Modelling waste generated during construction of buildings using regression analysis

2019 ◽  
Vol 38 (8) ◽  
pp. 857-867 ◽  
Author(s):  
Eduardo de Carvalho Teixeira ◽  
Marco Aurélio Stumpf González ◽  
Luiz Fernando Mälmann Heineck ◽  
Andrea Parisi Kern ◽  
Guilherme Manfredini Bueno
Keyword(s):  
Regression Analysis ◽  
Waste Management ◽  
Theoretical Models ◽  
Waste Generation ◽  
Porto Alegre ◽  
Statistical Parameters ◽  
Local Practices ◽  
Management Plans ◽  
Building Characteristics ◽  
Waste Generation Rate

The building industry is responsible for a large amount of waste, and the measurement and modelling of this waste could be used to develop better waste management plans. Several theoretical models explain the relationships between waste and building characteristics, but local practices may result in different behaviours. This study aimed to measure and analyse the waste generated through construction. It was based on the analysis of 18 building sites located in the region of Porto Alegre, Brazil. Waste was measured at these sites, and the results showed an average waste generation rate of 0.151 m3 m-2. A regression analysis of the collected data presented a satisfactory performance in two models. The first model was developed to explain total waste generation, including the effects of certain attributes, with an R2 = 0.81. The changes in waste generated during construction were estimated. The second model considered time schedules and examined the effect of the construction stage on waste generation, and reached an R2 = 0.91. The model with time indicated an S-shaped relationship. The models presented satisfactory statistical parameters and could be used to produce better waste management plans in the preconstruction stage.

scholarly journals Monitoring Expanse Near Lakhodair Landfill and Mehmood Booti Dump Sites of Lahore, Paksitan

2020 ◽  
Vol 10 (4) ◽  
pp. 40-45
Author(s):  
Maimoona Khalil ◽  
Nausheen Mazhar ◽  
Dania Amjad
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Waste Generation ◽  
Dump Site ◽  
Disease Patterns ◽  
Urban City ◽  
Arc Gis ◽  
Solid Waste Generation ◽  
Waste Generation Rate

Solid waste management in any large urban city like Lahore requires special disposal measures. In thisregard, Lakhodair landfill and Mehmood booti dump sites collect and handle major bulk of all the solid waste comingfrom ten towns of Lahore, with the city’s waste generation rate of being 0.84kg/capita per day. Spatial expanse of boththe sites was calculated in Arc GIS 10.3 system. The findings clearly showed that the extent of both these dump siteshad increased during 2006-2016 due to an enormous rise in solid waste generation. During 2006, the area of MehmoodBooti dump site and Lakhodair Landfill site was only 15 hectares and 17 hectares respectively. By 2016, this area hadincreased to 32 hectares and 52 hectares respectively. The mapping of these two sites can help in future researchesbased on investigating the disease patterns among people residing around these sites and by determining methaneemissions in the study area.

scholarly journals Assessment of Solid Waste Management in Bhaktapur Municipality

2019 ◽  
Vol 7 ◽  
pp. 10-19
Author(s):  
Amit Shankar Ranjit ◽  
Ronish Shakya ◽  
Sushila Gwachha ◽  
Razim Ganesh ◽  
Meera Prajapati ◽  
...  
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Large Scale ◽  
Organic Waste ◽  
Solid Waste Management ◽  
Sample Size Determination ◽  
Household Waste ◽  
Waste Generation ◽  
Special Cases ◽  
Waste Generation Rate

Bhaktapur Municipality has been performing better to keep the city clean. However, scarcity of space for the land filling of the solid waste and proper segregation of waste at the source has been a hurdle for the Municipality. This paper aims to determine solid waste generation rate and to analyze overall situation of solid waste management of Bhaktapur Municipality. However, the data will not represent the seasonal and occasional variations. Additionally, waste from street-sweeping and large-scale institutional and commercial components of the Municipality has not been assessed. Arkin and Colton (1963) was referred for the sample size determination. Sample of 376 households were taken accordingly. Twenty representative samples each for commercial and institutional establishments were selected, and one each for special cases such as hospital, slaughter house and poultry has been assessed. Municipal household waste generation was found to be 0.093kg per capita per day which was chiefly composed of 77% organic, 18% plastic and 3% paper. Organic waste has been a major waste for institutions such as schools whereas at governmental and public offices, paper is the predominantly generated waste. Among commercial establishments, shops and restaurants mostly generate organic waste and that for departmental stores has been paper. Though collection system was found to be satisfactory, treatment and final disposal have been unsustainable. Available treatment facilities have been shut down whereas other infrastructural components have been lacking.

