scholarly journals Assessment of Construction Waste Management Practice in Mekelle, northern Ethiopia: Challenges and Opportunities

2021 ◽  
Vol 13 (1) ◽  
pp. 177-190
Author(s):  
Tewodros Alemayehu ◽  
Abdulaziz Osman ◽  
Haddush Goitom
Keyword(s):  
Waste Management ◽  
Management Practices ◽  
Management Practice ◽  
Local Level ◽  
Northern Ethiopia ◽  
Management Options ◽  
Construction Waste ◽  
Illegal Dumping ◽  
Challenges And Opportunities ◽  
The City

The rapid economic growth and urbanization in Ethiopia have led to extensive construction activities in major cities. Construction activities have known to generate large quantities of wastes that pose serious environmental problems. This paper presents the challenges of construction waste management practices in Mekelle city and explores appropriate measures to address the issues in a more sustainable way. Field observation, questionnaire survey, interviewing of public sector officials at different levels was conducted to identify the source and management options of construction waste in the city. The findings showed that the majority of survey participants felt that their firms have taken various measures to manage construction waste. It was revealed that 40% of the respondents exercise illegal dumping as a common method of waste management, which is closely followed by reuse and recycling. It is evident that over 75% of the construction- generated has potential for recycling and reuse as backfilling and base for roads and buildings. The increase in the number of illegal dumping sites in the city represents the failure to properly control and implement effective construction waste management. It was suggested that sustainable solution for construction waste management at local level depends on increasing awareness and promoting reusing and recycling of construction waste.

scholarly journals A study on the potential for sustainable waste management in the Greater Toronto Area

2021 ◽  
Author(s):  
Md Shamsul Alam
Keyword(s):  
Waste Management ◽  
Management Practices ◽  
Waste Treatment ◽  
Management Options ◽  
Source Reduction ◽  
Greater Toronto Area ◽  
Toxic Emissions ◽  
Organic Waste Treatment ◽  
Waste Management Practices ◽  
The City

Performance of the residential waste management practices in the Greater Toronto Area (GTA) was studied. The study encompassed identification of waste management practices and analysis of data concerning different management options followed by the Regional Municipalities of Durham, Halton, Peel, York and the City of Toronto during 2002 to 2008. Historically, wastes from the GTA were disposed of in the landfills. Majority wastes [sic] from the GTA were exported to Michigan under a contract which is going to be expired [sic] at the end of 2010. Residents already [sic] opposed to accept new landfills. Toxic emissions from the incinerators are also of great concern to them. Integrated waste management system comprising source reduction, recycling and reuse, diversion through green bin SSO program and the aerobic/anaerobic processing of organic waste treatment can be considered to succeed in achieving the most effective and sustainable solution to the residential waste management problems in the GTA.

scholarly journals A study on the potential for sustainable waste management in the Greater Toronto Area

2021 ◽  
Author(s):  
Md Shamsul Alam
Keyword(s):  
Waste Management ◽  
Management Practices ◽  
Waste Treatment ◽  
Management Options ◽  
Source Reduction ◽  
Greater Toronto Area ◽  
Toxic Emissions ◽  
Organic Waste Treatment ◽  
Waste Management Practices ◽  
The City

Performance of the residential waste management practices in the Greater Toronto Area (GTA) was studied. The study encompassed identification of waste management practices and analysis of data concerning different management options followed by the Regional Municipalities of Durham, Halton, Peel, York and the City of Toronto during 2002 to 2008. Historically, wastes from the GTA were disposed of in the landfills. Majority wastes [sic] from the GTA were exported to Michigan under a contract which is going to be expired [sic] at the end of 2010. Residents already [sic] opposed to accept new landfills. Toxic emissions from the incinerators are also of great concern to them. Integrated waste management system comprising source reduction, recycling and reuse, diversion through green bin SSO program and the aerobic/anaerobic processing of organic waste treatment can be considered to succeed in achieving the most effective and sustainable solution to the residential waste management problems in the GTA.

