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Journal of Environmental Sciences 2010年第11期22卷 1657-1665页

作者： Fei Feng Zhenliang XU Xiaohuan Li Wenting You Yang Zhen State Key Laboratory of Chemical Engineering East China University of Science and Technology (ECUST) Shanghai 200237 China. Membrane Science and Engineering R & D Lab Chemical Engineering Research Center ECUST Shanghai 200237 China College of Food Science & Technology Shanghai Ocean University Shanghai 201306 China

The performance of combined fenton oxidation and membrane bioreactor （MBR） process for the advanced treatment of an effluent from an integrated dyeing wastewater treatment plant was evaluated. The experimental results revealed that under the optimum fenton oxidation conditions （initial pH 5, H 2 O 2 dosage 17 mmol/L, and Fe^ 2＋ 1.7 mmol/L） the average total organic carbon （TOC） and color removal ratios were 39.3% and 69.5% after 35 min of reaction, respectively. Results from Zahn-Wallens Test also represented that fenton process was effective to enhance the biodegradability of the test wastewater. As for the further purification of MBR process, TOC removal capacity was examined at different hydraulic retention times （HRT） of 10, 18 and 25 hr. Under the optimum HRT of 18 hr, the average TOC concentration and color of the final MBR effluent were 16.8 mg/L and 2 dilution time, respectively. The sludge yield coefficient was 0.13 g MLSS/g TOC and TOC degradation rate was 0.078 kg TOC/（m ^3 ·day）. The final effluent of MBR can meet the reuse criteria of urban recycling water – water quality standard for miscellaneous water consumption GBT18920-2002.

关键词： dyeing wastewater fenton oxidation membrane bioreactor Zahn-Wallens Test

fenton oxidation of 2,4- and 2,6-dinitrotoluene and acetone inhibition

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Frontiers of Environmental Science & Engineering 2008年第3期2卷 326-332页

作者： Yiliang HE Bin ZHAO Joseph B.HUGHES Sung Soo HAN School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

The performances and kinetic parameters of fenton oxidation of 2,4-and 2,6-dinitrotoluene(DNT)in water-acetone mixtures and explosive contaminated soil washing-out solutions were investigated at a laboratory *** experimental results show that acetone can be a significant hydroxyl radical scavenger and result in serious inhibition of fenton oxidation of 2,4-and 2,*** no serious inhibition was found in contaminated soil washing-out solutions,longer reaction time was needed to remove 2,4-and 2,6-DNT completely,mainly due to the competition of hydroxyl *** oxidation of 2,4-and 2,6-DNT fit well with the first-order kinetics and the presence of acetone also reduced DNT’s degradation *** on the comparison and matching of retention time and ultraviolet(UV)spectra between high performance liquid chromatography(HPLC)and standards,the following reaction pathway for 2,4-DNT primary degradation was proposed:2,4-DNT→2,4-dinitro-benzaldehyde→2,4-dinitrobenzoic acid→1,3-dinitrobenzene→3-nitrophenol.

关键词： dinitrotoluenes fenton oxidation acetone inhibition degradation kinetic reaction pathway

Feasibility of bioleaching combined with fenton oxidation to improve sewage sludge dewaterability

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Journal of Environmental Sciences 2015年第2期27卷 37-42页

作者： Changgeng Liu Panyue Zhang Chenghua Zeng Guangming Zeng Guoyin Xu Yi Huang School of Resources and Environmental Engineering Panzhihua University Key Laboratory of Environmental Biology and Pollution Control (Hunan University) Ministry of Education College of Environmental Science and Engineering Hunan University

A novel joint method of bioleaching with fenton oxidation was applied to condition sewage sludge. The specific resistance to filtration（SRF） and moisture of sludge cake（MSC） were adopted to evaluate the improvement of sludge dewaterability. After 2-day bioleaching, the sludge p H dropped to about 2.5 which satisfied the acidic condition for fenton ***, the SRF declined from 6.45 × 1010 to 2.07 × 1010s2/g, and MSC decreased from91.42% to 87.66%. The bioleached sludge was further conditioned with fenton oxidation. From an economical point of view, the optimal dosages of H2O2 and Fe2＋were 0.12 and 0.036 mol/L,respectively, and the optimal reaction time was 60 min. Under optimal conditions, SRF,volatile solids reduction, and MSC were 3.43 × 108s2/g, 36.93%, and 79.58%, respectively. The stability and settleability of sewage sludge were both improved significantly. Besides,the results indicated that bioleaching-fenton oxidation was more efficient in dewatering the sewage sludge than traditional fenton oxidation. The sludge conditioning mechanisms by bioleaching-fenton oxidation might mainly include the flocculation effects and the releases of extracellular polymeric substances–bound water and intercellular water.

