Phytoscreening for perchlorate: rapid analysis of tree sap

2015 ◽  
Vol 1 (2) ◽  
pp. 138-145 ◽  
Author(s):  
Matt A. Limmer ◽  
Danielle M. West ◽  
Ruipu Mu ◽  
Honglan Shi ◽  
Kim Whitlock ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Rapid Analysis ◽  
Contaminated Groundwater ◽  
Tree Sap ◽  
Minimal Environmental Impact

This study presents the first demonstration of perchlorate phytoscreening, successfully delineating areas of contaminated groundwater quickly and with minimal environmental impact.

An optimal plan for food consumption with minimal environmental impact: the case of school lunch menus

2016 ◽  
Vol 129 ◽  
pp. 704-713 ◽  
Author(s):  
Luca Benvenuti ◽  
Alberto De Santis ◽  
Fabio Santesarti ◽  
Luigino Tocca
Keyword(s):  
Environmental Impact ◽  
Food Consumption ◽  
School Lunch ◽  
Optimal Plan ◽  
Minimal Environmental Impact

A Heideggerian Analysis of Renewable Energy and The Electric Grid

2020 ◽  
Vol 17 (2) ◽  
pp. 291-315
Author(s):  
Rudy Kahsar ◽  
Keyword(s):  
Renewable Energy ◽  
Environmental Impact ◽  
Commodity Chain ◽  
Energy Technology ◽  
Electric Grid ◽  
On Demand ◽  
Positive Expression ◽  
Energy Needs ◽  
Local Sources ◽  
Minimal Environmental Impact

Renewable energy technology is often seen as a positive expression of technology, meeting energy needs with minimal environmental impact. But, by integrating nature (e.g., wind and sunlight) with the ordering of the electric grid, renewables silently convert that nature into what Martin Heidegger referred to as standing reserve—resources of the technological commodity chain to be ordered, controlled, converted, and consumed on demand. However, it may be possible to mitigate the downsides of this process through a transition to more decentralized, local sources of renewable energy operations and management that maintain awareness of the ways in which energy is generated and distributed.

Environmental Evaluation for Three Typical MSW Incineration Based on Life Cycle Assessment

2013 ◽  
Vol 850-851 ◽  
pp. 1360-1363 ◽  
Author(s):  
Jing Yi Ma ◽  
Xing Yu Chen ◽  
Wei Su
Keyword(s):  
Environmental Impact ◽  
Weight Factor ◽  
Absorption Process ◽  
Environment Impact ◽  
Environmental Implication ◽  
Environment Friendly ◽  
Environmental Evaluation ◽  
Msw Incineration ◽  
Minimal Environmental Impact ◽  
The Impact

Garbage incineration is an effective minimization and resource processing methods, but there are no comparative analysises about the environmental impact of incineration processes. To investigate the environmental impacts of three typical MSW incineration processes, we modeled scenarios, calculated energy consumed and six aspects which classified as GWP, ODP, AP, EP, POCP and DUST. The classification results showed the value of the environment impact potential respectively. The impact potential of heat recover-dry absorption processes according to normalized results in descending order is GWP>EP>DUST>AP>POCP>ODP, in contrast the rank of heat recover-wet absorption and semidry processes is GWP>EP>AP>DUST>POCP>ODP, global warming impacts is the most significant penitential factor. The rank of impact potential according to weight factor in descending order is GWP>EP>DUST>AP>ODP>POCP. Dust potential became more significant. The weight factor of Dust is almost twice as much as that of AP. This is because there is a large gap between baseline level and the target level, the solid-waste are the focus of control in these years. In environmental terms, the environmental depletion index of heat recover-dry absorption process is lowest with minimal environmental impact and the heat recover-wet absorption process is the highest with largest environmental impact. The incineration with dry absorption program is the best environment-friendly process in term of environmental impact. Utilization of waste water and reducing total amount of water entering the system can effectively reduce the environmental implication for both HW and HS processes.

scholarly journals Global mapping of cost‐effective microalgal biofuel production areas with minimal environmental impact

GCB Bioenergy ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 914-929 ◽  
Author(s):  
Diego F. Correa ◽  
Hawthorne L. Beyer ◽  
Hugh P. Possingham ◽  
Skye R. Thomas‐Hall ◽  
Peer M. Schenk
Keyword(s):  
Environmental Impact ◽  
Cost Effective ◽  
Biofuel Production ◽  
Global Mapping ◽  
Minimal Environmental Impact ◽  
Production Areas

scholarly journals Fly Ash-Based Geopolymer Building Materials for Green and Sustainable Development