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.

scholarly journals Conformidade de sistemas de gerenciamento de resíduos da construção civil

2020 ◽  
Vol 9 (19) ◽  
Author(s):  
Daniela Carnasciali de Andrade Mann ◽  
André Nagalli ◽  
Karina Querne De Carvalho
Keyword(s):  
Waste Management ◽  
Construction And Demolition Waste ◽  
Legal Compliance ◽  
Demolition Waste ◽  
Environmental Certification ◽  
Construction Waste ◽  
Palabras Clave ◽  
Environmental Audits ◽  
The City ◽  
Poor Management

Resumo Normas relacionadas à gestão de Resíduos de Construção Civil (RCC) estão vigentes no Brasil há mais de uma década. O intuito dessa gestão é amenizar os impactos ambientais decorrentes do gerenciamento indevido desses resíduos. O objetivo do presente trabalho é investigar a conformidade técnica e legal de sistemas de gerenciamento de resíduos de construção civil no município de Curitiba. Para tal, elaborou-se uma lista de verificação baseada nas normas em vigor e em alguns modelos de certificações ambientais, como: LEED, AQUA, CASBEE, BREAM e HQE. 24 obras de edifícios residenciais e comerciais foram  visitadas — com ou sem certificação ambiental. Essa lista de verificação foi aplicada nas construções, para realizar um diagnóstico do setor. Apesar da gestão de resíduos ser obrigatória e restritiva à obtenção dos certificados de conclusão de obra, os resultados da pesquisa demonstraram que há problemas na segregação, acondicionamento e transporte dos resíduos. Entretanto, a falta de conscientização e a aparente conformidade documental não se traduz em efetivo gerenciamento dos RCC. Palavras-chave: Resíduos de construção e demolição. Gestão de resíduos. Resíduos sólidos. Auditorias ambientais. Abstract Standards related to the management of Construction Waste (CW) have been in force in Brazil for more than a decade. The goal of this management is to alleviate the environmental impacts resulting from the poor management of these wastes. The objective of this work is to investigate the technical and legal compliance of construction waste management systems in the city of Curitiba. To this end, a checklist was drawn up based on current standards and on some models of environmental certifications, such as: LEED, AQUA, CASBEE, BREAM and HQE. 24 works of residential and commercial buildings were visited — with or without environmental certification.  A checklist was applied, in these buildings, to promote a diagnosis of the sector. Although waste management is mandatory and restrictive to obtain building completion certificates, the research results showed that there are problems in the segregation, packaging and transport of waste. However, the lack of awareness and the apparent documentary compliance does not translate into effective management of the CW. Keywords:  Construction and demolition waste. Waste management. Solid waste. Environmental audits. Resumen Normas relativas a la gestión de Residuos Sólidos de Construcción Civil (RCC) están vigentes en Brasil hace más de una década. La intención de esa gestión es amenizar los impactos ambientales producidos por la gestión inadecuada de esos residuos. El objetivo de este trabajo es investigar la conformidad técnica y legal de sistemas de gestión de residuos de la construcción civil en el municipio de Curitiba. Para ello, se elaboró una lista de cotejo basada en las normas vigentes y en algunos modelos de certificaciones ambientales como: LEED, AQUA, CASBEE, BREAM y HQE. Se visitaron 24 obras de edificios residenciales y comerciales — con o sin permiso ambiental. Se aplicó esa lista de cotejo en las construcciones, para realizar un diagnóstico des sector. Aunque la gestión de residuos sea obligatoria y restrictiva para la obtención de las certificaciones de conclusión de obra, los resultados de la investigación demostraron que hay problemas en la segregación, acondicionamiento y trasporte de los residuos. Sin embargo, la falta de conciencia y la aparente conformidad en materia de documentos no se traduce en una gestión eficiente de los RCC. Palabras-clave: Residuos de construcción y demolición. Gestión de residuos. Residuos sólidos. Auditorías ambientales.

Assessment of solid waste management practice in the university campus

2021 ◽  
Vol 22 (3) ◽  
pp. 561-575
Author(s):  
Saad Dahlawi ◽  
Mahmoud F. El Sharkawy
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Management Practices ◽  
Solid Waste Management ◽  
Management Practice ◽  
Chemical Properties ◽  
Management Program ◽  
University Campus ◽  
Content Type ◽  
The University

