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2012 International Conference on Environment,Energy and Biotechnology（ICEEB 2012）

作者： Israa Abdulwahab Al-Baldawi Siti Rozaimah Sheikh Abdullah Fatihah Suja Nurina Anuar Mushrifah Idris Department of Civil and Structural Engineering Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Tasik Chini Research Centre Faculty of Science and Technology Universiti Kebangsaan Malaysia43600 UKM BangiSelangorMalaysia

The aim of this paper was to investigate the ability of small water fern of Azolla pinnata to survive when exposed to diesel *** experimental work of phytoremediation was conducted in a green house in the outdoor conditions for an observation period of 10 ***,the small water fern,Azolla pinnata was exposed to 10,20,30,40,and 50 mL/L (V Diesel /V Water).After one day of exposure,Azolla pinnata died for all diesel concentration due to high level of diesel *** to that,Azolla pinnata was exposed to another set of diesel concentrations of 0.5,1,3,and 7 mL/*** 10 days of exposure,the fern can only survive with concentrations of 0.5,1 and 3 mL/L but died in 7 mL/L at the end of 10 *** the end of exposure period 20% of Azolla pinnata were withered at lower concentration of 0.5 mL/L and 100% withered at higher concentration of 7 mL/L.

关键词： Phytoremediation,preliminary test,Diesel,Azolla pinnata

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Reaction Crystallization of Struvite in a Continuous Draft Tube Magma (DTM) Crystallizer with a Jet Pump Driven by Recirculated Mother Solution

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Procedia engineering 2012年 42卷 1540-1551页

作者： A. Mazienczuk A. Matynia K. Piotrowski B. Wierzbowska Wroclaw University of Technology Faculty of Chemistry Wybrzeze Wyspianskiego 27 50–370 Wroclaw POLAND Department of Chemical & Process Engineering Silesian University of Technology ks. M. Strzody 7 44–101 Gliwice POLAND

Reaction crystallization of struvite from water solutions containing 1.0 mass % of phosphate(V) ions by means of magnesium and ammonium ions action was investigated experimentally. The process was carried out in a DTM type crystallizer with liquid type jet pump in temperature 298 K assuming stoichiometric conditions. Struvite crystals of mean size L m from 4 to 22.4 μm were produced depending on pH (pH from 9 to 11) and mean residence time of suspension in a crystallizer vessel (τ from 900 to 3600 s). In such process conditions linear growth rate of struvite crystals, calculated with SIG MSMPR kinetic model, decreases 2-time with the increase in pH level and 3-time with the elongation of mean residence time of suspension in a crystallizer, namely from 7.15 x 10 –9 m/s (pH 9, τ 900 s) to 1.16 x 10 –9 m/s (pH 11, τ 3600 s). Nucleation rate changed within the 9.3 x 10 8 – 9.0 x 10 9 1/(sm 3 ) range. Crystal product of the best formed crystals, which maximal sizes reached 90 μm while content of crystals of sizes below 3 μm was ca. 12%, corresponded to pH 9 and mean residence time of suspension in a crystallizer 3600 s.

关键词： Struvite crystal size distribution reaction crystallization kinetics continuous DTM type crystallizer jet pump

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Continuous Reaction Crystallization of Struvite from Diluted Aqueous Solutions of Phosphate (V) Ions in DT MSMPR Crystallizer

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Procedia engineering 2012年 42卷 313-322页

作者： A. Kozik A. Matynia K. Piotrowski Wroclaw University of Technology Faculty of Chemistry Wybrzeze Wyspianskiego 27 50–370 Wroclaw POLAND Department of Chemical & Process Engineering Silesian University of Technology ks. M. Strzody 7 44–101 Gliwice POLAND

Experimental work concerning continuous reaction crystallization of struvite MgNH4PO 4 .6H2O from diluted aqueous solutions of phosphates(V) (1.0 mass % of PO4) is presented. Laboratory tests were carried out in a DT MSMPR type crystallizer in 298 K assuming stoichiometric ratio of the reagents. Influence of pH (8.5 – 10) and mean residence time of suspension in a crystallizer (900 – 3600 s) on product crystal size distribution, their size homogeneity and process kinetics was identified. Struvite crystals of mean size from ca. 23 to ca. 86 m, of diverse homogeneity (CV 62 – 90%) were produced. The largest crystal sizes of acceptable homogeneity corresponded to pH 8.5 and mean residence time elongated up to 3600 s. Under these conditions struvite nucleation rate did not exceed 2.9 10 7 1/(s m 3 ) according to SIG MSMPR kinetic model. Linear growth rate of struvite crystals within the parameter ranges tested varied from 4.33 10 –9 to 1.75 10 –8 m/s.

