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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

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 38-47 doi: 10.1007/s11783-009-0007-6

Abstract: In this study two types of biological contact oxidation processes (BCOP), a step-feed (SBCOP) unit andan inter-recycle (IBCOP) unit, were designed to investigate the treatment of heavily polluted riverDuring 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

Keywords： 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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Performance of a hybrid anaerobic-contact oxidation biofilm baffled reactor for the treatment of decentralized

Minmin LIU,Ying ZHAO,Beidou XI,Li’an HOU,Xunfeng XIA

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 598-606 doi: 10.1007/s11783-013-0576-2

Abstract: A novel hybrid anaerobic-contact oxidation biofilm baffled reactor (HAOBR) was developed to simultaneouslyIn addition, the high solid retention time of contact oxidation biofilm contributed to stable performance

Keywords： combination filler     contact oxidation biofilm     food wastewater     anaerobic baffled reactor    

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“ALL FREE” — a novel design concept of applying partial oxidation process to vehicle

Ling LIN, Wenshuang LIN, Qingbiao LI, Yao ZHOU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 207-212 doi: 10.1007/s11705-009-0240-3

Abstract: problem in transportation, this paper proposes the “ALL FREE” concept that applies partial oxidationprocess instead of the conventional complete oxidation to vehicle engines.the fuels are partially oxidized into corresponding chemical products, which, as a result, enable the processto be theoretically free of CO, while the heat output of the partial oxidation could drive the vehicleIt turned out that the partial oxidation of -butane to maleic anhydride has the most potential to meet

Keywords： oxidation process     CO     complete oxidation     ALL FREE     -butane    

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Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique

Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 227-232 doi: 10.1007/s11465-016-0395-9

Abstract:

The accumulated damage process of rolling contact fatigue (RCF) of plasma-sprayed coatings was investigatedAcoustic emission (AE) technique was introduced to monitor the RCF process of the coatings.AE signal characteristics were investigated to reveal the accumulated damage process.Result showed that the polished coating would resist the asperity contact and remit accumulated damage

Keywords： accumulated damage     spray coating     rolling contact fatigue     acoustic emission    

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Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1076-1083 doi: 10.1007/s11783-015-0770-5

Abstract: treated in a pilot plant for reclaimed water production through the denitrification biofilter (DNBF) processThe combined process demonstrated good removal performance of conventional pollutants, including concentrationsantibiotics and endocrine-disrupting chemicals) were also significantly removed during the proposed processAcute toxicity variations of the combined process were estimated by utilizing luminescent bacteria.The combined DNBF/O /BAF process is suitable for the advanced treatment of reclaimed water because it

Keywords： wastewater treatment     micropollutant removal     ozonation     biofiltration     toxicity    

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Degradation of refractory organics in concentrated leachate by the Fenton process: Central compositedesign for process optimization

Senem Yazici Guvenc, Gamze Varank

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1294-1

Abstract: . • Fenton oxidation was highly-efficient method for inert COD removal. • BOD5/COD ratio of leachateand optimization of process parameters to reach the maximum pollutant removal by using response surfaceThe Fenton process improves the biodegradability of the leachate NF concentrate, increasing the BOD5/The operational cost of the process is calculated to be 0.238 €/g CODremoved.The results indicate that the Fenton oxidation process is an efficient and economical technology in improvement

Keywords： Concentrated leachate     Fenton oxidation     Central composite design     Biodegradability     Inert COD    

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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: Chemical analysis, XRD spectra and surface properties evidenced the success of pillaring process.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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Oxidative treatment of aqueous monochlorobenzene with thermally-activated persulfate

Qishi LUO

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 188-194 doi: 10.1007/s11783-013-0544-x

Abstract: The oxidation of aqueous monochlorobenzene (MCB) solutions using thermally- activated persulfate hasThe influence of reaction temperature on the kinetics of MCB oxidation was examined, and the ArrenhiusEquation rate constants at 20°C, 30°C, 40°C, 50°C, and 60°C for MCB oxidation performance were calculatedThe most efficient molar ratio of persulfate/MCB for MCB oxidation was determined to be 200 to 1 andan increase in the rate constants suggests that the oxidation process proceeded more rapidly with increasing

Keywords： persulfate     monochlorobenzene     advanced oxidation process    

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The main anammox-based processes, the involved microbes and the novel process concept from the application

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1487-1

Abstract:

• The PNA, denitratation/anammox, and DAMO/anammox process are reviewed

Keywords： Anammox     Nitritation     Denitratation     Denitrifying anaerobic methane oxidation     Mainstream wastewater    

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Thin-liquid-film evaporation at contact line

Hao WANG, Zhenai PAN, Zhao CHEN

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 141-151 doi: 10.1007/s11708-009-0020-2

Abstract: When a liquid wets a solid wall, the extended meniscus near the contact line may be divided into three

Keywords： meniscus     thin film     contact line     disjoining pressure     evaporation    

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Degradation of 4-aminophenol by hydrogen peroxide oxidation using enzyme from Serratia marcescens as

SUN Min, YOU Yahua, DENG Shengsong, GAO Wenxia, YAO Risheng

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 95-98 doi: 10.1007/s11783-007-0018-0

Abstract: In the degradation process, 4-aminophenol was first converted to benzoquinone and NH, then organic acids

Keywords： degradation process     temperature     effecting     degradation     volume    

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An electrochemical process that uses an Fe

