chlorine thm and natural organic matter from drinking water using microfiltration membranes and activated carbon in a gravitational system

Effect of chlorine on adsorption ultrafiltration treatment for removing natural organic matter in drink2

Ngày tải lên : 16/03/2014, 00:07

... membrane permeability, since chlorine was often dosed into raw water to control microbial growth and taste -and- odor-causing materials Also, the effect of particles in the system, such as IOPs and ... 845 2A, USA) and the TOC concentration was measured using a TOC analyzer (Sievers 8200, USA) In particular, the UV absorbance and the dissolved organic carbon (DOC) concentration of raw water ... (DR2500, USA) and reagent pillows When the prechlorination of raw water was applied in the experiments, the initial UV absorbance was deﬁned as the UV absorbance of raw water after chlorination and...

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Kinetics of natural organic matter as the initiator, promoter and inhibitor in water ozonation and its influences on the removal of ibuprofen

Ngày tải lên : 09/09/2015, 10:08

... promotion and inhibition rate constants of NOM using three NOM isolates, including Suwannee River humic and fulvic acids and a commercial humic acid (SigmaAldrich), and a natural water The influences ... Tokiman, Mr Mohamed Sidek bin Ahmad, Mr Chandrasegaran S/O Govindaraju and Mdm Tan Xiaolan for their generous help in creating a safe and conducive working ii environment, not forgetting Ms Hannah ... compounds acting as the initiator, promoter and inhibitor [26] Considering all reactions leading to the decomposition of ozone and assuming that all the radicals in the chain reactions are at steady...

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Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge

Ngày tải lên : 05/09/2013, 08:40

... PAC also decreased the adsorption capacity of PAC in the aeration tank References APPA-AWWA -Water Pollution Control Federation, (1989) Standard Methods for the Examination of Water and Wastewater, ... increased with increase in the amount of organic carbon on PAC The adsorption capacity of PAC after 4th incubation was almost the same as that in the aeration tank - 254 - Journal of Water and Environment ... PAC, PAC in the aeration tank, and PAC after 1st and 4th incubation The adsorption capacity of PAC decreased with incubation time In other word, the adsorption capacity of PAC increased with increase...

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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx

Ngày tải lên : 22/03/2014, 14:20

... give a precise standard deviation of a SPARC calculated value for any individual molecule, in general, SPARC can calculate the pKa for simple molecules such as oxy acids and aliphatic bases and acids ... University of California) Also, the SPARC calculator has been used for aiding industry (such as Pfizer, Merck, Pharmacia & Upjohn, etc.) in the areas of chemical manufacturing and pharmaceutical and pesticide ... For each reaction center and substituent, SPARC catalogs appropriate characteristic parameters Substituents include all non -carbon atoms and aliphatic carbon atoms contiguous to either the reaction...

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Báo cáo khoa học: "Organic matter and nitrogen dynamics in a mature forest of common beech in the Sierra de la Demanda, Spain" doc

Ngày tải lên : 08/08/2014, 14:21

... Tejera Genciana 10 Gilas 11 Valle Urbión 12 Vallegoria 13 Valhondo 14 Valhondo 15 Ardubira 16 Ardubira 17 Ticumbea 18 Ticumbea 19 Las Siemprevivas 20 Zarzabala 21 Zarzabala 22 Zarzabala 23 Las Zarras ... Mediterranean climatic zone forest of the Sierra de la Demanda, Burgos, Spain, Arid Soil Res Reab (1995) 201–207 [81] Santa Regina I., Tarazona T., Organic matter dynamics in beech and pine stand ... pyrenaica (Sierra de Gata, Salamanca), Studia Oecológica (1991) 147–158 [78] Santa Regina I., Rico M., Rapp M Gallego H .A. , Seasonal variation in nutrient concentration in leaves and branches...

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photochemistry of natural organic matter

Ngày tải lên : 13/11/2014, 10:31

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A typical small-scale chlorine leak and dispersion simulation in industrial facilities

Ngày tải lên : 05/09/2013, 16:11

... concentration change over time at points A and B From Figures and 10, maximum chlorine concentration at point A was greater than that of point B But at point A, chlorine dissipated after 40s and ... km) was exposed to chlorine for 45 minutes it would cause 5,000 deaths and 17,800 other casualties [4] Chlorine railcar releases in industrial and urban areas and its consequence analysis also ... field experiments and wind tunnel test data, using certain simplifications and assumptions, concentrations of heavy gas cloud and its main parameters are calculated A typical experience model...

