https://scholars.lib.ntu.edu.tw/handle/123456789/408310
Title: | Fate of trace organic contaminants in oxic-settling-anoxic (OSA) process applied for biosolids reduction during wastewater treatment | Authors: | Semblante G.U. Hai F.I. McDonald J. Khan S.J. Nelson M. Lee D.-J. Price W.E. Nghiem L.D. |
Keywords: | Biodegradation; Biosolids yield reduction; Municipal wastewater; Oxic-settling-anoxic process; Sorption; Trace organic contaminants | Issue Date: | 2017 | Journal Volume: | 240 | Start page/Pages: | 181-191 | Source: | Bioresource Technology | Abstract: | This study investigated the fate of trace organic contaminants (TrOCs) in an oxic-settling-anoxic (OSA) process consisting of a sequencing batch reactor (SBR) with external aerobic/anoxic and anoxic reactors. OSA did not negatively affect TrOC removal of the SBR. Generally, low TrOC removal was observed under anoxic and low substrate conditions, implicating the role of co-metabolism in TrOC biodegradation. Several TrOCs that were recalcitrant in the SBR (e.g., benzotriazole) were biodegraded in the external aerobic/anoxic reactor. Some hydrophobic TrOCs (e.g., triclosan) were desorbed in the anoxic reactor possibly due to loss of sorption sites through volatile solids destruction. In OSA, the sludge was discharged from the aerobic/anoxic reactor which contained lower concentration of TrOCs (e.g., triclosan and triclocarban) than that of the control aerobic digester, suggesting that OSA can also help to reduce TrOC concentration in residual biosolids. © 2017 Elsevier Ltd |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408310 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2017.02.053 | SDG/Keyword: | Batch reactors; Biodegradation; Biological materials; Biosolids; Sorption; Aerobic digesters; Anoxic process; Municipal wastewaters; Sequencing batch reactors; Substrate conditions; Trace organic contaminants; Volatile solids destruction; Yield reduction; Wastewater treatment; amitriptyline; androstenedione; aspartame; atenolol; benzophenone; benzotriazole derivative; butyl paraben; caffeine; clozapine; dimpylate; estriol; ethinylestradiol; etiocholanolone; gemfibrozil; hydroxybiphenyl; ibuprofen; ketoprofen; levonorgestrel; naproxen; paracetamol; primidone; propyl paraben; saccharin; salicylic acid; sucralose; sulfamethoxazole; triclocarban; triclosan; trimethoprim; verapamil; sewage; waste water; anoxic conditions; biodegradation; bioreactor; biosolid; chemical process; environmental fate; organic compound; organic pollutant; oxic conditions; reduction; sorption; volatile substance; wastewater treatment; Article; biodegradation; biosolid; chemical oxygen demand; controlled study; denitrification; effluent; high performance liquid chromatography; hydrophobicity; nitrification; organic waste; oxic settling anoxic process; priority journal; quadrupole mass spectrometry; sedimentation; sequencing batch reactor; sludge; static electricity; suspended particulate matter; trace organic contaminant; waste component removal; water analysis; water pollutant; bioreactor; bioremediation; sewage; waste water; Biodegradation, Environmental; Bioreactors; Sewage; Waste Disposal, Fluid; Waste Water |
Appears in Collections: | 化學工程學系 |
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