scholarly journals Face Mask Consumption and Medical Waste Generation During the COVID-19 Pandemic in Iran: Challenges and Problems

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Hooshyar Hossini ◽  
Sheida Atashkar ◽  
Tooraj Massahi
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Consumption Rate ◽  
Face Mask ◽  
Medical Waste ◽  
Generation Rate ◽  
Current Status ◽  
Waste Generation ◽  
Continuous Increase ◽  
Waste Generation Rate

Background: The outbreak of COVID-19 has caused a devastating pandemic scenario in the world. The mortality rate has increased and new socio-economic challenges are emerging. Millions of gloves, gowns, face masks, and face shields are used daily to prevent airborne transmission and facilitate the treatment of COVID-19. Mismanagement of these wastes can lead to increased concerns due to their contamination potential. A comprehensive plan to improve the management of medical wastes in every country requires awareness of the current status of solid waste. As a result, the study aimed to calculate and estimate the consumption rate of face masks and medical waste generation rate during the COVID-19 pandemic in Iran. Also, the performance of different departments of medical waste management and future challenges are discussed. Methods: The daily consumption of face masks and medical waste generation were calculated based on the population data, the percentage of the urban population, face mask acceptance rate, the number of face masks needed per person per day, total COVID-19 confirmed cases, and medical waste generation rate (kg/bed/day). Results: The consumption of face masks in Iran is estimated at 46576000 pieces per day. Also, the three provinces of Tehran (9,560,000 pieces), Khorasan Razavi (3,825,600 pieces), and Isfahan (3,523,200 pieces) have the highest consumption rate of masks, respectively. Increasing the number of confirmed COVID-19 cases has increased the medical waste generation rate. Until April 3, 2021, more than 1,920,394 cases of COVID-19 have been confirmed in Iran, and calculations show that the medical waste generation rate in Iran is about 7,585.56 tons per day. Conclusions: COVID-19 is a highly infectious and problematic disease. The continuous increase in the number of confirmed COVID-19 cases has increased face mask consumption rate and medical waste generation rate, and as a result, new challenges have emerged in the field of solid waste management. These emerging challenges in managing solid waste during the COVID-19 pandemic necessitate the development of appropriate waste management policies and strategies.

scholarly journals Assessment of Waste Generation Rate in Teaching Hospitals of Metropolitan City of Pakistan

2020 ◽  
Vol 6 (9) ◽  
pp. 1809-1821
Author(s):  
Samita Arub ◽  
Sajid Rashid Ahmad ◽  
Sana Ashraf ◽  
Zahra Majid ◽  
Sadia Rahat ◽  
...  
Keyword(s):  
Waste Management ◽  
Hospital Staff ◽  
Generation Rate ◽  
Teaching Hospitals ◽  
Waste Generation ◽  
Waste Collection ◽  
Waste Segregation ◽  
Infectious Waste ◽  
Waste Generation Rate ◽  
Collection Practices

Hospital waste management is of vital significance owing to its contagious and hazardous nature as it can produce detrimental effects for both humans and the environment. This work aimed to examine types of waste with respect to waste generation rate in multiple teaching hospitals of metropolitan Lahore. A structured questionnaire survey, site visits, interviews and meetings were conducted in seventeen teaching hospitals. The results have shown that total hospitals average waste, infectious, non-infectious and waste generation rate in Lahore teaching hospitals were 38978 kg/day, 10789 kg/day, 28189 kg/day and 3.7 kg/bed/day, respectively. It is concluded that maximum waste generated in Mayo hospital, Jinnah hospital, Services hospital and Lahore general hospital was 16%, 12%, 12% and 10%, respectively, as per maximum patient’s visits. Positive liner correlation was between number of beds (P=0.917), number of accidents and emergency patients (P=0.75), infectious waste (P=0.998) and (P=1) with total waste. A straight line of linear regression was between (0.9966) infectious waste and (0.9995) general waste with average waste. Although, waste collection practices in these teaching hospitals were observed satisfactory but required training of doctors, nurses and hospital paramedical staff regarding infectious and general waste segregation. It is suggested that hospital staff, waste management and waste collection workers and respective waste management companies should be well trained and aware regarding infectious and non-infectious waste segregation, handling and disposing off procedures.

scholarly journals Improving Concrete Waste Rate Generation of Structure Projects in Leading Construction Firm in Indonesia

2021 ◽  
Vol 3 (4) ◽  
pp. 12-17
Author(s):  
Daniela Dea Hapsari ◽  
Sumarsono Sudarto ◽  
Gembong Baskoro
Keyword(s):  
Waste Management ◽  
Waste Generation ◽  
Current State ◽  
Future State ◽  
Construction Firm ◽  
Actual Field ◽  
Waste Rate ◽  
Waste Generation Rate ◽  
Management Issues

