DOI: 10.1016/j.watres.2017.10.036
Scopus记录号: 2-s2.0-85035011559
论文题名: Evaluation of a full-scale wastewater treatment plant upgraded with ozonation and biological post-treatments: Abatement of micropollutants, formation of transformation products and oxidation by-products
作者: Bourgin M. ; Beck B. ; Boehler M. ; Borowska E. ; Fleiner J. ; Salhi E. ; Teichler R. ; von Gunten U. ; Siegrist H. ; McArdell C.S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 129 起始页码: 486
结束页码: 498
语种: 英语
英文关键词: Bromate
; Granular activated carbon
; Nitrosamines
; Ozonation
; Transformation products
; Wastewater treatment
Scopus关键词: Activated carbon
; Activated carbon treatment
; Biological water treatment
; Catchments
; Clarifiers
; Effluents
; Filtration
; Granular materials
; Nitrosamines
; Organic carbon
; Ozone
; Ozone water treatment
; Ozonization
; Potable water
; Reclamation
; Sewage pumping plants
; Toxicity
; Water treatment plants
; Assimilable organic carbon
; Biological post-treatment
; Bromate
; Dissolved organic carbon
; Ecotoxicological effects
; Granular activated carbons
; Transformation products
; Wastewater treatment plants
; Wastewater treatment
; acesulfame
; acetic acid derivative
; activated carbon
; aliskiren
; amisulpride
; atenolol
; azithromycin
; bezafibrate
; candesartan
; carbamazepine
; carbendazim
; cetirizine
; chlorothiazide
; citalopram
; clarithromycin
; diclofenac
; diethyltoluamide
; dissolved organic matter
; diuron
; drinking water
; eprosartan
; fexofenadine
; gabapentin
; hydrochlorothiazide
; iopromide
; irbesartan
; levetiracetam
; organic carbon
; triclosan
; trimethoprim
; bromate
; dimethylnitrosamine
; ozone
; water
; activated carbon
; biodegradation
; bromine compound
; dissolved organic carbon
; effluent
; organic compound
; oxidation
; ozonation
; pollutant removal
; suspended particulate matter
; wastewater treatment plant
; Article
; catchment
; controlled study
; ecotoxicology
; force
; oxidation
; ozonation
; priority journal
; suspended particulate matter
; Switzerland
; waste component removal
; waste water treatment plant
; water quality
; water sampling
; water supply
; winter
; analysis
; chemistry
; devices
; evaluation study
; filtration
; oxidation reduction reaction
; procedures
; waste water
; water management
; water pollutant
; Switzerland
; Bromates
; Dimethylnitrosamine
; Filtration
; Oxidation-Reduction
; Ozone
; Switzerland
; Waste Water
; Water
; Water Pollutants, Chemical
; Water Purification
英文摘要: To protect the ecosystem and drinking water resources in Switzerland and in the countries of the downstream catchments, a new Swiss water protection act entered into force in 2016 aiming to reduce the discharge of micropollutants from wastewater treatment plants (WWTPs). As a consequence, selected WWTPs must be upgraded by an advanced treatment for micropollutant abatement with suitable and economic options such as (powdered) activated carbon treatment or ozonation. WWTP Neugut (105′000 people equivalent) was the first WWTP in Switzerland to implement a long-term full-scale ozonation. Differing specific ozone doses in the range of 0.35–0.97 g O3/g DOC were applied to determine the adequate ozone dose to fulfill the requirements of the Swiss water protection act. Based on this assessment, a specific ozone dose of 0.55 g O3/g DOC is recommended at this plant to ensure an average abatement of the twelve selected indicator substances by ≥80% over the whole treatment. A monitoring of 550 substances confirmed that this dose was very efficient to abate a broad range of micropollutants by >79% on average. After ozonation, an additional biological post-treatment is required to eliminate possible negative ecotoxicological effects generated during ozonation caused by biodegradable ozonation transformation products (OTPs) and oxidation by-products (OBPs). Three biological treatments (sand filtration, moving bed, fixed bed) and granular activated carbon (GAC, fresh and pre-loaded) filtration were evaluated as post-treatments after ozonation. In parallel, a fresh GAC filter directly connected to the effluent of the secondary clarifier was assessed. Among the three purely biological post-treatments, the sand filtration performed best in terms of removal of dissolved organic carbon (DOC), assimilable organic carbon (AOC) and total suspended solids (TSS). The fresh activated carbon filtration ensured a significant additional micropollutants abatement after ozonation due to sorption. The relative abatement of the indicator substances ranged between 20 and 89% after 27′000 bed volumes (BV) and was still substantial at 50′000 BV. In an identical GAC filter running in parallel and being fed with the effluent of the secondary clarifier, the elimination was less efficient. Seven primary OTPs (chlorothiazide and six N-oxides) formed during ozonation could be quantified thanks to available reference standards. Their concentration decreased with increasing specific ozone doses with the concomitant formation of other OTPs. The seven OTPs were found to be stable compounds and were not abated in the biological post-treatments. They were sorbed in the fresh GAC filter, but less efficiently than the corresponding parent compounds. Two OBPs, bromate (BrO3 −) and N-nitrosodimethylamine (NDMA), were formed during ozonation but did not exceeded 5 μg/L for bromate and 30 ng/L for NDMA at the recommended specific ozone dose of 0.55 g O3/g DOC. NDMA was well abated in all post-treatments (minimum 41% during fixed bed filtration, maximum 83% during fresh GAC filtration), while bromate was very stable as expected. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113118
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, CH-8600, Switzerland; Silesian University of Technology, Faculty of Power and Environmental Engineering, Environmental Biotechnology Department, Gliwice, PL-44100, Poland; School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH Zurich, Zurich, CH-8092, Switzerland; Karlsruhe Institute of Technology (KIT), Engler-Bunte-Institut, Water Chemistry and Water Technology, Karlsruhe, DE-76131, Germany
Recommended Citation:
Bourgin M.,Beck B.,Boehler M.,et al. Evaluation of a full-scale wastewater treatment plant upgraded with ozonation and biological post-treatments: Abatement of micropollutants, formation of transformation products and oxidation by-products[J]. Water Research,2018-01-01,129