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Báo cáo khoa học: "Validity of leaf areas and angles estimated in a beech forest from analysis of gap frequencies, using hemispherical photographs and a plant canopy analyzer" pot

Ngày tải lên : 08/08/2014, 14:21

... The K value for each ring was calculated in each case, first using the gap fraction averaged over azimuth (K ), a and then from the logarithmic average of the gap fractions obtained considering ... result in large errors [15], especially when the spatial variations of the leaf area index are noticeable Using a logarithmic average is equivalent to applying the random model locally, in several ... has variable effects, depending on leaf angle distribution For instance, in coniferous stands (Pinus banksiana Lamb and Picea mariana Mill.), Chen [5] reported a decrease of about % in leaf area...

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Báo cáo khoa hoc:"Body size reaction norms in Drosophila melanogaster: temporal stability and genetic architecture in a natural population" docx

Ngày tải lên : 09/08/2014, 18:21

... most cases an adaptive interpretation [27] For quantitative traits, investigations on natural populations have mainly demonstrated spatial genetic variations such as latitudinal clines in various ... the year and analysed two size-related traits, wing and thorax length We also calculated the wing/thorax ratio, which is related to wing loading and flight capacity and might be a direct target ... with banana traps in Grande Ferrade near Bordeaux (southern France) over different years A first collection was made in autumn 1992, and a second in 1997 from the same vineyard and same season...

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Báo cáo y học: "Estimation of stature from the foot and its segments in a sub-adult female population of North India" pps

Ngày tải lên : 10/08/2014, 21:24

... located in villages Nanakpur, Marranwala and Bassolan of Tehsil Kalka, District Panchkula in Haryana state of North India for allowing data collection Thanks are also due to the subjects who have ... divergent, and head in the Frankfurt Horizontal plane Thus, the participant was made to stand in an erect posture without any headgear or footwear being worn and stature was recorded using an anthropometer ... left and right feet The findings indicate that the measurements are reproducible and without significant technical error Data analysis The data were statistically analyzed using SPSS (Statistical...

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Báo cáo sinh học: "Association among quantitative, chromosomal and enzymatic traits in a natural population of Drosophila melanogaster" pptx

Ngày tải lên : 14/08/2014, 19:22

... (Sokal and Rohlf, 1981) The total sample was subdivided into classes: at least standard deviation above the mean (Class I), within standard deviation from the mean (Class II) and at least standard ... outstanding features of natural southern and northern populations of the species for these same characters MATERIALS AND METHODS A sample of 359 males and 259 females of Drosophila melanogasterwas ... Kusakabe and Mukai, 1984) This is explainable if it is assumed that natural selection is acting simultaneously upon several morphological and physiological traits that are largely genetically independent...

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Báo cáo y học: "Management of chest pain: exploring the views and experiences of chiropractors and medical practitioners in a focus group interview"

Ngày tải lên : 25/10/2012, 10:06

... chest pain, whether as a main presenting complaint or as a co-morbid condition The prevalence and clinical management, both diagnosis and treatment, of musculoskeletal chest pain in ambulatory ... chest pain In order for chiropractors to have a role in managing chest pain from the point of entry, they must acquire and demonstrate competence in diagnosing the complaint Chest pain can have a ... preclinical and clinical trial work along this line of inquiry Education and educational research What becomes obvious is that a lack of research has impact and implications for the education...

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Báo cáo y học: " High blood pressure, antihypertensive medication and lung function in a general adult population"

Ngày tải lên : 25/10/2012, 10:45

... medication within the last seven days before the examination was ascertained by an instrument for database-assisted online collection of medication data (IDOM) [19] The following substance classes ... Germany Authors’ contributions ES was responsible for the data analysis, interpretation of data and manuscript preparation JH and ES developed the statistical analysis plan SK, HS, SG, CM, MH, AP, ... and JH assisted in the interpretation and critical revision of the results SK, HS, CM, MH, H-EW and AP were responsible for the data All authors read and approved the final manuscript Competing...

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Báo cáo y học: "Prevalence of Overactive Bladder, its Under-Diagnosis, and Risk Factors in a Male Urologic Veterans Population"

Ngày tải lên : 25/10/2012, 11:35

... demographic data Mean age was 68 years old (quartile range: 59-77) The major ethnicities were European American (44%), African American (37%) and Hispanic American (11%) Table Demographics Characteristics, ... Herschorn S, Gajewski J, Schulz J and Corcos J A population-based study of urinary symptoms and incontinence: the Canadian Urinary Bladder Survey BJU Int 2008; 101:52 Milsom I, Abrams P, Cardozo L, ... J and Wein A How widespread are the symptoms of an overactive bladder and how are they managed? A population-based prevalence study BJU Int 2001; 87:760 Stewart W, Rooyen JV, Cundiff G, Abrams...

