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DC Field | Value | Language |
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dc.contributor.author | Boonnorat J. | |
dc.contributor.author | Boonapatcharoen N. | |
dc.contributor.author | Prachanurak P. | |
dc.contributor.author | Honda R. | |
dc.contributor.author | Phanwilai S. | |
dc.date.accessioned | 2021-04-05T03:22:06Z | - |
dc.date.available | 2021-04-05T03:22:06Z | - |
dc.date.issued | 2017 | |
dc.identifier.issn | 489697 | |
dc.identifier.other | 2-s2.0-85015699429 | |
dc.identifier.uri | https://ir.swu.ac.th/jspui/handle/123456789/13042 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015699429&doi=10.1016%2fj.scitotenv.2017.03.078&partnerID=40&md5=ba289363ebf03f53fda43c3944a2ff4e | |
dc.description.abstract | This research has assessed the removal efficiencies of toxic compounds in the high strength wastewater (the leachate and agriculture wastewater mixture) using the activated sludge (AS) and membrane bioreactor (MBR) technologies under two carbon to nitrogen (C/N) ratios (C/N 14 and 6) and two toxic compounds concentrations (8–396 μg/L and 1000 μg/L). In addition, the toxicity evaluations of the AS and MBR effluents to the aquatic environment were undertaken at five effluent dilution ratios (10, 20, 30, 50 and 70% v/v). The findings indicate that the AS treatment performance could be enhanced by the elevation of the nitrogen concentration. Specifically, the C/N 6 environment helps promote the bacterial growth, particularly heterotrophic nitrifying bacteria (HNB) and nitrifying bacteria (NB), which produce the enzymes crucial to the toxic compounds degradation. The improved biodegradation makes the effluents less toxic to the aquatic environment, as evidenced by the lower mortality rates of both experimental fish species raised in the nitrogen-elevated diluted AS effluents. On the other hand, the elevated nitrogen concentration minimally enhances the MBR treatment performance, given the fact that the MBR technology is in itself a biological treatment scheme with very high compounds removal capability. Despite its lower toxic compounds removal efficiency, the AS technology is simple, inexpensive and operationally-friendly, rendering the system more applicable to the treatment operation constrained by the financial, manpower and technological considerations. © 2017 Elsevier B.V. | |
dc.subject | Activated sludge process | |
dc.subject | Bacteria | |
dc.subject | Biodegradation | |
dc.subject | Bioreactors | |
dc.subject | Efficiency | |
dc.subject | Effluents | |
dc.subject | Nitrification | |
dc.subject | Nitrogen | |
dc.subject | Nitrogen removal | |
dc.subject | Toxicity | |
dc.subject | Activated sludge | |
dc.subject | C/N ratio | |
dc.subject | High strength wastewater | |
dc.subject | Membrane bio reactor (MBR) | |
dc.subject | Membrane bioreactor system | |
dc.subject | Membrane bioreactor technology | |
dc.subject | Nitrogen concentrations | |
dc.subject | Toxic compounds | |
dc.subject | Wastewater treatment | |
dc.subject | 4,4' isopropylidenediphenol | |
dc.subject | carbamazepine | |
dc.subject | carbon | |
dc.subject | di (ethylhexyl) phthalate | |
dc.subject | diclofenac | |
dc.subject | diethyltoluamide | |
dc.subject | nitrogen | |
dc.subject | phthalic acid | |
dc.subject | phthalic acid dibutyl ester | |
dc.subject | unclassified drug | |
dc.subject | nitrogen | |
dc.subject | activated sludge | |
dc.subject | biodegradation | |
dc.subject | bioreactor | |
dc.subject | concentration (composition) | |
dc.subject | membrane | |
dc.subject | nitrogen | |
dc.subject | toxic material | |
dc.subject | toxicity | |
dc.subject | wastewater treatment | |
dc.subject | activated sludge | |
dc.subject | adsorption | |
dc.subject | Agrobacterium | |
dc.subject | aquatic environment | |
dc.subject | Article | |
dc.subject | Bacillus | |
dc.subject | bacterial growth | |
dc.subject | biodegradation | |
dc.subject | Burkholderia | |
dc.subject | environmental impact assessment | |
dc.subject | fish | |
dc.subject | hydrophilicity | |
dc.subject | hydrophobicity | |
dc.subject | membrane reactor | |
dc.subject | microbial community | |
dc.subject | nitrifying bacterium | |
dc.subject | nonhuman | |
dc.subject | Oreochromis niloticus | |
dc.subject | population abundance | |
dc.subject | Pseudomonas | |
dc.subject | Rhodopseudomonas | |
dc.subject | species diversity | |
dc.subject | Sphingomonas | |
dc.subject | toxicity testing | |
dc.subject | waste component removal | |
dc.subject | waste water management | |
dc.subject | water pollution | |
dc.subject | animal | |
dc.subject | artificial membrane | |
dc.subject | bioreactor | |
dc.subject | chemistry | |
dc.subject | microbiology | |
dc.subject | sewage | |
dc.subject | toxicity | |
dc.subject | waste water | |
dc.subject | Bacteria (microorganisms) | |
dc.subject | Animals | |
dc.subject | Bioreactors | |
dc.subject | Carbon | |
dc.subject | Fishes | |
dc.subject | Membranes, Artificial | |
dc.subject | Nitrogen | |
dc.subject | Sewage | |
dc.subject | Toxicity Tests | |
dc.subject | Waste Disposal, Fluid | |
dc.subject | Waste Water | |
dc.title | Toxic compounds biodegradation and toxicity of high strength wastewater treated under elevated nitrogen concentration in the activated sludge and membrane bioreactor systems | |
dc.type | Article | |
dc.rights.holder | Scopus | |
dc.identifier.bibliograpycitation | Science of the Total Environment. Vol 592, (2017), p.252-261 | |
dc.identifier.doi | 10.1016/j.scitotenv.2017.03.078 | |
Appears in Collections: | Scopus 1983-2021 |
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