Liquid Sodium Ferrate and Fenton’s Reagent for Treatment of Mature Landfill Leachate
| Autor: | Luke Daly, Eyad S. Batarseh, Debra R. Reinhart |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Biochemical oxygen demand
Environmental Engineering Chemistry Chemical oxygen demand Biodegradation chemistry.chemical_compound Reagent Environmental chemistry Dissolved organic carbon Environmental Chemistry Leachate Leaching (metallurgy) Fenton's reagent General Environmental Science Civil and Structural Engineering |
| Zdroj: | Journal of Environmental Engineering. 133:1042-1050 |
| ISSN: | 1943-7870 0733-9372 |
| Popis: | As landfills mature, biodegradable matter in leachate is consumed and remaining compounds are increasingly recalcitrant. In this work, ferrate was compared to Fenton’s reagent for the purpose of removing nonbiodegradable organic compounds from mature leachate. Oxidation conditions (time, pH, and dose) were optimized to yield maximum organic removal using two leachate samples from 20- and 12-year-old solid waste cells. Results from this study demonstrated that Ferrate and Fenton’s reagent had similar optimum pH ranges (3–5), but different organic removal capacities, ranging from 54 to 79% of initial leachate organic contents. An advantage of ferrate was that it was effective over a wide pH range. Advantages associated with Fenton’s reagent include that it had higher organic removal capacity, produced more oxidized organic compounds (measured as chemical oxygen demand/dissolved organic carbon), and produced more biodegradable byproducts (measured as chemical oxygen demand/5-day biochemical oxygen demand). F... |
| Databáze: | OpenAIRE |
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