... loading of 3,5-DCP onto PACT and control reactors - 252 - Journal of Water and Environment Technology, Vol.1, No.2, 2003 3.2 Effects ofdissolvedorganicmatter (DOM) on adsorption capacity of PAC ... amount oforganic carbon was indicator as the amount of biofilm developed on PAC shows the amount oforganic carbon on PAC after each incubation Figure Figure shows the adsorption isotherm of new ... other dissolvedorganic matters (DOM) and biofilm attached onto PAC However, it is not clear that the effect of DOM and biofilm attached onto PAC were decrease in adsorption capacity of PAC in the...
... press) Cheng T and Allen H E (2006) Comparison of zinc complexation properties ofdissolved natural organicmatter from different surface waters, Journal of Environmental Management, 80, 222-229 Ma ... Characterization of isolated fractions ofdissolvedorganicmatter from natural waters and a wastewater effluent, Water Research, 35 (4), 985-996 Sarathy V and Allen H E (2005) Copper complexation by dissolved ... complexation parameters Determination ofdissolved and labile Zn, DOC, UV absorbance and SUVA Dissolvedorganic carbon concentration was measured as non-purgeable organic carbon with a TOC analyzer...
... particulate organicmatter did not affect CODMn, the possibility of accumulation ofdissolvedorganicmatter (DOM) is pointed out (Imai, 2002) On the other hand, Takahashi (1999) reported that dissolved ... Behavior oforganicmatter in Lake Biwa, Annual Rep Lake Biwa Res Inst., 22, 161-170 (in Japanese) Hayakawa K and Takahashi M (2002) Behavior ofdissolvedorganicmatter in the northern basin of Lake ... Fractionation ofdissolvedorganic carbon from the waters of Lake Biwa and its inflowing rivers, Jpn J Limnol., 59, 53-68 (in Japanese) Imai A (2002) Accumulation of recalcitrant dissolvedorganic matter...
... Hathhorn WE Enhanced mobility of Pb in the presence ofdissolved natural organicmatter J Contam Hydrol 1997; 29:59 – 80 Karlik B Liming effect on dissolvedorganicmatter leaching Water Air Soil ... 2002) Dissolved natural organicmatter has also been implicated in preventing the sorption of Pb onto a sandy soil (Jordan et al., 1997) Further analysis of the data reveal that the presence of ... Isolation and chemical characterization ofdissolved and colloidal organicmatter Chem Ecol 1993;8:135 – 51 Alberts JJ, Filip Z Metal binding in estuarine humic and fulvic acids: FTIR analysis of humic...
... ACCUMULATION OFDISSOLVEDORGANICMATTER IN MEMBRANE BIOREACTORS LIANG SHUANG (B Eng., Qingdao Technological University) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CIVIL ... CHARACTERISTICS AND BEHAVIORS OF DOM AT DIFFERENT SRTS .94 6.1 Overall Performance of MBR System 95 6.2 Concentration of DOM at different SRTs .97 6.3 Compositionof DOM at different ... transport mechanisms of retarded convection and dispersion of DOM through a porous membrane can be a better explanation for DOM accumulation in MBR systems Keywords: Dissolvedorganic matter; Membrane...
... different VOC in the formation of secondary organic aerosol (Watson et al., 2001) The speciation of VOC emitted from motor vehicles reflects the chemicalcompositionof the fuel consumed, with additional ... emissions and found that the compositionof the emitted VOC was best described as a 50-50 mix of liquid gasoline and headspace vapor compositions The speciation of VOC emissions from on-road ... terms of relative composition are not very sensitive to ! temperature; it is the absolute vapor pressure of gasoline that depends strongly on T, much moreso than the relative compositionof the...
... the portion of inlet and outlet and at the boundary of nylon nets bags with charcoal, and is adsorption when drainage water contacts the surface of charcoal because of the structure of this equipment ... Preparation of charcoal from Cryptomeria and Chamaecyparis and their properties Tanso, 160, 247–254 Kaschl A., Romheld V and Chen Y (2002) Cadmium Binding by Fractions ofDissolvedOrganicMatter ... Shiratani E., Yoshinaga I., Hitomi T., Hamada K and Takaki K (2007a) Characteristics of the adsorption ofdissolvedorganicmatter by charcoal carbonized at difference temperatures, Japanese Agricultural...
... discussion The essential oil was light yellow and the total yield of 1.23% The chemicalcompositionof the leaf essential oils of investigated species collected in October 1991 and 2007 were not ... oil of investigated species from Vietnam was characterized by large amount of α- and βphellandrene (70.7%) and the ratio of αphellandrene and β-phellandrene was 5.73 Table The compositionof leaf ... research from the Ministry of Science and Technology of Vietnam, code 50 63 06 References [1] N.X Dung, P.V Khien, Essential oils of wood, root, flower, and fruit of camphor tree, Pharmaceutical...
