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Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

《环境科学与工程前沿（英文）》 2023年 第17卷 第11期 doi: 10.1007/s11783-023-1736-7

摘要：

● The PCDD/F distribution patterns of the FW-AD process were investigated.

关键词： Biological treatment     MSW classification     Mass balance     Solid digestate    

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Removal efficiencies of natural and synthetic progesterones in hospital wastewater treated by different disinfection processes

《环境科学与工程前沿（英文）》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1558-z

摘要：

● The concentrations of 61 progesterones in HWW, PFTE, SBTE were evaluated.

关键词： Progesterones     Hospital wastewater     Primary filtration treatment effluent     Secondary biological treatment effluent     Disinfection process    

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Occurrence and removal of

Lin WANG,Yongmei LI,Xiaoling SHANG,Jing SHEN

《环境科学与工程前沿（英文）》 2014年 第8卷 第4期   页码 519-530 doi: 10.1007/s11783-013-0610-4

摘要： Six wastewater treatment plants (WWTPs) were investigated to evaluate the occurrence and removal of -nitrosodimethylamine (NDMA), NDMA formation potential (FP) and four specific NDMA precursors, dimethylamine (DMA), trimethylamine (TMA), dimethylformamide (DMFA) and dimethylaminobenzene (DMAB). DMA and tertiary amines with DMA functional group commonly existed in municipal wastewater. Chemically enhanced primary process (CEPP) had no effect on removal of either NDMA or NDMA FP. In WWTPs with secondary treatment processes, considerable variability was observed in the removal of NDMA (19%–85%) and NDMA FP (16%–76%), moreover, there was no definite relationship between the removal of NDMA and NDMA FP. DMA was well removed in all the six surveyed WWTPs; its removal efficiency was greater than 97%. For the removal of tertiary amines, biologic treatment processes with nitrification and denitrification had better removal efficiency than conventional activated sludge process. The best removal efficiencies for TMA, DMFA and DMAB were 95%, 68% and 72%, respectively. CEPP could remove 73% of TMA, 23% of DMFA and 36% of DMAB. After UV disinfection, only 17% of NDMA was removed due to low dosage of UV was applied in WWTP. Although chlorination could reduce NDMA precursors, NDMA concentration was actually increased after chlorination.

关键词： N-nitrosodimethylamine     NDMA precursors     NDMA formation potential     biological treatment process     chemically enhanced primary process    

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Characteristics and removal mechanism of the precursors of N-chloro-2,2-dichloroacetamide in a drinking water treatmentprocess at Taihu Lake

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1338-6

摘要：

• N-Cl-DCAM, an emerging N-DBP in drinking water was investigated.

关键词： N-chloro-2     2-dichloroacetamide     Liquid chromatography with tandem mass spectrometry     Precursors     Removal efficiency     Ozonation integrated with biological activated carbon    

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Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

《环境科学与工程前沿（英文）》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1495-2

摘要：

• Quorum sensing enhancement and inhibition methods are summarized.

关键词： Quorum sensing     Biological waste treatment     Biofilm formation    

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流化床生物反应器在污水处理中的应用研究和进展综述 Review

Michael J. Nelson, George Nakhla, Jesse Zhu

《工程（英文）》 2017年 第3卷 第3期   页码 330-342 doi: 10.1016/J.ENG.2017.03.021

摘要：

污水处理是保护环境和人类健康的重要过程。目前，最经济有效的污水处理方法为生物处理法，如运行时间较长的活性污泥法。然而，随着人口的增长，对新型高效污水处理技术的需求越来越迫切，流态化技术虽然已展示出能够提高许多化学与生化处理过程的效率，但尚未在大型污水处理过程中得到广泛的应用。循环流化床生物反应器 (CFBBR) 污水处理技术的研究始于加拿大西安大略大学，在该技术中，载体颗粒表面会形成一层含细菌与其他微生物的生物膜，并在反应器中呈流化状态；流态化固有的良好混合和质量传递特性，使得该技术在生活污水和工业污水处理过程中均具优势。实验室阶段和中试阶段的研究均证实了CFBBR 可去除污水中90% 以上的碳源、80%以上的氮源，且污泥产量少于活性污泥法的1/3。由于该技术的高效性，CFBBR 还可被用于传统方法难以处理的高有机碳污水处理，且具有占地面积小的优势。同时，CFBBR 在动态负荷试验 (进水量和进水浓度变化) 中也展现了良好的抗冲击和恢复性能。总的来说，CFBBR 是一种高效的污水处理方法，可在较短的水力停留时间和较小的反应器体积内处理更多的污水。此外，该反应器的紧凑设计将有助于在偏僻地区建造独立的污水处理系统。

