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2004年世界工程师大会

作者： Asean Eng Corazon de los Reyes Romero BSCE, BSSE MSSE F.PSSE Aguado St.San Miguel Manila 1005 PhilippinesMemberProfessional Regulatory Board for Sanitary Engineering Professional Regulation Commission PRC Building P.ParedesSampalocManila Philippines ChairPTC International Relations Committee Borard AdviserPhilippine Technological Council Website:www.ptc.org.ph SecretaryPhilippine Federation of Professiional Association Program Chair and Board DirectorPhilippine Association of Professional Regulatory Board Aguado St.San Miguel Manila 1005 PhilippinesMemberProfessional Regulatory Board for Sanitary Engineering Professional Regulation Commission PRC Building P.ParedesSampalocManila Philippines ChairPTC International Relations Committee Borard AdviserPhilippine Technological Council Website:www.ptc.org.ph SecretaryPhilippine Federation of Professiional Association Program Chair and Board DirectorPhilippine Association of Professional Regulatory Board Aguado St.San Miguel Manila 1005 PhilippinesMemberProfessional Regulatory Board for Sanitary Engineering Professional Regulation Commission PRC Building P.ParedesSampalocManila Philippines ChairPTC International Relations Committee Borard AdviserPhilippine Technological Council Website:www.ptc.org.ph SecretaryPhilippine Federation of Professiional Association Program Chair and Board DirectorPhilippine Association of Professional Regulatory Board Aguado St.San Miguel Manila 1005 PhilippinesMemberProfessional Regulatory Board for Sanitary Engineering Professional Regulation Commission PRC Building P.ParedesSampalocManila Philippines ChairPTC International Relations Committee Borard AdviserPhilippine Technological Council Website:www.ptc.org.ph SecretaryPhilippine Federation of Professiional Association Program Chair and Board DirectorPhilippine Association of Professional Regulatory Board Aguado St.San Miguel Manila 1005 PhilippinesMemberProfessional Regulatory Board for Sanitary Engineering Professional Regulation Commission PRC Building P.ParedesSampalocManila Philippines ChairPTC International Rela

＜正＞sanitary and Environmental engineering:Relevanee and Environmental Coneerns has an impaet in the

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GREEN SYNTHESIS OF ANTIBACTERIAL CHITOSAN FILMS LOADED WITH SILVER NANOPARTICLES

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Chinese Journal of Polymer Science 2013年第7期31卷 984-993页

作者： Neama A. Reiad Omar E. Abdel Salam Ehab F. Abadir Farid A. Harraz sanitary & Environmental engineering Department Housing & Building National Research Center Department of Chemical engineering Faculty of EngineeringCairo University Advanced Materials Technology Department Central Metallurgical R & D Institute

An eco-friendly chemical reduction method was successfully used for the preparation of chitosan （CTS） composite films loaded with silver nanoparticles （AgNPs） by self assembly method using poly（ethylene glycol） as both reducing and stabilizing agent. UV-Vis spectra of the prepared chitosan loaded silver nanoparticles （CTSLAg） films reveal that full reduction of silver ions to silver nanoparticles takes place at 90 ℃. The effect of reaction conditions on the silver nanoparticles formation was investigated using UV-Vis spectrophotometer. The morphology of the films was tested by scanning electron microscopy （SEM）. The DSC curves showed that the CTSLAg film had a favorable compatibility and heat stability. AgNPs were confirmed by XRD and UV-Vis spectroscopy. The TEM findings revealed that the silver nanoparticles synthesized were spherical in shape with uniform dispersal, and by increasing CTS：PEG ratio larger silver nanoparticles could be obtained. The results of antibacterial study reveal that the prepared nanoeomposite films exhibited potential inhibition.

关键词： Chitosan Silver nanoparticles Antibacterial activity.

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Comparative study of polyhydroxyalkanoates production from acidified and anaerobically treated brewery wastewater using enriched mixed microbial culture

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Journal of Environmental Sciences 2019年第4期31卷 137-146页

作者： Pravesh Tamang Rintu Banerjee Stephan K?ster Regina Nogueira Institute for sanitary engineering and Waste Management Leibniz Universitat Hannover Welfengarten 1D-30167 HannoverGermany Indian Institute of Technology Kharagpur Department of Agricultural and Food Engineering721302 KharagpurIndia

