scholarly journals Experimental Investigation on Concrete with E-waste - A Way to Minimize Solid Waste Deposition

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
P. Muthupriya ◽  
B. Vignesh Kumar
Keyword(s):  
Construction Industry ◽  
Electronic Waste ◽  
Electronic Devices ◽  
Flexible Pavement ◽  
Consumer Electronics ◽  
Waste Plastics ◽  
Circuit Boards ◽  
The World ◽  
Conventional Material ◽  
Plastic Components

In recent years, the generation of Electronic waste (E-waste) has increased to a greater extent worldwide. The use of electronic devices has proliferated in recent decades and proportionality, and the quantity of electronic devices that are disposed of is growing rapidly throughout the world. Electronic waste (E-waste) typically includes general household electronics, discarded electronic gadgets, and circuit boards. With the growing use of consumer electronics, there is a huge generation of E-waste every day. Reuse of E-waste plastics as aggregates or filler in some or other forms of in construction industry may be considered as economical and technically viable for solving the disposal of a large amount of waste and this can be used as aggregates and fine filler in concrete or the construction of flexible pavement. The idea was to determine whether E-waste plastic components can be used as an alternative to conventional material like bitumen, filler in the bituminous mix in a flexible pavement structure. This is an effective alternative solution to reduce the growing quantity of E-waste.

Circular Economy Model for the E-Waste Management Sector

2020 ◽  
pp. 216-230
Author(s):  
Dileep Baburao Baragde ◽  
Amit Uttam Jadhav
Keyword(s):  
Information Technology ◽  
Waste Management ◽  
Circular Economy ◽  
Electronic Waste ◽  
Electronics Industry ◽  
Consumer Electronics ◽  
Electronic Equipment ◽  
Economy Model ◽  
The World

The circular economy (CE) model has become highly relevant in recent years, with the electronics industry being one of the divisions that have thought about its application. Regardless of just a constrained measure of writing being accessible on waste electric and electronic equipment (e-waste), electronic waste or e-waste is a developing and quickly developing test for waste administration in the world. E-waste is a term for electronic items that have turned out to be undesirable, non-working, or outdated, and have basically come to the 'part of the arrangement', inside only a couple of brief years, given the quick innovative advances inside the business. E-waste is created from anything electronic —PCs, TVs, screens, PDAs, PDAs, VCRs, CD players, fax machines, printers, and coolers— and is commonly broken into two classes, information technology (IT) and consumer electronics (CE), on account of divergent systems and technologies required for recycling these products.

scholarly journals Ticking time bomb: implications of the COVID-19 lockdown on e-waste management in developing countries

2021 ◽  
Vol 3 ◽  
Author(s):  
Oluwadamilola A. Adejumo ◽  
Olubisi F. Oluduro
Keyword(s):  
Developing Countries ◽  
Waste Management ◽  
Electronic Waste ◽  
Electronic Devices ◽  
Information Communication ◽  
Global Village ◽  
Face To Face ◽  
The World ◽  
Resultant Increase ◽  
Physical Interactions

The COVID-19 pandemic has altered the course of events globally since the outbreak of coronavirus disease (COVID-19) in late 2019 giving further credence to the long-standing belief that the world is indeed a global village. There have been different responses by countries to the raging pandemic including the imposition of lockdowns, quarantine and isolation. The imposition of lockdowns, whether full or partial, has not been without major consequences, which has led to information, communication and technological (ICT)-based measures to minimise the effect of the lockdown and as an alternative to physical interactions. The use of ICT devices to bridge the gaps created by the lockdown on schools, businesses and other sectors has led to the increased use of electronic devices. The challenge of electronic waste (e-waste) management in developing countries has been around for a while and the increased use of electronic devices is likely to compound the challenge during and post COVID-19. Whilst the development of ICT-based options as viable alternatives to face-to-face interactions may not be a negative development, this article argues that the existing frameworks are inadequate to manage the resultant increase in e-waste in most developing countries and that there is need now more than ever before for developing countries to exercise caution in embracing these ICT-based options without putting in place measures to ensure that there is increased capacity to manage and dispose of the e-waste created.

scholarly journals Food Waste-Assisted Metal Extraction from Printed Circuit Boards: The Aspergillus niger Route

2021 ◽  
Vol 9 (5) ◽  
pp. 895
Author(s):  
Carlotta Alias ◽  
Daniela Bulgari ◽  
Fabjola Bilo ◽  
Laura Borgese ◽  
Alessandra Gianoncelli ◽  
...  
Keyword(s):  
Solid State ◽  
Aspergillus Niger ◽  
Food Waste ◽  
Solid State Fermentation ◽  
Printed Circuit Boards ◽  
Electronic Waste ◽  
Metal Extraction ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards

