes of C&D waste. Most of recycling methods of C&D waste are single with simple treatment and low rate of resource use. The proportion of disposal of C&D waste is only about 40%.It is mostly used in three connections and one leveling projects and newly built buildings. To sum up, the recycling of C&D waste is still at the initial stage, and a large number of C&D waste is not included in the unified management system. As the consumptive field capacity of C&D waste is also getting smaller and smaller. Many depressions have been filled or planned land has been developed, this kind of means is hard to be carried on. III THE CHARACTERISTICS OF PPP AND THE WAY TO SOLVER THE PROBLEM OF RECYCLING C&D WASTE A The meaning and characteristics of PPP model Public-private partnership denotes a sophisticated interface between public authorities and private sector undertakings which aims at delivering infrastructure projects, as well as public services. According to the EU institutions, the term public-private partnership refers to “forms of cooperation between public authorities and the world of business which aims to ensure the funding, construction, renovation, management or maintenance of an infrastructure or the provision of a service” [7]. The United Nations followed and embraced the concept, denying public private partnerships as ‘innovative methods used by the public sector to contract with the private sector, who brings their capital and their ability to deliver projects on time and to budget, while the public sector retains the responsibility to provide these services to the public in a way that benefits the public and delivers economic development and an improvement in the quality of life’ [8]. As a policy management tool, PPP has been widely used in the areas that processing the characteristics of public goods, and of private goods. There are many public services programs supply in the form of PPP, which is funded by the government and produced by private sector. For example, in the USA, there are 339 PPP programs of garbage collection, 143 PPP programs of garbage disposal and 67 PPP programs of water treatment [9] . Chinese Urban infrastructure projects are beginning to use the PPP mode. The first program which successfully used PPP was the main venue of the 29th Olympic Games, which is also called "Bird's Nest" project. In 3.5 billion Yuan of total investment of the project, the government funded 58% , by investing only 2.03 billion Yuan on the construction of the project, so greatly reduced the financial burden, on the other hand. Commonwealth of CITIC Group funded 42%, and got a 30- year franchise through investment of 1.47 billion Yuan [10]. With the rapid development of Chinese economy in recent years, more and more private capital began to focus on urban infrastructure construction investment. The PPP model is undoubtedly the ideal model of choice of private capital participation in urban infrastructure construction and private capital to participate in urban infrastructure construction. B The Theoretical Feasibility of Using the PPP Model to Solve the Problem of Recycling C&D Waste As for welfare, C&D waste management is considered as public goods with strong external nature to be served by government, this cognition is based on shallow analysis on the attribute of public goods. Christine Kessides(1993) Summarized the characteristics of solid waste treatment industry (See table II), after analyzing factors as follows: the competitive level, exclusive degree, sunk degree of production, economies scale, cooperation requirements and externality [11]. It is observed that waste disposal industry is not exclusive on consumption, and there is certain competiveness with supply, waste transportation and resource recycling, which are not consistent with the nature of public goods and the properties of pure public goods [12]. TABLE II CHARACTERISTICS OF THE SOLID WASTE DISPOSAL manner Gathering Transpor-ttion landfill treatment incinerati on resource recovery Essential character of service Compe Exclusi titive ve extent extent On The Producer Side Median high median high low high Extent of Cooperati on requireme nt Median high low Median high high median high High high high high low low Econom ic scale Externa lity public health, Land pollutio n, water pollutio n C Policy Basis for the Application of PPP Model In The Resolution Of C&D Waste Recycling Problem In June, 2002, The State Planning Commission, Ministry of Finance, Ministry of Construction, State Environmental Protection Administration jointly issued a notice <on the implementation of municipal solid waste disposal fees to promote the waste disposal industry>, fully implemented C&D waste disposal fees .It is also puts forward that waste disposal company should introduce competition mechanisms by carrying out the separating government administration from enterprise management[13]. Through public bidding, qualified enterprises are chosen to response for garbage disposal and demand city construction administrative supervision department to establish market admission system, In February 2005, the state council has announced <certain opinions on encouraging, supporting and instructing the individual private and other non-public sectors >.For the first time the government explicitly allowed private capital to enter the monopoly areas of electricity, telecommunications, railway, civil aviation, etc. As well as supporting private capital to actively participate in the investment, construction and operation of