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Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites

Rongxin Zhang, Peinan Zhong, Hamidreza Arandiyan, Yanan Guan, Jinmin Liu, Na Wang, Yilai Jiao, Xiaolei Fan

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 275-287 doi: 10.1007/s11705-019-1905-1

Abstract: Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agentsSpecifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed asIn comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparativelyAdditionally, the first step of chemical dealumination treatment was crucial to enable the effectiveTherefore, appropriate selection of the condition of the chemical dealumination treatment based on the

Keywords： zeolite Y     mesoporous zeolite     post-synthesis treatment     ultrasound     chemical dealumination treatment     alkalinedesilication treatment    

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Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 543-553 doi: 10.1007/s11705-018-1778-8

Abstract: The hierarchical HZSM-5 was prepared via dealumination and desilication of commercial Al-rich HZSM-5,The results showed that partial framework of HZSM-5 was removed after steam treatment at 0.15 MPa, 500Dealumination and desilication of Al-rich HZSM-5 zeolites became more effective using a combination ofsteam and alkaline treatments than using alkaline treatment alone.The results indicated that after steam treatment, HZSM-5 further treated with 0.2 mol/L NaOH exhibits

Keywords： steam treatment     alkaline treatment     hierarchical ZSM-5     methanol aromatization    

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Applying chemical sedimentation process in drinking water treatment plant to address the emergent arsenic

Pengfei LIN,Xiaojian ZHANG,Hongwei YANG,Yong LI,Chao CHEN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 50-57 doi: 10.1007/s11783-014-0733-2

Abstract: water treatment plants.In response, we developed a chemical sedimentation technology to remove arsenic contaminants for watertreatment plants.were conducted to investigate the efficiency of arsenic removal and the influencing factors of the chemicalThe As(III) contaminants are more recalcitrant to chemical sedimentation, 75% for ferric coagulant and

Keywords： Arsenic spill     chemical sedimentation     coagulation     drinking water     emergency treatment    

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Increasing significance of advanced physical/chemical processes in the development and application ofsustainable wastewater treatment systems

RULKENS Wim

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 385-396 doi: 10.1007/s11783-008-0073-1

Abstract: the problem of the scarcity of water of high quality has strongly changed the approach of wastewater treatmentrole and significance of physical/chemical processes in wastewater treatment are gaining more and moreThe specific future role and aim of the various physical/chemical treatment processes can be categorizedof concentrated liquid or solid waste residues produced in a wastewater treatment process.Development of more environmentally sustainable wastewater treatment chains in which physical/chemical

Keywords： control     beneficial     valuable     scarcity     Development    

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Alkaline modification of ZSM-5 catalysts for methanol aromatization: The effect of the alkaline concentration

Zhenhao Wei,Tengfei Xia,Minghui Liu,Qingsheng Cao,Yarong Xu,Kake Zhu,Xuedong Zhu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 450-460 doi: 10.1007/s11705-015-1542-2

Abstract: The effects of alkaline treatment on the physical properties of ZSM-5 catalysts and on their activitiesA mild alkaline treatment (0.2 and 0.3 mol/L NaOH) created mesopores in the parent zeolite with no obviousTreatment with 0.4 mol/L NaOH decreased the number of Brønsted acid sites due to dealumination and desilicationIn addition, more mesopores were produced than with the mild alkaline treatment.Treatment with a higher alkaline concentration (0.5 mol/L) greatly reduced the number of Brønsted acid

Keywords： aromatics     ZSM-5     alkaline treatment     dealumination     desilication     mesopores     methanol    

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Using loose nanofiltration membrane for lake water treatment: A pilot study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1362-6

Abstract:

• A pilot study was conducted for drinking water treatment using loose

Keywords： Nanofiltration     Drinking water     Membrane fouling     Aluminum carryover     Chemical cleaning    

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Pesticide wastewater treatment using the combination of the microbial electrolysis desalination and chemical-production

Songwei Lin, Yaobin Lu, Bo Ye, Cuiping Zeng, Guangli Liu, Jieling Li, Haiping Luo, Renduo Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1191-7

Abstract: The combination of the microbial electrolysis desalination and chemical-production cell (MEDCC) and Fentonprocess for the pesticide wastewater treatment was investigate in this study.

Keywords： Pesticide wastewater     COD removal     Microbial electrolysis desalination and chemical-production cell     Energy    

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Locally enhanced electric field treatment (LEEFT) for water disinfection

Jianfeng Zhou, Ting Wang, Cecilia Yu, Xing Xie

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1253-x

Abstract: Water disinfection is a critical step in water and wastewater treatment.Here, a nanowire-enabled disinfection method, locally enhanced electric field treatment (LEEFT), is introducedwith advantages of no chemical addition, no DBP formation, low energy consumption, and efficient microbial

Keywords： Water treatment     Nanotechnology     Pathogen inactivation     Electroporation     Nanowire     Chemical-free    

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Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 24-31 doi: 10.1007/s11783-008-0024-x

