fraction bound to organic matter

Leaching of arsenic in response to organic matter contamination in groundwater treatment practice

Ngày tải lên : 05/09/2013, 09:38

... of organic matter because the arsenate/arsenite oxidation/reduction potential is +135 mV (Oremland and Stolz, 2003) Organic matter is ubiquitous in natural waters and typically found at TOC (total ... impacted in response to organic matter inclusion in the feed water In comparison to the humic acid, the simulated wastewater organic matter was found to be more unfavorable to the arsenic removal ... Method 200.8) were applied The organic matter concentrations in stock solution and in other water samples were determined by using a total organic carbon analyzer (TOC-VCSH, Shimadzu), which allowed...

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388
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Báo cáo hóa học: "Organic-skinned inorganic nanoparticles: surface-confined polymerization of 6-(3-thienyl) hexanoic acid bound to nanocrystalline TiO2" docx

Ngày tải lên : 21/06/2014, 00:20

... leading to defective incorporation into a target substrate [13] Photochemical and chemical polymerization [14,15] in a solution phase led to a successful deposition of polythiophenes onto nanostructured ... nanoparticles As a model of the organic/ inorganic hybrid system, TiO2 and THA were chosen as the inorganic nano-substrate and the organic monomer that will be polymerized into PTHA, respectively All ... adsorption, electrodes were repeatedly washed in acetonitrile to remove any loosely bound species The PTHA-adsorbed electrodes prepared from the surface -bound polymerization or direct adsorption were...

5
279
0

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

... of PAC in bioreactors such as aeration tank might be caused by the adsorption of the metabolites of microorganisms, other dissolved organic matters (DOM) and biofilm attached onto PAC However, ... fed into each reactor at a flow rate of l d-1 for 24 h as a shock loading Effluent was sampled periodically from each reactor for about days The amount of 3,5 DCP adsorbed by PAC in each reactor ... Control reactor (without PAC) 40 PACT reactor 30 20 10 0 24 48 72 96 120 144 Time (hours) Figure 3,5-DCP concentration during and after the shock loading of 3,5-DCP onto PACT and control reactors -...

10
557
0

Removal of Nutrients, Organic Matter and Heavy Metals from Paddy Field Drainage by Charcoal

Ngày tải lên : 05/09/2013, 09:38

... reports to date In this study, in order to develop a technology to reduce loads from farmland, water treatment equipment containing wood charcoal was devised to enable the charcoal to remove organic ... points in Fig (b) Concentrations of total organic carbon (TOC), - 11 - Journal of Water and Environment Technology, Vol 7, No 1, 2009 total nitrogen (TN), total phosphorous (TP) and heavy metals ... inlet to the outlet in the equipment Thus, the filling rate of charcoal in nylon net bags was 50% close to the inlet, 70% in the middle of the course and 90% close to the outlet (Fig (a)) The total...

9
469
0

Biological Alteration of Zinc Complexation Characteristics of Dissolved Organic Matter in Domestic Wastewater Treatment Plant Effluent under River Water Environment

Ngày tải lên : 05/09/2013, 10:15

... Brooks M L., Meyer J S and Boese C J (2007) Toxicity of copper to larval Pimephales promelas in the presence of photodegraded natural dissolved organic matter, Can J Fish Aquat Sci 64, 391-401 Chaminda ... natural organic matter from different surface waters, Journal of Environmental Management, 80, 222-229 Ma H., Allen H E and Yin Y (2001) Characterization of isolated fractions of dissolved organic matter ... reduction was observed up to weeks of incubation as shown in Fig Similar to the trend in DOC, there was a momentous change in UV254 and SUVA, which is a good indicator of aromaticity, during...

9
614
0

Influence of Phosphorus Concentration on the Biodegradation of Dissolved Organic Matter in Lake Biwa, Japan

Ngày tải lên : 05/09/2013, 10:17

... dissolved organic matter, Annual Rep Lake Biwa Res Inst., 16, 49-52 (in Japanese) Yoshida H., Goto N and Mitamura O (2004) Nutrients as a limiting factor of biodegradation of dissolved organic matter ... tried to fraction DOC based on the adsorption characteristics onto hydrous iron oxide at pH ranging from to As a result, the adsorption active DOC seasonally changed in the range of 0.7 to 1.2 ... al., 1999) and the shift of phytoplankton species from larger ones to smaller ones have been reported in Lake Biwa (Kishimoto et al., 2009) Although the former is a factor lowering the internal production,...

9
761
2

Tài liệu Organic matter distribution of the root zone in a constructed subsuface flow wetland pptx

Ngày tải lên : 24/01/2014, 00:20

... ================================================================================ Soil organic matter (OM) is the organic fraction of soil, including wastewater pollutants, plant roots, animal and plant ... component of soil organic matter and is responsible for water retention, nutrient retention and cohesion Soil in CSFW absorbs and stores OM several years This accumulation potentially leads to a decline ... direction, Oy horizontal direction orthogonal to flow the side and Oz direction is the depth of the sand bed as compared to the surface Organic matters in sand are analyzed by using combustion...