The production of polyhydroxyalkanoates(PHA) from wastewaters using microbial mixed cultures(MMC) has been attracting increased interest because of PHA's biodegradability characteristics. Production of PHA by an MMC enriched with PHA-accumulating bacteria was compared using anaerobically treated and acidified brewery wastewaters under various feeding strategies, namely pulse and batch feed addition. To obtain an enriched MMC, a sequencing batch reactor was inoculated with activated sludge fed with acetate and subjected to aerobic dynamic feeding. The enriched MMC was able to accumulate PHA up to 72.6% of cell dry weight(CDW) with pulse addition of acetate controlled by the dissolved oxygen(DO) concentration in the reactor. In a batch accumulation experiment with acetate,the PHA content achieved(28.5% CDW) was less than that of the pulse feeding strategy with the same amount of acetate(～2000 mg C/L). Using anaerobically treated and acidified brewery wastewater fed in pulses, the maximum PHA accumulated by the enriched MMC was similar for both wastewaters(45% CDW), in spite of the higher volatile fatty acid concentration in acidified brewery wastewater. The pulse feed addition controlled by the DO concentration was difficult to implement for wastewater as compared to acetate because the difference in DO concentration between substrate availability and depletion was low. For the batch addition of acidified wastewater, a slightly lower PHA content(39%CDW) was obtained. These results show that both brewery wastewaters can be utilized for PHA production with a similar maximum PHA storage capacity.

关键词： Polyhydroxyalkanoates PHA-accumulating bacteria Microbial mixed culture Brewery wastewater Aerobic dynamic feeding Pulse feeding and batch feeding

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Interference of iron as a coagulant on MIB removal by powdered activated carbon adsorption for low turbidity waters

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Journal of Environmental Sciences 2013年第8期25卷 1575-1582页

作者： Ferreira Filho SIDNEY SECKLER Marchetto MARGARIDA Alves Laganaro ROSEMEIRE Department of Hydraulic and Environmental engineering Polytechnic School University of Sao Paulo Department of sanitary and Environmental engineering University of Mato Grosso Companhia de Saneamento Basico do Estado de So Paulo(SABESP)

Powered activated carbon （PAC） is widely used in water treatment plants to minimize odors in drinking water. This study investigated the removal of 2-methylisoborneol （MIB） by PAC adsorption, combined with coagulation using iron as a coagulant. The adsorption and coagulation process were studied through different case scenarios of jar tests. The analysis evaluated the effect of PAC dosing in the liquid phase immediately before or after the coagulant addition. Ferric sulphate was used as the coagulant with dosages from 10 to 30 mg/L, and PAC dosages varied from 10 to 40 mg/L. The highest MIB removal efficiency （about 70%） was achieved without the coagulant addition and with the highest PAC dosage （40 mg/L）. Lower MIB removal efficiencies were observed in the presence of coagulant, showing a clear interference of the iron precipitate or coagulant in the adsorption process. The degree of interference of the coagulation process in the MIB removal was proportional to the ratio of ferric hydroxide mass to the PAC mass. For both cases of PAC dosing, upstream and downstream of the coagulant injection point, the MIB removal efficiency was similar. However, MIB removal efficiency was 15% lower when compared with experiments without the coagulant application. This interference in the MIB adsorption occurs potentially because the coagulant coats the surface of the carbon and interferes with the MIB coming in contact with the carbon＇s surface and pores. This constraint requires an increase of the PAC dosage to provide the same efficiency observed without coagulation.

关键词： adsorption 2-methylisoborneol (MIB) coagulation activated carbon

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Green synthesis of bentonite-supported iron nanoparticles as a heterogeneous Fenton-like catalyst:Kinetics of decolorization of reactive blue 238 dye

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Water Science and engineering 2020年第4期13卷 286-298页

作者： Ahmed Khudhair Hassan Ghayda Yaseen Al-Kindi Dalal Ghanim Environment and Water Directorate Ministry of Science and TechnologyBaghdad 10070Iraq sanitary and Environmental Branch Civil Engineering DepartmentUniversity of TechnologyBaghdad 10009Iraq

