sources of dissolved organic carbon

... amount of organic carbon was indicator as the amount of biofilm developed on PAC shows the amount of organic carbon on PAC after each incubation Figure Figure shows the adsorption isotherm of new ... capacity of PAC in the membrane with molecular weight cut-off of 300,000 Da was significantly higher than that in the aeration tank The decrease in the Amount of Organic Carbon/ amount of PAC ( ... objective of this study is to clarify the effect of DOM and biofilm on the adsorption capacity of PAC in the aeration tank of PACT process Materials and methods 2.1 Operation of powdered activated carbon...

Ngày tải lên: 05/09/2013, 08:40

... complexation parameters Determination of dissolved and labile Zn, DOC, UV absorbance and SUVA Dissolved organic carbon concentration was measured as non-purgeable organic carbon with a TOC analyzer (TOC-VCSH, ... press) Cheng T and Allen H E (2006) Comparison of zinc complexation properties of dissolved natural organic matter from different surface waters, Journal of Environmental Management, 80, 222-229 Ma ... Characterization of isolated fractions of dissolved organic matter from natural waters and a wastewater effluent, Water Research, 35 (4), 985-996 Sarathy V and Allen H E (2005) Copper complexation by dissolved...

Ngày tải lên: 05/09/2013, 10:15

... particulate organic matter did not affect CODMn, the possibility of accumulation of dissolved organic matter (DOM) is pointed out (Imai, 2002) On the other hand, Takahashi (1999) reported that dissolved ... Behavior of organic matter in Lake Biwa, Annual Rep Lake Biwa Res Inst., 22, 161-170 (in Japanese) Hayakawa K and Takahashi M (2002) Behavior of dissolved organic matter in the northern basin of Lake ... reported that the addition of 2.5µM of phosphorus enhanced the growth of heterotrophic bacteria in the surface water of Lake Biwa, although the enhancement effect of phosphorus addition was inhibited...

Ngày tải lên: 05/09/2013, 10:17

... assimilable organic carbon and biodegradable dissolved organic carbon Environ Sci Technol 35, 3442 – 3447 Fritze, H., Pennanen, T., Kitunen, V., 1998 Characterization of dissolved organic carbon from ... decomposition and dissolved organic carbon quality Soil Biol Biochem 31, 367 – 374 Moore, T.R., 1997 Dissolved organic carbon: sources, sinks, and fluxes and role in the soil carbon cycle In: ... S., Nilsson, S.I., 2001 Influence of pH and temperature on microbial activity, substrate availability of soil-solution bacteria and leaching of dissolved organic carbon in a mor humus Soil Biol...

Ngày tải lên: 15/03/2014, 23:22

... dissolution/desorption of organic carbon from solid to solution vary in these soils This should be expected in this Fig Partitioning of metal in the Dutch soils vs partitioning of soil organic carbon 408 ... fractions are of limited value because of the manipulations (especially pH) that are required in the fractionation procedure The concentration of organic carbon and the percentage of the TOC contained ... DR, Hathhorn WE Enhanced mobility of Pb in the presence of dissolved natural organic matter J Contam Hydrol 1997; 29:59 – 80 Karlik B Liming effect on dissolved organic matter leaching Water Air...

Ngày tải lên: 15/03/2014, 23:22

... concentrations and fluxes of dissolved inorganic (DIN) and organic N (DON) in precipitation, throughfall, surface runoff and soil solution for three subtropical forests in a region of South China under ... 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 of dissolved organic N ... indicated that DIN and DON might have different sources −1 −1 at our site Dissolved organic 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,...

Ngày tải lên: 23/03/2014, 00:20

... ACCUMULATION OF DISSOLVED ORGANIC MATTER IN MEMBRANE BIOREACTORS LIANG SHUANG (B Eng., Qingdao Technological University) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CIVIL ... explanation of DOM accumulation In order to fulfill the objectives of this study, the characteristics of DOM obtained from the pilot MBR systems were investigated using the classical dissolved organic carbon ... potential of DOM for GVWP and GVHP membranes .66 Table 4.4 Fouling potential of fractional components of DOM in MBR3 at DOC concentration of mg/L .74 Table 5.1 Typical characteristics of influent...

Ngày tải lên: 14/09/2015, 11:16

... SURFACE CHEMISTRY OF ORGANIC CARBONYL COMPOUNDS AND THEIR DERIVATIVES ON Ni(111) LI TINGCHENG (B.Sc WUHAN UNIVERSITY) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMISTRY ... for identifying a wide variety of intermediates in surface reactions A large number of detailed studies of the adsorption, desorption, and reaction of organic carbonyl molecules on single crystal ... vast amount of studies of the CVD of Cu.26-38 Two of the most useful families of Cu CVD precursors that have been identified are the Cu(II) beta-diketonates and Lewis base adducts of Cu(I) beta-diketonates.21,25...

Ngày tải lên: 17/09/2015, 17:19

Ngày tải lên: 21/06/2013, 01:27

... takes ……………to make coal a billions of years b millions of years c three millions of years d three billions of years ? Task 2.listen again to the last part of the talk and write in the missing ... ral and alternative resources c d human beings and their environment ? The natural environment consists of ……… a the oceans and the land b the sun and the air c all natural resources d the air and ... air, and water are renewable resources because there is ……… .Supply However, this definition may change if people are not careful with these resources The amount of solar energy that reaches the...

