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Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
Aamir and atique 032411
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Aamir and atique 032411

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  1. Submitted by:   Atique Ahmed ID # 989056528 Aamir khan ID # 500391813 Date: March 25, 2011 Redevelopment of Brownfields and its Remediation Methodology Submitted to Professor: Dr. Li He   Department of Civil Engineering
  2. <ul><li>Introduction </li></ul><ul><li>Factors in Brownfield Development </li></ul><ul><li>Benefits of Brownfield Development </li></ul><ul><li>The Challenge of Brownfields </li></ul><ul><li>Development Process </li></ul><ul><li>Cleanup Planning and Execution </li></ul><ul><li>Case Studies </li></ul><ul><li>Conclusion </li></ul>Outline
  3. Introduction <ul><li>What is Brownfield? </li></ul><ul><li>“ Brownfields&quot; are abandoned, underused lands come from redundant industrial and commercial sites, past rail way yards, institutions, hospital, housing, gas stations, riverbanks etc where expansion or redevelopment is complicated by the presence of hazardous substance, pollutant, or contaminants. </li></ul><ul><li>There are about 30,000 Brownfield sites in Canada. </li></ul>
  4. Why is Brownfield cleanup and development important? <ul><li>Revitalization of neighborhoods and employment areas </li></ul><ul><li>Utilization of existing sewer, water and road </li></ul><ul><li>infrastructure to reduce the urban development costs </li></ul><ul><li>Increased housing opportunities </li></ul><ul><li>Improved environmental quality and human health </li></ul><ul><li>Economic growth </li></ul><ul><li>Retention and creation of local jobs </li></ul><ul><li>Increased property values and property tax revenues </li></ul><ul><li>Economic Impact of Brownfield Development </li></ul><ul><li>Every $1 spent on Brownfield development generates approximately $3.80 in total economic output. </li></ul>Introduction
  5. Factors of Brownfield development Who is affected and in what ways? <ul><li>The owner of the property by the environmental </li></ul><ul><li>liabilities. </li></ul><ul><li>Neighboring property values by the existence of </li></ul><ul><li>contamination. </li></ul><ul><li>The community is negatively affected by urban </li></ul><ul><li>blight. </li></ul><ul><li>The city suffers a loss of tax revenues. </li></ul><ul><li>Young People from getting new jobs. </li></ul><ul><li>The lender’s loan to the company is at risk. </li></ul><ul><li>Suppliers to the company may suffer losses as a </li></ul><ul><li>result of bankruptcy. </li></ul><ul><li>All tax payers is going to have to cleanup of mess </li></ul><ul><li>left by polluter. </li></ul>
  6. Factors of Brownfield development What if Brownfield Development is not done? <ul><li>The negative effects are: </li></ul><ul><li>urban blight </li></ul><ul><li>community deterioration </li></ul><ul><li>flight of workers </li></ul><ul><li>jobs to the suburbs </li></ul>
  7. Benefits of Brownfield Development <ul><li>1. Economic Benefits: </li></ul><ul><li>Convey public and private assets and capital to productive uses. </li></ul><ul><li>Refresh unused lands and adjacent areas to productive uses. </li></ul><ul><li>Provide an engine for economic revival by drawing businesses to the area. </li></ul><ul><li>Increase the tax base for all three levels of government. </li></ul><ul><li>Creates confidence in environmental risk management. </li></ul><ul><li>Offers export for Canadian clean-up technologies. </li></ul>The three benefits are:
  8. Benefits of Brownfield Development <ul><li>2. Environmental Benefits </li></ul><ul><li>Alleviates development pressures on Greenfield sites. </li></ul><ul><li>Produces urban restoration for concerned urban areas. </li></ul><ul><li>Progresses the quality of the environment by acting as a catalyst for environmental assessment and remediation. </li></ul><ul><li>3. Social Benefits </li></ul><ul><li>Generates employment in the expert areas of remediation. </li></ul><ul><li>Revives small and rural communities that can be besieged by the pressure of even a single considerable Brownfield. </li></ul>
  9. Barrier to Brownfield Development <ul><li>Three primary barriers are : </li></ul><ul><li>Vague liabilities and risk assessment regimes </li></ul><ul><li>Lack of resources to funding Brownfield development </li></ul><ul><li>Poor stakeholders attentiveness to Brownfield development </li></ul>