关键词： Struvite reaction crystallization continuous DT MSMPR crystallizer crystal size distribution SIG MSMPR kinetic model

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Effect of Sulphate(VI) Ions on CSD of Struvite–Neural Network Model of Continuous Reaction Crystallization process in a DT MSMPR Crystallizer

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Procedia engineering 2012年 42卷 521-531页

作者： K. Piotrowski N. Hutnik A. Matynia Department of Chemical & Process Engineering Silesian University of Technology ks. M. Strzody 7 44–101 Gliwice POLAND Wroclaw University of Technology Faculty of Chemistry Wybrzeze Wyspianskiego 27 50–370 Wroclaw POLAND

Complex effect of sulphate(VI) ions on the continuous struvite (MgNH4PO4 6H2O, MAP) reaction crystallization process kinetics in DT MSMPR crystallizer and its final results was modeled numerically using artificial neural networks. Network was used as a multidimensional correlation between selected technological control process parameters (three inputs representing [SO4 2– ]RM: 0.05 – 1.0 mass %, pH: 9–11 and mean residence time: 900 – 3600 s) and 43 size–channels of struvite product CSD (43 outputs corresponding to L within the 5.0 10 –7 –1.8 10 –4 m range). Network model reproduces experimental, nonlinear ln n ( L ) data correctly and accurately. Presenting CSD in a form of population density distribution ln n ( L ) made direct theoretical insight and identification of potential various kinetic mechanisms dominating for required <[SO4 2– ]RM, pH, > vectors in various L ranges possible.

关键词： Struvite phosphprus recycling sulphate(VI) ions reaction crystallization continuous DT MSMPR crystallizer crystal size distribution neural network model

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Enhancement of Biobutanol production by butyric acid addition using Clostridium saccharoperbutytacetonicum N1-4 (ATCC 13564)

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Biotechnology 2012年第6期11卷 326-332页

作者： Al-Shorgani, N.K.N. Kalil, M.S. Ali, E. Yusofl, W.M.W. Hamid, A.A. School of Bioscience and Biotechnology Faculty of Science and Technology University Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia Department of Chemical and Process Engineering Faculty of Engineering University Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia Department of Microbiology Faculty of Applied Sciences Taiz University 6803 Taiz Yemen

Butanol is an important industrial chemical and has gained attention as an important fuel because of its advantages of being less corrosive and water tolerant as compared to the ethanol. This study revealed the effects of butyric acid as an additive on growth and Acetone-butanol-ethanol (ABE) production using batch culture of Clostridium saccharoperbutylacetonicum Ni-4. Different combinations of glucose and butyric acid were studied to finalize the best productive ratio for ABE and butanol production. The highest ABE and butanol production was obtained when 4 g L-1of butyric acid was used in the presence of 30 g L of glucose. The inhibitory effects of butyric acid on bacterial growth were also investigated using C. saccharoperbutylacetonicum Ni-4 and mild inhibitory effects were found at high butyric acid concentration. On the other hand, no linear correlation between butyric acid and butanol production was observed. Production ofl7.76gL -1butanolwithaproducthityofoi5gL h 'from 4g L ' of butyric acid proedthe ability of C. saccharoperbutylacetonicum N1-4 to be tolerant to the certain concentration of butyric acid for the enhanced butanol production Butyric acid was not only contributing as an additive or stimulating agent to the butanol pathway but also was being utilized as a co-substrate. Enhanced butanol production using growing cells of C. saceharoperbutylacetonicum NL4 in the presence of specific concentration of butyric acid (4 g L -1butyric acid) as a co-substrate with glucose can be carried out without any remarkable inhibition to bacterial growth. © 2012 Asian Network for Scientific Information.

关键词： Clostridium

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Corrigendum to “CO 2 removal with ‘switchable’ versus ‘classical’ ionic liquids” [Sep. Purif. Technol. 97 (2012) 42–50]

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Separation and Purification technology 2013年 107卷 340-340页

作者： E. Privalova M. Nurmi M.S. Marañón E.V. Murzina P. Mäki-Arvela K. Eränen D. Yu Murzin J.-P. Mikkola Åbo Akademi University Process Chemistry Centre Laboratory of Industrial Chemistry and Reaction Engineering FI-20500 Turku/Åbo Finland Åbo Akademi University Laboratory of Paper Coating and Converting FI-20500 Turku/Åbo Finland Umeå University Faculty of Science and Technology Department of Chemistry Chemical-Biological Center Technical Chemistry Umeå Sweden

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Effect of metal carbonates on succinate production by Actinobacillus succinogenes in batch fermentation

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Biotechnology: An Indian Journal 2012年第10期6卷 327-331页

作者： Sawisit, Apichai Seesan, Supaluk Kanchanatawee, Sunthorn Jantama, Sirima Suvarnakuta Jantama, Kaemwich School of Biotechnology Institute ofAgricultural Technology Suranaree University of Technology 111 University Avenue Suranaree Muang district Nakhon Ratchasima 30000 Thailand Division of Process Engineering Master Professional of Physical-Chemical Process Paul SabatierUniversity Toulouse 31000 France Division of Biopharmacy Faculty of Pharmaceutical Sciences Ubon Ratchathani University Warinchamrap Ubon Ratchathani 34190 Thailand

In the present study, the effect of metal carbonates (CaCO3, MgCO3, MnCO3, Na2CO3 and K2CO3) on the growth and succinate production by Actinobacillus succinogenes 130ZT was examined in 100-mL anaerobic bottles using a glucose-based medium. Initial glucose concentrations and metal carbonate in the form of its chlorides, sulphates, and phosphate were studied. The strain initially produced 7.75 g/L of succinate with a yield of 68%from 15 g/L of glucose within 24 h. However, when process optimization was employed, 10.85 g/L of succinate was produced in the same medium supplemented with 60 mMMgCO3with a succinate yield of 85%. As a result, the titer and yield of succinate were increased by 40% and 31%, respectively. Based on this study, the supplementation of MgCO3 in the cultured medium suggests an effective strategy for improving the succinate production in A. succinogenes 130ZT. © 2012 Trade Science Inc. - INDIA.