Ngày tải lên: 22/06/2013, 01:26

... disadvantages of using each alternative sources of energy , using the suggestions from Task I think that wind power can be an alternative source of energy Why you think so? Sources of energy Nuclear ... Example : A: I think that wind power can be an alternative sources (1) of energy B: Why you think so? A: Because our major sources of energy are running out while the wind is abundant and unlimited ... day time A: I think that solar energy can be an alternative sources of energy B: Why you think so? A: Because our major sources of energy are running out while the solar energy is plentiful...

Ngày tải lên: 25/06/2013, 01:26

... source of energy now?  Our major source of energy comes from fossil fuels? How many sources of energy are mentioned in the reading passage? Which one you think has the most potential?  Five sources ... same time, we must find new sources of energy Geothermal heat and nuclear power are (5) alternative sources of energy They can give us electricity Other alternative sources (6) are the ... kiệt Task 2: Sources of energy Nuclear power Advantage(s) There is plentiful of it It is unlimited Geothermal It is available heat Wind power It is a clean source There is plentiful of it Water...

Ngày tải lên: 22/07/2013, 01:27

... Fractions of Dissolved Organic Matter and Humic Substances from Municipal Solid Waste Compost, Journal of Environment Quality,31, 1885-1892 Ministry of the Environment (2008) Results of the FY2007 ... 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 ... were carbonized at 1,050°C The charcoal, which was produced in a carbonization factory of a forestry cooperative in Japan, was ground to the consistency of sawdust The physical properties of the...

Ngày tải lên: 05/09/2013, 09:38

... agricultural production are also regarded as one of the sources of atmospheric N However, there are other major anthropogenic sources of reactive N like combustion of fossil fuels by factories, automobiles ... the inflow of domestic wastewater, urban and agricultural runoffs (Fujino et al., 1997) Being a middle-sized city, Hadano City is comprised of various types of land cover The core areas of the city ... of water and natural outflow of ground water (spring) are the salient features - 142 - Journal of Water and Environment Technology, Vol 9, No.2, 2011 of this city This study on the analysis of...

Ngày tải lên: 05/09/2013, 10:17

... concentrations of the two reactors The maximum nitrogen conversion rate of each reactor at the influent DO of about 0.2 mg/L was set to an anammox activity value of 1.0, and for the other concentrations of ... decreased when DO of high concentration was fed into the reactor of each Fig shows the amounts of nitrite removed (NO2-Nre.) and nitrate produced (NO3-Npro.) based on the amount of ammonium removed ... nitrogen conversion rate of reactor (open circles), nitrogen conversion rate of reactor (open squares) and the solid line (no symbol) shows influent DO concentration - 172 - Journal of Water and Environment...

Ngày tải lên: 05/09/2013, 10:17

... stripper are shown in Table Most of the specifications are recommended specifications for rate based model of the CO2 capture process by Aspen Tech [7], and some of them are taken from literature ... Cycle of an Existing Coal-Fired Power Plant Master Thesis, University of Waterloo, Canada, 2004 [3] Fluor for IEA GHG Program Improvement in Power Generation with Post-Combustion Capture of CO2 ... of Energy and Environment (IJEE), Volume 3, Issue 6, 2012, pp.861-870 869 [4] Michael A.D A model of vapour-liquid equilibria for acid gas-alkanolamine-water systems Ph.D Thesis, University of...

Ngày tải lên: 05/09/2013, 14:59

... potential (m3/mg of waste), Mi = the mass of solid waste in the ith section of the landfill (mg), ti = the age of the ith section of the section of the landfill (years), t = the age of the landfill ... Journal of Energy and Environment (IJEE), Volume 4, Issue 1, 2013, pp.85-92 Figure Graph of frequency against range of values of age of landfill (t) Figure represents range of values of the total ... The number of Monte Carlo terms chosen was based on the level of uncertainty believed to exist in the values of the uncertain parameters In Figure 3, the range of values of the age of the studied...

Ngày tải lên: 05/09/2013, 16:11

... levels of CO2 are at the heart of the concerns over global warming and many of the associated environmental problems Biofuels and other forms of renewable energy aim to be carbon neutral or even carbon ... Energy Crisis and the Balance of Carbon Biofuels were the first form of fuel used by human cultures around the world Even up to the discovery of electricity and the start of the industrial revolution, ... greenhouse gas emissions Plants as Sources of Energy 167 Fig 9.2 The carbon cycle Gigatons of carbon (GtC)/year, stored at various sites along the cycle Illustration courtesy of NASA Earth Science Enterprise,...

Ngày tải lên: 25/10/2013, 05:20

... 18 Activity 3.2: Identifying Sources of Information Exercise 1: Identifying Sources of Information ! Develop a list of sources of information Review the information in the Ferguson ... case study In the following table, list examples for each source of information You will discuss your results in a class discussion Sources Examples Artifacts Systems People ...

Ngày tải lên: 24/01/2014, 10:20

... efficient estimates of the impact of banking sector development on growth and the sources of growth Specifically, dynamic panel procedures typically take first differences of the observations ... Under the null-hypothesis of the validity of the instruments this test is distributed χ2 with (J-K) degrees of freedom, where J is the number of instruments and K the number of regressors The second ... ratio of government expenditure to GDP as indicators of macroeconomic stability We use the sum of exports and imports as share of GDP and the black market premium to capture the degree of openness...

Ngày tải lên: 27/01/2014, 11:20