Purpose Municipal solid waste (MSW) consists mainly of several recyclable materials such as paper and cardboard. Inside the educational institutes, especially universities, MSW is generated from several facilities including offices and cafeterias. Without an effective management program, solid waste can have detrimental impacts on the environment. This paper aims to assess the solid waste management practices followed at the main campus of Imam Abdulrahman Bin Faisal University (IAU), Dammam – Saudi Arabia. Design/methodology/approach The MSW samples were collected from different sources inside the IAU campus such as the college buildings (such as the teaching rooms and staff offices), the administrative buildings and services buildings (e.g. the main library, the photocopying center, the restaurant and cafeteria) at least one time per week during a full academic term (January–May) of the academic year 2017–2018. The collected MSW samples were segregated into seven categories, and the net amount of each category and the overall weight of the MSW were determined once every week. The MSW samples were characterized for physical and chemical properties including moisture, carbon and ash contents. Food product waste (FPW) of the main university restaurant was studied separately. Findings Data on the composition of MSW samples revealed that 80% of wastes were recyclable, 19% as compostable materials, while only 1% of the materials were a non-recyclable waste. More than 73% of the recyclable materials include paper and plastic warranting dire need of an effective solid waste management program. The highest value of FPW was recorded for the breakfast meal. Originality/value Most of the waste generated from the university campus was recyclable type that needs to be handled carefully to avoid its mixing with other types of the waste stream. Waste characterization is an important tool that helps in understanding the amount and pattern of waste generation. It can be used as a decision-making tool for implementing sustainable waste management programs for universities.

Municipal Solid Waste Management

2016 ◽  
pp. 19-43 ◽  
Author(s):  
Jaison Chatsiwa ◽  
Never Mujere ◽  
Avhatendi Bethania Maiyana
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Management Practices ◽  
Solid Waste Management ◽  
Methodological Approach ◽  
Municipal Solid Waste Management ◽  
Urban Settlements ◽  
Waste Management Practices ◽  
The City

The rapid increase in urban population has resulted in poor environmental conditions in urban and peri-urban settlements. In most developing countries, the problem of inefficient municipal solid waste management (MSWM) is endemic. The problem manifests in heaps of uncollected solid waste or ubiquitous illegal dumps on open areas and by the street sides. This paper examines issues of solid waste management practices in the City of Kwekwe in Zimbabwe. It highlights types of waste, its generation, transfer and disposal. A mixed methodological approach including field observations, structured questionnaire survey and face-to-face interviews were employed in the gathering of data for the study. The key findings established to be the factors affecting effective solid waste management in the City are irregular solid waste collection, inadequate operational funding, inappropriate technologies, inadequate staffing, lack of knowledge cooperation and knowledge on the part of the residents. Based on the research findings, principles of environmental stewardship need to be promoted in the City.

scholarly journals Domestic Organic Waste Composting in Madhyapur Thimi, Bhaktapur

2013 ◽  
Vol 14 (1) ◽  
pp. 129-136
Author(s):  
Jagannath Aryal ◽  
Anand Shova Tamrakar
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Organic Waste ◽  
Management Practices ◽  
Solid Waste Management ◽  
Management Practice ◽  
Crop Productivity ◽  
Maximum Temperature ◽  
Nutrient Analysis ◽  
Physico Chemical

Organic waste composting is an important waste management practice that can reduce the volume of municipal solid waste and increase crop productivity. A study was carried out in Madhyapur Thimi, Bhaktapur in order to develop understanding of different methods of composting for sustainable solid waste management practices. Solid waste was collected randomly from 50 households in the area and segregated manually. The biodegradable waste was composted through pile (aerobic), aerobic bin, anaerobic (pit) and vermicomposting process. The physico-chemical and microbial analysis of composts were carried out in laboratory whereas significance of composts on crop productivity was tested in the study area. The study showed that 81.4% of the waste generated was biodegradable. The physico-chemical and microbial analyses of the compost samples showed pH range of 7.6 to 8.2 and moisture content of 54.5% to 69.5% for different composts. The maximum temperature (62°C) was observed in aerobic (pile) composting. The nutrient analysis (oganic matter, nitrogen, phosphorus, potassium and C: N ratio) of different composts showed that vermicompost was the most among all the composts. The total bacterial and fungal count varied from 3.91 x 104 to 8.05 x 106 cfu/g and 1.30 x 103 to 3.25 x 104 cfu/g respectively. The vermicompost was found rich in microbial population too. The application of vermicompost at 6.25 mt/ha in the study area resulted in increasing in height, diameter and yield of cauliflower by 15.62%, 37.58% and 38.95% respectively over farm yard manure. The height, diameter and yield of cauliflower grown in different composts was found to be significantly different (P<0.05). Nepal Journal of Science and Technology Vol. 14, No. 1 (2013) 129-136 DOI: http://dx.doi.org/10.3126/njst.v14i1.8933

scholarly journals Challenges Towards Reducing Illegal Dumping Activities in the Construction Industry

