scholarly journals Strategies for Effective Waste Reduction and Management of Building Construction Projects in Highly Urbanized Cities—A Case Study of Hong Kong

Buildings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 214
Author(s):  
Ann T. W. Yu ◽  
Irene Wong ◽  
Zezhou Wu ◽  
Chi-Sun Poon
Keyword(s):  
Hong Kong ◽  
Waste Management ◽  
Construction Projects ◽  
Management Practices ◽  
Green Building ◽  
Waste Reduction ◽  
Government Support ◽  
Design Stage ◽  
Construction Waste ◽  
Waste Management Practices

Hong Kong is a densely populated city with high-rise developments, and as in other metropolitan cities, the amount of waste generated from construction projects in the city is increasing annually. The capacity of existing landfills is expected to be saturated by the 2020s. Construction waste management has been implemented for years but the performance is still not satisfactory. The aim of this research paper is to explore and formulate strategies and measures for effective construction waste management and reduction in highly urbanized cities such as Hong Kong. A desktop study on construction waste management practices was carried out for a preliminary understanding of the current situation in Hong Kong. Semistructured interviews and focus group meetings were further conducted to shed light on how to improve construction waste reduction and management in Hong Kong. The main contributions of this research study are the potential short-term, medium-term, and long-term strategies, which are related to the design stage, tender stage, construction stage, and government support. The five major strategies recommended are financial benefits to stakeholders, public policies in facilitating waste sorting, government supports for the green building industry, development of a mature recycling market, and education and research in construction waste minimization and management.

Waste management in Hong Kong abattoirs

1999 ◽  
Vol 40 (1) ◽  
pp. 379-387 ◽  
Author(s):  
A. Koenig ◽  
W. C. Yiu
Keyword(s):  
Wastewater Treatment ◽  
Hong Kong ◽  
Waste Management ◽  
Management Practices ◽  
Treatment Plant ◽  
Solid Wastes ◽  
Waste Reduction ◽  
Extensive Investigation ◽  
Quantitative Results ◽  
Waste Management Practices

This paper reports the results of an extensive investigation on the waste management in Hong Kong abattoirs with the following objectives: (i) to identify the existing waste management practices in relation to sources and quantity of wastes generated, methods of storage and handling of wastes, any in-house treatment, and final disposal of wastes, (ii) to identify the problems of existing waste management practices, and (iii) to evaluate the future development. To obtain up-to-date data and reliable information, site visits were conducted and the management of the abattoirs were interviewed in detail about the operation and waste management practices. For each abattoir and one associated by-product plant, detailed material balances were established for liquid and solid wastes. Complete quantitative results on waste loads, water consumption and material/waste flows are presented. Operational problems regarding wastewater treatment, as well as waste reduction and potential for reuse or recycle of solid wastes are discussed in the context of Hong Kong. Finally, information on the proposed new slaughterhouse (design capacity 5000 pigs and 400 cattle daily) is provided which will include a novel underground wastewater treatment plant.

scholarly journals Politics of smell: Constructing animal waste governmentality and good farming subjectivities in colonial Hong Kong

2020 ◽  
Vol 38 (6) ◽  
pp. 1055-1074 ◽  
Author(s):  
Kin Wing (Ray) Chan
Keyword(s):  
Hong Kong ◽  
Waste Management ◽  
Management Practices ◽  
Waste Treatment ◽  
Environmentally Friendly ◽  
Animal Waste ◽  
Livestock Waste ◽  
Treatment Knowledge ◽  
The Creation ◽  
Waste Management Practices

This paper examines the governmentality of colonial Hong Kong throughout the 1980s and 1990s, focusing on the implementation of the Livestock Waste Control Scheme (1987–1997), the production of normative waste treatment knowledge, the spatial control of farming practices and the resulting subjectivity in the construction of the ‘environmentally friendly farmer’ identity. These themes are examined by analysing archival materials and conducting in-depth interviews with two Pig Farmers Association representatives and 19 pig farmers. This paper argues that the colonial government of Hong Kong relied on environmental ordinances and zoning regulations, livestock waste demonstration projects and socially constructed perceptions of olfactory acceptability as major technologies of governance in the creation of ‘environmentally friendly’ pig farmers. Through being exposed to these technologies, pig farmers learned and internalised a particular concept of what constitutes appropriate animal waste management and treatment. This paper shows how the concept of being ‘environmentally friendly’ contributes to the creation and use of ‘good farming’ subjectivities when modernising pig farmers’ waste management practices.

