On implementation of waste management systems in the Hong Kong construction industry using spectral methods

2009 ◽  
Author(s):  
Vivian W. Y. Tam ◽  
Khoa N. Le
Keyword(s):  
Hong Kong ◽  
Waste Management ◽  
Construction Industry ◽  
Spectral Methods ◽  
Management Systems

scholarly journals REVIEW ON WASTE MANAGEMENT SYSTEMS IN THE HONG KONG CONSTRUCTION INDUSTRY: USE OF SPECTRAL AND BISPECTRAL METHODS / ATLIEKŲ TVARKYMO SISTEMŲ HONKONGO STATYBŲ SEKTORIUJE APŽVALGA: SPEKTRINIO IR BISPEKTRINIO METODŲ TAIKYMAS

2012 ◽  
Vol 18 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Vivian W. Y. Tam ◽  
Khoa N. Le ◽  
S. X. Zeng
Keyword(s):  
Hong Kong ◽  
Waste Management ◽  
Construction Industry ◽  
Construction Projects ◽  
Power Spectra ◽  
Management Systems ◽  
Structured Interviews ◽  
Construction Waste ◽  
Building Components ◽  
Concrete Recycling

The Hong Kong government has implemented various measures to reduce waste, including a waste disposal ordinance, a green manager scheme, a waste reduction framework plan, a pilot concrete recycling plant, waste management systems and a landfill charging scheme. However, there are difficulties in implementing the waste management systems for contractors. This paper examines the existing implementation of waste management systems in the Hong Kong construction industry. Major sources of construction waste, awareness to install environment-friendly activities, benefits, difficulties and recommendations in the implementation of waste management systems are discussed. Questionnaire survey and structured interviews are conducted. Power spectra and bispectra of the survey data are introduced to assess the implementation of the existing waste management systems. It is found that formwork and temporary hoardings are the major sources of construction waste. Improving environmental performance is ranked as the least project scope for construction projects. “Propose methods for reducing waste” is the major benefit gained. However, “Lack of well-known effective waste management methods” is the major difficulty encountered by organisations. “Use of metal formwork”, “Use of prefabricated building components” and “Use of non-timber hoarding” are the recommended methods to improve the existing implementation of waste management systems. Santrauka Honkongo valdžia įdiegė įvairių priemonių atliekų kiekiui mažinti, įskaitant atliekų šalinimo potvarkį, žaliojo tvarkytojo planą, bendrąjį atliekų mažinimo planą, bandomąją betono perdirbimo gamyklą, atliekų tvarkymo sistemas ir sąvartyno mokesčių planą. Tačiau diegiant atliekų tvarkymo sistemas rangovams kyla sunkumų. Šiame darbe nagrinėjamos Honkongo statybų sektoriuje jau diegiamos atliekų tvarkymo sistemos. Aptariami pagrindiniai statybinių atliekų šaltiniai, žinios apie galimą aplinkai nekenksmingą veiklą, taip pat atliekų tvarkymo sistemų diegimo nauda, sunkumai ir rekomendacijos. Atliekamos anketinės apklausos ir nustatytos struktūros pokalbiai. Pasitelkus per apklausas surinktų duomenų galios spektrus ir bispektrus, įvertinamas esamų atliekų tvarkymo sistemų diegimas. Nustatoma, kad pagrindiniai statybinių atliekų šaltiniai – klojiniai ir laikinos tvoros. Aplinkosaugos charakteristikų gerinimas statybos projektuose laikomas mažiausia projekto dalimi. Pagrindinė gauta nauda – siūlomi atliekų kiekio mažinimo metodai. Tačiau didžiausias organizacijoms kylantis sunkumas – žinomų efektyvių atliekų tvarkymo metodų stoka. Gerinant šiuo metu diegiamas atliekų tvarkymo sistemas, rekomenduojama taikyti tokius metodus: metalinius klojinius, surenkamuosius statinių elementus ir laikinas tvoras ne iš medžio.

scholarly journals STAKEHOLDER PERCEPTIONS OF THE BENEFITS AND BARRIERS OF IMPLEMENTING ENVIRONMENTAL MANAGEMENT SYSTEMS IN THE NIGERIAN CONSTRUCTION INDUSTRY

2016 ◽  
Vol 24 (2) ◽  
pp. 79-89 ◽  
Author(s):  
Victoria O. OWOLANA ◽  
Colin A. BOOTH
Keyword(s):  
Environmental Management ◽  
Waste Management ◽  
Construction Industry ◽  
Online Survey ◽  
Small And Medium Enterprises ◽  
Weighted Average ◽  
Iso 14001 ◽  
Management Systems ◽  
Environmental Management Systems ◽  
Technological Support