Abstract: In the first six-mouth operation phase, the treatment performance of DT-RO system had been excellentThe removal rate of chemical oxygen demand (COD), total organic carbon (TOC), electrical conductivityEffective methods had been adopted to control membrane fouling, of which chemical cleaning is of utmost

Keywords： chemical cleaning     product     organic     nitrogen     Effective    

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Research on physical-chemical and biochemical combined technology in the treatment of refractory petrochemical

Tian Zhiyong,Tu Xiang,Song Yonghui,Xin Wang,Li Fayun

Strategic Study of CAE 2013, Volume 15, Issue 3,   Pages 80-87

Abstract:

The lab-scale and pilot-scale physical-chemical and biochemical combinedtechnology tests were carried out for the treatment of refractory petrochemical dry-spun acrylic fibershowed that the removal performance could be improved significantly by reasonable coupling of physical-chemicaland biochemical technologies in the treatment of acrylic fiber wastewater, the COD, ammonium and total

Keywords： refractory     dry-spun     acrylic fiber wastewater     physical-chemical     biochemical     combined treatment    

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behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing wastewater treatment

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1390-x

Abstract:

•PSBF performed better than PAC and PAM in CODCr removals.

Keywords： Practical wastewater treatment     Commercial coagulant/flocculant     Secondary coagulation-flocculation process     Chemical oxygen demand     Coagulation-flocculation mechanism    

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Application of membrane technology in chemical wastewater treatment

Song Weijie,Hang Xiaofeng and Wan Yinhua

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 67-75

Abstract: stage membrane concentration， pervaporation- distillation， etc. were designed and developed to treat chemicalThe combination of the integrated processes with the chemical production processes can effectively reduceCOD in the treated wastewater and realize the recovery of the valuable components in chemical wastewater， and consequently decrease the cost of wastewater treatment.Therefore， application of these processes could be helpful for the sustainable development of chemical

Keywords： integrated membrane technology     chemical wastewater     resource recovery     water reuse[收稿日期] 2014-09-25    

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Study of drinking water chemical security and influencing factors on Micro-polluted water treatment by

Chen Wei,Wang Leilei,Lin Tao,Luo Bin

Strategic Study of CAE 2008, Volume 10, Issue 5,   Pages 32-37

Abstract:

GAC will be effective for the advanced treatment in drinking water dueto the aggravating micro-pollution of drinking water source in China, but the chemical security of GAC

Keywords： drinking water     activated carbon     chemical security     by-products     microcystins    

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Water quality prediction of copper-molybdenum mining-beneficiation wastewater based on the PSO-SVR model

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1698-9

Abstract:

● Data acquisition and pre-processing for wastewater treatment were

Keywords： Chemical oxygen demand     Mining-beneficiation wastewater treatment     Particle swarm optimization     Support    

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Special issue on “Green chemical process and intensification”

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 11,   Pages 1533-1535 doi: 10.1007/s11705-022-2263-y

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Title Author Date Type Operation

Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites

Rongxin Zhang, Peinan Zhong, Hamidreza Arandiyan, Yanan Guan, Jinmin Liu, Na Wang, Yilai Jiao, Xiaolei Fan

Journal Article

Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Journal Article

Applying chemical sedimentation process in drinking water treatment plant to address the emergent arsenic

Pengfei LIN,Xiaojian ZHANG,Hongwei YANG,Yong LI,Chao CHEN

Journal Article

Increasing significance of advanced physical/chemical processes in the development and application ofsustainable wastewater treatment systems

RULKENS Wim

Journal Article

Alkaline modification of ZSM-5 catalysts for methanol aromatization: The effect of the alkaline concentration

Zhenhao Wei,Tengfei Xia,Minghui Liu,Qingsheng Cao,Yarong Xu,Kake Zhu,Xuedong Zhu

Journal Article

Using loose nanofiltration membrane for lake water treatment: A pilot study

Journal Article

Pesticide wastewater treatment using the combination of the microbial electrolysis desalination and chemical-production

Songwei Lin, Yaobin Lu, Bo Ye, Cuiping Zeng, Guangli Liu, Jieling Li, Haiping Luo, Renduo Zhang

Journal Article

Locally enhanced electric field treatment (LEEFT) for water disinfection

Jianfeng Zhou, Ting Wang, Cecilia Yu, Xing Xie

Journal Article

Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin

Journal Article

Research on physical-chemical and biochemical combined technology in the treatment of refractory petrochemical

Tian Zhiyong,Tu Xiang,Song Yonghui,Xin Wang,Li Fayun

Journal Article

behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing wastewater treatment

Journal Article

Application of membrane technology in chemical wastewater treatment

Song Weijie,Hang Xiaofeng and Wan Yinhua

Journal Article

Study of drinking water chemical security and influencing factors on Micro-polluted water treatment by

Chen Wei,Wang Leilei,Lin Tao,Luo Bin

Journal Article

Water quality prediction of copper-molybdenum mining-beneficiation wastewater based on the PSO-SVR model

Journal Article

Special issue on “Green chemical process and intensification”

Journal Article