DRIVING FACTORS FOR CONSTRUCTION WASTE MINIMIZATION: EMPIRICAL STUDIES IN HONG KONG AND SHENZHEN

2019 ◽  
Vol 14 (4) ◽  
pp. 155-167 ◽  
Author(s):  
Zezhou Wu ◽  
Ann T.W. Yu ◽  
Hao Wang ◽  
Yigang Wei ◽  
Xiaosen Huo
Keyword(s):  
Hong Kong ◽  
Waste Management ◽  
Local Governments ◽  
Green Building ◽  
Driving Factors ◽  
Waste Minimization ◽  
Economic Viability ◽  
Background Information ◽  
Affecting Factors ◽  
Construction Waste

Effective waste management is an important aspect of green building development. However, a number of studies find that construction waste minimization actions are not satisfactorily performed in practice. Thus, it is of significance to identify the driving factors that influence construction practitioners' waste minimization behavior. This paper aims to explore the driving factors by comparing the affecting factors and construction waste minimization behavior between Hong Kong and Shenzhen. Firstly, through a comprehensive literature review, potential affecting factors were categorized into five groups: background information variables, construction waste minimization intentions, economic viability, governmental supervision, and project constraints. Based on the identified factors, a questionnaire was initially designed and then refined through a focus group meeting with three experienced experts. A total of 166 questionnaires were collected and non-parametric tests (Mann-Whitney U Test and Kruskal-Wallis Test) were conducted to investigate the underlying driving factors. Results revealed that background information variables play insignificant roles in construction waste minimization. Compared with other affecting factors (i.e., waste minimization intentions, governmental supervision, project constraints), economic viability is the most important driving factor that determines construction waste minimization. Results suggested that local governments should make policies that increase practitioners' profit, rather than just increasing their intentions or regulating waste management behavior.

scholarly journals Project Development Evaluation Towards Construction Waste Management Green Building Concept Oriented

Neutron ◽  
2019 ◽  
Vol 18 (2) ◽  
pp. 18-27
Author(s):  
Muhammad Rudiansyah ◽  
F Edy Rooslan Santoso ◽  
Ronny Durrotun Nasihien
Keyword(s):  
Waste Management ◽  
Construction Projects ◽  
Green Building ◽  
Project Development ◽  
Construction Waste ◽  
Pareto Analysis ◽  
Waste Index ◽  
Development Evaluation ◽  
Pareto Method ◽  
High Level

Surabaya as one of the metropolitan cities in Indonesia, has a high level of project development and an attraction for the community. This is predicted to provide potential changes in environmental quality such as decreased road performance, wastewater and increased volume of waste generation, increased noise and the emergence of community perceptions and concerns about the planned activity. The construction of construction projects will always produce a considerable amount of waste, so that if management is not carried out, the construction waste can become a serious problem for the environment. The waste management model is basically carried out through the stages of avoid, reduce, recycle, and dispoal. This study aims to determine the material that has the greatest potential to produce construction waste. The method used in this study is first to use the Pareto method, the first step that must be done is to rank using Trading Consumable Materials (TCM) based on the total price so that a large price is obtained into the first order, then using the Pareto method to determine the material to be investigated in determining the most construction waste. Furthermore, the second one uses the waste level calculation to determine the waste volume from the results of the Pareto analysis that has been obtained. Furthermore, the third is the calculation of the waste index to determine the volume of residual construction waste in the project in m2 in each day, and the last is the calculation of waste cost to determine whether a large waste volume will produce a large waste as well.