municipal utilities and infrastructure, encouraging non-public enterprises to participate in property relations and business model's reform of municipal utility enterprises and institutions. The issue of “new 36” breaks the monopoly of the industry, extend to inside open, it also encourages and guides private investment to participate in public welfare undertakings and infrastructure projects. Besides, it solves the dynamic problem of civilian capital admittance. Promulgation of the "new 36" has great strategic and economic significance [14]. D Analysis of the Technical Feasibility of C&D Waste Recycling C&D waste recycling technology includes recycled aggregate technology; regeneration block technology recycled concrete technology. Among them, building block technology is the most mature which has reached the commercial level and used in the big light commercial center of Handan City, the National Business Center and other projects [10]; Although regeneration aggregate and recycled concrete technology has not reached to commercial degree, yet it has already entered the promotion stage for typical project demonstration, belonging to relatively mature technology. Technological maturity of main garbage regenerated technologies is showed in table III. TABLE III: DEVELOPMENT STATUS OF SOLID RENEWABLE TECHNOLOGY skill type Solid waste utilization Recycled Aggregate Technological maturity and development stage Commercialize Research and Pilot stage development stage demonstrati on stage Regeneratio n block recycled Concrete muck coal gangue Scrap metal recycling IV PPP OPERATION MODE OF C&D WASTE RECYCLING PROJECT A. Organization Structure of the PPP Model Combined with the nature of the C&D waste disposal industry, the organization settings of the PPP mode is shown in Fig. 1. Consulting company Project committee bid Insurance contract Consulting contract Concession Agreement Agreement Option PPP Project Company Agreement E Analysis of economic feasibility of C&D waste recycling There are several raw materials needed in daily production of C&D waste recycling: C&D waste, Cement, coal ash and so on. The condition for raw material supplying market is like below [15]: 1)Construction waste can be coordinated by the Guangzhou municipal government , all (a certain percentage) of C&D waste after classification will transported to the construction of waste disposal station by the joint venture company's fleet. 2) Cement. Mainly used in the production of light weight block, well-supplied by the markets, so can be bought on the market. We should develop appropriate standards and determine the supply unit and is in abundant supply. It should be purchased from the market by setting up certain standards to ensure stable supplying firms. In addition, as the country’s great effort in the prohibition of the use of clay brick, Modern architectural wall materials providing great opportunity of development and the broad market space for new building materials such as baking-free brick. According to the Guangzhou planning, the proportion of recycled products procurement by Guangzhou municipal government should be increased year by year. The rate of recycled products procurement by government agencies should rise up to 30% by the year 2015. Apparently, recycling products of C&D waste is competitive in policy and product performance, with capacious market prospect. bidGovernment Insurance company Loan Agreement Private Connotative Investor s contract Deign Design contract units Construction units Supply Contract Financial financial institutions institutions Purchase Contract Management contract Suppliers Suppliers Operators Users Fig.1. the Organization Settings of the PPP Mode B. Operating Program of the C&D Waste Disposal Station There are three major income sources in the operation stage of waste disposal station, they are as follow: Firstly, it will charge the construction companies for waste management.<Guangzhou solid waste pollution prevention plan (2005-2015)> clearly pointed out that, it is a general principle for either polluters or users to pay the management fee in pollution as well as in solid waste pollution prevention and treatment..It is the foundation for marketization for either polluters or users to pay the management fee. Government, waste management company, all related experts need to participate in the consultation of the waste management costs ,the joint venture company can reported program first, providing reasons to grasp the initiative in pricing, at last the price is reviewed by the pricing team formed by governments and experts. Secondly, charge government the service fee or subsidy by contract. The costs and administrative transfer have substantial distinction. It is confirmed by measured garbage discharge quantity, the cost of collection, transportation and treatment of per ton garbage, the environmental protection. V CONCLUSION In summary, industrial development of C&D waste recycling is the inevitable future of urban development, application of PPP mode to solve the Guangzhou construction waste resources. It is a practical program of solving the problems of inadequate investment, backward technology and low recycling rate. The government should further promote the construction waste recycling industry and public-private partnership process so as to enhance the level of construction waste resources. REFERENCES [1]Xuexin Liu (2009) "The Risk of Infrastructure industries’ market-oriented reforms”. 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