| Autor: |
Nehrenheim E; Department of Public Technology, Mälardalen University, Box 883, s-721 23 Västerås, Sweden. emma.nehrenheim@mdh.se, Waara S, Johansson Westholm L |
| Jazyk: |
angličtina |
| Zdroj: |
Bioresource technology [Bioresour Technol] 2008 Mar; Vol. 99 (5), pp. 998-1005. Date of Electronic Publication: 2007 Apr 25. |
| DOI: |
10.1016/j.biortech.2007.03.006 |
| Abstrakt: |
Treatment of landfill leachate using blast furnace slag and pine bark as reactive sorbents was studied in an in situ column experiment at the Lilla Nyby landfill site in Eskilstuna, Sweden. The columns were filled with approximately 101 of each sorbent and leachate was supplied at three different flow rates during a period of 4 months. Samples of inflow and outflow were collected three times a week and were analyzed for physical and chemical parameters, including concentrations of some metals, and toxicity. It was found that pine bark removed metals more efficiently than did the blast furnace slags; that Zn was most efficiently retained in the filters and that both retention time and initial concentration played an important role in the sorption process. It was also observed that the pine bark column did not release COD. No toxicity of the untreated or the treated leachate was found with the test organisms and test responses used. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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Full Text from ScienceDirect