A low-energy paradigm was adopted for sustainable, affordable, and effective urban waste valorization. Here a new, eco-designed, solid-state fermentation process is presented to obtain some useful bio-products by recycling of different wastes. Urban food waste and scraps from trimmings were used as a substrate for the production of citric acid (CA) by solid state fermentation of Aspergillus niger NRRL 334, with a yield of 20.50 mg of CA per gram of substrate. The acid solution was used to extract metals from waste printed circuit boards (WPCBs), one of the most common electronic waste. The leaching activity of the biological solution is comparable to a commercial CA one. Sn and Fe were the most leached metals (404.09 and 67.99 mg/L, respectively), followed by Ni and Zn (4.55 and 1.92 mg/L) without any pre-treatments as usually performed. Commercial CA extracted Fe more efficiently than the organic one (123.46 vs. 67.99 mg/L); vice versa, biological organic CA recovered Ni better than commercial CA (4.55 vs. 1.54 mg/L). This is the first approach that allows the extraction of metals from WPCBs through CA produced by A. niger directly grown on waste material without any sugar supplement. This “green” process could be an alternative for the recovery of valuable metals such as Fe, Pb, and Ni from electronic waste.

scholarly journals Construction Sector Contribution to Economic Stability: Malaysian GDP Distribution

2021 ◽  
Vol 13 (9) ◽  
pp. 5012
Author(s):  
Wesam Salah Alaloul ◽  
Muhammad Ali Musarat ◽  
Muhammad Babar Ali Rabbani ◽  
Qaiser Iqbal ◽  
Ahsen Maqsoom ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Construction Industry ◽  
Pearson Correlation ◽  
Impulse Response Function ◽  
Equilibrium Analysis ◽  
Construction Sector ◽  
Causality Test ◽  
Vector Error Correction ◽  
The World ◽  
Pearson Correlation Test

The construction sector exerts an exceptional impact on economic development all over the world. Adequate buildings and infrastructures made by the construction sector ensure that a country reaches certain targets like social development, industrialization, freight transportation, sustainable development, and urbanization. This study aims to determine the construction sector’s connectivity with other sectors through complex linkages that contribute immensely to the economy and gross domestic product (GDP). The data were collected from the Department of Statistics Malaysia and the World Bank from the year 1970 to 2019, and the Pearson correlation test, the cointegration test, and the Granger causality test were conducted. The vector error correction model (VECM) was created for short-term and long-term equilibrium analysis and impulse response function (IRF) was performed to study construction industry behavior. Afterwards, the forecasting was done for the year 2020 to 2050 of the Malaysian economy and GDP for the required sectors. It was revealed that some sectors, such as agriculture and services, have forward linkages while other sectors, such as manufacturing and mining, are independent of construction sector causality, which signifies the behavior of the contributing sectors when a recession occurs, hence generating significant revenue. The Malaysian economy is moving towards sustainable production with more emphasis on the construction sector. The outcome can be used as a benchmark by other countries to achieve sustainable development. The significance of this study is its usefulness for experts all over the world in terms of allocating resources to make the construction sector a sustainable sector after receiving a shock. A sustainable conceptual framework has been suggested for global application that shows the factors involved in the growth of the construction industry to ensure its sustainable development with time.

Strategic Thinking of Construction Material Based on Ecology

2010 ◽  
Vol 150-151 ◽  
pp. 1199-1202
Author(s):  
Hui Pang ◽  
Bing Zhao ◽  
Xiao Min He
Keyword(s):  
Construction Industry ◽  
Construction Material ◽  
Strategic Thinking ◽  
Energy Structure ◽  
Chinese Government ◽  
Gas Emission ◽  
Green House Gas ◽  
The World ◽  
New Energy ◽  
New Construction

Chinese government has announced to the world that, the carbon emission will decrease by 40-45% in 2020, after the World Climate Summit in 2009. To ensure people’s living quality, while limit the green house gas emission, the construction industry - a big energy consumer - must endeavor to explore new construction method, research and develop new construction material and use new energy structure to make our promise come true.

scholarly journals Integrated Project Delivery Implementation Challenges in the Construction Industry