关键词： Sewage sludge Bioleaching fenton oxidation Dewaterabilty

A Molecular Mechanism of fenton oxidation Degradation of m-Xylene

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Chinese Journal of Structural Chemistry 2018年第9期37卷 1363-1370页

作者：赵加民袁迎周如金 Chemical Engineering College Guangdong University of Petrochemical Technology

Density functional theory（DFT） quantum chemical method was used to study the process of meta-xylene fenton oxidation. The EHOMO energies of meta-xylene molecules are higher, so they have better ability to provide electron and prone to the nucleophilic reaction. M-xylene mainly reacts with OH free radical in addition reactions. And the position of C（6） is most likely to react with the OH free radical, rather than the C（3）, which is the most difficult to occur. According to all the above results, the most likely reaction mechanism of advanced oxidation degradation of meta-xylene is determined.

关键词： molecular simulation fenton oxidation meta-xylene reaction mechanism

Effects of Influencing Factors on fenton oxidation of Antibiotic Pharmaceutical Wastewater by a Statistical Design Approach

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Journal of Donghua University(English Edition) 2013年第1期30卷 26-33页

作者：赵俊杰祁佩时刘云芝林娜 State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology School of Municipal and Environmental Engineering Harbin Institute of Technology

A series of batch-scale experiments were completed to investigate the effects of operational parameters on chemical oxygen demand (COD) removal by fenton reagent for antibiotic pharmaceutical wastewater (APW). The significance of five operational factors including the mass ratio of H2O2/COD (g/g), the mole ratio of H2O2/Fe2+ (mol/mol), initial pH, oxidation temperature T, and reaction time t were evaluated statistically by Box-Behnken design (BBD). It was found that the five parameters were all significant to the COD removal efficiency by t-test, as well as the interactions between mass ratio/reaction time and oxidation temperature/reaction. The optimal COD removal efficiency (89.50%) was achieved when the mass ratio of H2O2/COD and the mole ratio of H2O2/Fe2+ were 3.00 and 5.00 respectively, with pH value of 3.68 at 298K for 72min reaction. A quadratic regression model with 0.9907 regression coefficient (R2) was developed which had good agreement to the experimental data.

关键词： fenton oxidation response surface methodology (RSM) Box-Behnken design (BBD) antibiotic pharmaceutical wastewater (APW)

Treatment of Oil Field Wastewater after Chemical Flooding by fenton oxidation Combined with Biodegradation

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Meteorological and Environmental Research 2015年第3期6卷 37-40页

作者： Chen Qingguo Liu Mei College of Marine Science and Technology Zhejiang Ocean University

Wastewater after chemical flooding is difficult to be treated by biological methods due to the residual chemicals in the wastewater. fenton oxidation, which has been widely applied to detoxifying hazardous organic compounds and improving the biodegradability of these compounds, can solve this problem. So, in this paper, fenton oxidation was used to enhance the biodegradability of the wastewater after chemical flooding. The op- timum operating conditions for the fenton oxidation process were 2.5 g/L Fe2 ＋ , 600 mg/L H202 and 30 rain of treatment time. The wastewater pre- treated by fenton oxidation was treated by aerobic activated sludge. It was found that a small amount of H202 can significantly increase both the biodegradation rate and extent of the wastewater. The effluent CODc, and HPAM contents were 260 and 94 mg/L respectively after the aerobic bio- logical process with the biodegradation time of 24 h. After fenton oxidation combining with biodegradation, the total CODc, removal efficiency was up to 90%, and polymer and oil degrading efficiencies were 95% and 92% respectively.

关键词： fenton oxidation Wastewater Oil field Chemical flooding China

Fe/C micro electrolysis and fenton oxidation process for the removal of recalcitrant colored pollutants from mid-stage pulping effluent

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Journal of Bioresources and Bioproducts 2018年第3期3卷 118-122页

作者： Mingyou Liu Lu Wang Xianying Xiao Zhibin He South China University of Technology Guangzhou510640China Limerick Pulp and Paper Center University of New BrunswickFrederictonCanada

The pulp and paper industry produces a large amount of colored effluent in the pulping,bleaching,and papermaking *** wastewater from the pulp washing and bleaching stages is also known as mid-stage pulping effluent,which is difficult to treat due to its toxicity and dark *** paper reports a novel Fe/C micro-electrolysis process for the treatment of the mid-stage pulping *** show that this process is effective in removing the color under optimal reaction *** electron microscopy(SEM)and Fourier transform infrared spectroscopy(FTIR)analyses indicate that the colored pollutants were removed from the wastewater in the Fe/C micro-electrolysis by adsorption,collection and filtration *** Fe2+ions produced in the micro-electrolysis process functioned as fenton’s reagents with H2O2 in the follow-up oxidation stage,which enhanced the removal of chemical oxygen demand(COD)and color.

