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cyclohexane 2

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Phenolic compounds removal by wet air oxidation based processes

Linbi Zhou, Hongbin Cao, Claude Descorme, Yongbing Xie

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-017-0970-2

Abstract: Wet air oxidation (WAO) and catalytic wet air oxidation (CWAO) are efficient processes to degrade organic

Keywords： Wet air oxidation     Catalytic wet air oxidation     Phenolic compounds     Heterogeneous catalysts     Mechanism    

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Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage

Milan Malhotra, Anurag Garg

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1305-2

Abstract: . • Reaction pathways for thermal hydrolysis and wet oxidation are proposed.., thermal hydrolysis (TH) and wet oxidation (WO) on sewage sludge to promote resource recovery.

Keywords： Hydrothermal pretreatment     Reaction kinetics     Reaction pathway     Sewage sludge     Thermal hydrolysis     Wet oxidation    

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Catalytic wet air oxidation of phenol, nitrobenzene and aniline over the multi-walled carbon nanotubes

Shaoxia YANG,Yu SUN,Hongwei YANG,Jiafeng WAN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 436-443 doi: 10.1007/s11783-014-0681-x

Abstract: Wet air oxidation (WAO) is one of effective technologies to eliminate hazardous, toxic and highly concentratedused as catalysts in the absence of any metals to investigate the catalytic activity in the catalytic wetair oxidation (CWAO) of phenol, nitrobenzene (NB) and aniline at the mild operating conditions (reaction

Keywords： catalytic wet air oxidation (CWAO)     carbon nanotubes (CNTs)     phenol     nitrobenzene     aniline    

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Wastewater treatment by catalytic wet air oxidation process over Al-Fe pillared clays synthesized using

Halima Sassi, Gwendoline Lafaye, Hédi Ben Amor, Abdelaziz Gannouni, Mohamed Razak Jeday, Jacques Barbier-Jr

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-017-0971-1

Abstract: The microwave-derived Al-Fe pillared clays have been tested for catalytic wet air oxidation (CWAO) of

Keywords： Water     Catalytic wet air oxidation     Pillared clays     Microwave     Phenol    

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Survey of thermal comfort in residential buildings under natural conditions in hot humid and cold wet

Changhai PENG

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 503-511 doi: 10.1007/s11709-010-0095-1

Abstract: These, however, are often difficult to comply with, particularly in hot humid and cold wet seasons inThe range of acceptable temperatures in hot humid and cold wet Nanjing is between 14.14°C and 29.42°C

Keywords： thermal comfort     naturally conditioned     hot humid     cold wet     Nanjing    

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of carboxymethyl cellulose on morphology of hydroxyapatite nanoparticles as prepared with one-step wet

Ruiqiang LIU,Rattan LAL

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 804-812 doi: 10.1007/s11783-015-0785-y

Abstract: Nano-sized apatite particles (nAP) synthesized with carboxymethyl cellulose (CMC) have shown great application potentials in in situ heavy metal remediation. However, differences in CMC’s properties effects on the size of nAP produced are not well understood. In this paper, two types of CMC, with respective molecular weights (MW) of ~120000 and ~240000 Dalton or respective polymerization degrees of 500 (CMC-500) and 1050 (CMC-1050), were studied in a concentration range of 0.05%–0.5% (w/w) for nAP synthesis. Morphology of the particles was characterized with transmission electron microscopy (TEM). Results showed that 0.05% CMC-500 solution gave an average particle size of 148.7±134.9 nm, 0.25% CMC-500 solution produced particles of 21.8±20.4 nm, and, 0.5% CMC-500 solution contained particles of 15.8±7.7 nm. In comparison, 0.05% CMC-1050 solution produced nanoparticles of 6.8±3.2 nm, 0.25% CMC-1050 produced smaller nAP of 4.3±3.2 nm, and 0.5% CMC-1050 synthesized the smallest nanoparticles in this study, with an average diameter of 3.0±2.1 nm. Chemical composition of the products was identified with X-ray diffraction (XRD) as pure hydroxyapatite. Interactions between nAP and CMC were discussed with help of attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopic data. This study showed that CMC at higher concentration as well as higher MW facilitated to produce finer nanoparticles, showing that nAP size could be manipulated by selecting appropriate CMC MW and/or applying appropriate CMC concentration.

Keywords： nanotechnology     nanoparticles     apatite     carboxymethyl cellulose (CMC)     particle size    

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Performance evaluation on the pollution control against wet weather overflow based on on-site coagulation

Zongqun Chen, Wei Jin, Hailong Yin, Mengqi Han, Zuxin Xu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1400-z

Abstract: The pollution caused by wet weather overflow in urban drainage systems is a main factor causing blackeningIn addition, the relation of wet weather overflow rate and concentration of pollution load on the on-siteThis work provides scientific guidance to address wet weather overflow in terminal drainage pipes.