  10. The Challenge of Brownfields <ul><li>Brownfields are lands that may have been contaminated from past use and are currently abandoned or underutilized. </li></ul><ul><li>Usually, but not exclusively, former industrial or commercial properties that may be underutilized, derelict, or vacant. </li></ul><ul><li>Key Challenge </li></ul><ul><ul><li>Encourage the revitalization of Brownfield properties and surrounding communities while protecting health and the environment </li></ul></ul>
  11. Brownfield in Ontario: Where are they found <ul><li>Brownfields exist in every municipality, big and small, urban and rural </li></ul><ul><li>Common in historic urban cores, waterfronts, downtown main streets, railway corridors, service junctions </li></ul><ul><li>In smaller communities, most common Brownfield sites: </li></ul><ul><ul><li>abandoned service stations </li></ul></ul><ul><ul><li>former industrial sites </li></ul></ul><ul><ul><li>landfills </li></ul></ul>
  12. <ul><li>Environmental Site Assessments </li></ul><ul><li>Environmental Site Assessment is one of </li></ul><ul><li>the key for reducing cleanup costs. </li></ul><ul><li>This includes: </li></ul><ul><li>Phase I ESA : records review and site visit. </li></ul><ul><li>Phase II ESA: sampling, testing and reporting </li></ul><ul><li>after the report of Phase I. </li></ul>Brownfield Development Process
  13. Development Process <ul><ul><li>RULES AND REGULATION </li></ul></ul><ul><ul><li>When Budget is allocation; the health and safety of People and environment be considered. </li></ul></ul><ul><ul><li>In Canada and USA help and assistance is available. </li></ul></ul><ul><ul><li>In Canada Ontario Government had initiated rules and regulation for Brownfield Redevelopment. </li></ul></ul>
  14. Development Process <ul><ul><li>The common contaminates in all Brownfields sites are: </li></ul></ul><ul><ul><li>Soil, Liquid and Air </li></ul></ul><ul><ul><li>Primarily investigation discovers which constituents is contaminated. </li></ul></ul><ul><ul><li>Soil remediation technologies are available for each constituents whether it is, Soil, Liquid or Air. </li></ul></ul><ul><ul><li>The Primary Goal for Remediation Technology is to reduce COST. </li></ul></ul>
  15. Following common techniques are being used for brownfields remediation but not limited: <ul><li>In situ bioremediation </li></ul><ul><li>Ex situ bioremediation </li></ul>DEVELOPMENT PRCESS …..Cont’d
  16. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>Soil Vapor Extraction – SVE reduces concentration of </li></ul><ul><li>volatile constituents in petroleum products adsorbed </li></ul><ul><li>to soils. In this technology, a vacuum is applied </li></ul><ul><li>through wells near the source of contamination in </li></ul><ul><li>the soil. </li></ul><ul><li>Air Sparging : reduces concentrations of volatile </li></ul><ul><li>constituents in petroleum products. (GW) </li></ul>
  17. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>Biosparging – uses indigenous microorganisms </li></ul><ul><li>to biodegrade organic constituents in the saturated </li></ul><ul><li>zone, if needed air (for oxygen) and nutrients are </li></ul><ul><li>injected into the saturated zone to increase the </li></ul><ul><li>biological activities of the microorganisms. </li></ul>
  18. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>Electrical Resistance Heating (ERH) </li></ul><ul><ul><li>Employs passing an electrical current through the </li></ul></ul><ul><ul><li>soil or groundwater by use of electrodes placed into </li></ul></ul><ul><ul><li>the ground. The natural resistance of soil causes </li></ul></ul><ul><ul><li>heating of the subsurface soil to approximately 100 </li></ul></ul><ul><ul><li>Degree Celsius and in turn “Evaporates” or “Boils off” the volatile constituents of the contaminated </li></ul></ul><ul><ul><li>soil into the Atmosphere . (Ex. gasoline & diesel) </li></ul></ul>
  19. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>In Situ Chemical Oxidation (ISCO) </li></ul><ul><ul><li>ISCO reduces concentrations of volatile constituents adsorbed to soils in the saturated zone. ISCO involves the introduction of a chemical oxidant into </li></ul></ul><ul><ul><li>the subsurface for the purpose of transforming ground water or soil contaminants into less harmful </li></ul></ul><ul><ul><li>chemical species. </li></ul></ul>