关键词： Glucose

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Ionic Liquids in Extractive Distillation Solvent Selection, Conceptual process Design, and Pilot Plant Validation

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Chemie Ingenieur Technik 2013年第9期85卷

作者： A. B. de Haan G. W. Meindersma E. Quijada‐Maldonado M. T. G. Jongmans J. P. Gutiérrez Hernandez B. Schuur Eindhoven University of Technology Department of Chemical Engineering and Chemistry/SPS P.O. Box 513 NL‐5600 MB Eindhoven The Netherlands Santiago University of Chile Av. Libertador Bernardo O'Higgins Santiago Chile AkzoNobel Research Development & Innovation Postbus 10 NL‐7400 AA Deventer The Netherlands University of Twente Faculty of Science and Technology Sustainable Process Technology Group P.O. Box 217 NL‐7500 AE Enschede The Netherlands

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Co-pyrolysis of Coal and Agricultural Waste

Co-pyrolysis of Coal and Agricultural Waste

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2012 3rd International Conference on Chemistry and chemical engineering

作者： Akinwale Aboyade Adelaja Osibote Ademola Rabiu Marion Carrier Johann Grgens Environmental & Process Systems Engineering Research Group Chemical Engineering DepartmentUniversity of Cape TownRondebosch 7701South Africa Energy and Nuclear Sciences Research Group Faculty of Applied SciencesCape Peninsula University of TechnologyCape Town 8000South Africa Process Engineering Departments Stellenbosch UniversityStellenbosch 7602South Africa

Co-utilizing of coal and agricultural plant waste in existing coal based gasification/synthesis installations is widely recognized as a potentially realistic starting scenario for the production of second generation ***,fixed-bed gasifiers are currently the most commercially successful gasifiers used for coal gasification and are known produce significant quantities of pyrolysis derived tar along with syngas..In order to investigate the pyrolysis of coal-biomass blends,a pressurized fixed-bed pyrolyzer was employed with coal-biomass blends of 100:0 95:5,50:50,and 0:100 wt%.Sugarcane bagasse was selected as the biomass feedstock because of its relative prevalence in South *** this study,the effect of adding biomass to coal on the distribution of pyrolysis products were evaluated with attention focused on volatile product yields and *** was determined that synergistic or non-additive interactions between biomass and coal impacted on the ability to predict the yields of specific liquid condensate products.

关键词： Sugarcane bagasse,Coal,Co-pyrolysis,Co-gasification,Updraft,Fixed bed,Condensate,Volatiles

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Household greywater quantity and quality in Sana'a, Yemen

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Electronic Journal of Geotechnical engineering 2012年 17 H卷 1025-1034页

作者： Al-Mughalles, Mohammed Hasan Rahman, Rakmi Abdul Suja', Fatihah Binti Mahmud, Mastura Jalil, Nurul'ain Abd Department of Civil and Structural Engineering Faculty of Engineering Universiti Kebangsaan Malaysia 43650 UKM Bangi Selangor Malaysia Department of Chemical and Process Engineering Faculty of Engineering Universiti Kebangsaan Malaysia 43650 UKM Bangi Selangor Malaysia Department of Civil and Structural Engineering Faculty of Engineering Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia Earth Observation Center Faculty of Social Sciences and Humanities Universiti Kebangsaan Malaysia 43650 UKM Bangi Selangor Malaysia Centre for Environment and Natural Resources Faculty of Science and Technology Universiti Kebangsaan Malaysia 43650 UKM Bangi Selangor Malaysia

The quantity and quality of greywater that produced by household, in capital Sana'a was determined for 13 days. The daily greywater quantity was 259 liter/day and generation ratio was 87 % of total in-house consumed water. The percentages of contribution of each source of greywater were 37 %, 32 %, 18 %, and 13 % for kitchen sink, hand washing basin, bathroom shower, and washing machine, respectively. Physical greywater qualities of total suspended solids (TSS) and turbidity were 511 mg/l and 619 FAU, respectively. The results show that chemical properties of pH, nitrate (NO3-), ammonia as nitrogen (NH4-N), and phosphate (PO4-) were 6, 98 mg/l, 11 mg/l, and 16 mg/l, respectively. Biological characteristics of biological oxygen demand (BOD5), and chemical oxygen demand (COD) were 518 mg/l and 2000 mg/l, respectively. Samples analyses also demonstrated that the faecal coliforms (FC) are 19×106 N/100 ml as microbial indicator. Household greywater qualities are not within the guidelines of WHO and FAO. © 2012 ejge.

关键词： Oxygen

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