Cleaner Production Research at the Cl P d ti R h t th University of New Orleans, USA y Presented by: Bhaskar Kura, Ph. D., P. E. Director, Maritime Environmental Resources & Information Center Professor of Civil & Environmental Engineering UNIVERSITY OF NEW ORLEANS UNIVERSITY OF NEW ORLEANS NEW ORLEANS, LA, USA Sao Paulo, May 20, 2009
Discussion Topics Discussion Topics Discussion Topics Discussion Topics � Cleaner production research goals Cleaner production research goals � Case study of maritime industry and development of resources at Case study of maritime industry and development of resources at UNO UNO UNO UNO � Student training and training of industry personnel S d Student training and training of industry personnel S d i i i i d d i i i i f i d f i d l l � S � Scalability of research concepts, resources, and results to other sectors S Scalability of research concepts, resources, and results to other sectors l bilit l bilit f f h h t t d d lt t lt t th th t t � Management / software tools to effectively transfer the benefits of � Management / software tools to effectively transfer the benefits of Management / software tools to effectively transfer the benefits of Management / software tools to effectively transfer the benefits of CP research CP research � Conclusions Conclusions
Clean Technology and Cleaner Clean Technology and Cleaner Production Research Goals Production Research Goals � Be able to rank of materials based on environmental Be able to rank of materials based on environmental performance (complements US EPA’s “environmentally performance (complements US EPA’s “environmentally p preferable purchase to reduce environmental impact”) p preferable purchase to reduce environmental impact”) p p p p ) ) � Understand best process conditions (e.g., feed, mix, pressure; Understand best process conditions (e.g., feed, mix, pressure; temp temp temp, and more) temp, and more) nd more) nd more) � Develop processes and techniques that aid in energy and Develop processes and techniques that aid in energy and eve op p ocesses eve op p ocesses d ec d ec q es q es d d e e gy e e gy d d resource conservation resource conservation � Improve productivity (efficiency) which directly reduces the I I Improve productivity (efficiency) which directly reduces the d d i i i i ( ffi i ( ffi i ) ) hi h di hi h di l l d d h h pollution burden pollution burden � Reduce life cycle impacts and life cycle costs Reduce life cycle impacts and life cycle costs
Resources Development at UNO: Resources Development at UNO: Clean Technologies Initiati e Clean Technologies Initiati e Clean Technologies Initiative Clean Technologies Initiative � Established collaborations with industries and � Established collaborations with industries and Established collaborations with industries and Established collaborations with industries and regulatory agencies to understand most critical regulatory agencies to understand most critical processes within the maritime industry processes within the maritime industry processes within the maritime industry processes within the maritime industry � Developed infrastructure to: Developed infrastructure to: � Simulate industrial processes within controlled Simulate industrial processes within controlled environment environment � Monitor productivity and product quality Monitor productivity and product quality � Monitor environmental performance Monitor environmental performance � Develop mathematical models Develop mathematical models p � Computer applications to achieve “technology Computer applications to achieve “technology transfer” transfer”
C ll b C ll b Collaborations Collaborations i i United States Environmental Agency United States Environmental Agency U it d St t U it d St t E E i i t l A t l A � � Region VI of US EPA Region VI of US EPA � State environmental regulatory agencies of State environmental regulatory agencies of � Louisiana, Texas, and the Gulf Coast States Louisiana, Texas, and the Gulf Coast States , , , , National Shipbuilding Research Program National Shipbuilding Research Program � Offi Offi Office of Naval Research Office of Naval Research f N f N l R l R h h � Naval Surface Warfare Center Carderock Naval Surface Warfare Center Carderock � Division Division Private and Navy Shipbuilding and Ship Repair Private and Navy Shipbuilding and Ship Repair v v d N vy S pb d N vy S pb d g d g d S p d S p p p � Yards Yards
Industrial Processes Being Investigated Industrial Processes Being Investigated � Processes being investigated: P P Processes being investigated: b i b i i i i i d d � Dry Abrasive Blasting Dry Abrasive Blasting � Metal Welding Metal Welding � Metal Cutting � Metal Cutting Metal Cutting Metal Cutting � Painting Painting � Air Pollutants: Air Pollutants: Particulates; Metals; Organics Particulates; Metals; Organics � Health Effects: Health Effects: Wide ranging effects including Health Effects: Health Effects: Wide ranging effects including Wide ranging effects including Wide ranging effects including cancer (e.g., chromium, nickel etc.) cancer (e.g., chromium, nickel etc.)
