RENA R emediation by E nhanced N atural A ttenuation of POL Polluted - - PowerPoint PPT Presentation

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RENA R emediation by E nhanced N atural A ttenuation of POL Polluted - - PowerPoint PPT Presentation

Nov 20, 2023 374 likes •555 views

RENA R emediation by E nhanced N atural A ttenuation of POL Polluted Sites A case study - UNOCI, Ivory Coast Nicola Testa, Environmental Engineer, UNGSC, DFS FAO Rome, May 3 rd GSOP 2018 Global Symposium on Soil Pollution 1. PURPOSE 2.

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RENA

Remediation by Enhanced Natural Attenuation

  • f POL Polluted Sites

A case study - UNOCI, Ivory Coast

Nicola Testa, Environmental Engineer, UNGSC, DFS FAO – Rome, May 3rd – GSOP 2018 Global Symposium on Soil Pollution

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UNITED NATIONS | FIELD SUPPORT

  • 1. PURPOSE
  • 2. REMEDIATION PROCESS AND MATERIALS
  • 3. RESULTS
  • 4. BENEFITS
  • 5. VIDEO
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UNITED NATIONS | FIELD SUPPORT

PURPOSE

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UNITED NATIONS | FIELD SUPPORT

Peacekeeping Mission Political Mission or other

169k

authorized uniformed and civilian personnel

14.5k

Field support personnel among total authorized

36

PKMs, SPMs, other

  • ffices and missions

$8.5

billion 16/17 budget, incl. UNLB, Support Account

MINUSTAH MINURSO MINUSMA UNOCI UNMIL UNAMID UNISFA MINUSCA MONUSCO UNMISS UNMIK UNMOGIP UNIFIL UNDOF UNFICYP UNSCOL UNTSO UNSCO OSASG-Y AMISOM/UNSOS UNSOM OSESG-GL SASG Burundi UNOCA CNMC UNSMIL UNRGID UNAMA UNAMI UNRCCA UNIOGBIS UNOWAS OJSRS Note: Circles indicate size of authorized deployment; Boundaries shown and designations used on this map are only for illustrative purposes and do not imply official endorsement by the United Nations Source: UN budget reports GSC GSC RSCE Service Centre / Support Office KJSO

Where we work

DFS supports 36 peace operations (17 PKM, 19 SPM/others) in over 30 countries

UNIOGBIS

Colombia Haiti

UNMC

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UNITED NATIONS | FIELD SUPPORT

REMEDIATION PROCESS AND MATERIALS

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UNITED NATIONS | FIELD SUPPORT

Remediation Process

REMEDIATION PROCESS

  • 1. Initial contamination level: TPH in soil > 90000 ppm
  • 2. Treatment & TPH reduction: TPH in soil < 1000 ppm
  • 3. Re-vegetation

MATERIALS

  • Contaminated Soil
  • Chicken Extract
  • Surfactant / NOSAM (Natural Occurring Surface Active Material)
  • RemScan Handheld Instrument
  • XRF handheld analyser
  • Concrete Mixer
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UNITED NATIONS | FIELD SUPPORT

  • Field Handheld Tool
  • Suitable for any kind of

in-situ assessments

  • TPH. Total Petroleum Hydrocarbon.

The amount of carbon chains in an environmental media.

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Remediation Process

PRACTICAL APPROACH

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RESULTS

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Remediation Process

Samples Oil concentration (mg/kg) Analytical Method: Infrared Key Elements (mg/kg) Analytical Method: XRF Date Description TPH P S Cl K Ca Fe 8/12/2016 Clean soil 400 to 1,400 3,058 ND ND ND ND 37,517 8/12/2016 Highly contaminated soil 97,000 2,250 7,120 ND 1,887 3,744 15,568 8/12/2016 Mixed contaminated soil 22,000 to 65,000 7,828 1,149 590 6,873 1,980 26,685 8/12/2016 NOSAM 17,000 (high concentration) ND 4,01 841 340,504 ND 690 8/12/2016 Chicken extract 11,000 (with leaves) 40,810 85,33 4,662 377,98 38,241 1,425 9/12/2016 Treated soil 6,000 5,643 1,936 468 8,014 264 36,997 10/12/2016 Treated soil 2,560 ND 838 ND 3,961 138 26,362 11/12/2016 Treated soil 4,000 2,659 786 ND 2,975 ND 24,435 12/12/2016 Treated soil 500 3,169 958 322 4,600 996 24,092 13/12/2016 Treated soil 6,000 2,659 786 ND 2,975 ND 24,435 14/12/2016 Treated soil 2,400 3,169 958 322 4,600 996 24,092 15/12/2016 Treated soil 1,890 1,036 578 223 3,670 456 24,018 16/12/2016 Treated soil 3,400

RESULTS: AK CAMP LOCATION

> 90% TPH REDUCTION

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Remediation Process

RE-VEGETATION

VERY USEFUL FOR ONGOING REMEDIATION REDUCTION OF CONTAMINANT LEVELS

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UNITED NATIONS | FIELD SUPPORT

Remediation Process

Normalized difference vegetation index (NDVI)

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UNITED NATIONS | FIELD SUPPORT

BENEFITS

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UNITED NATIONS | FIELD SUPPORT

Remediation Process

▪ Effectively and efficiently remediated 1200 tons of

  • il-contaminated soil saving ~ $550/ton

▪ Established a repeatable, natural method that is appropriate for the local conditions ▪ Concurrently building the case for proactive pollution prevention BENEFITS AND LEARNING

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VIDEO

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Remediation Process

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UNITED NATIONS | FIELD SUPPORT UNITED NATIONS | FIELD SUPPORT

DFS vision on Environment We strive to deploy responsible missions that achieve maximum efficiency in their use of natural resources and operate at minimum risk to people, societies and ecosystems; contributing to a positive impact on these wherever possible. Thank you

Discussion

For more information on technical environmental issues, please contact: environmental@un.org