Spatial autocorrelation, influencing factors and temporal distribution of the construction and demolition waste disposal industry

2021 ◽  
Vol 127 ◽  
pp. 158-167
Author(s):  
Haizi Wang ◽  
Xinming Pan ◽  
Shibin Zhang
Keyword(s):  
Spatial Autocorrelation ◽  
Influencing Factors ◽  
Waste Disposal ◽  
Temporal Distribution ◽  
Construction And Demolition Waste ◽  
Demolition Waste

Development of a leaching procedure to assess the risk of uranium leaching due to construction and demolition waste disposal

2018 ◽  
Vol 78 ◽  
pp. 144-150 ◽  
Author(s):  
Mary Margaret Letman ◽  
John Drage ◽  
Anne-Marie Ryan ◽  
Craig Lake ◽  
Rob Jamieson
Keyword(s):  
Waste Disposal ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Uranium Leaching ◽  
Leaching Procedure

scholarly journals Exploring Spatial Heterogeneity and Factors Influencing Construction and Demolition Waste in China

2021 ◽  
Author(s):  
Zhenshuang Wang ◽  
Zhongsheng Zhang ◽  
Jiangkuang Liu
Keyword(s):  
Spatial Heterogeneity ◽  
Spatial Autocorrelation ◽  
Treatment Strategies ◽  
Construction And Demolition Waste ◽  
Growth Trend ◽  
Demolition Waste ◽  
Positive Role ◽  
Factors Influencing ◽  
Per Capita ◽  
Temporal And Spatial

Abstract Natural disasters, new urbanization and urban renewal activities generated a large amount of construction and demolition waste (C&DW), and managing C&DW has become an urgent problem to be solved in the construction of “Zero-waste cities”. Based on the calculation of C&DW generation in China from 2005 to 2019, this study analyzed the temporal and spatial characteristics of C&DW generation in China, and empirically explored the factors influencing factors C&DW of China using spatial autocorrelation and geographically weighted regression. The results showed that: (1) C&DW generation in China increased every year, and the overall distribution was characterized as “high in the east and low in the west”, with distinct regional differences. The provinces with the highest per capita C&DW generation were Zhejiang, Jiangsu, Beijing, Shanghai, and Fujian. The generation intensity of C&DW in China and all its provinces showed a decreasing trend every year. The regions with rapid growth of C&DW generation in China were concentrated in the eastern coastal areas, with distinct differences between the east and west, and there was significant spatial heterogeneity in the growth trend. (2) There is a significant spatial autocorrelation in C&DW generation in China. Overall, the hot spots for C&DW generation were distributed in Jiangsu, Zhejiang, and Shandong provinces, and the spatial agglomeration effect of C&DW generation in provinces was evident. (3) Factors such as population size, per capita Gross Domestic Product and the scale of the construction industry played a positive role in promoting C&DW generation in each province, whereas labor efficiency played a negative role inhibiting C&DW generation; there was significant temporal and spatial heterogeneity. Finally, differentiation and cross-regional joint treatment strategies according to regional conditions were proposed to achieve precise measures of C&DW reduction management.

scholarly journals Construction Waste Audit in the Framework of Sustainable Waste Management in Construction Projects - Case Study

2020 ◽  
Author(s):  
Marcela Spišáková ◽  
Peter Mésároš ◽  
Tomáš Mandičák
Keyword(s):  
Waste Management ◽  
Waste Disposal ◽  
Construction Projects ◽  
Economic Benefits ◽  
Construction And Demolition Waste ◽  
Transport Costs ◽  
Demolition Waste ◽  
Construction Waste ◽  
Building Information