Keywords： Wet weather overflow     On-site coagulation/flocculation     Fast removal of particulate pollutants    

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Removing ammonia from air with a constant pH, slightly acidic water　spray wet scrubber using recycled

Ahmad Kalbasi Ashtari, Amir M. Samani Majd, Gerald L. Riskowski, Saqib Mukhtar, Lingying Zhao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0869-3

Abstract: fertilizer Increased air velocity decreased NH removal and increased NH collection Previous research on wetA bench-scale spray wet scrubber treated 20 ppmv NH /air mixture in a countercurrent contact chamber.

Keywords： Ammonia     Spray wet scrubber     Slightly acidic scrubbing solution     Controlled pH     Removal efficiency    

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Preparation of rare-earth metal complex oxide catalysts for catalytic wet air oxidation

LI Ning, LI Guangming, YAO Zhenya, ZHAO Jianfu

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 190-195 doi: 10.1007/s11783-007-0033-1

Abstract: Catalytic wet air oxidation (CWAO) is one of the most promising technologies for pollution abatement.

Keywords： torch-atomic emission     Brunauer     Catalytic     process     stability    

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Air-side heat transfer and friction characteristics of biofouled evaporator under wet conditions

Hui PU, Guoliang DING, Xiaokui MA, Haitao HU, Yifeng GAO,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 306-312 doi: 10.1007/s11708-009-0067-0

Abstract: The effects of biofouling on air-side heat transfer and friction characteristics under wet conditions

Keywords： finned tube     evaporator     fouling     heat transfer     friction    

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Two-step gate-recess process combining selective wet-etching and digital wet-etching for InAlAs/InGaAs Article

Ying-hui ZHONG, Shu-xiang SUN, Wen-bin WONG, Hai-li WANG, Xiao-ming LIU, Zhi-yong DUAN, Peng DING, Zhi JIN

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1180-1185 doi: 10.1631/FITEE.1601121

Abstract: A two-step gate-recess process combining high selective wet-etching and non-selective digital wet-etchingSelective wet-etching is validated in the gate-recess process of InAlAs/InGaAs InP-based HEMTs, whichThe non-selective digital wet-etching process is developed using a separately controlled oxidation/de-oxidationDigital wet-etching is repeated for two cycles with about 3 nm InAlAs barrier layer being etched off.

Keywords： High electron mobility transistors (HEMTs)     Gate-recess     Digital wet-etching     Selective wet-etching    

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Research on Treatment Technology for the Industrial Wastewaters With High Concentration in China

Sun Peishi,Qian Biao,Hong Pinjie,Harada Yoshiaki,Yang Ying,Hao Yukun

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 68-73

Abstract:

By using the introduced CWO technology and its 200 L/d plant, more than 10 kinds of industrial wastewaters with high concentration in China, such as the waste liquor of coking, the black liquor of paper making, the waste mother liquor of bio-pharmacy and so on, were treated in this research. The results showed that the CWO technology and its equipment had a good applicability for treating the industrial wastewaters with high concentration in China. One set of CWO — 20 m3/d industrial plant, as a demonstration engineering installation of CWO technology, was independently designed, made and operated in Kunming city. During the running test, the CWO - 20 m3/d plant displayed a favorable treatment capability for the bio-degradedly difficult industrial wastewaters with high concentration. For the treatment of the waste liquor from coking and the black liquor of paper making, more than 99 % of CODCr and NH3 - N in the wastewater could be removed. The CWO -20 m3/d plant could be run continuously and stably. The treated wastewater could meet the discharge standard and the treatment process with CWO technology showed up a good economic advantage.

Keywords： catalytic wet oxidation process (CWO)     industrial wastewaters with high concentration     technology process    

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Pore-scale simulation of water/oil displacement in a water-wet channel

Jin Zhao, Guice Yao, Dongsheng Wen

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 803-814 doi: 10.1007/s11705-019-1835-y

Abstract: Water/oil flow characteristics in a water-wet capillary were simulated at the pore scale to increaseduring a water displacement process, an initial continuous oil phase can be snapped off in the water-wet

Keywords： VOF     pore scale     immiscible displacement     EOR     snap-off     Ca    

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Thermal Effect Analysis of Frictional Disk in Speeding Wet Clutch

Hong Yue,Liu Jin,Wang Yungen

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 55-60

Abstract:

Multi-frictional disks are employed to transmit the torque in speeding wet clutch, and the oil thicknessAs oil combined with a-hydrocarbon or polyester is getting widely used as lubricant and the speeding wetestablished the thermal analysis model for investigating the behavior of frictional disks in speeding wet

Keywords： speeding wet clutch     thermal analysis     Reynolds equation     power-law fluid model     roughness    

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The development of roadside green swales in the Chinese Sponge City Program: Challenges and opportunities

