Abstract
As an advanced oxidation process, the combination of sonolysis (US)/ozonolysis (O3) was investigated on the treatment of tannic acid (TA) and humic acid (HA). In this study, biodegradable chemicals were found by the molecular weight and GC-MS analysis method, and mineralization rate and synergetic effects were also studied. For the water samples prior to the treatment of US/O3, ratios of molecular size higher than 5000 and 2000 Da for HA and TA, detected by the ultra filtration method, were 90.25% and 89.53%, respectively. However, after 0.5 h of reacting, this ratio rapidly reduced to 3% and 4%, and the ratios of molecules for HA and TA less than 500 Da rapidly increased from 0.8% to 41% and from 0.65% to 39%, respectively. In the results of chemical oxygen demand (CODCr) and total organic carbon (TOC) reductions, the US/O3 process also showed synergetic effect by US/O3 for CODCr of HA and TA were 19% and 11%, and those for TOC of HA and TA were 0% and 1%, respectively. The major by-products of the oxidation process included formaldehyde, acetone, hydroxylamine, etc. Biological decomposable materials could be indirectly inferred by measuring the molecular weights and intermediates.
| Original language | English |
|---|---|
| Pages (from-to) | 773-780 |
| Number of pages | 8 |
| Journal | Ultrasonics Sonochemistry |
| Volume | 18 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2011 May 1 |
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Keywords
- Biodegradation
- Mineralization
- Ozonolysis
- Sonolysis
- Synergetic
- Tannin and humic acid
ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Acoustics and Ultrasonics
- Radiology Nuclear Medicine and imaging
Cite this
Enhancement in mineralization of a number of natural refractory organic compounds by the combined process of sonolysis and ozonolysis (US/O3). / Cui, Mingcan; Jang, Min; Cho, Sang Hyun; Elena, David; Khim, Jeehyeong.
In: Ultrasonics Sonochemistry, Vol. 18, No. 3, 01.05.2011, p. 773-780.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhancement in mineralization of a number of natural refractory organic compounds by the combined process of sonolysis and ozonolysis (US/O3)
AU - Cui, Mingcan
AU - Jang, Min
AU - Cho, Sang Hyun
AU - Elena, David
AU - Khim, Jeehyeong
PY - 2011/5/1
Y1 - 2011/5/1
N2 - As an advanced oxidation process, the combination of sonolysis (US)/ozonolysis (O3) was investigated on the treatment of tannic acid (TA) and humic acid (HA). In this study, biodegradable chemicals were found by the molecular weight and GC-MS analysis method, and mineralization rate and synergetic effects were also studied. For the water samples prior to the treatment of US/O3, ratios of molecular size higher than 5000 and 2000 Da for HA and TA, detected by the ultra filtration method, were 90.25% and 89.53%, respectively. However, after 0.5 h of reacting, this ratio rapidly reduced to 3% and 4%, and the ratios of molecules for HA and TA less than 500 Da rapidly increased from 0.8% to 41% and from 0.65% to 39%, respectively. In the results of chemical oxygen demand (CODCr) and total organic carbon (TOC) reductions, the US/O3 process also showed synergetic effect by US/O3 for CODCr of HA and TA were 19% and 11%, and those for TOC of HA and TA were 0% and 1%, respectively. The major by-products of the oxidation process included formaldehyde, acetone, hydroxylamine, etc. Biological decomposable materials could be indirectly inferred by measuring the molecular weights and intermediates.
AB - As an advanced oxidation process, the combination of sonolysis (US)/ozonolysis (O3) was investigated on the treatment of tannic acid (TA) and humic acid (HA). In this study, biodegradable chemicals were found by the molecular weight and GC-MS analysis method, and mineralization rate and synergetic effects were also studied. For the water samples prior to the treatment of US/O3, ratios of molecular size higher than 5000 and 2000 Da for HA and TA, detected by the ultra filtration method, were 90.25% and 89.53%, respectively. However, after 0.5 h of reacting, this ratio rapidly reduced to 3% and 4%, and the ratios of molecules for HA and TA less than 500 Da rapidly increased from 0.8% to 41% and from 0.65% to 39%, respectively. In the results of chemical oxygen demand (CODCr) and total organic carbon (TOC) reductions, the US/O3 process also showed synergetic effect by US/O3 for CODCr of HA and TA were 19% and 11%, and those for TOC of HA and TA were 0% and 1%, respectively. The major by-products of the oxidation process included formaldehyde, acetone, hydroxylamine, etc. Biological decomposable materials could be indirectly inferred by measuring the molecular weights and intermediates.
KW - Biodegradation
KW - Mineralization
KW - Ozonolysis
KW - Sonolysis
KW - Synergetic
KW - Tannin and humic acid
UR - http://www.scopus.com/inward/record.url?scp=79751527851&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79751527851&partnerID=8YFLogxK
U2 - 10.1016/j.ultsonch.2010.11.009
DO - 10.1016/j.ultsonch.2010.11.009
M3 - Article
C2 - 21147543
AN - SCOPUS:79751527851
VL - 18
SP - 773
EP - 780
JO - Ultrasonics Sonochemistry
JF - Ultrasonics Sonochemistry
SN - 1350-4177
IS - 3
ER -