6
473
0

Tài liệu Báo cáo khoa học: Crystal structure of importin-a bound to a peptide bearing the nuclear localisation signal from chloride intracellular channel protein 4 ppt

Ngày tải lên : 14/02/2014, 19:20

... normalized B factor, Bi is the B factor of atom i, lj is the mean B factor (excluding water molecules and peptide atoms) and rj is the standard deviation of B factors The normalized B factors have ... main-chain atoms, 40.2 A2 for ˚ overall (62 total atoms) side-chain atoms and 38.7 A Electron density analysis Both the main-chain and side-chain atoms of the modelled CLIC4 peptide show a good ﬁt to ... The average atomic B factors for importin-a in the structure are ˚ ˚ 32.1 A2 for main-chain atoms, 35.7 A2 for side-chain ˚ overall (3244 atoms) For the pepatoms and 33.8 A tide, B factors are slightly...

14
741
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Tài liệu Guide to Organic Marketing and Trade Periodicals, Calendars and Trade Shows pptx

Ngày tải lên : 19/02/2014, 03:20

... series are: Guide to U.S Organic Marketing: Laws and Regulations U.S Federal laws and regulations; state laws and regulations pertinent to marketing organic products; other organic- related certification ... enterprise budgets Guide to Organic Marketing and Trade Research Tools Online Internet portals, cyberguides and news services; business directories and commodity trading sites; organic price indexes; ... organic food trade shows Guide to Organic Market, Industry and Consumer Studies (2004-2008) Bibliography of publications with links to abstracts or full text Guide to Organic Marketing Support Organizations...

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478
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Tài liệu Báo cáo khoa học: NMR structure of AII in solution compared with the X-ray structure of AII bound to the mAb Fab131 pptx

Ngày tải lên : 20/02/2014, 23:20

... electrostatic energy terms ˚ RMSD (A) with respect to mean Heavy backbone atoms (residues 1–8) All heavy atoms (residues 1–8) Number of experimental restraints Total NOEs Intraresidue NOEs Interresidue ... the 13 calculated structures, with respect to mean structure, for backbone atoms ˚ (residues 1–8) was found to be 0.73 ± 0.23 A and for all ˚ heavy atoms 1.35 ± 0.29 A (Table 1) The most well-deﬁned ... is also the most immunogenic epitope of the peptide [58–60] Most substitutions of these immunogenic residues abolish binding to both mAb131 and AT1 The AII bound to the mAb adopts a compact conformation...

12
597
0

Tài liệu Báo cáo Y học: NMR-based determination of the binding epitope and conformational analysis of MUC-1 glycopeptides and peptides bound to the breast cancer-selective monoclonal antibody SM3 pptx

Ngày tải lên : 21/02/2014, 15:20

... epitope mapping presented above To accommodate these variations throughout the molecule we chose to reference distances to reference atom pairs in the same segment, i.e distances between protons ... NMR spectra it is possible to perform a detailed epitope mapping of the peptide bound to SM3 Pro1 gives most intensive STD signals corresponding to a tight contact to the protein We see strong ... b protons Assuming a binding mode as found in the X-ray structure analysis the closest distance of a protein ˚ proton to the Asp2-b/b¢ proton is 2.7 and 3.4 A, respectively This relay proton contributes...

12
717
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Introduction to Organic Chemistry doc

Ngày tải lên : 05/03/2014, 20:20

... in order to minimise their impact To achieve this the type of reactions that organic molecules undergo needs to be understood How you tell the difference between an Organic and an Inorganic Compound? ... Introduction to Organic Chemistry Class exercise: Given carbon atoms and as many hydrogen atoms as required construct possible organic molecules which contain (i) oxygen atom (ii) different halogen atoms ... 56 Aromatics 58 Chem Nat Substances p Introduction to Organic Chemistry An Introduction to Organic Chemistry Organic chemistry is the study of carbon containing compounds and their...

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Soil pH and Organic Matter pptx

Ngày tải lên : 05/03/2014, 21:20

... Decomposition CO CO CO Slow SOM Passive SOM Figure Organic matter cycle (modified from Brady and Weil, 1999) Soil Organic Matter Organic Matter Cycling Soil organic matter (SOM) is defined as the summation ... weakly bound to the soil and are prone to leaching at low pH In addition to the effects of pH on nutrient availability, individual plants and soil organisms also vary in their tolerance to alkaline ... thousands of years Due to its chemical make-up and reactivity, humus is a large contributor to soils’ ability to retain nutrients on exchange sites Humus also supplies organic chemicals to the soil solution...

