Nordic experiences of soil and groundwater in situ remediation. Presented in Tallinn, 29.2.2012 on "Contaminated Sites Remediation in Estonia" seminar.

1. Nordic experiences of soil and
groundwater in situ remediation
Jarno Laitinen
M.Sc. Tech., M.Sc. Econ.
Vice President
Doranova Oy

2. Company introduction

3. Coming together is a beginning,
keeping together is progress,
working together is success.
- Henry Ford

4. Company information (1)
• Founded in 1995
• Offices
– Tampere (Doranova Oy)
– Tallinn (Doranova Baltic Oü)
– Riga (Doranova Latvija Sia)
– London (Doranova Ltd)
• Personnel
– Internationally over 20 persons
– Awarded and recognized professionals
• Working for quality
– ISO 9000/2000, ISO 14001/2004
Company information 25.2.2012 - jLa - 4 (39)

5. Company information (2)
• Operates on
environment and energy
– Contaminated sites
– Water and waste management
– Renewable energy
• Providing services for
– Research and design
– Product sales
– Project execution
– Operation and maintenance
Company information 25.2.2012 - jLa - 5 (39)

6. Key personnel for contaminated sites
Margus Nõlvak Perttu Mattila Jarno Laitinen
Tegevjuht, Division manager Vice President,
Juhatuse liige Contaminated Sites Member of the board
Doranova Balti Oü Doranova Oy Doranova Oy,
Doranova Balti Oü
+372 504 1010 +358 400 771 981 +358 40 549 1341
Margus.nolvak@ perttu.mattila@ jarno.laitinen@
doranova.com doranova.fi doranova.fi
Company information 25.2.2012 - jLa - 6 (39)

7. In situ remediation

8. Content of presentation
i. Applicability of in situ remediation techniques
– When to consider in situ?
– What are the limitations?
ii. Commercially available in situ technologies
– What technologies are widely applied?
iii. Case references from Nordic in situ remediation
– in situ bioremediation of chlorinated ethenes
– in situ bioremediation of creosote (PAH)
– in situ chemical oxidation of petroleum hydrocarbons
– Different in situ and on-site projects
Content 25.2.2012 - jLa - 8 (44)

9. Applicability of in situ (1)
i. When to consider in situ?
– Are the contaminants suitable for in situ?
– Oil, Petroleum, PAH, BTEX, MTBE
– Chlorinated hydrocarbons (chlorophenol, solvents)
– Inorganics, nitrogen, metals, ..
– Is the remediation site suitable for in situ?
– Area, depth, structures, utilization
– Soil type and permeability
– Soil moisture and groundwater
– Are the project economics favourable for in situ?
– Budget
– Schedule
Applicability of in situ remediation 25.2.2012 - jLa - 9 (44)

10. Applicability of in situ (2)
Applicability of in situ remediation 25.2.2012 - jLa - 10 (44)

11. Bacteria are the dark matter of the
biological world, with 4 million
mostly unknown species
in a ton of soil
- Edward O. Wilson

12. Monitored Natural Attenuation
Remediation techniques 25.2.2012 - jLa - 12 (44)

13. In Situ Bioremediation
Remediation techniques 25.2.2012 - jLa - 13 (44)

14. In Situ Chemical Oxidation (ISCO)
Remediation techniques 25.2.2012 - jLa - 14 (44)

15. LNAPL Pumping / Pump and Treat
Remediation techniques 25.2.2012 - jLa - 15 (44)

16. Soil Washing and Separation
Remediation techniques 25.2.2012 - jLa - 16 (44)

17. Land Farming / Composting
Remediation techniques 25.2.2012 - jLa - 17 (44)

18. Phytoremediation
Remediation techniques 25.2.2012 - jLa - 18 (44)

19. In theory there is no difference
between theory and practice.
In practice there is.
- Yogi Berra

20. In situ bioremediation of TCE (1)
Project: Old metal manufacturing plant
• Between 1962 - 1985 PCE and TCE
were used to wash grease from
metal items before painting.
• PCE and TCE are toxic,
carcinogenic and
environmentally harmful
• In 1995 the emission was first
found during property due
diligence.
• Contaminated area is over 80 ha.
Nordic in situ case references 25.2.2012 - jLa - 20 (20)