关键词： 污水     污水生物处理     流化床技术     生物流化床反应器     生物营养物去除     生物膜技术     生物颗粒     高效过程    

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Field experiment on biological contact oxidation process to treat polluted river water in the Dianchi

Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN

《环境科学与工程前沿（英文）》 2009年 第3卷 第1期   页码 38-47 doi: 10.1007/s11783-009-0007-6

摘要： In this study two types of biological contact oxidation processes (BCOP), a step-feed (SBCOP) unit and an inter-recycle (IBCOP) unit, were designed to investigate the treatment of heavily polluted river water. The Daqing River, which is the largest pollutant contributor to the Dianchi Lake, one of the most eutrophic freshwater lakes in China, was taken for the case study. It was found that the SBCOP had higher adaptability and better performance in the reduction of COD, TN, and TP, which made it applicable for the treatment of polluted river water entering the Dianchi Lake. Nitrification rate was observed to be greatly affected by the influent temperature. During each season, the nitrification in the SBCOP was higher than that in the IBCOP. TN removal efficiency in the SBCOP was higher than that in the IBCOP during the winter and spring but poorer during the summer, possibly due to the inhibition of denitrification by higher dissolved oxygen level in the summer. Moreover, symbiotic algae-bacteria growth may be conducive to the removal of pollutants.

关键词： step-feed biological contact oxidation process (SBCOP)     inter-recycle biological contact oxidation process (IBCOP)     river water     removal efficiency     nitrogen transformation     the Dianchi Lake watershed    

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Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

《环境科学与工程前沿（英文）》 2007年 第1卷 第1期   页码 67-72 doi: 10.1007/s11783-007-0013-5

摘要： This work aims to explore a procedure to improve biological wastewater treatment efficiency using low intensity ultrasound. The aerobic activated sludge from a municipal wastewater treatment plant was used as the experimental material. Oxygen uptake rate (OUR) of the activated sludge (AS) was determined to indicate the changes of AS activity stimulated by ultrasound at 35 kHz for 0 40 min with ultrasonic intensities of 0 1.2 W/cm. The highest OUR was observed at the ultrasonic intensity of 0.3 W/cm and an irradiation period of 10 min; more than 15% increase was achieved immediately after sonication. More significantly, the AS activity stimulated by ultrasound could last 24 h after sonication, and the AS activity achieved its peak value within 8 h after sonication, or nearly 100% higher than the initial level after sonication. Therefore, to improve the wastewater treatment efficiency of bioreactors, ultrasound with an intensity of 0.3 W/cm could be employed to irradiate a part of the AS in the bioreactor for 10 min every 8 h.

关键词： sonication     irradiation     kHz     treatment efficiency     AS activity    

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Simultaneous Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophicbiological nitrogen removal

《环境科学与工程前沿（英文）》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1498-z

摘要：

• The autotrophic nitrogen removal combining Feammox and Anammox was achieved.

关键词： Feammox     Anammox     Extracellular electron transfer     Electron shuttle     Activated carbon    

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Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

《环境科学与工程前沿（英文）》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1354-6

摘要： Abstract • Seasonal and treatment-process variations in invertebrates in a DWTP were analyzed. • The propagation and leakage of invertebrates in BAC filter were the most serious. • Invertebrates can survive and reproduce in chlorine disinfected clear water tanks. • Proportions of endogenous invertebrates increased along the treatment process. Problems associated with excessive propagation and leakage of invertebrates in drinking water have received increasing attention in recent years. We performed a monthly survey of invertebrate abundance and taxa in the effluent of each treatment stage in a drinking water treatment plant between May 2015 and April 2016 and analyzed seasonal and treatment-process variations in invertebrates. The results showed that invertebrate abundances in raw water, effluent of the biological activated carbon (BAC) filter, and finished water significantly correlated with water temperature, whereas no correlation was observed between water temperature and invertebrate abundance in the effluents of the sedimentation tank and sand filter. The dominant taxa in the effluent of each treatment stage were rotifers, nematodes, and crustaceans. The sedimentation tank could efficiently remove invertebrates with an annual average removal rate of 92%. The propagation and leakage of invertebrates occurred in the sand and BAC filters but more seriously in the latter. The average reproduction rate in the BAC filter was 268.8% with rotifers as the taxon that leaked the most. Invertebrate survival and reproduction were also observed in the chlorine-disinfected clean water reservoir with an average reproduction rate of 41.9%. Owing to differences in chlorine resistance, the reproduction ability of the dominant taxa was in the order nematodes>crustaceans>rotifers. The proportion of endogenous invertebrates gradually increased along the treatment process. The average proportion of endogenous invertebrates in the finished water was higher than 79.0%. Our findings suggested that waterworks should pay more attention to endogenous invertebrate growth.