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443
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Báo cáo khoa học: Secondary structure of lipidated Ras bound to a lipid bilayer pptx

Ngày tải lên : 07/03/2014, 04:20

... spectroscopy of membrane -bound Ras protein as a new tool, paving the way to revealing the dynamic interactions of membrane -bound N-Ras protein with its effectors and regulators (i.e Ras binding ... dithioerythritol) A 40.8 gÆL)1 protein stock solution was used for the injection of N-Ras protein onto the buffer solution of the adsorbed POPC model Secondary structure of Ras bound to lipid bilayer ... solution and of membrane -bound Ras is shown in Fig It was Secondary structure of Ras bound to lipid bilayer Fig The amide I¢ regions of an ATR-FTIR measurement of membrane -bound lipidated Ras and...

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484
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Báo cáo khoa học: C Isotopologue editing of FMN bound to phototropin domains potx

Ngày tải lên : 07/03/2014, 05:20

... electron density onto C(4a) is distributed mainly onto the C(5a) and the C(9) atom, and, to a lesser extent, onto the C(7) atom, in agreement with the fact that the latter atom experiences a smaller ... Nagatani A et al (2001) The phototropin family of photoreceptors Plant Cell 13, 993–997 Salomon M, Lempert U & Rudiger W (2004) Dimer¨ ization of the plant photoreceptor phototropin is probably mediated ... and could be bound to nickel-chelating Sepharose due to the large number of histidine residues present in the hisactophilin domain The column was washed with buffer containing m urea to release...

15
262
0

Guide to Organic Marketing and Trade How-to Publications potx

Ngày tải lên : 07/03/2014, 08:20

... 12/18/07) 136 Pathway to Organic for Producers: Organic Crop Budgets How to Go Organic; Organic Trade Association (OTA) Full text (multiple documents): http://www.howtogoorganic.com/index.php?page=crop-budgets ... volume guide on ‘how to go to market;’ CD-ROM with over 7,200 natural products stores directory of natural buyers in mainstream grocery stores, directories of brokers and distributors, budget models, ... Resources, Guide 34 Pathway to Organic for Processors: Marketing and Sales How to Go Organic; Organic Trade Association (OTA) Full text (multiple documents): http://www.howtogoorganic.com/index.php?page=marketing-and-sales...

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Báo cáo khoa học: Functional implications of pigments bound to a cyanobacterial cytochrome b6f complex potx

Ngày tải lên : 07/03/2014, 16:20

... echinenone to the complex To analyze whether echinenone had a speciﬁc role in the cyt b6f complex, we deleted crtO, the gene coding for b-carotene ketolase, from the PS1-less mutant CrtO is required ... 35 36 37 38 39 40 plant photosystem II J Photochem Photobiol A 96, 109–122 Pierre Y, Breyton C, Kramer D & Popot J-L (1995) Puriﬁcation and characterization of the cytochrome b6f complex from ... spectrum of chlorophyll and the redox state of a b-type cytochrome To determine the orientations of the various cofactors with respect to the long axis of the cyt b6f particle, linear dichroism...

11
520
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Controls of bioavailability and biodegradability of dissolved organic matter in soils

Ngày tải lên : 15/03/2014, 23:22

... the preservation of organic matter in soils Org Geochem 31, 711 – 725 Kaiser, K., Guggenberger, G., Zech, W., 2001a Organically bound nutrients in dissolved organic matter fractions in seepage ... Dissolved organic matter properties and their relationship to carbon dioxide efflux from restored peat bogs Geoderma 113, 397 – 411 (this issue) Guggenberger, G., Kaiser, K., 2003 Dissolved organic matter ... complete mineralisation to obtain energy and inorganic nutrients Depending on the analytical tools used to monitor the degradation process, these two processes are considered to different degrees...

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$Correlation of the partitioning of dissolved organic matter fractions with the desorption of cd$

Correlation of the partitioning of dissolved organic matter fractions with the desorption of cd

Ngày tải lên : 15/03/2014, 23:22

... ðSPOC À TOCall fractions Þ=TOCfraction ð3Þ where SPOC (mg/kg) represents the solid phase organic carbon, TOCall fractions (mg/kg) is the sum of the OC removed during the extraction and TOCfraction ... employed for fractionation and characterization of the organic matter allows comparisons to be made between soils both rich and poor in solid phase organic matter We have not made additions to the ... percentage of the Hyd fraction decreases with Fig Partitioning of each OC fraction as a function of pH for all soils Kd-OC is SPOC (less the fraction TOC) divided by TOC in each fraction at a particular...

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DETERMINATION OF TRACE ELEMENTS BOUND TO SOIL AND SEDIMENT FRACTIONS

Ngày tải lên : 15/03/2014, 23:56

... oxide fraction, before the carbonate -bound fraction or directly after the carbonate -bound fraction or after the oxide -bound fraction The organically bound fraction itself can again be divided into ... designed to partition the particulate heavy metals into five fractions: (1) exchangeable, (2) specifically adsorbed or bound to carbonates, (3) bound to Fe/Mn-oxides, (4) bound to organic matter, ... [116] Five fractions, consisting of an exchangeable metal fraction, metals bound to carbonates, metals bound to iron and manganese hydroxides, metals bound to organic matter, and a fraction of...

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