... Hela cell lines in vitro Chemical examination of the BuOH extract of the leaves and twigs of Litsea glutinosa collected from Xishuangbanna resulted in the isolation of two new aporphine alkaloids, ... [17] Tran Dinh Thang, Hoang Van Luu, Nguyen Xuan Dung, Chemicalcompositionof the leaf oil of Canarium bengalense Roxb from Vietnam, Journal of Essential oil and Bearing Plants, 7(1) (2004) 43 ... Vietnamese Pharmacopoeia [11] The yield of the fresh leaf oil was 0.15% GC- About 15mg of oil, which was dried with anhydrous sodium sulfate, was dissolved in 1ml of n-hexane (for spectroscopy or chromatography)...
... influenced either by soil sources of DON (decomposition of litter and soil organic matter, plant exudates, fine-root and mycorrhizal turnover, and the waste products of macro and microorganisms), ... reported similar dissolved inorganic N (DIN) deposition in bulk precipitation in 2004 (Fang et al., 2007) Here we have continued these measurements but including also analysis ofdissolvedorganic N ... our site Dissolvedorganic N input amounted to 17.8 kg N yr , accounting −1 for 36% of total dissolved N (TDN) input (47.6 kg N in 2005, Table 2) Annual −1 volume-weighted concentration of DON...
... individual and classes of VOC species This will be used to help understand the chemical transformation of air parcels as they are exported out of and downwind of the MCMA For organic compounds the ... averaged over the month of March 2006 Shown to the right of each bar graph is a breakdown, for T0 and T1, respectively, of all of the species measured in terms of the sums of the mixing ratios for ... 10, 2353–2376, 2010 2370 E C Apel et al.: Chemical evolution of volatile organic compounds Fig 14 Results of a MM model run to test of the sensitivity of the model to specific compounds The model...
... Adsorption of pesticides by organic matter- lay complexes Techniques used in pesticides -organic matter interaction studies , Chemical alteration and binding of pesticides ... soil organicmatter Effects of management on soil organicmatter 173 173 173 175 175 175 175 177 184 185 XI1 CONTENTS Effect of long term cropping Effect of ... distribution oforganic sulfur in soil 275 Forms oforganic sulfur 276 278 Amount and distribution oforganic sulfur 279 Effect of soil forming...
... oforganic anions The mean DOC concentration of 4.5 mg L1 required a charge of àmolc per mg of C, which is in agreement with the literature indicating values ranging from to 10 àmolc per mg of ... decit of the ionic balance can be related to the DOC, requiring a charge oforganic carbon varying from to 10 àmolc per mg of C from forest-oor to 60 cm At 120 cm, the charge of C should be of 41 ... clear-cutting (vertical line) The decit of the ionic balance in anions was attributed to the presence oforganic carbon (20 mg L1 ) requiring a mean charge of 6.5 àmolc per mg of C Anions in throughfall were...
... profile, i.e Of+ Oh horizons, is 72 mm) The organic profile is highly acidic with pH values of 3.0 and 2.6 (in KCl) and Ca2+/H+ quotients of 0.2 in the equilibrium soil solution of the upper (Of) and ... lowlands of NW Germany on Saalian melt water sands (115 m asl), this site is characterised by soil profiles (spodo-dystric cambisols) with thick organic layers (mean depth of the entire organic profile, ... laboratory studies on the relationship of radial hydraulic conductivity and the chemicalcompositionof apoplastic transport barriers in plant roots in two ways: (a) chemical data are expressed in relation...
... bark chemicalcomposition have been summarised [5] A description of P pinaster bark anatomy and chemicalcomposition has recently been published [9] In this paper we describe the anatomy and chemical ... samples were taken at breast height For determination of the chemical composition, a composite sample prepared by mixing aliquots of the bark of each tree sampled The composite sample was milled ... The determination of tannin content used methylcellulose as absorbent: 10 mL extract were added to 10 mL of a 0.04 % solution of methylcellulose of high substitution degree, mL of a saturated ammonium...
... mdu nudc mua bdn tudgng (WO) Tai lieu tham khao P.M.Hoai, Chemicalcomposition and acidity of atmospheric deposition in the northern part of Vietnam The thesis No EV97-34, AIT, Thailand P.H.Viet, ... Scientific Advisory Group meeting of Acid deposition Monitoring network in East Asia., March 2000 N.H Khanh, 2000, Air emission and the acidity of rain water of Hanoi city, Progress in Nuclear ... Suksomsankh, S.Simachaya, M Tabucanon and H Rodhe.1996 Regional background acidity and chemicalcompositionof precipitation in Thailand, Atmosphere Environment Vol.30, 1589-1596 830 L.Granat,...
... the variations of pH value in the end of experiments were within ± pH unit 0.1 2.4.3 The influences of NOM on the degradation of ibuprofen by ozonation In the experiments of ibuprofen degradation, ... NOM ON THE REMOVAL OF IBUPROFEN DURING WATER OZONATION 74 5.1 Modeling the influences of NOM on the degradation of ibuprofen by ozonation 74 5.2 Application of the model to other ... intercept of the plot of 1/Rct vs the external inhibition capacity, respectively The rate constant of NOM as the promoter can be determined from the slope of the plot of pseudo first-order ozone decomposition...