The Construction and Demolition (C&D) industry is very close to various waste management issues as the generation of waste is inevitable in every construction. In Indonesia, to make an applicable implementation of C&D Waste Management, the improvement must be made by looking into the actual field process. The improvement uses DMAIC as the lean tools and VSM to state the current process of material from its delivery on the site into a waste. Waste that is being monitored is the most used materials in the case study project which are concrete. A notable project was taken for the study as it will help other structure projects to imitate the down-to-earth future state, aiming at the reduction of waste generation rate and also business process improvement. The result shows that the process of concrete from orders to waste took eight steps, and three of them are improved, producing 3% lesser waste from the current state. The best scenario WGR were analyzed to also answer the stakeholder interest within the case study.

Evaluation of industrial wastes management practices: Case study of the Savojbolagh industrial zone, Iran

2019 ◽  
Vol 38 (1) ◽  
pp. 44-58
Author(s):  
Mahdi Farzadkia ◽  
Sahand Jorfi ◽  
Mashaallah Nikzad ◽  
Shahram Nazari
Keyword(s):  
Waste Management ◽  
Industrial Waste ◽  
Management Practices ◽  
Generation Rate ◽  
Physical Analysis ◽  
Waste Generation ◽  
Industrial Zone ◽  
Per Capita ◽  
Waste Generation Rate ◽  
Waste Management Practices

The main objective of this research was to investigate the waste characteristics and management activities in the Savojbolagh industrial zone, Iran, in order to rank the active industries from environmental perspectives using an innovative index. First, the industrial categories with over 50 employees were identified and classified according to their production process. Then, 54 industries were selected and all industrial processes, the types and quantities of products, per capita industrial waste generation, physical analysis and management activities in terms of minimisation, storage, processing, recycling and disposal were evaluated. The required data were obtained through questioners, interviews and field observations. A scoring system was prepared for evaluation of environmental status of waste management practices. Results indicated that the total industrial waste generation rate was 67,258 kg d-1, in which 4528 belonged to hazardous waste. Furthermore, the per capita waste generation rate was 5.51 kg d-1. Plastic, paper and cardboard and metals constituted the most fractions of wastes, respectively. Food and beverage, metallic and chemical/plastic industries were the biggest waste generators. Metallic industries with total score of 502.5 and non-metalic-mineral industries with the total score of 114 were categorised as the best and worst industries in terms of waste management practices.

scholarly journals A Study on Small Clinics Waste Management Practice, Rules, Staff Knowledge, and Motivating Factor in a Rapidly Urbanizing Area

2019 ◽  
Vol 16 (20) ◽  
pp. 4044
Author(s):  
Bilal Ahmed Khan ◽  
Aves Ahmed Khan ◽  
Haris Ahmed ◽  
Shazia Shaheen Shaikh ◽  
Zhaiming Peng ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Waste Management ◽  
Hazardous Waste ◽  
Management Practice ◽  
Generation Rate ◽  
Waste Generation ◽  
Level Of Knowledge ◽  
Waste Generation Rate ◽  
Motivating Factor ◽  
Waste Management Practice

Thousands of small clinics in Pakistan are generating dispersed medical waste, unlike large hospitals, small clinic waste management is often ignored. This study was conducted on 135 small clinics in Hyderabad, Pakistan, with the aim to determine small clinics’ waste management practices in contrast to rules, level of knowledge, the environmental impact of disposal methods, and motivating factor analysis to understand the current situation from multiple perspectives. Overall, the waste generation rate was calculated to be 2.01 kg/clinic/day and the hazardous waste generation rate was 0.89 kg/clinic/day, whereas the general waste generation rate was 1.12 kg/clinic/day. The hazardous waste generation rate percentage is found to be higher than those found in large hospitals by 20%. The waste management practice among surveyed clinics was deplorable; none of the clinics were completely following hospital waste management rules of 2005 and thus the absence of proper segregation, storage, transportation, and disposal was commonly encountered during the study. Clinic staff possessed low level of knowledge and awareness, and acquired no training about waste management practice and rules, moreover, frequent employee turnover was noticed too. Additionally, two hypotheses were checked for creditability of motivating factors with an exploratory factor analysis to check their contribution to motivating clinic staff to practice sound healthcare waste management. Out of 10 indicators, nine were found in support of the hypotheses. Hence, it was discovered that active government involvement and financial support in providing training and inspecting small clinics could help in improving the condition. The findings of the present study can play a vital role in documenting evidence, and for policymakers and governments to plan solid waste management of small clinics and other healthcare facilities.

