Removal effects of citric acid, oxalic acid and acetic acid on Cd, Pb, Cu and Zn in sewage sludge
This paper studied the effects of applying citric acid, oxalic acid and acetic acid on the removal of heavy metals Cd, Pb, Cu and Zn from sewage sludge, and the form transformation and bioavailability of these heavy metals before and after the application of tested organic acids. The results showed that the removal rates of tested heavy metals except Cu increased with increasing acid concentration and action time. Among the tested organic acids, citric acid was more effective in removing heavy metals from sewage sludge, with the removal rate of 52.0% for Pb and 74.2% for Zn after a 7-hour action, and 76.0% for Pb and 92.5% for Zn after 24-hour action. The removal rates of the heavy metals by oxalic acid and acetic acid were relatively low. The Pb and Zn removed by citric acid were mainly in stable form, resulting in a relative increase of their unstable and exchangeable forms in the sludge. Though the removal rate of Cu and Cd was lower, their exchangeable forms still had somewhat increase after the action of tested organic acids.
| Medienart: |
Artikel |
|---|
| Erscheinungsjahr: |
2008 |
|---|---|
| Erschienen: |
2008 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
|---|---|
| Enthalten in: |
Ying yong sheng tai xue bao = The journal of applied ecology - 19(2008), 3 vom: 30. März, Seite 641-6 |
| Sprache: |
Chinesisch |
|---|
| Beteiligte Personen: |
Huang, Liang [VerfasserIn] |
|---|
| Anmerkungen: |
Date Completed 31.10.2008 Date Revised 18.10.2016 published: Print Citation Status MEDLINE |
|---|
| Förderinstitution / Projekttitel: |
|
|---|
| PPN (Katalog-ID): |
NLM180020005 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM180020005 | ||
| 003 | DE-627 | ||
| 005 | 20231223154747.0 | ||
| 007 | tu | ||
| 008 | 231223s2008 xx ||||| 00| ||chi c | ||
| 028 | 5 | 2 | |a pubmed24n0600.xml |
| 035 | |a (DE-627)NLM180020005 | ||
| 035 | |a (NLM)18533538 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a chi | ||
| 100 | 1 | |a Huang, Liang |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Removal effects of citric acid, oxalic acid and acetic acid on Cd, Pb, Cu and Zn in sewage sludge |
| 264 | 1 | |c 2008 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a Date Completed 31.10.2008 | ||
| 500 | |a Date Revised 18.10.2016 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a This paper studied the effects of applying citric acid, oxalic acid and acetic acid on the removal of heavy metals Cd, Pb, Cu and Zn from sewage sludge, and the form transformation and bioavailability of these heavy metals before and after the application of tested organic acids. The results showed that the removal rates of tested heavy metals except Cu increased with increasing acid concentration and action time. Among the tested organic acids, citric acid was more effective in removing heavy metals from sewage sludge, with the removal rate of 52.0% for Pb and 74.2% for Zn after a 7-hour action, and 76.0% for Pb and 92.5% for Zn after 24-hour action. The removal rates of the heavy metals by oxalic acid and acetic acid were relatively low. The Pb and Zn removed by citric acid were mainly in stable form, resulting in a relative increase of their unstable and exchangeable forms in the sludge. Though the removal rate of Cu and Cd was lower, their exchangeable forms still had somewhat increase after the action of tested organic acids | ||
| 650 | 4 | |a English Abstract | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 7 | |a Metals, Heavy |2 NLM | |
| 650 | 7 | |a Sewage |2 NLM | |
| 650 | 7 | |a Cadmium |2 NLM | |
| 650 | 7 | |a 00BH33GNGH |2 NLM | |
| 650 | 7 | |a Citric Acid |2 NLM | |
| 650 | 7 | |a 2968PHW8QP |2 NLM | |
| 650 | 7 | |a Lead |2 NLM | |
| 650 | 7 | |a 2P299V784P |2 NLM | |
| 650 | 7 | |a Copper |2 NLM | |
| 650 | 7 | |a 789U1901C5 |2 NLM | |
| 650 | 7 | |a Oxalic Acid |2 NLM | |
| 650 | 7 | |a 9E7R5L6H31 |2 NLM | |
| 650 | 7 | |a Zinc |2 NLM | |
| 650 | 7 | |a J41CSQ7QDS |2 NLM | |
| 650 | 7 | |a Acetic Acid |2 NLM | |
| 650 | 7 | |a Q40Q9N063P |2 NLM | |
| 700 | 1 | |a Zhou, Qi-Xing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Qian-Ru |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Ying yong sheng tai xue bao = The journal of applied ecology |d 1998 |g 19(2008), 3 vom: 30. März, Seite 641-6 |w (DE-627)NLM093687095 |x 1001-9332 |7 nnns |
| 773 | 1 | 8 | |g volume:19 |g year:2008 |g number:3 |g day:30 |g month:03 |g pages:641-6 |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 19 |j 2008 |e 3 |b 30 |c 03 |h 641-6 | ||