  20. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>Groundwater Bioremediation </li></ul><ul><ul><li>Groundwater bioremediation is a technology that </li></ul></ul><ul><ul><li>encourages growth and reproduction of indigenous microorganisms to enhance biodegrading of organic constituents in the contaminate soil groundwater. </li></ul></ul>
  21. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>Bioventing </li></ul><ul><ul><li>Bioventing remediation technology uses indigenous microorganisms (bacteria) to biodegrade organic constituents adsorbed to soils in the unsaturated zone. In Bioventing, the activity of the indigenous bacteria is enhanced by inducing air (or oxygen) flow into the unsaturated zone (using extraction or injection wells) and, if necessary, by adding nutrients). (For soil) </li></ul></ul>
  22. DEVELOPMENT PROCESS – Cont’d…. <ul><li>In Situ Bioremediation: </li></ul><ul><li>Multi-Phase Extraction (MPE) </li></ul><ul><ul><li>MPE is a technology that uses pumps to remove various combinations of contaminated groundwater, separate-phase petroleum product, and hydrocarbon vapor from the subsurface. Extracted liquids and vapor are treated and collected for disposal, or re-injected to the subsurface. Multi-Phase Extraction also allows for dewatering the saturated zone, exposing the previously saturated zone to airflow from Soil Vapor Extraction (SVE). (For GW) </li></ul></ul>
  23. DEVELOPMENT PROCESS – Cont’d…. <ul><li>Ex Situ Bioremediation: </li></ul><ul><ul><li>For Ex situ following techniques are used: </li></ul></ul><ul><ul><li>Land farming </li></ul></ul><ul><ul><li>Bio-pile/Compositing </li></ul></ul><ul><ul><li>Bioreactors </li></ul></ul><ul><ul><li>These technologies are available and differ to different Brownfield remediation. </li></ul></ul>
  24. CLEANUP PLANING AND EXECUATION <ul><li>Types of Cleanup Brownfields </li></ul><ul><li>Abandoned factories </li></ul><ul><li>No Owner Abandoned Properties </li></ul><ul><li>Private owned abandoned properties </li></ul><ul><li>Dumped sites </li></ul><ul><li>Abandoned Gas Station Sites </li></ul><ul><li>Contaminated sites </li></ul><ul><li>Abandoned Vehicles Junk Yards </li></ul>
  25. CASE STUDIES <ul><li>2 Case Studies were performed: </li></ul><ul><ul><li>Case Study - One </li></ul></ul><ul><ul><li>Brownfield Site : </li></ul></ul><ul><ul><li>SPENCER CREEK VILLAGE </li></ul></ul><ul><ul><li>50 Hatt Street, Dundas (Hamilton), Ontario. </li></ul></ul>
  26. CASE STUDIES <ul><li>Description of Case Studies -One </li></ul><ul><ul><li>Site area 4.5 hectares (11.0 acres) </li></ul></ul><ul><ul><li>Developer : </li></ul></ul><ul><ul><li>Urban Horse Developments </li></ul></ul><ul><ul><li>Brownfield Process: </li></ul></ul><ul><ul><li>Brownfield Contractor </li></ul></ul><ul><ul><li>Greenwich-Mohawk Brownfield Contractor </li></ul></ul><ul><ul><li>Cost: $2.4Millions </li></ul></ul>
  27. CASE STUDIES <ul><ul><li>Case Study - Two </li></ul></ul><ul><ul><li>Brownfield Site: </li></ul></ul><ul><ul><li>The Hamilton Beaches Housing Project </li></ul></ul><ul><ul><li>Hamilton, Ontario </li></ul></ul><ul><ul><li>440 Beach boulevard </li></ul></ul>
  28. CASE STUDIES <ul><li>Description of Case Study -Two </li></ul><ul><ul><li>Area: 1.9 hectares (4.7 acres) </li></ul></ul><ul><ul><li>Developer : </li></ul></ul><ul><ul><li>Midevco Group of Companies </li></ul></ul><ul><ul><li>Brownfield Process: </li></ul></ul><ul><ul><li>Brownfield Contractor </li></ul></ul><ul><ul><li>AIM Environmental Group </li></ul></ul><ul><ul><li>Cost: $1.3Million </li></ul></ul>
  29. CONCLUSION There are many incentives concerning converting brownfields to redevelopment. These are some of those: <ul><li>Social Stimulus would be enhanced </li></ul><ul><li>Economic Stimulus would be increased </li></ul><ul><li>Community Standards Stimulate </li></ul><ul><li>Tax and Revenue for Government increased </li></ul><ul><li>Infrastructure of area improved </li></ul><ul><li>Environmental Agency Stimulates </li></ul>
  30. CONCLUSION ……Cont’d <ul><li>Revitalization of neighborhoods and </li></ul><ul><ul><li>employment opportunities </li></ul></ul><ul><li>Increased housing opportunities </li></ul><ul><li>Improved environmental quality and </li></ul><ul><ul><li>human health </li></ul></ul><ul><li>Retention and creation of local jobs </li></ul>
  31. Questions? Thanks for Your Attention

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