21. In situ bioremediation of TCE (2)
Total area over 80 ha
Nordic in situ case references 25.2.2012 - jLa - 21 (20)

22. In situ bioremediation of TCE (3)
Process: anaerobic microbial dehalogenation
Benefits of AMD:
– Does not disturb business
– For source and plume
– Total mineralisation
– Natural microbes
– Easy to proof
– Cost efficient
Nordic in situ case references 25.2.2012 - jLa - 22 (20)

23. In situ bioremediation of TCE (4)
Example of a treatment unit
located inside the factory
Nordic in situ case references 25.2.2012 - jLa - 23 (20)

24. In situ bioremediation of TCE (5)
TCE concentration
levels BEFORE
remediation
in year 2009
TCE concentration
levels AFTER
2,5 years of
remediation
in year 2011
Nordic in situ case references 25.2.2012 - jLa - 24 (20)

25. In situ bioremediation of TCE (6)
Nordic in situ case references 25.2.2012 - jLa - 25 (20)

26. In situ bioremediation of creosote (1)
Project: Old creosote impregnation site
• Between 1902…1920 - 1982
creosote was used to impregnate
railroad sleepers
• Creosote is toxic, carcinogenic
and persistent
• In 1959 first phenol emission was
first found
• In the final years creosote was
still used around 1300 t/a
• The contamination has spread to
the municipal GW extraction
plant.
Nordic in situ case references 25.2.2012 - jLa - 26 (20)

27. In situ bioremediation of creosote (2)
Nordic in situ case references 25.2.2012 - jLa - 27 (20)

28. In situ bioremediation of creosote (3)
Hydrogeological pre-study
Nordic in situ case references 25.2.2012 - jLa - 28 (20)

29. In situ bioremediation of creosote (4)
Process: aerobic biowall
Benefits of Biowall
– Fast deployment
– For plume control
– Total mineralisation
– Natural microbes
– Easy to install
– Easy to monitor
– Cost efficient
Nordic in situ case references 25.2.2012 - jLa - 29 (39)

30. In situ bioremediation of creosote (5)
Nordic in situ case references 25.2.2012 - jLa - 30 (20)

31. In situ chemical oxidation of oil / diesel
Project: Old woodmill and window factory
Nordic in situ case references 25.2.2012 - jLa - 31 (20)

32. In situ chemical oxidation of oil / diesel
Pre-project
laboratory study
Nordic in situ case references 25.2.2012 - jLa - 32 (20)

33. In situ chemical oxidation of oil / diesel
Nordic in situ case references 25.2.2012 - jLa - 33 (20)

34. In situ chemical oxidation of oil / diesel
Summary of results
Nordic in situ case references 25.2.2012 - jLa - 34 (20)

35. In situ bioremediation of MTBE
Project: Old petroleum station leaks under a house
Nordic in situ case references 25.2.2012 - jLa - 35 (20)

36. In situ chemical oxidation of oil / diesel
Project: Old carpenter factory, new office center
Nordic in situ case references 25.2.2012 - jLa - 36 (20)

37. On-site pump & treat of 1,2-DCA and VC
Project: Chemicals production and refining
Nordic in situ case references 25.2.2012 - jLa - 37 (20)

38. On site SVE of VOC’s and P&T of PAH’s
Project: Old gas plant
Nordic in situ case references 25.2.2012 - jLa - 38 (39)

39. Thank you for your interest
For more information:
E-mail: jarno.laitinen@doranova.fi
Phone: +358 44 355 8236
Internet: www.doranova.fi