关键词： Pulping wastewater middle-stage effluent Fe/C micro-electrolysis fenton oxidation lignin colored pollutants COD

Treatment Processes of Leachate from a Landfill by Advanced oxidation fenton and Ozone-UV

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Journal of Environmental Protection 2021年第10期12卷 755-766页

作者： Díaz Rodea Sebastián Solís Correa Hugo Eduardo Gómez Salazar Sergio Giacomán Vallejos Germán Méndez Novelo Roger Iván Barceló Quintal Icela Dagmar Department of Basic Sciences Autonomous Metropolitan University Azcapotzalco Mexico City Mexico Department of Chemical Engineering University Center for Exact Sciences and Engineering University of Guadalajara Guadalajara Jalisco México Faculty of Engineering Autonomous University of Yucatán Mérida Yucatán Mexico

In this paper it is presented the results of advanced oxidation of leachates from a technified sanitary landfill located in the State of Querétaro, Mexico. One characteristic of already stabilized leachates from sanitary landfills like this case, is their difficult degradation, mainly because the organic matter contained is recalcitrant. For the samples collect, four sites were selected, where three points per site were sampled, measuring at each site the parameters: temperature, pH, conductivity, redox potential (ORP) and dissolved oxygen (DO) and leachate samples were collected. On the other hand, the Chemical Oxygen Demand (COD) of crude leachates, leachates acidified and leachates oxidized by fenton reagent and Ozone-UV combined were analyzed. COD was used to monitor the degradation kinetics. With the results, the ArcGIS software was applied to study the distribution of temperature, dissolved oxygen and COD mainly in the leachate lagoon. For the application of fenton reagent in the crude leachate oxidation, the pH was first adjusted and Fe2+/H2O2 ratio was optimized. The efficiency of Ozone-UV treatments was studied through COD degradation kinetics. The graphs of in (Ci/Co) vs time, showed that the kinetic processes are of order one, with very acceptable regression coefficients (R2) and extraordinarily similar speed constants (K). With fenton oxidation, the highest percentage of COD degradation was achieved and with Ozone-UV oxidation, it was possible to practically degrade all the COD.

关键词： Landfill Leachate fenton oxidation Ozone-UV oxidation Degradation Kinetics

Degradation of refractory organics in concentrated leachate by the fenton process: Central composite design for process optimization

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Frontiers of Environmental Science & Engineering 2021年第1期15卷 47-62页

作者： Senem Yazici Guvenc Gamze Varank Department of Environmental Engineering Yildiz Technical UniversityDavutpasa CampusEsenlerIstanbul 34220Turkey

The primary aim of this study is inert COD removal from leachate nanofiltration concentrate because of its high concentration of resistant organic *** this framework,this study focuses on the treatability of leachate nanofiltration concentrate through fenton oxidation and optimization of process parameters to reach the maximum pollutant removal by using response surface methodology(RSM).Initial pH,Fe2+concentration,H_(2)O_(2)/Fe^(2+)molar ratio and oxidation time are selected as the independent variables,whereas total COD,color,inert COD and UV254 removal are selected as the *** to the ANOVA results,the R^(2) values of all responses are found to be over 95%.Under the optimum conditions determined by the model(pH:3.99,Fe^(2+):150 mmol/L,H_(2)O_(2)/Fe^(2+):3.27 and oxidation time:84.8 min),the maximum COD removal efficiency is determined as 91.4%by the *** color,inert COD and UV254 removal efficiencies are determined to be 99.9%,97.2%and 99.5%,respectively,by the model,whereas the total COD,color,inert COD and UV254 removal efficiencies are found respectively to be 90%,96.5%,95.3%and 97.2%,experimentally under the optimum operating *** fenton process improves the biodegradability of the leachate NF concentrate,increasing the BOD5/COD ratio from the value of 0.04 to the value of *** operational cost of the process is calculated to be 0.238€/g COD_(removed).The results indicate that the fenton oxidation process is an efficient and economical technology in improvement of the biological degradability of leachate nanofiltration concentrate and in removal of resistant organic pollutants.

关键词： Concentrated leachate fenton oxidation Central composite design Biodegradability Inert COD

A Metal-organic Framework Constructed from a Rare Rod-shaped Secondary Building Unit and Its Highly Efficient Photocatalytic Activity

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Chinese Journal of Structural Chemistry 2020年第8期39卷 1475-1482,1360页

作者：徐涵潘兆瑞 School of Chemistry and Chemical Engineering Key Laboratory of Inorganic Functional MaterialsHuangshan UniversityHuangshan 245041China School of Environmental Science Nanjing Xiaozhuang UniversityNanjing 211171China

A new Cu(Ⅱ)coordination polymer,{[Cu3(oba)2(μ^3-OH)2(H2O)2].6H2O}n(H2 oba=4,4’-oxydibenzoic acid),was synthesized by the solvothermal route and characterized by IR,TGA and *** complex crystallizes in the monoclinic system,space group P21/c with a=5.957(6),b=29.746(3),c=9.351(7)A,β=125.709(4)°,V=1345.4(2)A3,Z=2,C28H36Cu3O20,Mr=883.09,Dc=1.913 g/cm^3,F(000)=782,μ=2.427 mm-1,R=0.0780 and wR=0.1688 for 3120 observed reflections with I>2σ(I).The complex forms a 3D framework based on rare infinite rod-shaped secondary building units(SBUs),and C-H…πinteractions play an important role in stabilizing the 3D supramolecular *** shows excellent catalytic activities for the degradation of safranin O(SO)and methylene blue(MB)dyes in aqueous solution under UV light ***,the apparent rate constants have also been investigated.

关键词： Jahn Teller effect dye degradation photocatalytic activity fenton oxidation