Osorb

Osorb

Osorb is a swellable, organically-modified silica or glass capable of absorbing volatile organic compounds and other contaminants from water. The glass was discovered by Dr. Paul L. Edmiston and is trademarked by ABSMaterials, Inc.

Contents

History of discovery

Dr. Paul Edmiston of the College of Wooster in Wooster, Ohio, discovered Osorb while working on a sensor to detect trinitrotoluene. This specific glass, at the time being studied by Dr. Edmiston and an undergraduate, Colleen Burkett, exhibited a very unusual characteristic: the glass immediately swelled with the addition of neat acetone .[1][2] Dr. Edmiston continues to examine Osorb's capabilities and characteristics in a variety of field applications.

How it works

The material is extremely absorptive, but it does not absorb water. As a result, it is able to scavenge [organics], hydrocarbons, chlorinated solvents, and other contaminants and oils from water. The Osorb can then be thermally regenerated for reuse, and any absorbed chemical can be recollected.[3] There are no toxic daughter products and no solid waste removal, and in some cases, the pollutants are completely reduced to harmless salts and gases.[4] As a result, Osorb is generally more energy- and cost-efficient and more sustainable than other prevalent remediation methods.[5][6]

Absorbing the targeted compounds

Osorb is capable of capturing "a wide range of neat, dissolved, or vapor-phase organics from water."[7] The process of absorption is mechanical rather than chemical, as the molecules expand to pull virtually any uncharged, organic molecule into their matrix. At the nano-level, the flexibly-linked particles function like a sponge that can be rinsed and reused.[8] Osorb is observed to swell up to 8 times its own weight and maintains its structural integrity up to 20,000 times its weight.[9]

Recovering absorbed substances

Osorb "can be easily regenerated over 100 times. Absorbed contaminants can be removed by mild thermal treatment or solvent rinsing. Any absorbed organics can then be properly disposed of or recycled."[10] The entire cyclical process of use and reuse produces zero toxic air discharge (unlike air stripping), no toxic daughter products, and no waste that needs to be landfilled.[11][12]

Embedding glass in metals

When embedding Osorb with reactive metals, the material can catalytically dechlorinate certain halogenated contaminants. "Chlorinated solvent plumes are captured in the Osorb glass matrix and forced against a metal catalyst. The catalyst reaction reduces the organic pollutants to salts and harmless byproducts."[13]

Osorb embedded with zerovalent iron is used to remediate groundwater for in situ injections. Another version of the material embedded in palladium is used for ex situ remediation.[14]

Uses of Osorb

The central use for Osorb continues to be the remediation of "ground, surface, and municipal water."[15] ABSMaterials, Inc. currently applies Osorb to its water treatment systems, which include in situ Osorb injections, ex situ VOC-Eater units, and bioswale/bioretention systems.

Remediation of TCE, PCE, and chlorinated solvents

Osorb is in early-stage or pilot-stage commercial testing. The most common usage is the clean-up of TCE, PCE or related chlorinated solvents. The Ohio EPA conducted successful testing at a TCE plume from a demised industrial site [16] In West Lafayette, Ohio, the US EPA has included Osorb as a suggested material for this type of remediation. [17]

The treatment of produced water, flowback water and hydraulic fracturing water

The Osorb material has been funded by National Science Foundation(NSF) and US Department of Energy SBIR funds to demonstrate effectiveness in treating complex oil field waters.[18] The DOE's National Energy Technology Laboratory completed testing that "confirmed [Osorb] can remove more than 99 percent of oil and grease from water." [19] The NSF has also produced a video of the inventor, Dr. Paul Edmiston, demonstrating the effectiveness of the treatment. [20] The company has two mobile units being demonstrated at various sites where produced water is being processed. A separate business entity, Produced Water Absorbers, is conducting these pilots. [21]