Chaojie Jiang, Lifen Liu, John C. Crittenden

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0860-z

Abstract: A bio-electrochemical fuel cell reactor with cathodic Fe /TiO generates electricity. It destroys recalcitrant pollutants in cathode chamber without photocatalysis. Fe /TiO generates reactive oxygenated species in the dark or under photocatalysis. Cathodic produced ROS (hydroxy radical/superoxide radical) can degrade tetracycline or dyes. Electricity generation is enhanced by semiconductor catalyzed cathodic degradation of pollutants. In this study, a new water treatment system that couples (photo-) electrochemical catalysis (PEC or EC) in a microbial fuel cell (MFC) was configured using a stainless-steel (SS) cathode coated with Fe /TiO . We examined the destruction of methylene blue (MB) and tetracycline. Fe /TiO was prepared using a chemical reduction-deposition method and coated onto an SS wire mesh (500 mesh) using a sol technique. The anode generates electricity using microbes (bio-anode). Connected via wire and ohmic resistance, the system requires a short reaction time and operates at a low cost by effectively removing 94% MB (initial concentration 20 mg·L ) and 83% TOC/TOC under visible light illumination (50 W; 1.99 mW·cm for 120 min, MFC-PEC). The removal was similar even without light irradiation (MFC-EC). The of the MFC-PEC system was approximately 0.675 kWh·m ·order , whereas that of the MFC-EC system was zero. The system was able to remove 70% COD in tetracycline solution (initial tetracycline concentration 100 mg·L ) after 120 min of visible light illumination; without light, the removal was 15% lower. The destruction of MB and tetracycline in both traditional photocatalysis and photoelectrocatalysis systems was notably low. The electron spin-resonance spectroscopy (ESR) study demonstrated that ·OH was formed under visible light, and ·O was formed without light. The bio-electricity-activated O and ROS (reactive oxidizing species) generation by Fe /TiO effectively degraded the pollutants. This cathodic degradation improved the electricity generation by accepting and consuming more electrons from the bio-anode.

Keywords： Bio-anode     Photocatalytic cathode     Fe0/TiO2     ESR     Dye and antibiotics     Advanced oxidation    

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Comparison and modeling of two biofilm processes applied to decentralized wastewater treatment

Guanglei QIU, Yonghui SONG, Peng YUAN, Liancheng XIANG, Jianfeng PENG, Ping ZENG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 412-420 doi: 10.1007/s11783-009-0141-1

Abstract: In order to control water pollution in the rapidly urbanizing South China area, biological contact oxidation(BCO) process and biological aerated filter (BAF) process were applied in a pilot-scale experiment forThe kinetic description of the COD removal process for BAF and BCO are Yang ZHANG,Zifu LI,Ibrahim B MAHMOOD

Keywords： biological contact oxidation     biological aerated filter     decentralized wastewater treatment     kinetic model    

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Modelling of dynamic contact length in rail grinding process

Shaodan ZHI,Jianyong LI,A. M. ZAREMBSKI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 242-248 doi: 10.1007/s11465-014-0305-y

Abstract: With grinding control unit holding the grinding stones, the rail grinding process has the characteristics, because the contact length is a critical parameter to measure the grinding capabilities of stones.Therefore the theoretical model for contact length is developed based on the geometrical analysis.calculating models are improved considering the grinding car’s dynamic behaviors during the grinding processparameters and the structure parameters into the calculation, which are suitable for revealing the process

Keywords： rail grinding     contact length     dynamic model     Hamiltonian system     grinding stone     rail grinding car    

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Computation and investigation of mode characteristics in nonlinear system with tuned/mistuned contact

Houxin SHE, Chaofeng LI, Qiansheng TANG, Hui MA, Bangchun WEN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 133-150 doi: 10.1007/s11465-019-0557-7

Abstract: This study derived a novel computation algorithm for a mechanical system with multiple friction contactThe procedure uses the incremental harmonic balance method to obtain the nonlinear parameters of the contactMoreover, this study analyzed the effects of the tuned and mistuned contact features on the nonlinear

Keywords： coupling vibration     nonlinear mode     original algorithm     contact interface    

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Title Author Date Type Operation

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

Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN

Journal Article

Performance of a hybrid anaerobic-contact oxidation biofilm baffled reactor for the treatment of decentralized

Minmin LIU,Ying ZHAO,Beidou XI,Li’an HOU,Xunfeng XIA

Journal Article

“ALL FREE” — a novel design concept of applying partial oxidation process to vehicle

Ling LIN, Wenshuang LIN, Qingbiao LI, Yao ZHOU,

Journal Article

Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique

Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO

Journal Article

Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG

Journal Article

Degradation of refractory organics in concentrated leachate by the Fenton process: Central compositedesign for process optimization

Senem Yazici Guvenc, Gamze Varank

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

Oxidative treatment of aqueous monochlorobenzene with thermally-activated persulfate

Qishi LUO

Journal Article

The main anammox-based processes, the involved microbes and the novel process concept from the application

Journal Article

Thin-liquid-film evaporation at contact line

Hao WANG, Zhenai PAN, Zhao CHEN

Journal Article

Degradation of 4-aminophenol by hydrogen peroxide oxidation using enzyme from Serratia marcescens as

SUN Min, YOU Yahua, DENG Shengsong, GAO Wenxia, YAO Risheng

Journal Article

An electrochemical process that uses an Fe

Chaojie Jiang, Lifen Liu, John C. Crittenden

Journal Article

Comparison and modeling of two biofilm processes applied to decentralized wastewater treatment

Guanglei QIU, Yonghui SONG, Peng YUAN, Liancheng XIANG, Jianfeng PENG, Ping ZENG,

Journal Article

Modelling of dynamic contact length in rail grinding process

Shaodan ZHI,Jianyong LI,A. M. ZAREMBSKI

Journal Article

Computation and investigation of mode characteristics in nonlinear system with tuned/mistuned contact

Houxin SHE, Chaofeng LI, Qiansheng TANG, Hui MA, Bangchun WEN

Journal Article