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Báo cáo y học: "A k2A-positive Klebsiella pneumoniae causes liver and brain abscess in a Saint Kitt’s ma"

Ngày tải lên : 26/10/2012, 09:53

... cephalosporins (cefazolin, cefotaxime, and cefepime), the fluoroquinolones (ciprofloxacin, levofloxacin), the aminoglycosides (amikacin, gentamicin, and tobramycin), meropenem, pipercillin/tazobactam ... drainage and biopsy of the largest liver abscess The biopsy demonstrated abundant acute and chronic inflammation with surrounding necrosis consistent with a liver abscess A sample aspirated from ... gene was amplified using the magA Forward Primer (5’-GGT GCT CTT TAC ATC ATT GC-3’) and magA Reverse Primer (5’-GCA ATG GCC ATT TGC GTT AG-3’) [7] A magA product was not detected in the strain To...

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Nitrogen Dynamics and Biomass Production in a Vertical Flow Constructed Wetland Cultivated with Forage Rice and their Mathematical Modeling

Ngày tải lên : 05/09/2013, 09:38

... the leaf area Roughly, the plant height increased until 120 days after transplantation, and thereafter a constant height was maintained in every case The leaf area index (LAI), however, increased ... Some forcing functions were included in the model The daily average temperature and daily irradiation were obtained from a weather station near the experimental site (Japan Meteorological Agency) ... shown in Fig In the 0.6 m3/(m2∙day) case, the water level was increased from early October, and clogging was presumed However, the discharge rate was maintained, and we concluded that the effect...

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A CFD analysis of transport phenomena and electrochemical reactions in a tubular-shaped PEM fuel cell

Ngày tải lên : 05/09/2013, 14:58

... the data would be proprietary in nature and very limited data are available in the open literature There are several reasons that make the tubular design more advantageous than the planar one ... conditions are specified at all external boundaries of the computational domain as well as boundaries for various mass and scalar equations inside the computational domain 2.3.1 Inlets The inlet values ... reaction propagates at the rate demanded by the current The activation overpotential can be divided into the anode and cathode overpotentials The anode and cathode activation overpotentials are...

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An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs

Ngày tải lên : 05/09/2013, 16:10

... reasonable accuracy In a recent study, Cho et al [12] investigated the effect of a gap in the inclined rib on heat transfer in a square duct and reported that a gap in the inclined rib accelerates ... Enhancing Performance of Solar air heater Proceedings of XVII National and VI ISHME/ASME Heat and Mass Transfer Conference, IGCAR, Kalpakkam India 2004; Jan 05-07 [2] Han J C “Heat transfer and ... Tariq, A. , Keshav Kant and Panigrahi, P K., “Heat transfer enhancement using an internally threaded tube”, Proceeding of the 4th ISHMT-ASME and 15th National Conference on Heat and Mass transfer...

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Using Cooperative Learning to Integrate Thinking and Information Technology in a Content.doc

Ngày tải lên : 06/09/2013, 05:10

... pause in computer use, students can analyze what they have learned and done, share information with others, and plan their next steps After using computers, students can again analyze and share ... teachers for information, and instead can work together to find and share knowledge All the same benefits of cooperative learning presented above in the normal classroom apply equally in information ... relations Thinking skills Self-esteem Enjoyment Cooperative Learning and Thinking and Creativity Cooperative learning is believed to promote thinking and creativity in many ways (Hythecker, Dansereau,...

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Tài liệu Finding, Filtering, and Sorting Rows in a DataTable ppt

Ngày tải lên : 14/12/2013, 13:15

... Quantity " + "FROM [Order Details] " + "ORDER BY OrderID"; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); ... FindFilterAndSortDataRows.cs illustrates how to find, filter, and sort DataRow objects */ using System; using System. Data; using System. Data.SqlClient; class FindFilterAndSortDataRows { public static void Main() { SqlConnection ... that in Chapter 13, "Using DataView Objects." Listing 11.3 shows a program that finds, filters, and sorts DataRow objects Listing 11.3: FINDFILTERANDSORTDATAROWS.CS /* FindFilterAndSortDataRows.cs...

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