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Treatment of Highly Weathered Rock Mass at the Abutment of Earth-Rock Dam in Qiaoqi Hydropower Project

Wang Shougen

Strategic Study of CAE 2005, Volume 7, Issue 3,   Pages 78-83

Abstract:

The abutment is the part where the by-pass seepage and contact erosion often happen to make the damexcavating into the slightly weathered rock mass for the core wall and the reversed filter and the abutmentThe treatment scheme for the highly weathering rock mass on both abutments and grouting tests and groutingThe feasibility to adopt consolidation grouting and seepage treatment measures is argued and the treatment

Keywords： Qiaoqi Hydropower Station     earth-rock dam     treatment of abutment     highly weathered rock mass     consolidation    

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Evaluation of potential failure of rock slope at the left abutment of Jinsha River Bridge by model test

Zhiming ZHAO, Xihua WANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 332-340 doi: 10.1007/s11709-013-0206-x

Abstract: Jinsha River Bridge is located on Tiger Leaping Gorge town, China. The left bank slope composes of moderately thick layer of slate overlain by schistose basalt, and where rocks are controlled by two sets of joint planes. To evaluate the stability of the rock slope under bridge foundation, model test and calculation model based on the geological parameters and the slope stability was simulated and analyzed using Universal Distinct Element Code (UDEC) and Finite Element Mehod (FEM). According to model test, failure mainly initiated at the toe with shear movement along the joint planes, eventually resulting in the sliding along the slope surface and formation of tension crack at the crest of the model. This result coincide with the UDEC model, which shows that slope surface will produce loosening damage and slipping expected along the joint planes under different loading conditions. Moreover, the result of FEM analysis indicates that the rock mass under the main pier has potential shear failure region. So, the bridge foundation should be strengthened to prevent the slope failure under external forces.

Keywords： slope stability     strength properties     model test     numerical analysis    

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Occurrence and migration of microplastics and plasticizers in different wastewater and sludge treatmentunits in municipal wastewater treatment plant

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1577-9

Abstract:

● Reduce the quantifying MPs time by using Nile red staining.

Keywords： Microplastics     Municipal wastewater treatment plant     Phthalate esters     Thermal hydrolysis    

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

Zhiling Wu, Xianchun Tang, Hongbin Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1354-6

Abstract: Abstract • Seasonal and treatment-process variations in invertebrates in a DWTP were analyzed. • TheWe performed a monthly survey of invertebrate abundance and taxa in the effluent of each treatment stagein a drinking water treatment plant between May 2015 and April 2016 and analyzed seasonal and treatment-processThe dominant taxa in the effluent of each treatment stage were rotifers, nematodes, and crustaceans.The proportion of endogenous invertebrates gradually increased along the treatment process.

Keywords： Invertebrates     Drinking water     Seasonal variations     Treatment process    

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Special issue on “Membranes and Water Treatment”

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 561-563 doi: 10.1007/s11705-021-2136-9

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Environment Isotope Method to Investigate the Bypass Abutment Seepage Flow in Xin'anjiang Right Dam

Chen Jiansheng,Liu Jiangang,Dong Haizhou,Chen Liang

Strategic Study of CAE 2004, Volume 6, Issue 1,   Pages 57-63

Abstract: >18O and 3H, temperature and electric conductivity had been used to analyze bypass abutmentis not only from mountain precipitation but also from reservoir water that leak bypassing the right abutmentPart of reservoir water is proved to exist in the observation wells of right dam abutment.

Keywords： environment isotope     by-pass seepage     precipitation     reservoir    

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Impacts of advanced treatment processes on elimination of antibiotic resistance genes in a municipalwastewater treatment plant

Lian Yang, Qinxue Wen, Zhiqiang Chen, Ran Duan, Pan Yang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1116-5

Abstract:

The distributions of ARGs were monitored in a WWTP in Harbin during six months.

CASS had the best removal efficacy of ARGs compared to other processes in the WWTP.

UV disinfection could effectively control the HGT.

AGAC significantly remove ARGs and organics due to its high absorption capacity.

Combination of ozone and AGAC significantly improve removal of ARGs and organics.

