Main Title |
Laser induced photochemical oxidative destruction of toxic organics in leachates and groundwaters. |
CORP Author |
Environmental Protection Agency, Washington, DC. |
Publisher |
Risk Reduction Engineering Laboratory, |
Year Published |
1993 |
Report Number |
EPA/540-SR-92-080 |
Stock Number |
PB2005-110575 |
OCLC Number |
28162718 |
Subjects |
Groundwater--Purification--Ultraviolet radiation ;
Groundwater--Purification--Oxidation ;
Water--Purification--Organic compounds removal ;
Laser photochemistry ;
Leaching ;
Organic compounds--Oxidation ;
Water, Underground--Purification--Ultraviolet radiation ;
Water, Underground--Purification--Oxidation
|
Additional Subjects |
Water pollution control ;
Organic compounds ;
Oxidation ;
Photochemical reactions ;
Technology utilization ;
Hydrogen peroxide ;
Toxic substances ;
Ground water ;
Ultraviolet radiation ;
Degradation ;
Leaching ;
Waste disposal ;
Hazardous materials ;
Chemical reactions ;
Superfund Innovative Technology Evaluation Program ;
Laser induced reactions
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
TD460.L37 1993 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
EJBD |
EPA 540-SR-92-080 |
c.1 |
Headquarters Library/Washington,DC |
06/02/2014 |
ELBD ARCHIVE |
EPA 540-SR-92-080 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 540-SR-92-080 |
|
AWBERC Library/Cincinnati,OH |
09/12/1998 |
EMBD |
EPA/540/SR-92/080 |
3 copies |
NRMRL/GWERD Library/Ada,OK |
12/28/2001 |
NTIS |
PB2005-110575 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
5 pages : illustrations ; 28 cm. |
Abstract |
Energy and Environmental Engineering, Inc., East Cambridge Massachusetts, developed a photochemical treatment process that oxidizes organic compounds in wastewater. The process features an Excimer laser, which produces energy sufficient to fragment the bonds of the organic contaminants without altering the water molecules. The developer envisions the process as a final treatment step and claims applicability to groundwater and industrial wastewater containing organics, such as halogenated aliphatics, substitued aromatics, and organic acids. Contaminated wastewater is pumped through a filter unit to remove suspended particles. The filtrate is mixed with stoichiometric quantities of hydrogen peroxide. This mixture is fed to the photochemical reactor and irradiated. Energy from the laser is absorbed by the organic compound(s) and the oxidant, making both species reactive. The reactor effluent is directed to a vented storage tank, where the carbon dioxide product is vented. Base may be added to the storage tank to neutralize any acids formed. Reaction products are carbon dioxide, water, and the appropriate halogen acid. Reaction kinetics depend on contaminant concentration, peroxide concentration, irradiation dose, and irradiation frequency. Studies of the process used the existing bench-scale system, which treats solutions containing up to approximately 100 ppm of total organic carbon at a rate of 1 gallon per minute. Destruction efficiencies between 88% and 99% have been obtained for benzene, benzidine, chlorobenzene, chlorophenol, phenol, and dichloroethene. Preliminary cost evaluation shows that the process is competitive compared to other UV oxidation processes and carbon adsorption. |
Notes |
At head of title: SITE : Superfund Innovative Technology Evaluation. At head of title: Emerging technology summary. "February 1993." "EPA/540-SR-92-080." |
Place Published |
Cincinnati, OH |
Supplementary Notes |
See also Main Report, PB93-131431. |
Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
Corporate Au Added Ent |
Risk Reduction Engineering Laboratory (U.S.); Center for Environmental Research Information. |
Title Ser Add Ent |
Emerging technology bulletin. |
Alternate Title |
EPA/540/SR-92/080 |
PUB Date Free Form |
1993 |
Series Title Traced |
Emerging technology bulletin. |
Series Title Untraced |
Emerging technology bulletin. |
Ti Tra Differently |
EPA/540/SR-92/080 |
Category Codes |
68D; 68C; 99E; 99F |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
100/00 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
OCLC/T |
Control Number |
029901800 |
OCLC Time Stamp |
20160419142541 |
Language |
eng |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
01650cam 2200433Ia 45020 |