PL EN


Preferences help
enabled [disable] Abstract
Number of results
Journal
1999 | 2 | 190-202
Article title

Biological treatment of landifill leachate by activated sludge in SBR reactors

Title variants
Languages of publication
PL
Abstracts
EN
In the study, the efficiency of landfill leachates treatment by activated sludge in anaerobic-aerobic conditions in sequencing batch reactors (SBR) was examined. The experiments were carried out in four series characterised by different hydraulic retention time in reactors (t = 12, 6, 3 and 2 days), which was obtained by increasing the volumetric change rate in a treatment cycle from 8.3 to 50%. The highest efficiency (82.9%) of organic substances removal, expressed as COD, was noted for the retention time t = 12 days, and the lowest (70.6%) for t = 2 days. The activated sludge yield coefficient was Y = 0.56 g/g COD, and the decay coefficient kd = 0.013/ d. In series 1-3 complete nitrification was observed. Concentration of ammonia nitrogen did not exceed 1 mg NNH4/ dm^3. The efficiency of total nitrogen removal in the following series varied from 83.5 to 74.7%. Nitrates concentration in the leachate increased from 4.1 to 18.7 mg NNO3 / dm^3. In series 4 ammonia nitrogen concentration in the end of the cycle was 46.4 mg NNH4/ dm^3 and the concentration of nitrates 1.4 mg NNO3 / dm^3. The efficiency of total nitrogen removal equalled 54.3%.
Publisher

Journal
Year
Issue
2
Pages
190-202
Physical description
Contributors
author
author
References
Document Type
Publication order reference
E.Klimiuk, Katedra Chemii i Technologii Wody i Siekow, Akademia Rolniczo-Techniczna, 10-957 Olsztyn-Kortowo, Poland
Identifiers
YADDA identifier
bwmeta1.element.element-from-psjc-6dbf7100-7168-3080-a613-f52ddd05af6d
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.