The issue of sustainability has long been the subject of interest of the architecture engineering and construction sector. All three aspects of sustainability - economic, environmental and social - can be affected through appropriate construction waste management. Construction and demolition waste (CDW) is one of the largest worldwide waste streams, therefore it is given great attention by all stakeholders (investors, contractors, authorities, etc.). Researches have shown that one of the main barriers to insufficiency CDW recovery is inadequate policies and legal frameworks to manage CDW. It is also one of the EU's environmental priorities. Aim of the article is to confirm the economic potential of construction and demolition waste audit processing through case study. A pre-demolition waste audit has been processed for unused building of shopping center in the town Snina in Slovakia. Subsequently, a comparison of economic parameters (waste disposal costs and transport costs) of recommended CDW management was performed. This comparison confirmed the economic benefits of environmentally friendly construction waste management methods according to the waste audit results, which will also increase the sustainability of construction projects. In addition, the cost parameters of selected waste disposal methods could be another dimension of building information modelling.

scholarly journals Landfill Levy Imposition on Construction and Demolition Waste: Australian Stakeholders’ Perceptions

2020 ◽  
Vol 12 (11) ◽  
pp. 4496 ◽  
Author(s):  
Salman Shooshtarian ◽  
Tayyab Maqsood ◽  
Malik Khalfan ◽  
Rebecca J. Yang ◽  
Peter Wong
Keyword(s):  
Waste Management ◽  
Waste Disposal ◽  
State Government ◽  
Resource Recovery ◽  
Construction And Demolition Waste ◽  
Research Centre ◽  
Demolition Waste ◽  
Waste Hierarchy ◽  
Capital Cities ◽  
Key Stakeholders

With increased construction activities in capital cities of Australia, the sustainable management of construction and demolition (C&D) has become an important item in the federal and state government agendas. According to the universally accepted concept of waste hierarchy waste disposal is the worst preferred waste management option due to environmental issues. Currently, in most Australian jurisdictions, a landfill levy is applied to discourage waste disposal and to further encourage waste recovery. However, there is an ongoing debate as to whether the levy regime could achieve the desired outcome. Therefore, this study, funded by the Australian Sustainable Built Environment National Research Centre, explored the effectiveness of the current landfill levy across Australian jurisdictions. The paper presents the findings of this study that were obtained from a questionnaire survey aiming to capture the main C&D waste management stakeholders on landfill taxing imposition in Australia. The study collected 132 responses from professionals in the construction industry and other industries dealing with C&D waste management and resource recovery. The results demonstrated that those who believed in market incentive approaches outweigh people that were in favour of pecuniary impost approach. Among those who favoured pecuniary imposts, almost 90% of participants agreed with the effectiveness of landfill levies in any waste management system. Other results provided a useful insight into the actual implications of the current levy scheme. It is expected that the findings in this study contribute to developing sound policies that provide a level field for all key stakeholders and to ensure that resource recovery is further encouraged.

scholarly journals An Informatization Scheme for Construction and Demolition Waste Supervision and Management in China

2020 ◽  
Vol 12 (4) ◽  
pp. 1672
Author(s):  
Zhijia You ◽  
Chen Wu ◽  
Lianqiong Zheng ◽  
Lingjun Feng
Keyword(s):  
Decision Making ◽  
Waste Disposal ◽  
Construction And Demolition Waste ◽  
Collaborative Management ◽  
Accurate Data ◽  
Demolition Waste ◽  
Supervision System ◽  
Construction Waste ◽  
Supervision And Management

China is in a development period of urbanization construction, while its environment is threatened by an increasing amount of construction and demolition (C&D) waste. Due to the excessive pursuit of profits and a general lack of environmental awareness of stakeholders, illegal behaviors such as illegal dumping universally exist in the waste disposal process. Meanwhile, supervision departments face many challenges in collaborative management and decision-making, which lead to inefficiencies in C&D waste supervision and management in China. To address the above challenges, we propose an informatization scheme integrating multiple technologies, which will contribute to real-time monitoring of illegal behaviors in the waste disposal process, accurate data collection for evaluating the performance of stakeholders, and the enhancement of the collaboration between supervisory departments. A case study of the Ningbo Construction Waste Transportation Supervision System is introduced to verify the feasibility and effectiveness of the proposed scheme; results show that the total number of illegal cases has decreased from 510 to 89 per year since the system was put into operation.

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