2019 ◽  
Vol 5 (8) ◽  
pp. 1672-1683 ◽  
Author(s):  
Zahra Kahvandi ◽  
Ehsan Saghatforoush ◽  
Ahad ZareRavasan ◽  
Christopher Preece
Keyword(s):  
Factor Analysis ◽  
Literature Review ◽  
Construction Industry ◽  
Initial Step ◽  
Project Delivery ◽  
Financial Resources ◽  
Integrated Project Delivery ◽  
Implementation Challenges ◽  
The World ◽  
Integrated Project

Huge financial resources are spent in the construction industry all over the world, which are frequently wasted largely due to a lack of proper planning. In recent decades, in an attempt to overcome challenges, various contractual and administrative systems have been used by construction owners/clients. One such system has been Integrated Project Delivery (IPD). Its implementation has, however, experienced drawbacks. Identifying such drawbacks is an initial step in attempting to resolve them, and this paper aims to identify and prioritize the IPD implementation drawbacks in the context of the Iranian construction industry. A comprehensive list of IPD implementation drawbacks is prepared using a questionnaire survey. An in-depth literature review of the IPD concept has been combined with a review of various case studies applying the IPD system. The results were analyzed using the Robust Exploratory Factor Analysis (EFA) method. 22 drawbacks in the Construction Industry were categorized under four themes; contractual, environmental, managerial, and technical. Results show that contractual drawbacks are the most significant. The implication of this research is that identifying and classifying IPD implementation drawbacks provides a useful reference to managers and owners of the construction industry, for identifying and codifying solutions to overcome them.

scholarly journals Plastics waste management: A review of pyrolysis technology

2021 ◽  
Vol 1 (1) ◽  
pp. 50-69
Author(s):  
Wilson Uzochukwu Eze ◽  
◽  
Reginald Umunakwe ◽  
Henry Chinedu Obasi ◽  
Michael Ifeanyichukwu Ugbaja ◽  
...  
Keyword(s):  
Chemical Process ◽  
Liquid Fuel ◽  
Closed Loop ◽  
Raw Materials ◽  
Chemical Processes ◽  
Plastic Waste ◽  
Waste Plastics ◽  
The World ◽  
Pyrolysis Liquid ◽  
Life Options

<abstract> <p>The world is today faced with the problem of plastic waste pollution more than ever before. Global plastic production continues to accelerate, despite the fact that recycling rates are comparatively low, with only about 15% of the 400 million tonnes of plastic currently produced annually being recycled. Although recycling rates have been steadily growing over the last 30 years, the rate of global plastic production far outweighs this, meaning that more and more plastic is ending up in dump sites, landfills and finally into the environment, where it damages the ecosystem. Better end-of-life options for plastic waste are needed to help support current recycling efforts and turn the tide on plastic waste. A promising emerging technology is plastic pyrolysis; a chemical process that breaks plastics down into their raw materials. Key products are liquid resembling crude oil, which can be burned as fuel and other feedstock which can be used for so many new chemical processes, enabling a closed-loop process. The experimental results on the pyrolysis of thermoplastic polymers are discussed in this review with emphasis on single and mixed waste plastics pyrolysis liquid fuel.</p> </abstract>

scholarly journals Issues of Electronic Waste on Life - A Reality

2019 ◽  
Vol 5 (11) ◽  
pp. 112
Author(s):  
Saurabh Mitra ◽  
Jayati Chatterjee Mitra
Keyword(s):  
Information Society ◽  
General Public ◽  
Electronic Waste ◽  
Recent Decade ◽  
It Industry ◽  
The Real ◽  
Human Wellbeing ◽  
The Earth ◽  
The World ◽  
Indian Data

<p>Electronic waste or e-squander is one of the quickest developing issues of the world. E-squander involves a large number of parts, some containing poisonous substances that can adversely affect human wellbeing and the earth if not dealt with legitimately. In India, e-squander the board expect more noteworthy essentialness not just because of the age of its own e-squander, yet additionally as a result of the dumping of e-squander from created nations. This is combined with India's absence of proper foundation and methods for its transfer and reusing. The generation of electrical and electronic gear (EEE) is one of the quickest developing worldwide assembling exercises. Quick monetary development, combined with urbanization and developing an interest for customer merchandise, has expanded both the utilization and the creation of EEE. The Indian data innovation (IT) industry has been one of the real drivers of progress in the economy in the most recent decade and has contributed essentially to the advanced unrest being experienced by the world. New electronic contraptions and machines have invaded each part of our everyday lives, furnishing our general public with more solace, wellbeing, and security and with simple data procurement and trade. The information society anyway is making its own poisonous impressions.</p>

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