关键词： Invertebrates     Drinking water     Seasonal variations     Treatment process    

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Isolation and application of an ibuprofen-degrading bacterium to a biological aerated filter for thetreatment of micro-polluted water

Bingjie Xu, Gang Xue, Xing Yang

《环境科学与工程前沿（英文）》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1080-5

摘要：

• An ibuprofen-degrading strain, Serratia marcescens BL1, was isolated and identified.

• The effects of various factors on ibuprofen degradation by BL1 were evaluated.

• Strain BL1 was applied to a laboratory-scale biological aerated filter system.

• Strain BL1 was stable in both static tests and in the biological aerated filter system.

关键词： Ibuprofen     Biological aerated filter     Degrading bacterium     Serratia marcescens    

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Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

《环境科学与工程前沿（英文）》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1486-3

摘要：

• Energy is needed to accelerate the biological wastewater treatment.

关键词： Biological wastewater treatment     Integrated energy view     Electroactive bacteria     Extracellular electron transfer    

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Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

《环境科学与工程前沿（英文）》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1426-2

摘要：

• AOA and comammox bacteria can be more abundant and active than AOB/NOB at WWTPs.

关键词： Ammonia oxidizing archaea (AOA)     Complete ammonia oxidizing (comammox) bacteria     Dissimilatory nitrate reduction to ammonium (DNRA) bacteria     Nitrate/nitrite-dependent anaerobic methane oxidizing (NOx-DAMO) microorganisms     Engineering application    

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Metallic wastewater treatment by sulfate reduction using anaerobic rotating biological contactor reactor

Mothe Gopi Kiran, Kannan Pakshirajan, Gopal Das

《环境科学与工程前沿（英文）》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1073-4

摘要：

An-RBC reactor is highly suited to treat metallic wastewater.

Metal removal is due to sulfide precipitation via sulfate reduction by SRB.

Cu(II) removal was the best among the different heavy metals.

Maximum metal removal is achieved at low metal loading condition.

Metal removal matched well with the solubility product values of respective metal sulfide salts.

关键词： Factorial design analysis     sulfate reducing bacteria     multi-metal solution     heavy metal removal     anaerobic rotating biological contactor reactor     high metal loading.    

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Innovative method of culturing bdelloid rotifers for the application of wastewater biological treatment

《环境科学与工程前沿（英文）》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1477-4

摘要：

• An innovative method of culturing bdelloid rotifer fed on flour was proposed.

关键词： Mass culture     Bdelloid rotifer     Habrotrocha     Wheat flour     Sludge settleability    

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标题 作者 时间 类型 操作

Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

期刊论文

Removal efficiencies of natural and synthetic progesterones in hospital wastewater treated by different disinfection processes

期刊论文

Occurrence and removal of

Lin WANG,Yongmei LI,Xiaoling SHANG,Jing SHEN

期刊论文

Characteristics and removal mechanism of the precursors of N-chloro-2,2-dichloroacetamide in a drinking water treatmentprocess at Taihu Lake

期刊论文

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

期刊论文

流化床生物反应器在污水处理中的应用研究和进展综述

Michael J. Nelson, George Nakhla, Jesse Zhu

期刊论文

Field experiment on biological contact oxidation process to treat polluted river water in the Dianchi

Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN

期刊论文

Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

期刊论文

Simultaneous Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophicbiological nitrogen removal

期刊论文

Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

期刊论文

Isolation and application of an ibuprofen-degrading bacterium to a biological aerated filter for thetreatment of micro-polluted water

Bingjie Xu, Gang Xue, Xing Yang

期刊论文

Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

期刊论文

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

期刊论文

Metallic wastewater treatment by sulfate reduction using anaerobic rotating biological contactor reactor

Mothe Gopi Kiran, Kannan Pakshirajan, Gopal Das

期刊论文

Innovative method of culturing bdelloid rotifers for the application of wastewater biological treatment

期刊论文