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Mohd Hilmi Izwan Abd Rahim ◽  
◽  
Sulzakimin Mohamed ◽  
Narimah Kasim ◽  
Mazianah Rahmat ◽  
...  
Keyword(s):  
Developing Countries ◽  
Content Analysis ◽  
Waste Management ◽  
Construction Industry ◽  
Construction Projects ◽  
Negative Impact ◽  
Structured Interviews ◽  
Construction Waste ◽  
Illegal Dumping

This nowadays an increasing number of construction projects in Malaysia have contributed to the production of construction waste which has had a negative impact on the environment, especially through illegal dumping. The increasing number of illegal dumping activities is a sign that construction waste management needs to be examined. To date, a comprehensive criterion for construction waste management, in developing countries is still not clearly defined. Therefore, the objectives of this paper are to investigate current illegal dumping activities, and identify the challenges towards reducing illegal dumping activities in the Malaysian construction industry. Hence, this research conducted interviews with 20 expert stakeholders related to construction waste management in order to scrutinise illegal dumping activities in Malaysia. The data from these semi-structured interviews were analysed by content analysis. The findings are used to determine the current challenges for reducing illegal dumping activities in the Malaysian construction industry. The elements in the current findings are potentially to improve construction waste management in order to archive the proper construction waste management. Finally, this findings will help to identify strategies to reduce illegal dumping activities and to enhance challenges towards reducing illegal dumping activities in the Malaysian construction industry.

Life cycle comparative assessment of pet bottle waste management options: A case study for the city of Bauru, Brazil

2021 ◽  
Vol 119 ◽  
pp. 226-234
Author(s):  
Eduardo J.P. Martin ◽  
Deborah S.B.L. Oliveira ◽  
Luiza S.B.L. Oliveira ◽  
Barbara S. Bezerra
Keyword(s):  
Life Cycle ◽  
Waste Management ◽  
Comparative Assessment ◽  
Management Options ◽  
The City

Developing a framework for sacred grove management using stakeholder analysis: evidence from sacred groves in Gujarat, India

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amit Pandey ◽  
Kavita Sardana ◽  
Sandeep Kumar Gupta
Keyword(s):  
Management Practices ◽  
Management Practice ◽  
Stakeholder Analysis ◽  
Best Management Practice ◽  
Management Option ◽  
Sacred Groves ◽  
Management Options ◽  
Content Type ◽  
Goods And Services ◽  
Best Management

PurposeThe purpose of this study is to use the framework of stakeholder analysis in a participatory democracy, used in forest management planning, for arriving at the best management option for selected sacred groves of Kachchh. This is achieved by accounting for economic, cultural and ecological values and the resulting outcomes in the complex institutional mechanism. Additionally, this study provides a framework for complex decision-making that characterizes the management of sacred groves involving multiple criteria and options accounting for multiple stakeholders that involve conflicting interests.Design/methodology/approachThe analytical hierarchy process was used to calculate the global priorities of management options using the relative importance of stakeholders, weights of different decision criteria to arrive at the best management practice for selected groves of Kachchh. The global priorities of management options rank management practices based on stakeholders' values and their effects on the choice of management strategy as well as on the potential to attain a compromise between competing interests. For this purpose, survey responses of 141 individuals belonging to seven different stakeholder categories were analyzed. Along with focus group discussions, and personal interviews, a stratified random sampling technique was used to survey respondents.FindingsBased on the global priority weights of the alternatives, it is determined that the restoration management option (guggal is restored by planting new guggal sapplings, cattle grazing is prohibited and high levels of ecosystem goods and services are provided) had the highest score, followed by the preservation management option (grazing is allowed on the periphery, juvenile guggal is preserved and moderate ecosystem goods and services are provided). Therefore, restoration of sacred groves is the best management practice of sacred groves in West Kachchh, offering a compromise between maximizing provision of ecosystem services and economic benefits in terms of allowing cattle grazing.Originality/valueThough there are several studies on best management practices for community-owned forests, irrigation systems, and pasture lands, and the role of local institutions in sustaining these common-pool resources; such studies for sacred groves are absent, despite sacred groves being one of the longest surviving common-pool resources that has sustained it over several decades. This is the first study that uses the framework of stakeholder analysis to arrive at the best management practice for sacred groves. The uniqueness of the study lies in a comprehensive evaluation of ecological–economic–cultural interests of multiple stakeholders toward management of sacred groves.

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