Frontiers of Engineering Management   Pages 566-581 doi: 10.1007/s42524-023-0267-z

Abstract: Roadside green swales have emerged as popular stormwater management infrastructure in urban areas, serving to mitigate stormwater pollution and reduce urban surface water discharge. However, there is a limited understanding of the various types, structures, and functions of swales, as well as the potential challenges they may face in the future. In recent years, China has witnessed a surge in the adoption of roadside green swales, especially as part of the prestigious Sponge City Program (SCP). These green swales play a crucial role in controlling stormwater pollution and conserving urban water resources by effectively removing runoff pollutants, including suspended solids, nitrogen, and phosphorus. This review critically examines recent research findings, identifies key knowledge gaps, and presents future recommendations for designing green swales for effective stormwater management, with a particular emphasis on ongoing major Chinese infrastructure projects. Despite the growing global interest in bioswales and their significance in urban development, China’s current classification of such features lacks a clear definition or specific consideration of bioswales. Furthermore, policymakers have often underestimated the adverse environmental effects of road networks, as reflected in existing laws and planning documents. This review argues that the construction and maintenance of roadside green swales should be primarily based on three critical factors: Well-thought-out road planning, suitable construction conditions, and sustainable long-term funding. The integration of quantitative environmental standards into road planning is essential to effectively address the challenge of pollution from rainfall runoff. To combat pollution associated with roads, a comprehensive assessment of potential pollution loadings should be carried out, guiding the appropriate design and construction of green swales, with a particular focus on addressing the phenomenon of first flush. One of the major challenges faced in sustaining funds for ongoing maintenance after swale construction. To address this issue, the implementation of a green finance platform is proposed. Such a platform would help ensure the availability of funds for continuous maintenance, thus maximizing the long-term effectiveness of green swales in stormwater management. Ultimately, the findings of this review aim to assist municipal governments in enhancing and implementing future urban road designs and SCP developments, incorporating effective green swale strategies.

Keywords： grass swale     infiltration swale     bioswale     wet swale     sponge city    

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Title Author Date Type Operation

Phenolic compounds removal by wet air oxidation based processes

Linbi Zhou, Hongbin Cao, Claude Descorme, Yongbing Xie

Journal Article

Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage

Milan Malhotra, Anurag Garg

Journal Article

Catalytic wet air oxidation of phenol, nitrobenzene and aniline over the multi-walled carbon nanotubes

Shaoxia YANG,Yu SUN,Hongwei YANG,Jiafeng WAN

Journal Article

Wastewater treatment by catalytic wet air oxidation process over Al-Fe pillared clays synthesized using

Halima Sassi, Gwendoline Lafaye, Hédi Ben Amor, Abdelaziz Gannouni, Mohamed Razak Jeday, Jacques Barbier-Jr

Journal Article

Survey of thermal comfort in residential buildings under natural conditions in hot humid and cold wet

Changhai PENG

Journal Article

of carboxymethyl cellulose on morphology of hydroxyapatite nanoparticles as prepared with one-step wet

Ruiqiang LIU,Rattan LAL

Journal Article

Performance evaluation on the pollution control against wet weather overflow based on on-site coagulation

Zongqun Chen, Wei Jin, Hailong Yin, Mengqi Han, Zuxin Xu

Journal Article

Removing ammonia from air with a constant pH, slightly acidic water　spray wet scrubber using recycled

Ahmad Kalbasi Ashtari, Amir M. Samani Majd, Gerald L. Riskowski, Saqib Mukhtar, Lingying Zhao

Journal Article

Preparation of rare-earth metal complex oxide catalysts for catalytic wet air oxidation

LI Ning, LI Guangming, YAO Zhenya, ZHAO Jianfu

Journal Article

Air-side heat transfer and friction characteristics of biofouled evaporator under wet conditions

Hui PU, Guoliang DING, Xiaokui MA, Haitao HU, Yifeng GAO,

Journal Article

Two-step gate-recess process combining selective wet-etching and digital wet-etching for InAlAs/InGaAs

Ying-hui ZHONG, Shu-xiang SUN, Wen-bin WONG, Hai-li WANG, Xiao-ming LIU, Zhi-yong DUAN, Peng DING, Zhi JIN

Journal Article

Research on Treatment Technology for the Industrial Wastewaters With High Concentration in China

Sun Peishi,Qian Biao,Hong Pinjie,Harada Yoshiaki,Yang Ying,Hao Yukun

Journal Article

Pore-scale simulation of water/oil displacement in a water-wet channel

Jin Zhao, Guice Yao, Dongsheng Wen

Journal Article

Thermal Effect Analysis of Frictional Disk in Speeding Wet Clutch

Hong Yue,Liu Jin,Wang Yungen

Journal Article

The development of roadside green swales in the Chinese Sponge City Program: Challenges and opportunities

Journal Article