Using Laboratory Experiments and Computer Models for Assessing the Potential Risk of Recycled Waste Materials – Case Studies

2005 ◽  
pp. 1-41
Author(s):  
Dorte Rasmussen ◽  
Margrethe Winther-Nielsen ◽  
Douglas Graham ◽  
Bent Halling-Sørensen
Keyword(s):  
Case Studies ◽  
Potential Risk ◽  
Laboratory Experiments ◽  
Computer Models ◽  
Waste Materials ◽  
Recycled Waste

scholarly journals Bioremediation of polluted soil due to tsunami by using recycled waste glass

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. Azizul Moqsud
Keyword(s):  
Heavy Metals ◽  
Electrical Conductivity ◽  
Laboratory Experiments ◽  
Saline Soil ◽  
Salt Content ◽  
Tohoku Earthquake ◽  
Polluted Soil ◽  
Waste Glass ◽  
Excess Cost ◽  
Recycled Waste

AbstractIn this research, bioremediation of tsunami-affected polluted soil has been conducted by using collective microorganisms and recycled waste glass. The Tohoku earthquake, which was a mega earthquake in Japan triggered a huge tsunami on March 11th, 2011 that caused immeasurable damage to the geo-environmental conditions by polluting the soil with heavy metals and excessive salt content. Traditional methods to clean this polluted soil was not possible due to the excess cost and efforts. Laboratory experiments were conducted to examine the capability of bioremediation of saline soil by using recycled waste glass. Different collective microorganisms which were incubated inside the laboratory were used. The electrical conductivity (EC) was measured at different specified depths. It was noticed that the electrical conductivity decreased with the assist of the microbial metabolisms significantly. Collective microorganisms (CM2) were the highly capable to reduce salinity (up to 75%) while using recycled waste glass as their habitat.

scholarly journals Sustainable Panels Made with Industrial and Agricultural Waste: Thermal and Environmental Critical Analysis of the Experimental Results

2021 ◽  
Vol 11 (2) ◽  
pp. 494
Author(s):  
Paola Ricciardi ◽  
Elisa Belloni ◽  
Francesca Merli ◽  
Cinzia Buratti
Keyword(s):  
Thermal Conductivity ◽  
Life Cycle ◽  
Rice Husk ◽  
Agricultural Waste ◽  
Embodied Energy ◽  
Waste Materials ◽  
Impact Reduction ◽  
Combined Solution ◽  
Order Of Magnitude ◽  
Recycled Waste

Recycled waste materials obtained from industrial and agricultural processes are becoming promising thermal and acoustic insulating solutions in building applications; their use can play an important role in the environmental impact reduction. The aim of the present paper is the evaluation of the thermal performance of recycled waste panels consisting of cork scraps, rice husk, coffee chaff, and end-life granulated tires, glued in different weight ratios and pressed. Six panels obtained from the mixing of these waste materials were fabricated and analyzed. In particular, the scope is the selection of the best compromise solutions from the thermal and environmental points of view. To this aim, thermal resistances were measured in laboratory and a Life Cycle Assessment (LCA) analysis was carried out for each panel; a cross-comparative examination was performed in order to optimize their properties and find the best panels solutions to be assembled in the future. Life Cycle Analysis was carried out in terms of primary Embodied Energy and Greenhouse Gas Emissions, considering a ‘‘cradle-to-gate” approach. The obtained thermal conductivities varied in the 0.055 to 0.135 W/mK range, in the same order of magnitude of many traditional systems. The best thermal results were obtained for the panels made of granulated cork, rice husk, and coffee chaff in this order. The rubber granulate showed higher values of the thermal conductivity (about 0.15 W/mK); a very interesting combined solution was the panel composed of cork (60%), rice husk (20%), and coffee chaff (20%), with a thermal conductivity of 0.08 W/mK and a Global Warming Potential of only 2.6 kg CO2eq/m2. Considering the Embodied Energy (CED), the best solution is a panel composed of 56% of cork and 44% of coffee chaff (minimum CED and thermal conductivity).