Solid Waste Management in Lae City, Papua New Guinea

2021 ◽  
Vol 47 (2) ◽  
pp. 371-382
Author(s):  
Revanuru Subramanyam
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Papua New Guinea ◽  
Solid Waste Management ◽  
New Guinea ◽  
Generation Rate ◽  
Waste Generation ◽  
Per Capita ◽  
Waste Generation Rate ◽  
The City

Lae city is the capital of the Morobe Province in Papua New Guinea. It is the main land transport corridor, the country's main industrial hub and largest cargo port. As a result of the urbanization and industrialization process, more people had migrated to Lae city for better opportunities. These activities contributed to the generation of a considerable amount of solid waste that has become a real concern. The present research aims to understand the existing practices of Solid Waste Management, to estimate per capita waste generation rate and composition of waste, to identify the issues and challenges faced in this regard and suggest methods for improvement. All wastes from the city are discarded at the Second Seventh Landfill (SSL) open dump site, located about 10 to 12 kilometers drive away from the city, causing enormous pollution to the surrounding environment. The per capita waste generation rate witnessed was 0.312 kg per capita per day with a composition of 66% organic waste, 22% recyclable, and 12% non-recyclable materials. It was found that ineffective legislation, lack of law enforcement were the challenges faced by the Lae city council. Rehabilitation of SSL or the construction of a new sanitary land fill should be recommended for effective management.

APPRAISAL OF MUNICIPAL SOLID WASTE MANAGEMENT (MSWM) IN JIMETA-YOLA ADAMAWA STATE OF NIGERIA: THE NEED FOR INNOVATIVE, PPP STRATEGIES

2015 ◽  
Vol 77 (15) ◽  
Author(s):  
Aminu Liman ◽  
Ibrahim Ngah
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Quantitative Research ◽  
Solid Waste Management ◽  
Municipal Solid Waste Management ◽  
Waste Generation ◽  
Municipal Solid Wastes ◽  
Goods And Services ◽  
Waste Generation Rate

This study try to investigate rates of generation, of municipal solid waste (MSW) in different constituencies of Jimeta-Yola, and examine the strategies use for solid waste management in the metropolis., Over the recent times Jimeta-Yola has witness an influx of population due to the increased in urbanisation and this had led to increase in consumption of goods and services with consequence increased in rate of generation (MSW) of municipal solid waste .The research used quantitative research techniques to evaluate data on solid waste generation rates in Jimeta. The findings revealed that the waste generation rate varies according to the constituencies ranging. Between, 0.42- 0.78/capita/days cutting across low, medium and high density wards. The analysis of waste management profile in the study area shows, there is inadequate management of municipal solid waste in the metropolis. This paper implies evaluation of the generation rates  of municipal solid wastes (MSW) as the basic tool in planning for improve management of solid waste in the Metropolis, with balancing the aim of privatizing of solid waste management,  sustainability in service coverage  and recycling the solid waste into energy generation.

Management of healthcare waste in circumstances of limited resources: a case study in the hospitals of Nablus city, Palestine

2009 ◽  
Vol 27 (4) ◽  
pp. 305-312 ◽  
Author(s):  
Issam A. Al-Khatib ◽  
Yousef S. Al-Qaroot ◽  
Mohammad S. Ali-Shtayeh
Keyword(s):  
Waste Management ◽  
Waste Treatment ◽  
Mean Value ◽  
Medical Waste ◽  
Generation Rate ◽  
Waste Generation ◽  
Healthcare Facilities ◽  
Healthcare Waste ◽  
Healthcare Waste Management ◽  
Waste Generation Rate

The objectives of this study were the assessment of healthcare waste management and the characterization of healthcare waste material generated in the hospitals in Nablus city, Palestine, and furthermore, to estimate the prevalence of hepatitis B among the cleaning personnel working in these hospitals. The medical waste generation rate in kg per bed per day was between 0.59 and 0.93 kg bed— 1 day—1. The waste generation rate in the healthcare facilities of Nablus city hospitals was similar to some other developing countries; however, the percentage of medical wastes in the total waste stream was comparatively high. The density of medical waste at the four hospitals studied ranged between 144.9 and 188.4 kg m— 3 with a mean value of 166.7 kg m—3. The waste segregation and handling practices were very poor. Other alternatives for waste treatment rather than incineration such as a locally made autoclave integrated with a shredder should be evaluated and implemented. The system of healthcare waste management in Nablus city is in need of immediate improvement and attention. Formulating rules and guidelines for medical waste and developing strategies for overcoming the obstacles related to waste management should be considered as an urgent matter.

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