Environmental Applications and Implications of Nanotechnology(奈米技術的環境應用與含意)line分享列印本頁
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A. Vision & Policy

1. Mission of National Program :

To promote environmental management and monitoring in R/D labs and production sectors to ensure the development of nanotechnology is responsible and sustainable .

2. Mission of TEPA :

To determine the relationship between the latest nanotechnology and the environment, which the international community is also pursuing, and to maximize its benefits and minimize its impacts.

B. Project Organization A. Vision & Policy

1. Mission of National Program :

To promote environmental management and monitoring in R/D labs and production sectors to ensure the development of nanotechnology is responsible and sustainable .

2. Mission of TEPA :

To determine the relationship between the latest nanotechnology and the environment, which the international community is also pursuing, and to maximize its benefits and minimize its impacts.

B. Project Organization

Applications and Implications of Nanotechnology in Environment subprojects Project Overseer Dr.Roam (TEPA)? Total Budget: NT$ 26 m .(US$ 0.8 m )
Project Investigator:
1.?2003 Applications of Nanotech ( Ⅰ ) Dr. Chein (ITRI) NT$ 5.7 m .
2.?2004 Applications of Nanotech ( Ⅱ ) Dr. Chein (ITRI) NT$ 7.2 m .
3.?2005 Advanced Nanotech and Environmental Implications ?Dr. Hsu (ITRI) NT$ 1.0 m .
4.?2005 Promotion Responsible Nanotech ?Dr. Chein (ITRI) NT$ 4.2 m .
5.2005 The Analyses and Responses on Four Main International Issues Dr. Chen (Univ.) NT$ 1.4 m .
6.2005 Application of Nanotech on Oxygen Sensor Dr. Fan (Univ.) NT$ 1.4 m .
7.?2005 Application of Nano Gold Particles on Pollution Prevention ?Dr. Chang (DCB) NT$ 1.4 m .
8.2006 Nanoparticle concentration monitoring and composition analysis in atmosphere. ?Dr. Wang (Univ.) NT$ 3.9 m .
9.2007 Developing analytical tools for measuring and characterizing nanomaterials in the environment NT$ 6.2 m .
10.2007 The establishment of Environmental Nanotechnology knowledge platform NT$ 2.0 m .
11.2007 Coupled removal of environmental pollutants by functionalized one-dimensional nanomaterials and the fate of nanomaterials in the environments NT$ 1.8 m .
12.2007 Nanoscale Zero-Valent Iron for In Situ Remediation of Simulated Soil/Groundwater Pollution NT$ 2.0 m .
13.2007 Composite nanomaterials fastened tighter for remoral of pollutants in wastewater NT$ 1.9 m .
14.2008 Analytical tools for characterizing nanomaterials in the environment NT$ 3.9 m .
15.2008 The Consolidation and Spread of Environmental Nanotechnology Platform NT$ 3.5 m .
16.2008 The Risk Perceptions about Nanotechnology in Taiwan NT$ 1.8 m .
17.2008 The fate and transformation of TiO2 nanoparticles in water environment NT$ 1.7 m .
18.2008 Detection and adsorption of heavy metal and emerging pollutants using core-shell nanomaterials NT$ 1.8 m .
19.2008 The degradation of volatile organic pollutants in waste gas and water using metal modified nano-photocatalyst NT$ 1.9 m .
20.Characterization of Nanoparticles in the ambient NT$ 5.2 m .
21.The Operation of Environ. Nanotechnology Knowledge Platform NT$ 2.5 m.
22.The Risk Perception and Policy Study on Nanotechnology
NT$ 1.7 m .
23.The fate and transformation of nanoparticles in water system NT$ 1.8 m .
24.The cytotoxicity of nanoparticles in urban environment
NT$ 1.9 m .
C. Project Objectives and Contents

1.Develop an international information databank (archive). 

Develop local environmental assessment model for nanoscale TiO 2 and CNT. 

Develop nano-iron particles for CHCl 3 removal.

2. Develop 30 topics, which are related to environment and nanotechology and identified by USEPA in 2002, and determine the priority of possible environmental nanotechology projects in Taiwan. 

Evaluate exposure scenarios of two pilot nanopowder processes.

