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A CFD study of the transport and fate of airborne droplets in a ventilated office: The role of droplet

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1465-8

Abstract:

• Coulomb and Lennard−Jones forces were considered for droplet interactions.

Keywords: Droplet interactions     Aerosols     Colloids     CFD     Transport     Fate    

Microplastic and Nanoplastic Pollution: Characterization, Transport, Fate, and Remediation Strategies

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 12-12 doi: 10.1007/s11783-021-1446-y

Abstract: addressed various topics of microplastic or nanoplastic pollution, characteristic, and environmental fate

Migration and fate of polycyclic aromatic hydrocarbons in bioretention systems with different media:

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1802-9

Abstract:

● Bioretention systems showed > 92% load reduction rates of PAHs.

Keywords: Bioretention     Polycyclic aromatic hydrocarbons     HYDRUS-1D     Model simulation     Migration    

Dynamic fate modeling of γ-hexachlorocyclohexane in the lower reaches of the Liao River

LIU Zhenyu, YANG Fenglin, QUAN Xie, ZHANG Xiaohong

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 166-171 doi: 10.1007/s11783-007-0029-x

Abstract: A QWASI model dependent on temperature is parameterized to describe the long-term fate of persistentThis model is used to simulate the fate of γ-hexachlorocyclohexane (γ-HCH) in the lower reaches of theIt is believed that the model is appropriate for simulating the long term fate of POPs in the Liao River

Keywords: coefficient     POPs     temperature     sediment increase     dependent    

Occurrence and fate of antibiotics in advanced wastewater treatment facilities and receiving rivers in

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG,Yiping GAN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 888-894 doi: 10.1007/s11783-014-0735-0

Abstract: The occurrence and removal of 13 antibiotics were investigated in five wastewater treatment plants (WWTPs) with advanced wastewater treatment processes in Beijing, China. Most of the target antibiotics were detected in the secondary and tertiary effluents, with the concentrations of 4.8–1106.0 and 0.3–505.0 ng·L . Fluoroquinolone antibiotics showed relatively high concentrations in all samples (782–1814 ng·L ). Different tertiary treatment processes showed discrepant antibiotics removal performances. Ozonation process was found more effective in removing target antibiotics compared to the coagulation-flocculation-sedimentation process and sand filtration process. Investigation of the target antibiotics in three typical urban rivers in Beijing was carried out to understand antibiotics occurrence in surface water environment. Eight antibiotics were detected in the studied rivers, with highest concentration of antibiotics in the river which was mainly replenished by reclaimed water. This study showed the necessity of employing more effective advanced treatment facilities to further reduce the discharge amount of antibiotics.

Keywords: antibiotics     advanced treatment     urban river     reclaimed water    

Identification of resistant pharmaceuticals in ozonation using QSAR modeling and their fate in electro-peroxone

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1394-6

Abstract:

• Effect of converting ozonation to E-peroxone was studied on pharmaceutical removal.

Keywords: Ozone     Electro-peroxone     Wastewater     Quantitative structure activity relationship     Advanced oxidation processes    

Occurrence and fate of typical antibiotics in wastewater treatment plants in Harbin, North-east China

Weihua Wang, Wanfeng Zhang, Hong Liang, Dawen Gao

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1118-3

Abstract:

• The concentration distributions and removals of 12 antibiotics were investigated.

• Macrolides and fluoroquinolones presented relatively higher concentrations.

• The removal of antibiotics did not differ among the different treatment processes.

Keywords: Antibiotics     WWTPs     Occurrence     Removal efficiency    

NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 386-395 doi: 10.15302/J-FASE-2022443

Abstract:

● Excessive application of N fertilizers in orchards and vegetable fields (OVFs) in China is particularly common.

Keywords: nitrogen fate     nitrogen fertilizer     orchards     vegetable fields    

performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The fate

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1366-2

Abstract:

•Bacterially-mediated coupled N and Fe processes examined in incubation experiments.

Keywords: Denitrification     N2O emission     Fe(II) oxidation     Fe/N ratio     Fe minerals    

Fate and risk assessment of emerging contaminants in reclaimed water production processes

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1392-8

Abstract:

• PPCPs had the highest removal efficiency in A2O combined with MBR process (86.8%).

Keywords: Trace organic pollution     Antibiotic resistance genes     Reclaimed wastewater     Sludge     Risk assessment     Mass load    

Numerical simulation of benzene transport in shoreline groundwater affected by tides under different conditions

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1540-9

Abstract:

● An approach for assessing the transport of benzene on the beach was proposed.

Keywords: Numerical simulation     Benzene     Transport and fate     Shoreline     Groundwater     Tide    

Nitrate removal to its fate in wetland mesocosm filled with sponge iron: Impact of influent COD/N ratio

Zhihao Si, Xinshan Song, Xin Cao, Yuhui Wang, Yifei Wang, Yufeng Zhao, Xiaoyan Ge, Awet Arefe Tesfahunegn

