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EnglishThe opportunity to use deoxycholic acid (DA), bovine bile (BB), and the residue resulting from DA extraction from BB (BBR) as nontoxic and biodegradable pollutant-mobilizing agents in the washing of (chloro)aromatic-contaminated soils was studied. They were applied in parallel to Triton X 100 and evaluated for their ability to mobilize pollutants from a contminated soil and to influence the aerobic treatment of the resulting effluents. The soil was suspended at 15% (w/v) in water or in water with 1.0% (w/v) DA, BB, BBR or TX in batch reactors shaken at 120 rpm for 24 h. The resulting effluents were treated in shaken batch reactors at 20°C for 56 days. The biogenic agents enhanced by 227÷441% the pollutant mobilizing capability of water by also sustaining the effluent aerobic bioremediation. TX enhanced the same process by about 536% but increased the soil toxicity and adversely affected the biotreatability of the resulting effluent.
| Titolo: | DEVELOPMENT OF AN INNOVATIVE SOIL-WASHING TECHNOLOGY BASED ON THE USE OF CHOLIC ACID-DERIVATIVES AS POLLUTANT-MOBILIZING AGENTS: IMPACT OF THE ADDITIVES ON SOIL DECONTAMINATION AND THE AEROBIC BIOREMEDIATION OF THE RESULTING WASTEWATERS |
| Autore/i: | BERSELLI, SARA; E. Benitez; FEDI, STEFANO; ZANNONI, DAVIDE; A. Medici; FAVA, FABIO |
| Autore/i Unibo: | |
| Anno: | 2005 |
| Titolo del libro: | E-Proceedings of the Third European Bioremediation Conference |
| Pagina iniziale: | p-150 |
| Pagina finale: | p-150 |
| Abstract: | The opportunity to use deoxycholic acid (DA), bovine bile (BB), and the residue resulting from DA extraction from BB (BBR) as nontoxic and biodegradable pollutant-mobilizing agents in the washing of (chloro)aromatic-contaminated soils was studied. They were applied in parallel to Triton X 100 and evaluated for their ability to mobilize pollutants from a contminated soil and to influence the aerobic treatment of the resulting effluents. The soil was suspended at 15% (w/v) in water or in water with 1.0% (w/v) DA, BB, BBR or TX in batch reactors shaken at 120 rpm for 24 h. The resulting effluents were treated in shaken batch reactors at 20°C for 56 days. The biogenic agents enhanced by 227÷441% the pollutant mobilizing capability of water by also sustaining the effluent aerobic bioremediation. TX enhanced the same process by about 536% but increased the soil toxicity and adversely affected the biotreatability of the resulting effluent. |
| Data prodotto definitivo in UGOV: | 11-ott-2005 |
| Appare nelle tipologie: | 4.02 Riassunto (Abstract) |
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