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Leachate apportionment and leachate treatment in sanitary landfillings

Leachate apportionment and leachate treatment in sanitary landfillings


• tento článok sa nachádza v kategórii: PODZEMNÁ VODA / rok 1995 [ ročník I, číslo 2 ]
António Fiúza

ABSTRACT: Leachates are the main environmental problem originated by landfillings and the estimate of the expected production flowrates is an important factor in the design and project, both during operational period and after closure. A conceptual tool for such estimations is transient or unsteady water mass balances. The several inputs and output to and from the system are described and methods for accounting each of them are indicated. However, it is not only necessary to preview the quantity but also the quality. Thus, the biological and chemical mechanisms of leachates production are analysed. Their understanding entitles possible strategies for process control. Finally, leachates cannot anymore be discarded on the environment, percolating through the soil, for natural attenuation. For this reason, the principal methods of treatment by piping the leachates, by biological, physical or chemical methods are shortly described and analysed.

odkaz na článok:
Fiúza, A. 1995: Leachate apportionment and leachate treatment in sanitary landfillings.- Podzemná voda ISSN 1335-1052, I, 2/1995, 28-40.

jazyk článku: angličtina

kľúčové slová: -

key words: Acetic phase, Aerobic treatment, Anaerobic Treatments, Ammonia stripping, Carbon Adsorption, Chemical Precipitation, Evaporation, Evapotranspiration, Facultative lagoon, Field capacity, Hydrolytic phase, Leachates, Methanogenic phase, Oxidation, Precipitation, Recycling, Reverse osmosis, Run-off, Waste Waters, Water balance, Wilting point

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