This study aimed to synthesize green tea nano zero-valent iron(GT-NZVI)and bentonite-supported green tea nano zero-valent iron(BGT-NZVI)nanoparticles using green tea extracts in an environmentally sustainable *** was used as a support material because it disperses and stabilizes GT-NZVI,and it helps to reduce the cost,increase the adsorption capacity of GT-NZVI,and decrease the optimum amount of GT-NZVI used in Fenton-like oxidation.A scanning electron microscope,an atomic force microscope,and a Fourier transform infrared spectroscope were used to characterize GT-NZVI and B-GT-NZVI,while the zeta potential was measured to evaluate the stability of iron *** decolorization kinetics of reactive blue 238(RB 238)dye in the aqueous phase in the Fenton-like oxidation process were investigated as *** effects of various experimental conditions such as reaction time,dosages of catalysts,concentration of H2O2,temperature,addition of inorganic salts,and other parameters were *** results show that the oxidative degradation efficiencies of RB 238 dye catalyzed by GT-NZVI and B-GT-NZVI were 93.5%and 96.2%,respectively,at the optimum reaction conditions as follows:c(H2O2)¼5 mmol/L,r(GT-NZVI)¼0.5 g/L or r(B-GT-NZVI)¼0.5 g/L,c(RB 238 dye)¼0.05 mmol/L,and pH¼2.5 at 180 *** best catalytic performance was exhibited when B-GT-NZVI was *** kinetic models were employed,and the second-order model was found to be the best model representing the experimental kinetic data of RB 238 *** value of activation energy decreased from 38.22 kJ/mol for GT-NZVI to 14.13 kJ/mol for *** indicates that the effect of B-GT-NZVI in decreasing the energy barrier is more pronounced than that of the GT-NZVI catalyst,leading to improved Fenton-like oxidation processes.©2020 Hohai *** and hosting by Elsevier *** is an open access article under the CC BY-NC-ND license(http://***/licenses/by-nc-nd/4.0/).

关键词： Green synthesis Bentonite-supported iron nanoparticles Azo dye Fenton-like process Kinetics

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Leaching characteristics of heavy metals during cement stabilization of fly ash from municipal solid waste incinerators

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Frontiers of Environmental Science & engineering 2008年第3期2卷 358-363页

作者： Shunwen LIANG Jianguo JIANG Yan ZHANG Xin XU Environment and sanitary Management Department Shenzhen 518001China Department of Environment Science and engineering Tsinghua UniversityBeijing 100084China

The leaching characteristics of heavy metals in products of cement stabilization of fly ash from a municipal solid waste incinerator were investigated in this *** stabilization of heavy metals such as Cd,Pb,Cu,and Zn in fly ash from such incinerators was examined through the national standard method in China based on the following factors:additive quantity of cement and Na_(2)S,curing time,and pH of leaching *** results showed that as more additives were used,less heavy metals were leached except for Pb,which is sensitive to pH of the leachate,and the worse effect was observed for *** mass ratio of cement to fly ash=10% is the most appropriate parameter according to the national standard *** the hydration of cement was basically finished,stabilization of heavy metals did not vary after curing for 1 *** mixtures of cement and fly ash had excellent adaptability to environmental *** pH of leachate was maintained at 7 when pH of leaching liquor varied from 3 to 11.

关键词： municipal solid waste(MSW) fly ash heavy metal solidification and stabilization cement

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Streamflow prediction in ungauged catchments by using the Grunsky method

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International Soil and Water Conservation Research 2023年第4期11卷 700-712页

作者： Bruno K.Marchezepe AndréAlmagro AndréS.Ballarin Paulo Tarso S.Oliveira Department of Hydraulics and sanitary engineering São Carlos School of EngineeringUniversity of São PauloSão CarlosSPBrazil Faculty of engineering Architecture and Urbanism and GeographyFederal University of Mato Grosso do SulMS79070-900Brazil

Establish a reliable rainfall-runoff relation capable of predicting runoff in ungauged basins is a matter of interest across the world for a long time and has been taking importance during the past *** approaches,hydrological models and machine learning techniques have been used to estimate ***,returning some simplicity to the predictions might be necessary for practical *** this paper,we re-introduce *** approach,developed in the early 1900s to predict runoff from values of precipitation on a two-equations ***,we analyze the Grunsky generalized method applied for 716 Brazilian catchments,on an interannual and monthly ***,we established the best method to find the rainfall-runoff relation coefficient for each ***,we evaluate the performance of the method on a local scale,i.e.,catchment by ***,we analyze the method of regionalization,by grouping the catchments into six hydrologically similar *** local scale,the Kling-Gupta Efficiency(KGE)values range from 0.87 to 0.93 on the interannual scale and is greater than 0.50 on the monthly *** the regionalized approach,KGE varies from 0.60 to 0.84 on an interannual *** also found suitable KGE values on a monthly scale,with more than 22%of catchments with KGE greater than 0.50,being the best performances in the Non-seasonal and Extremely-wet groups,and the worst performance in the Dry *** findings indicate that Grunsky approach is suitable to predict streamflow for Brazilian catchments on interannual and monthly *** simple and easy-to-use equation presents a reliable alternative to more complex methods to compute runoff by only using rainfall data.