3. Complete a report to assess Taiwan 's potential to develop advanced nanotechnology and its possible environmental applications in the next 5 to 10 years.

4. Promote environmental management in R/D labs and industries. 

Develop monitoring methods for nanoparticles and carry out field sampling and surveys in different ambient sites.

5. Investigate the four global focal topics (nomenclature, methodologies for risk assessment, exchange of information on human and ecological toxicology studies, and environmental benefits of nanotechnology) and design a response plan for TEPA.

6. Develop a zirconia thin-film type oxygen sensor to enhance the closed-loop engine management system in motorcycles.

7. Develop biologically transformed nano-sized gold particles in solvents removal and denitrification systems.

D. Results: Science and Engineering Aspects

1. Nanoscale photocatalyst (TiO2) and carbon nanotube (CNT) pose more potential environmental risks at manufacturing stage than other life cycle stages.

2. Nano-iron particles, coated with palladium, could decompose CHCl3 to CH 4 in contaminated water.

3. Exposure evaluations of two small-scale plasma nanopowder manufacture processes, i.e. direct-current plasma and microwave plasma, have been conducted. The average nanoparticle number concentrations for the operating processes were 705/cm3 and 672/cm3, compared to the non-operating conditions, which were 95/cm3 and 546/cm3, respectively.

4. N95, R95, P100 and Gas filter & P100 offered high protection efficiencies for particle exposure. The total particles inhaled were 5. 1 × 106~1.2 × 107 per minute with a N95, R95, P100 or Gas filter & P 100 in the above processes. In contrast, an operator would inhale about 8.0 × 107~1.6 × 108 particles per minute wearing a gas filter, surgical mask or active carbon mask.

5. A thin-film type oxygen sensor has been developed using advanced nanotechnology. A zirconia thin film was deposited on a porous substrate using electrophoretic deposition method. After sintering at 1,400 ℃ , a gas-tight film was obtained. The specific surface area can reach as high as 50 m2 /g. Results show that the zirconia thin film process is a feasible technology to enhance the performance of oxygen sensors that may be used in motorcycles.

6. Biologically transformed nanogold could shorten the time of denitrification from 4 days to 3 days, and could also increase the denitrification rate in the anammox reaction tested system.

E. Results: Collaborative Policy Activities and Public Outreach

1. In the period of 2003-2004, 14 forums on environmental nanotechnology issues and international symposiums were held with over 2000 participants. Information exchange programs between Taiwan and other countries were also carried out with many researchers and scholars contributing their expertise regarding precautions of possible implications by nanotechnology.

2. Ambient nanoparticle measurement in residential areas and protected reservoirs and site-specific information from heavy-traffic roads and industrial parks will provide TEPA with the necessary information to prepare the next level in air quality management from the current PM 10 , PM 2.5 , PM 1.0 monitoring status to the new era of PM 0.01 assessment.

F. Significant Economical Outcomes

1. The process R&D of Zirconia thin film oxygen sensor seems to be a promising technology to the motorcycle industry. Further investment and collaboration with industrial sectors are needed .

2. Biological processes to produce nanosized gold particles and its application in biological pollution control reactors are complex and advanced. Further explorations are worthwhile.

G. Future Prospects

1. To implement the integrated Environment, Health and Safety (EHS) program.

2.To identify promising nanotechnologies which are able to tackle currently unsolvable environmental problems. 

For example, most pollution from U.S. automobiles is emitted in the first five minutes after startup.

This is because platinum and palladium-based catalysts currently used in automobile exhaust cleanup are inactive below about 200 degrees

A gold-based catalyst the size of 8 nm presents a potential solution to this cold-startup problem because it is active at room temperature. 

(Science, Oct.8, 2004, Vol.306, p.234)

H. Related Dissertations

The Monitoring and Composition Analysis of Nanoparticles

Good Governance or Grey GovernanceTaiwan EPA's Approaches in Responsible Nanotechnology 

Essential Criteria for Safe Applications of Photocatalysts in the Environment 

Governance Approaches to Nanotechnology in Taiwan- International Risk Governance Council (IRGC) Survey

Source:
Environmental Protection Administration, R.O.C.(Taiwan)
Updated:
2019-05-17
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