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5699
Author(s):  
Rosicky Methode Kalombe ◽  
Victor Tunde Ojumu ◽  
Chuks Paul Eze ◽  
Sammy Mwasaha Nyale ◽  
John Kevern ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Compressive Strength ◽  
Fly Ash ◽  
Environmental Impact ◽  
Co2 Emissions ◽  
Building Materials ◽  
Curing Conditions ◽  
High Alkalinity ◽  
Series Of Experiments ◽  
Minimal Environmental Impact

This study reports on formulations and conditions for producing fly ash-based geopolymers with a view to showing that the compressive strength required for construction applications can be obtained without the addition of aggregates, sand, and/or cement. It was shown in a series of experiments constituting at least 73% fly ash that a compressive strength of up to 90 MPa can be obtained depending on the curing conditions. While high alkalinity resulted in stronger materials, the results showed about 40% savings in CO2 emissions without using sand and cement. Such materials are suited for construction applications with minimal environmental impact.

The Implementation of Genetic Algorithm in the Manufacturing Process of a Product for Reduced Environmental Impact: A Case Study of a Pulley Crankshaft

2015 ◽  
Vol 761 ◽  
pp. 651-655
Author(s):  
Hazwan Syafiq ◽  
Zahari Taha ◽  
Razali Muhamad
Keyword(s):  
Genetic Algorithm ◽  
Life Cycle ◽  
Environmental Impact ◽  
Manufacturing Process ◽  
Assessment Tool ◽  
Specific Product ◽  
Cad System ◽  
Use Of Resources ◽  
Minimal Environmental Impact

Life Cycle Assessment or LCA method is believed to be a good solution to improve sustainability in a manufacturing process. This method allows designers to identify opportunities to improve the environmental aspects of products at various points in their life cycle. In this paper, the implementation of LCA through the development of an Environmental Impact Assessment Tool (EIAT) is demonstrated via a case study of Volkswagen pulley crankshaft. EIAT is a tool that aids designers to improve the environmental impact in a manufacturing process by designing or producing products with minimal environmental impact and minimal use of resources, such as the material and energy. EIAT also offers the optimization of design solutions to reduce potential environmental impact of a specific product according to its design features. A pulley crankshaft was modelled in a CAD system where the form is fixed to maintain its function. Pulley crankshaft features, such as the type of material, diameter of pocket, stock thickness and diameter are the parameters that were optimized through the Genetic Algorithm encoded in EIAT. EIAT was validated with Eco-It (an established LCA tool) and with actual experiments. Results show a difference of less than 9% error between EIAT with the results produced by Eco-It and the actual experiments.

scholarly journals Inverse Molecular Design Techniques for Green Chemical Design in Integrated Biorefineries

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1569
Author(s):  
Jamie W. Y. Lee ◽  
Lik Yin Ng ◽  
Viknesh Andiappan ◽  
Nishanth G. Chemmangattuvalappil ◽  
Denny K. S. Ng
Keyword(s):  
Environmental Impact ◽  
Industrial Development ◽  
Molecular Design ◽  
Green Manufacturing ◽  
Building Blocks ◽  
Green Product ◽  
Technological Advancement ◽  
Process Route ◽  
Product And Process ◽  
Minimal Environmental Impact

Over the past decades, awareness of the increase in environmental impact due to industrial development and technological advancement has gradually increased. Green manufacturing is one of the key approaches that begin to address environmental issues. With the current global attention, methodologies to incorporate green manufacturing into the design of green products through the green process route are much needed. However, it is challenging for industries to achieve this, as there is no definite definition of green. This work presents a systematic approach that provides a clear and consistent green manufacturing definition with a measurement method in terms of both product and process. With the consistent green definitions, the developed approach designs a product that satisfies green property and other product performance properties. In addition, the developed approach synthesises the production process that fulfils green manufacturing definitions and financial considerations for the designed product. A case study on the design and production of green biofuel is solved to illustrate the efficacy of the approach. Green product design is obtained by identifying molecular building blocks that fulfil the targeted properties using an inverse molecular design technique. The goal is to design a chemical product that is environmentally friendly while fulfilling customer requirements. Moreover, a superstructural mathematical optimisation approach is used to determine optimal conversion pathways that have minimal environmental impact on the production of the identified green product. The utilisation of multi-objective optimisation allows the design of product and process to strike a good balance between operational and environmental performances.

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