关键词： Regionalization Hydrological group Temporal scale Tropical basins

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Graphdiyne as a novel nonactive anode for wastewater treatment:A theoretical study

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Chinese Chemical Letters 2021年第9期32卷 2819-2822页

作者： Guoshuai Liu Yanan Zhou Qun Yan Yasmina Doekhi-Bennani School of Environmental and Civil engineering Jiangnan UniversityWuxi 214122China School of Chemical engineering Sichuan UniversityChengdu 610065China Department of Water Management Section Sanitary EngineeringDelft University of TechnologyPO Box 50482600 GADelftthe Netherlands

Electrochemical oxidation of water to produce highly reactive hydroxyl radicals(·OH)is the dominant factor that accounts for the organic compounds removal efficiency in water *** an emerging carbon-based material,the investigation of electrocatalytic of water to produce·OH on Graphdiyne(GDY)anode is firstly evaluated by using first-principles *** theoretical calculation results demonstrated that the GDY anode owns a large oxygen evolution reaction(OER)overpotential(η^(OER)=1.95 V)and a weak sorptive ability towards oxygen evolution intermediates(HO^(*),not·OH).The high Gibbs energy change of HO^(*)(3.18 e V)on GDY anode makes the selective production of·OH(△G=2.4 eV)thermodynamically *** investigation comprises the understanding of the relationship between OER to electrochemical advanced oxidation process(EAOP),and give a proof-of-concept of finding the novel and robust environmental EAOP anode at quantum chemistry level.

关键词： First-principle Graphdiyne Hydroxyl radical Nonactive

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An autotrophic nitrogen removal process:Short-cut nitrification combined with ANAMMOX for treating diluted effluent from an UASB reactor fed by landfill leachate

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Journal of Environmental Sciences 2010年第5期22卷 777-783页

作者： Jie Liu Jian'e Zuo Tang Yang Shuquan Zhu Sulin Kuang Kaijun Wang Environmental Simulation and Pollution Control State Key Joint Laboratory Department of Environmental Science and Engineering Tsinghua University Beifing 100084 China School of Chemical and Environmental engineering China University of Mining and Technology (Beifing) Beifing 100083 China Liulitun sanitary Landfill Beijing 100094 China

A combined process consisting of a short-cut nitrification （SN） reactor and an anaerobic ammonium oxidation upflow anaerobic sludge bed （ANAMMOX） reactor was developed to treat the diluted effluent from an upflow anaerobic sludge bed （UASB） reactor treating high ammonium municipal landfill *** SN process was performed in an aerated upflow sludge bed （AUSB） reactor （working volume 3.05 L）,treating about 50% of the diluted raw *** ammonium removal efficiency and the ratio of NO 2 N to NOx-N in the effluent were both higher than 80%,at a maximum nitrogen loading rate of 1.47 kg/（m 3 ·day）.The ANAMMOX process was performed in an UASB reactor （working volume 8.5 L）,using the mix of SN reactor effluent and diluted raw wastewater at a ratio of 1：*** ammonium and nitrite removal efficiency reached over 93% and 95%,respectively,after 70-day continuous operation,at a maximum total nitrogen loading rate of 0.91 kg/（m 3 ·day）,suggesting a successful operation of the combined *** average nitrogen loading rate of the combined system was 0.56 kg/（m 3 ·day）,with an average total inorganic nitrogen removal efficiency 87%.The nitrogen in the effluent was mostly *** results provided important evidence for the possibility of applying SN-ANAMMOX after UASB reactor to treat municipal landfill leachate.

关键词： landfill leachate short-cut nitrification anaerobic ammonia oxidation autotrophic nitrogen removal

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Near-infrared-reflection spectroscopy as measuring method to determine the state of the process for automatic control of anaerobic digestion

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International Journal of Agricultural and Biological engineering 2013年第2期6卷 63-72页

作者： Andrea Stockl Daniel Löffler Hans Oechsner Thomas Jungbluth Klaus Fischer Martin Kranert State Institute of Agricultural engineering and Bioenergy University of Hohenheim70593 Stuttgart-PlieningenGermany Institute for sanitary engineering Water Quality and Solid Waste ManagementUniversity of StuttgartBandtäle 270569 StuttgartGermany State Institute of Agricultural engineering Livestock System EngineeringUniversity of Hohenheim70593 Stuttgart-PlieningenGermany

A recently developed control strategy for the anaerobic digestion process requires secure knowledge about the state of the *** near infrared reflection spectroscopy(NIRS),provides the possibility to determine process parameters of the anaerobic digestion process online and directly at the *** investigate if the NIRS measurements can successfully be used for the characterization of the state of the process within the control strategy the control was operated on two experimental *** NIR spectra were recorded during the *** values of the process parameters(mainly concentrations of organic acids)obtained by NIRS differ from the values of the chemical analyses during the *** the state of the process is categorized equally on the basis of both measurement *** can consequently be stated that NIRS is expected to meet the requirements of the control strategy.

关键词： near-infrared-reflection spectroscopy(NIRS) state of the process automatic process control anaerobic digestion biogas

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