Resources at UNO: ETF with Process and Resources at UNO: ETF with Process and Emissions Monitoring Equipment Emissions Monitoring Equipment Emissions Monitoring Equipment Emissions Monitoring Equipment
A Case Study A Case Study A Case Study A Case Study Dry Abrasive Blasting: A Surface Dry Abrasive Blasting: A Surface g Preparation Process Preparation Process
� Surface Preparation: Surface Preparation: � removal of oil, dust, rust, mill scale, paint removal of oil, dust, rust, mill scale, paint � prepare surfaces for adhesion / coating � prepare surfaces for adhesion / coating prepare surfaces for adhesion / coating prepare surfaces for adhesion / coating
Dry Abrasive Blasting Dry Abrasive Blasting y y g g Background Information Background Information � Dry Abrasive Blasting: Dry Abrasive Blasting: y b as ve B ast y b as ve B ast g: g: � Most Effective Surface Preparation Method Most Effective Surface Preparation Method � Abrasive particles are propelled at high velocities on to the surfaces to be Abrasive particles are propelled at high velocities on to the surfaces to be cleaned with the aid of compressed air cleaned with the aid of compressed air � Old paint, rust and other surface contaminants are removed and a rough Old paint, rust and other surface contaminants are removed and a rough profile is developed for good paint adhesion profile is developed for good paint adhesion profile is developed for good paint adhesion profile is developed for good paint adhesion � Generates atmospheric particulate emissions and solid wastes (used Generates atmospheric particulate emissions and solid wastes (used- - abrasives) abrasives) � Industry Sectors Industry Sectors � Shipbuilding and Repair Shipbuilding and Repair � Automobile and Aircraft Manufacturing Automobile and Aircraft Manufacturing � Oil Exploration and Refining Oil Exploration and Refining � St � Storage Tanks and Steel Bridges St Storage Tanks and Steel Bridges T T k k d St d St l B id l B id
1. Long Venturi Nozzle 2. Abrasive Sieving 3. Air Filter & Pressure Gauge 4. Exhaust Valve 5. Abrasive Tank 6 6. Automatic Filling Valve Automatic Filling Valve 7. Abrasive Control Valve 8. Blaster's PPE 9. Antistatic Blast Hose
Environmental Impact of Dry Abrasive Blasting Abrasive Blasting Wastes from Dry Abrasive Blasting Solid / Hazardous (TCLP) / ( ) Atmospheric Emissions p • Spent Abrasive • Particulate Matter (PM) Surface Run off • Surface Contaminants • Metals and Mixing and Mixing • Other Impurities • Gaseous Pollutants (Studied) (Studied)
Parameters Influencing Performance Parameters Influencing Performance (Productivity, Consumption and Emissions) � Initial surface Initial surface � Standoff distance Standoff distance conditions conditions conditions conditions � Fan capacity (indoor � Fan capacity (indoor Fan capacity (indoor Fan capacity (indoor � Abrasive type Abrasive type blasting) blasting) � Abrasive grade � Abrasive grade Abrasive grade Abrasive grade � Wind speed (open � Wind speed (open Wind speed (open air Wind speed (open-air air air blasting) blasting) � Blast pressure Blast pressure � Worker training � Worker training Worker training Worker training � Abrasive feed rate Ab Abrasive feed rate Ab i i f f d d � Worker awareness on Worker awareness on � Final surface finish Final surface finish environmental issues environmental issues environmental issues environmental issues � Angle of abrasive jet Angle of abrasive jet � Worker weariness Worker weariness � Blast nozzle size Blast nozzle size � Ventilation conditions V V Ventilation conditions il i il i di i di i
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