References

  1. ^ http://www.the-daily-record.com/news/article/4701803
  2. ^ http://www.youtube.com/watch?v=hTOboHlcF0Q
  3. ^ http://www.absmaterials.com/osorb
  4. ^ http://www.e4s.org/Who%20We%20Are/Champions%20of%20Sustainability/Deanna%20Pickett%20-%20ABSMaterials,%20Inc.
  5. ^ http://www.dailytech.com/article.aspx?newsid=17403
  6. ^ http://www.frtr.gov/pdf/meetings/may10/presentations/edmiston-presentation.pdf
  7. ^ http://www.absmaterials.com/osorb
  8. ^ http://www.nsf.gov/news/news_videos.jsp?cntn_id=118400&media_id=68996&org=NSF
  9. ^ http://www.dailytech.com/article.aspx?newsid=17403
  10. ^ http://www.absmaterials.com/osorb
  11. ^ http://www.pollutionissues.com/Pl-Re/Pollution-Shifting.html
  12. ^ http://www.e4s.org/Who%20We%20Are/Champions%20of%20Sustainability/Deanna%20Pickett%20-%20ABSMaterials,%20Inc.
  13. ^ http://www.absmaterials.com/in-situ
  14. ^ http://www.frtr.gov/pdf/meetings/may10/presentations/edmiston-presentation.pdf
  15. ^ http://www.absmaterials.com/
  16. ^ http://nepis.epa.gov/Exe/ZyNET.exe/P1008928.txt?ZyActionD=ZyDocument&Client=EPA&Index=2006%20Thru%202010&Docs=&Query=542N10004%20or%20CLU%20or%20EPA%20or%20Aug&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=pubnumber^%22542N10004%22&QFieldYear=&QFieldMonth=&QFieldDay=&UseQField=pubnumber&IntQFieldOp=1&ExtQFieldOp=1&XmlQuery=&File=D%3A\ZYFILES\INDEX%20DATA\06THRU10\TXT\00000020\P1008928.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=10&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=4
  17. ^ http://nepis.epa.gov/Exe/ZyNET.exe/P1008928.txt?ZyActionD=ZyDocument&Client=EPA&Index=2006%20Thru%202010&Docs=&Query=542N10004%20or%20CLU%20or%20EPA%20or%20Aug&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=pubnumber^%22542N10004%22&QFieldYear=&QFieldMonth=&QFieldDay=&UseQField=pubnumber&IntQFieldOp=1&ExtQFieldOp=1&XmlQuery=&File=D%3A\ZYFILES\INDEX%20DATA\06THRU10\TXT\00000020\P1008928.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=10&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=4
  18. ^ http://www.absmaterials.com/awards
  19. ^ http://blogs.forbes.com/jeffmcmahon/2011/05/02/fracking-pollution-may-be-solved-doe-says/
  20. ^ http://www.nsf.gov/news/news_videos.jsp?cntn_id=118400&media_id=68996&org=NSF
  21. ^ http://www.pwabsorbents.com/produced-water-unit-1
  1. ^ http://www.the-daily-record.com/news/article/4701803
  2. ^ http://www.youtube.com/watch?v=hTOboHlcF0Q
  3. ^ http://www.youtube.com/watch?v=1u4fBL-qzDI
  4. ^ http://www.absmaterials.com/osorb
  5. ^ http://www.absmaterials.com/osorb
  6. ^ http://www.absmaterials.com/in-situ

Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Bobach — 1. Übernamen zu nsorb., osorb., tschech. bob, poln. bуb »Bohne«, osorb. bobak, bubak »Popanz, Gespenst« oder poln. bobak »Murmeltier«. 2. Bei dem Familiennamen Bobach kann es sich auch um eine »Verhochdeutschung« von Ortsnamen wie Bobeck… …   Wörterbuch der deutschen familiennamen

  • Bobak — 1. Übernamen zu nsorb., osorb., tschech. bob, poln. bуb »Bohne«, osorb. bobak, bubak »Popanz, Gespenst« oder poln. bobak »Murmeltier«. 2. Bei dem Familiennamen Bobach kann es sich auch um eine »Verhochdeutschung« von Ortsnamen wie Bobeck… …   Wörterbuch der deutschen familiennamen

  • Hobrack — 1. Übername zu nsorb. hobrak »Riese«, osorb. hobrak »Gernegroß«. 2. Berufsname zu osorb. (älter) hobrak »Viehpächter« …   Wörterbuch der deutschen familiennamen

  • Holan — 1. Wohnstättenname zu osorb. holan »Heidebewohner«. 2. Übername zu tschech. hol, osorb. holy »nackt, kahl« …   Wörterbuch der deutschen familiennamen

  • Klink — 1. Herkunftsname zu dem Ortsnamen Klink (Mecklenburg Vorpommern, Rheinland Pfalz, Schlesien). 2. In der Lausitz auch Wohnstättenname zu nsorb. klink »kleiner Keil«, osorb. klin »Keil, Eckstück, Keilstück« für jemanden, der auf einem keilförmigen… …   Wörterbuch der deutschen familiennamen

  • Kraska — Übername zu osorb., tschech. kraska »Schönheit«, zu osorb. kraska »Wiesenschaumkraut« oder zu poln. kraska »Mandelkrähe« …   Wörterbuch der deutschen familiennamen

  • Leska — 1. Wohnstättennamen zu osorb. lesk »Haselnussstrauch«, nsorb., osorb. leska »Haselgerte«. 2. Dem Familiennamen Leske kann auch ein Übername zu mnd. lesche, leske »Runzeln an Stirn, Händen und Füßen« zugrunde liegen. 3. Herkunftsnamen zu dem… …   Wörterbuch der deutschen familiennamen

  • Leske — 1. Wohnstättennamen zu osorb. lesk »Haselnussstrauch«, nsorb., osorb. leska »Haselgerte«. 2. Dem Familiennamen Leske kann auch ein Übername zu mnd. lesche, leske »Runzeln an Stirn, Händen und Füßen« zugrunde liegen. 3. Herkunftsnamen zu dem… …   Wörterbuch der deutschen familiennamen

  • Liesack — Übername zu nsorb., osorb. lizak »Leckermaul« oder zu nsorb., osorb. lesak »Waldbewohner« …   Wörterbuch der deutschen familiennamen

  • Perschke — Übername zu nsorb. persk, osorb. pjersk »Barsch«, osorb. auch »kleiner, unansehnlicher Mensch« …   Wörterbuch der deutschen familiennamen

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”