Keywords： Antibiotic resistance genes (ARGs)     Wastewater treatment plant (WWTP)     Ultraviolet (UV)     Ozonation     Granular    

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Comparative genotoxicity of water processed by three drinking water treatment plants with different watertreatment procedures

Ting Zhang, Heze Liu, Yiyuan Zhang, Wenjun Sun, Xiuwei Ao

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1214-4

Abstract: Genotoxicity of substances is unknown in the water after treatment processes.Genotoxicity decreased by activated carbon treatment but increased by chlorination.Advanced water treatment is commonly used to remove micropollutants such as pesticides, endocrine disruptingchemicals, and disinfection byproducts in modern drinking water treatment plants.In this study, samples were collected from three drinking water treatment plants with different treatment

Keywords： Drinking water     Treatment process     Genotoxicity     Umu test     Ecological Structure-Activity Relationship    

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Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1699-8

Abstract:

● High amounts of microplastics are released to receiving media from WWTPs.

Keywords： Microplastics     Wastewater treatment plant     Removal efficiency     Daily discharge    

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Chronic hepatitis B virus infection: epidemiology, prevention, and treatment in China

Rui Yu,Rong Fan,Jinlin Hou

Frontiers of Medicine 2014, Volume 8, Issue 2,   Pages 135-144 doi: 10.1007/s11684-014-0331-5

Abstract: Different treatment strategies have been explored to improve patient outcomes in a cost-effective mannerThe results of these studies are crucial in further improving treatment outcomes.

Keywords： chronic hepatitis B     epidemiology     prevention     treatment    

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Inactivation and risk control of pathogenic microorganisms in municipal sludge treatment: A review

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1504-5

Abstract:

• Diversity and detection methods of pathogenic microorganisms in sludge.

Keywords： Sludge treatment     Pathogenic microorganisms     Inactivation mechanisms     Exposure risks     Land application    

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Analysis of the treatment outcomes of esophageal variceal bleeding patients from multiple centers in

WANG Zhiqiang

Frontiers of Medicine 2008, Volume 2, Issue 2,   Pages 171-173 doi: 10.1007/s11684-008-0031-0

Abstract: This study aimed to investigate the treatment outcomes of esophageal variceal bleeding (EVB) in ChinaThe multivariate logistic regression analysis shows that the severity of bleeding, treatment methods,The first-line treatment for EVB is medication.

Keywords： significant difference     predictive     medication     first-line treatment     bleeding    

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

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1495-2

Abstract:

• Quorum sensing enhancement and inhibition methods are summarized.

Keywords： Quorum sensing     Biological waste treatment     Biofilm formation    

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Recent advances in the electrochemical oxidation water treatment: Spotlight on byproduct control

Yang Yang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1264-7

Abstract: Abstract • Byproduct formation mechanisms during electrochemical oxidation water treatment. • ControlElectrochemical oxidation (EO) is a promising technique for decentralized wastewater treatment, owing

Keywords： Electrochemical water treatment     Byproducts     Perchlorate    

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Title Author Date Type Operation

Treatment of Highly Weathered Rock Mass at the Abutment of Earth-Rock Dam in Qiaoqi Hydropower Project

Wang Shougen

Journal Article

Evaluation of potential failure of rock slope at the left abutment of Jinsha River Bridge by model test

Zhiming ZHAO, Xihua WANG

Journal Article

Occurrence and migration of microplastics and plasticizers in different wastewater and sludge treatmentunits in municipal wastewater treatment plant

Journal Article

Luo Jun: Treatment Selection in Prostate Cancer（2019.8.16）

22 Apr 2021

Conference Videos

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

Zhiling Wu, Xianchun Tang, Hongbin Chen

Journal Article

Special issue on “Membranes and Water Treatment”

Journal Article

Environment Isotope Method to Investigate the Bypass Abutment Seepage Flow in Xin'anjiang Right Dam

Chen Jiansheng,Liu Jiangang,Dong Haizhou,Chen Liang

Journal Article

Impacts of advanced treatment processes on elimination of antibiotic resistance genes in a municipalwastewater treatment plant

Lian Yang, Qinxue Wen, Zhiqiang Chen, Ran Duan, Pan Yang

Journal Article

Comparative genotoxicity of water processed by three drinking water treatment plants with different watertreatment procedures

Ting Zhang, Heze Liu, Yiyuan Zhang, Wenjun Sun, Xiuwei Ao

Journal Article

Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

Journal Article

Chronic hepatitis B virus infection: epidemiology, prevention, and treatment in China

Rui Yu,Rong Fan,Jinlin Hou

Journal Article

Inactivation and risk control of pathogenic microorganisms in municipal sludge treatment: A review

Journal Article

Analysis of the treatment outcomes of esophageal variceal bleeding patients from multiple centers in

WANG Zhiqiang

Journal Article

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

Journal Article

Recent advances in the electrochemical oxidation water treatment: Spotlight on byproduct control

Yang Yang

Journal Article