This study investigates stakeholder opinions of the major benefits and barriers of Environmental Management Systems (EMS) to the Nigerian construction industry, and the perceived issues to EMS adoption among organisations in the industry. The study highlights the environment as an important stakeholder in the industry because it affects and is affected by construction activities on a regular basis. It identifies the importance of ISO 14001 in ensuring adequate consideration for the environment is maintained on construction projects. The research adopts a quantitative approach by analysing responses from an online survey among construction industry professionals in Nigeria. The questions on the survey were drawn from a similar study carried out in Asia and the results were analysed using the Weighted Average and Standard Deviation statistical approach. Results reveal that the major benefits of EMS to the Nigerian construction industry were improved efficiency in waste management and environmental protection, as well as an overall increase in employee motivation due to better opportunities for training and development. Lack of technological support in organisations and the high cost of implementing EMS were viewed as the major barriers towards its uptake in construction companies. The findings also indicate that a feasible EMS implementation strategy must not ignore the unique nature of the Nigerian construction industry, which comprises mostly small and medium enterprises. The study concludes by recommending the use of a waste management plan based on the Reuse-reducerecycle-Recover model and an employee training plan to ensure continuous improvement in the organisation’s environmental management strategy.

scholarly journals IMPACT OF CIRCULAR CONSTRUCTION ON DEMOLITION WASTE MANAGEMENT IN THE INDIAN CONSTRUCTION INDUSTRY

2021 ◽  
Vol 8 (1) ◽  
pp. 12-24
Author(s):  
Kranti kumar Myneni ◽  
Rajan D
Keyword(s):  
Literature Review ◽  
Waste Management ◽  
Construction Industry ◽  
Questionnaire Survey ◽  
Data Interpretation ◽  
Management Systems ◽  
Demolition Waste ◽  
Motivation Factors ◽  
The World ◽  
Excess Amount

In recent times due to the Indian economic growth, there is a surge in construction activities. This surge has led to an excess amount of demolition waste that is produced. According to the Building Material Promotion Council, India generates an estimated 150 million tons of C and D waste every year. Some existing initiatives and the significant stakeholders' involvement have created the demolition waste management systems essential in the building’s demolition phase. The research in the C and D and Awareness program for C and D waste that initiated has led to the implementation of some waste management systems in the building's demolition phase. In India, the amount of demolition waste produced is higher than the construction waste produced while constructing buildings. So, it is essential for the demolition waste mitigation plan in the building's demolition phase. The study aims to know circular construction and current demolition waste management performance in the Indian construction industry. Through literature review, demolition waste management systems that are carried out all around the world are collected. The current practices carried out by different stakeholders practicing in India are known through a questionnaire survey. Data interpretation is made using the data collected in the literature review and the questionnaire survey. This research identified the significant benefits, barriers, and motivation factors to implement the waste management system, and proposing any necessary changes. Designer innovation and BIM deconstruction is considered as one of the barrier-breaking innovation in adopting the circular construction.

ENVIRONMENTAL MANAGEMENT SYSTEMS IN THE CONSTRUCTION INDUSTRY: A REVIEW

2016 ◽  
Vol 15 (2) ◽  
pp. 453-460 ◽  
Author(s):  
Jana Selih ◽  
Lucila M.S. Campos ◽  
Andrea C. Trierweiller ◽  
Danielly Nunes de Carvalho
Keyword(s):  
Environmental Management ◽  
Construction Industry ◽  
Management Systems ◽  
Environmental Management Systems

scholarly journals Poland’s Proposal for a Safe Solution of Waste Treatment during the COVID-19 Pandemic and Circular Economy Connection

2021 ◽  
Vol 11 (9) ◽  
pp. 3939
Author(s):  
Krzysztof Pikoń ◽  
Nikolina Poranek ◽  
Adrian Czajkowski ◽  
Beata Łaźniewska-Piekarczyk
Keyword(s):  
Thermal Treatment ◽  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Economic Impact ◽  
Circular Economy ◽  
Waste Treatment ◽  
Management Systems ◽  
Waste Streams

The purpose of the study presented in this text is to show the influence of COVID-19 on waste management systems and circular economy stream, and their impact on circular economy, particularly the economic impact of the pandemic on the waste management sector, impact on circular economy objectives’ implementation as well as additional challenges like the need for hygienization of waste streams during different implementation efforts, such as changes in the municipal solid waste market and different waste processes of their disposal. Additionally, some methods—such as thermal treatment—which seemed to be not fully aligned with the circular economy approach have advantages not taken into account before. Incineration of higher volume of waste affects the waste structure and will change some of the circular economy objectives. The analysis was carried out on the example of the Polish market.

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