scholarly journals MAJOR FACTORS IMPEDING THE IMPLEMENTATION OF WASTE MANAGEMENT IN AUSTRALIAN CONSTRUCTION PROJECTS

2018 ◽  
Vol 13 (3) ◽  
pp. 101-121 ◽  
Author(s):  
Nilupa Udawatta ◽  
Jian Zuo ◽  
Keri Chiveralls ◽  
Hongping Yuan ◽  
Zillante George ◽  
...  
Keyword(s):  
Waste Management ◽  
Human Factors ◽  
Construction Projects ◽  
Management Practices ◽  
Early Stage ◽  
Primary Data ◽  
Project Characteristics ◽  
Technical Factors ◽  
Waste Management Practices ◽  
Major Factors

This article aims to identify barriers to implementing waste management practices in construction projects and their interrelationship, based on the particular context of Australia. Interviews and a questionnaire survey were conducted as the primary data collection methods supported by the findings of a charrette. The findings reveal twenty critical barriers to implementing waste management practices in Australian construction projects. Four underlying factors that impede waste management practices are extracted based on results of an exploratory factor analysis. These include rigidity of construction practices, construction project characteristics, awareness, experience and commitment, and the nascent nature of waste management. The study also finds that while both human factors and technical factors act as barriers to implementing waste management practices in Australian construction projects, human factors are more dominant. Thus, it is essential to address all these barriers in the early stage of construction projects for reducing waste generation.

scholarly journals Assessing Economic Benefits through Waste Efficient Drivers in Mega Construction Projects: A Case of Pakistan

2020 ◽  
Vol III (I) ◽  
pp. 1-16
Author(s):  
Bilal Anwar ◽  
Muneeb Asif ◽  
Muhammad Imran Ashraf
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Management Practices ◽  
Economic Benefits ◽  
Waste Minimization ◽  
Huge Amount ◽  
Cross Sectional ◽  
Construction Waste ◽  
Cross Sectional Design ◽  
Waste Management Practices

Waste disposal has become an issue worldwide and the major cause of this issue is considered to be the construction activities producing wastes. Pakistan being the 6 most populated country in the world is considered to have a huge amount of waste due to the various construction and particularly megaprojects and this amount of construction waste is increasing consistently in the country. Pakistan produces of construction waste per year and is increasing annually by 2%. These increasing wastes and issues associated with these construction wastes lead to a crucial need for improvement of waste management practices in the construction industry of the country through various measures. Despite of the large need for waste minimization research in Pakistan, , deductive approach was used, and quantitative method was selected, the present study has used cross-sectional design. The researcher used a sample of 323 individuals and conducted a questionnaire-based study.

scholarly journals The Case for Sustainable Concrete Waste Management in Qatar

2019 ◽  
Vol 5 (1) ◽  
pp. p1
Author(s):  
Soud Khalifa Al-Thani ◽  
Sungho Park
Keyword(s):  
Waste Management ◽  
Construction Industry ◽  
Construction Projects ◽  
Management Practices ◽  
Green Building ◽  
Waste Recycling ◽  
Current Status ◽  
Local Case ◽  
Concrete Production ◽  
Recycle And Reuse

The construction industry is a major generator of waste. There are many challenges associated with implementing sustainable methods to manage construction waste. While the construction industry in the State of Qatar has been adopting plenty of progressive practices, waste management, especially of concrete waste, has not advanced notably. In addition to the limited supply of limestone suitable for use as natural aggregate for concrete production in Qatar, the ability to recycle and reuse concrete waste is critical to reducing environmental impacts to meet national, regional and global environmental goals. Therefore, this research aims to identify the current status of concrete waste management practices in construction projects in Qatar exemplified by a local case-study project. Concrete waste was particularly monitored over the span of the construction stage of a large research and development facility in Qatar, benchmarking trends and practices on a certified “green” building. In response, this study addresses key challenges to concrete waste recycling and reuse to then recommend opportunities of advancements in local concrete waste management and reuse.

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