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Integrated ecological floating bed treating wastewater treatment plant effluents: effects of influent nitrogen forms and sediments
- Source :
- Environmental Science and Pollution Research. 25:18793-18801
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- In recent years, the treatment of wastewater treatment plant (WWTP) effluent has gained increasing attention. However, researches on the relationships between nitrogen forms and nitrogen removal efficiency are very limited. Based on the fact that the nitrogen forms in the WWTP effluent may vary as the season changes, the nitrogen removal efficiencies of an integrated ecological floating bed (IEFB) was studied under different influent nitrogen forms. In addition, the effects of sediments in the system were also quantified during the experiment. Results showed that the total nitrogen (TN) removal rates of the IEFB were 25.61 ± 5.72% and 60.03 ± 7.00%, respectively, when the main influent nitrogen forms are nitrate and ammonia. The sediments in the system also played vital roles in the removal processes: when the sediments were covered with a polyethylene membrane, the total nitrogen (TN) removal rate of the system dropped from 27.86 ± 5.53% to 14.78 ± 4.97%, and the total phosphorus (TP), from 58.77 ± 6.20% to 33.51 ± 25.52%.
- Subjects :
- Nitrogen
Health, Toxicology and Mutagenesis
chemistry.chemical_element
Wastewater
010501 environmental sciences
Waste Disposal, Fluid
01 natural sciences
Water Purification
Ammonia
chemistry.chemical_compound
Nitrate
Environmental Chemistry
Ecotoxicology
Total phosphorus
Effluent
0105 earth and related environmental sciences
Ecology
Phosphorus
04 agricultural and veterinary sciences
General Medicine
Pollution
Waste Disposal Facilities
chemistry
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Environmental science
Sewage treatment
Subjects
Details
- ISSN :
- 16147499 and 09441344
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Environmental Science and Pollution Research
- Accession number :
- edsair.doi.dedup.....f4ac1b7274f6db199a86c4e0d6572c56