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1183-7

Abstract: CW-Fe allowed a high-performance of NO3‒-N removal at the COD/N ratio of 0. Higher COD/N resulted in lower chem-denitrification and higher bio-denitrification. The application of s-Fe0 contributed to TIN removal in wetland mesocosm. s-Fe0 changed the main denitrifiers in wetland mesocosm. Sponge iron (s-Fe0) is a porous metal with the potential to be an electron donor for denitrification. This study aims to evaluate the feasibility of using s-Fe0 as the substrate of wetland mesocosms. Here, wetland mesocosms with the addition of s-Fe0 particles (CW-Fe) and a blank control group (CW-CK) were established. The NO3‒-N reduction property and water quality parameters (pH, DO, and ORP) were examined at three COD/N ratios (0, 5, and 10). Results showed that the NO3‒-N removal efficiencies were significantly increased by 6.6 to 58.9% in the presence of s-Fe0. NH4+-N was mainly produced by chemical denitrification, and approximately 50% of the NO3‒-N was reduced to NH4+-N, at the COD/ratio of 0. An increase of the influent COD/N ratio resulted in lower chemical denitrification and higher bio-denitrification. Although chemical denitrification mediated by s-Fe0 led to an accumulation of NH4+-N at COD/N ratios of 0 and 5, the TIN removal efficiencies increased by 4.5%‒12.4%. Moreover, the effluent pH, DO, and ORP values showed a significant negative correlation with total Fe and Fe (II) (P<0.01). High-throughput sequencing analysis indicated that Trichococcus (77.2%) was the most abundant microorganism in the CW-Fe mesocosm, while Thauera, Zoogloea, and Herbaspirillum were the primary denitrifying bacteria. The denitrifiers, Simplicispira, Dechloromonas, and Denitratisoma, were the dominant bacteria for CW-CK. This study provides a valuable method and an improved understanding of NO3‒-N reduction characteristics of s-Fe0 in a wetland mesocosm.

Keywords: Sponge iron     Wetland mesocosm     Electronic donor     Denitrification     COD/N ratio    

Fate of microplastics in a coastal wastewater treatment plant: Microfibers could partially break through

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1517-0

Abstract:

Fate of microplastics in integrated membrane system for water reuse

Keywords: Water reclamation     Integrated membrane system     Microplastics     Removal     Coastal zone    

A Research on the Bioremediation and the Fate of Oil Pollutant in Soil

Qi Yongqiang,Wang Hongqi,Liu Jingqi

Strategic Study of CAE 2003, Volume 5, Issue 8,   Pages 70-75

Abstract:

Bioremediation is now a promising way to treat oil-polluted soil. In this paper, the author arranged the 7 main factors influencing the bioremediation found in former experiments on 16 samples with the help of orthogonal table and performed a series of experiments. The relative weights and optimal levels of these factors are found; the fates of different components in oil during the late phase of the bioremediation are studied; the structure differences among the residues are analyzed. The 7 factors influencing the bioremediation of oil-polluted soil are: pollution intensity, nutrients (NH4NO3, K2HPO4), oxidant (3%H2O2 Solution), surfactant (TW80), temperature, water ratio and soil disturbance. The weights and optimal levels of factors can change during different phases of the bioremediation. In the late phase of the bioremediation, the main residues of oil pollutant are n-alkanes and isomeric alkanes. The spectrogram of n-alkanes changs from a symmetrical bell shape to an unsymmetrical bell shape. The proportion of isomeric alkanes increases and the base line from C15 to C21 is driven up.

Keywords: soil     oil pollution     bioremediation    

Fate and removal of typical pharmaceutical and personal care products in a wastewater treatment plant

Jie GAO,Jun HUANG,Weiwei CHEN,Bin WANG,Yujue WANG,Shubo DENG,Gang YU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 491-501 doi: 10.1007/s11783-016-0837-y

Abstract: The fate and removal of pharmaceuticals and personal care products (PPCPs) in wastewater treatment plants

Keywords: PPCPs     A2/O     mass balance     removal efficiency     sludge    

Title Author Date Type Operation

A CFD study of the transport and fate of airborne droplets in a ventilated office: The role of droplet

Journal Article

Microplastic and Nanoplastic Pollution: Characterization, Transport, Fate, and Remediation Strategies

Journal Article

Migration and fate of polycyclic aromatic hydrocarbons in bioretention systems with different media:

Journal Article

Dynamic fate modeling of γ-hexachlorocyclohexane in the lower reaches of the Liao River

LIU Zhenyu, YANG Fenglin, QUAN Xie, ZHANG Xiaohong

Journal Article

Occurrence and fate of antibiotics in advanced wastewater treatment facilities and receiving rivers in

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG,Yiping GAN

Journal Article

Identification of resistant pharmaceuticals in ozonation using QSAR modeling and their fate in electro-peroxone

Journal Article

Occurrence and fate of typical antibiotics in wastewater treatment plants in Harbin, North-east China

Weihua Wang, Wanfeng Zhang, Hong Liang, Dawen Gao

Journal Article

NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS

Journal Article

performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The fate

Journal Article

Fate and risk assessment of emerging contaminants in reclaimed water production processes

Journal Article

Numerical simulation of benzene transport in shoreline groundwater affected by tides under different conditions

Journal Article

Nitrate removal to its fate in wetland mesocosm filled with sponge iron: Impact of influent COD/N ratio

Zhihao Si, Xinshan Song, Xin Cao, Yuhui Wang, Yifei Wang, Yufeng Zhao, Xiaoyan Ge, Awet Arefe Tesfahunegn

Journal Article

Fate of microplastics in a coastal wastewater treatment plant: Microfibers could partially break through

Journal Article

A Research on the Bioremediation and the Fate of Oil Pollutant in Soil

Qi Yongqiang,Wang Hongqi,Liu Jingqi

Journal Article

Fate and removal of typical pharmaceutical and personal care products in a wastewater treatment plant

Jie GAO,Jun HUANG,Weiwei CHEN,Bin WANG,Yujue WANG,Shubo DENG,Gang YU

Journal Article