Removal of mixed contaminants by Fe0-based biobarrier in flow-through columns using recycled waste materials

2009 ◽  
Vol 11 (3) ◽  
pp. 214-221 ◽  
Author(s):  
Jai-Young Lee ◽  
Sun Young Youm ◽  
Sang-Il Choi ◽  
Byung-Taek Oh
Keyword(s):  
Waste Materials ◽  
Mixed Contaminants ◽  
Flow Through ◽  
Recycled Waste

Evaluation Indexes System for Assessing Road Construction with Recycled Waste Materials to Achieve Better Environmental Impacts

2011 ◽  
Vol 250-253 ◽  
pp. 1001-1006 ◽  
Author(s):  
De Zhen Chen ◽  
Cui Jie Geng ◽  
Wen Zhou Sun
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Waste Disposal ◽  
Large Scale ◽  
Construction Material ◽  
Bottom Ash ◽  
Road Construction ◽  
Waste Materials ◽  
Evaluation Indexes ◽  
Recycled Waste

Evaluation indexes system has been put forward in this paper for quantifying thesystematical energy consumption, resources consumption, total emissions’ change and waste disposal capacity in road construction with recycled waste materials involved. With help of this evaluation indexes system, the contributions to environmental improvement caused by recycling waste materials in road construction can be quantified through calculating savings on environmental impact potentials, savings on energy consumption, on virgin materials’ consumption and waste disposal capacity provided by road construction. Based on the construction project of a road section numbered No.20 EWK0+400 ~ EWK0+600 of North highway to Shanghai Pudong international airport, which was the first trial project of using several kinds of recycled waste materials including bottom ash from incinerators to replace commonly used materials such as gravel in large scale in road pavement, the results of the four indexes, namely, savings on energy consumption and virgin materials’ consumption, environmental impact potentials as well as waste disposal capacity were obtained. It was found out that with multi recycled waste materials replacing part of the common construction material, systematical energy consumption can be reduced by 30%, a large amount of virgin resource consumption can be avoid and road construction also provides a remarkable large “dumping site” for solid wastes; while at the same time environmental impact potentials were saved for most impact categories except for increase in Ecotoxicity, water chronic, which was caused by heavy metals’ leaching and can be prevented by pre-treatment. Those results are useful for guiding the utilization of recycled waste materials, as well as for developing new technology process and advanced materials in road construction.

MEMS Design Education by Case Studies

2001 ◽  
Author(s):  
Ryszard J. Pryputniewicz
Keyword(s):  
Computer Science ◽  
Case Studies ◽  
Design Education ◽  
Laboratory Experiments ◽  
Microelectromechanical Systems ◽  
Academic Development ◽  
Academic Education ◽  
Graduate Courses ◽  
Mems Technology ◽  
Student Projects

Abstract Advances in microelectromechanical systems (MEMS) technology are based on understanding of the issues involved in design, analysis, fabrication, characterization, and use of the finished products. Although this understanding is being developed “on the job” to satisfy immediate needs of rapid advances in the emerging MEMS technology, there is also growing demand for “academic” education in MEMS. Whether on-the-job or academic, development of the required understanding is no easy task because the MEMS field is very multidisciplinary. Those involved should be able to work simultaneously with topics relating to physics, chemistry, materials, computer science, engineering, as well as other relevant disciplines. To facilitate preparation of future engineers for work with MEMS, we have developed undergraduate and graduate courses addressing some of the crucial issues relating to MEMS. These courses are based on case studies that we have developed in our laboratories. The courses include lectures, laboratory experiments, student projects, and presentations. This paper describes selected case studies used in our courses as they relate to design education with MEMS.

scholarly journals Application of Recycled Waste Materials for Highway Construction: Prospect and Challenges

2019 ◽  
Vol 1378 ◽  
pp. 022058
Author(s):  
D.D. Adegoke ◽  
T. O. Ogundairo ◽  
D.O Olukanni ◽  
O.M. Olofinnade
Keyword(s):  
Highway Construction ◽  
Waste Materials ◽  
Recycled Waste

Case studies on genetically modified organisms (GMOs): Potential risk scenarios and associated health indicators

2018 ◽  
Vol 117 ◽  
pp. 36-65 ◽  
Author(s):  
Barbara de Santis ◽  
Norbert Stockhofe ◽  
Jean-Michel Wal ◽  
Eefke Weesendorp ◽  
Jean-Paul Lallès ◽  
...  
Keyword(s):  
Case Studies ◽  
Potential Risk ◽  
Genetically Modified Organisms ◽  
Genetically Modified ◽  
Health Indicators ◽  
Risk Scenarios
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