Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Peter Gehringer"'
Autor:
Peter Gehringer, Thomas Haider, Helmut Eschweiler, Walter Pribil, Regina Sommer, Alexander Cabaj
Publikováno v:
Water Environment Research. 79:720-724
Gamma and electron-beam irradiation of Bacillus subtilis spores suspended in different types of water was studied to evaluate the inactivation of the spores and assess their possible use as a bioindicator for radiation processing. We found that the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0d078a99ad9e796fca8e4734d63a4ff
https://doi.org/10.2175/106143007x175889
https://doi.org/10.2175/106143007x175889
Publikováno v:
Ozone: Science & Engineering. 28:437-443
Three different Advanced Oxidation Processes (ozonation at pH 7.5, electron beam irradiation and a combination ozonation/electron beam irradiation) have been applied to study decomposition of aqueous naphthalene-1,5-disulfonic acid (1,5-NDSA) with re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6432e18f11c9159248870cd6d3e6faf0
https://doi.org/10.1080/01919510600988154
https://doi.org/10.1080/01919510600988154
Autor:
Helmut Eschweiler, Peter Gehringer
Publikováno v:
Radiation Physics and Chemistry. 65:379-386
Hydrogen peroxide, nitrous oxide and oxygen as well were added before irradiation to tap water contaminated with trace amounts of perchloroethylene (PCE) to study their impact to the existing dose rate effect recorded with radiation-induced PCE decom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1d2fcfd87d06d2c53f54ac603ca5ba8
https://doi.org/10.1016/s0969-806x(02)00338-9
https://doi.org/10.1016/s0969-806x(02)00338-9
Autor:
Helmut Eschweiler, Peter Gehringer
Publikováno v:
Radiation Physics and Chemistry. 63:735-738
Aqueous solutions of carbon tetrachloride CCl 4 applied in concentrations of 10–50 μg/l can be used for electron beam dosimetry of aqueous flow systems provided the water contains sufficient additional scavengers to scavenge more than 99% of the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0da50aad3222db32a6af8ef22f2d6d7c
https://doi.org/10.1016/s0969-806x(01)00606-5
https://doi.org/10.1016/s0969-806x(01)00606-5
Autor:
Helmut Eschweiler, Peter Gehringer
Publikováno v:
Ozone: Science & Engineering. 21:523-538
Electron beam irradiation of water is technically the easiest way to generate OH free radicals but the efficiency of the irradiation process as an advanced oxidation process (AOP) is deteriorated by reducing species formed simultaneously with the OH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94ade368b806b5c7c0446d7e7d7c6e9b
https://doi.org/10.1080/01919512.1999.10382889
https://doi.org/10.1080/01919512.1999.10382889
Publikováno v:
Radiation Physics and Chemistry. 55:317-322
The removal of atrazine from water containing humic substances by means of γ-irradiation was studied. γ-irradiation experiments were carried out under 4 different conditions: with continuous bubbling of N 2 , O 2 , N 2 O alone and N 2 O with O 2 (N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68a0936e2de47601ad995a59ad7410c6
https://doi.org/10.1016/s0969-806x(98)00332-6
https://doi.org/10.1016/s0969-806x(98)00332-6
Publikováno v:
Ozone: Science & Engineering. 19:157-168
The discoloration of a biologically pretreated wastewater stream from a molasses processing by ozonation and two advanced oxidation processes (O3/H2O2 and O3/γ-irradiation, respectively) was studied. Color removal occurred with all three processes w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::813b89bc911176d9372a53c556cd2863
https://doi.org/10.1080/01919519708547312
https://doi.org/10.1080/01919519708547312
Autor:
Helmut Eschweiler, Peter Gehringer
Publikováno v:
Water Science and Technology. 34:343-349
An advanced oxidation process (AOP) for water reclamation, particularly groundwater remediation is described. It is based on a combination of ozone and electron beam irradiation. Main pathways of the hydroxy free radical generation in such a combinat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35caf57253f8896cb2e8d0de37db58ab
https://doi.org/10.2166/wst.1996.0640
https://doi.org/10.2166/wst.1996.0640
Publikováno v:
Radiation Physics and Chemistry. 46:1075-1078
Dose rate effect and low penetration are major disadvantages of electron beam irradiation. Addition of ozone before or during irradiation may eliminate the dose rate effect as shown for the remediation of a groundwater contaminated with trace amounts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08d1e4c28cd87ede3868270edda1a460
https://doi.org/10.1016/0969-806x(95)00324-q
https://doi.org/10.1016/0969-806x(95)00324-q
Publikováno v:
Radiation Physics and Chemistry. 42:711-714
Because of nitrite hydrogenperoxide formation irradiation treatment alone is not apt for groundwater remediation with regard to utilization as drinking water. Addition of ozone to the water before irradiation eliminates the nitrite and hydrogen perox
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f620427e70f59be8b209a51e28eb2bd
https://doi.org/10.1016/0969-806x(93)90357-z
https://doi.org/10.1016/0969-806x(93)90357-z