factors that influence dissolved organic matter lability in bioassays

... 1.1.2.1 GIB in some countries in the world 1.1.2.2 GIB in Vietnam 1.1.2.3 GIB in Bac Giang 1.2 Factors affecting GIB 1.2.1 Factors affecting GIB in the world 1.2.2 Factors affecting GIB in Vietnam ... have 10 in- depth interviews = 60; seminars in three districts, in social seminars 2.2.3 Intervention studies 2.2.3.1 The content and the interventions - Intervention on the scale of the province: ... PPC; plans, seminars); media; interventions for service providers (interdisciplinary inspection, testing and disseminating regulations and organizations signed not SSB) - Intervention in the research...

Ngày tải lên: 11/05/2016, 09:58

... No.2, 2011 in comparison with that in 1985 However, as the particle retention diameter of filter used for separating dissolved matter and particulate matter in 1985 was larger than in 1999 in Takahashi's ... northern basin of Lake Biwa Consequently, DOM in 2000s was expected to be 1.6 times higher than that in 1980s Since the ratio of CODMn observed in 2000s to that in 1980s in the northern basin of Lake ... possible pathways to increase DOM in the lake are as follows: (1) increase in the DOM loading from the watershed, (2) increase in internal production of DOM, (3) decrease in DOM discharge from...

Ngày tải lên: 05/09/2013, 10:17

... ion ion tion New tion ba ba bat bat incu incu incu incu 1st 2nd 3rd 4th Figure Change in amount of organic carbon on PAC for every incubation by glucose According to Sutherland (2001), extracellular ... rpm, 20 minutes) to determine was determined as the amount of biofilm developed on PAC The amount of organic carbon in washing solution The adsorption capacity of the separated PAC from washing solution ... process contained sugars, amino sugars, uronic acid and amino acids, and concluded that these polymers -1 Adsorption Capacity（mg g ) 1000 100 ○ New PAC PAC New △PAC in the aeration tank PAC in the...

Ngày tải lên: 05/09/2013, 08:40

... DOM in the original river water sample seems to fit into two linear portions indicating two classes of binding sites In contrast, DOMs in the samples after and weeks fitted to a single line, ... of zinc binding sites in river water DOM Fig represents the variation of DOC, UV254 and SUVA during the river water incubation for weeks in the preliminary study During the first days of incubation, ... slopes of the lines in a particular binding site class Conditional stability constant for the strong type of binding site remained at log K1' = 7.2 while that in weak type remained at log K2'...

Ngày tải lên: 05/09/2013, 10:15

... Keywords: Bioavailability; Biodegradation; Dissolved organic matter; DOC Introduction In the past 10 years, much progress has been made in the understanding of dissolved organic matter (DOM) functions ... bear in mind that often, several mechanisms and processes interact to determine the stability or biodegradability of organic matter in soils In this paper, factors and mechanisms are reviewed that ... (Bijay-Singh et al., 1988; Isermann and Henjes, 1990; Pu et al., 1999), thus indicating that the availability of biodegradable DOM may be a prerequisite for creating reducing condition in soils or in...

Ngày tải lên: 15/03/2014, 23:22

... study all researchers were final year podiatry students who had participated in the same training in interview techniques More than one interviewer was involved in generating data This modified approach ... wearing orthoses both increased foot pain and led to feelings of guilt “I’m very limited, I can hardly get my feet into anything I have insoles for my boots and trainers I don’t always find them ... generated data that met the aims of the study Following the initial interview, the interview schedule was further refined (Additional file 1) Generation of data Each interview took place within the out-patient...

Ngày tải lên: 10/08/2014, 21:24

Ngày tải lên: 21/08/2014, 18:20

... material on /in the membrane was very close to that of the DOM in the MBR system, indicating that DOM was the dominant foulant It was suggested that internal fouling caused by adsorption of DOM into ... fouling remains the principal obstacle constraining their more extensive and large-scale application Dissolved organic matter (DOM), mainly soluble microbial products, is a major concern in wastewater ... systems, membrane fouling remains the principal obstacle constraining their more extensive application Membrane fouling, commonly Chapter 1-Introduction indicated by permeate flux decline or transmembrane...

Ngày tải lên: 14/09/2015, 11:16

... study intended to examine factors that affect Vietnamese consumer intention of using and re-using e-banking This study aims to answer these following questions: What are the key factors that influence ... e-banking Another definition about electronic banking that proposed by Federal Financial Institutions Examination Council in 2003 is electronic banking includes the systems that enable financial institution ... Theory on explaining customers‟ intentions.; (2) Finding the key factors impacts on Vietnamese in using or re-using e-banking.; (3) Develop a model to be applied in e-banking service in Vietnam.;...

Ngày tải lên: 26/09/2015, 12:59

... mechanical straining as well Organic matter causes chemical leaching of arsenic in AIRU The leaching of arsenic and iron in the presence of organic matter in AIRU feed water was investigated under ... standards for drinking water In these cases, high concentration of organic matters, 25.8~51.4 mg/L as TOC, were observed in the influent water Several studies reported that the dissolved organic carbon ... with high organic contamination is even used in drinking water treatment in the rural areas of Bangladesh Moreover, the concentration of organic matter is sometimes unnoticed in the installation...

Ngày tải lên: 05/09/2013, 09:38

... found an increase in humic compounds (as defined by separation on a XAD-2 resin) with increasing pH Temminghoff et al (1994) found that the humic/fulvic ratio (as defined by size separation in 0.0033 ... Korshin GV, Ankudinov AL XANES study of Cu2 + -binding sites in aquatic humic substances Environ Sci Technol 2000;34: 2138 – 42 Han N, Thompson ML Copper-binding ability of dissolved organic matter ... natural and engineered systems For example, increasing pH in wastewater treatment to precipitate compounds could actually increase Cu in solution by increasing the solubility of OM Released organic...

Ngày tải lên: 15/03/2014, 23:22

... for collecting information and the sample of sites that provided information We present the findings regarding the factors that promoted or were barriers to implementing the program in the fifth ... Components, and Influence Factors Our interview protocols contained items that captured information about the functioning, context, resources, and influences for the core components that were specific ... Nearly all of the factors contributing to challenges in maintaining fidelity were related to funding in one way or another For instance, one of the primary factors that threatened adherence to model...

Ngày tải lên: 23/03/2014, 08:20

... yearly during certain periods, depending on the phenology of the dominant species The production of litter is intimately related to the edaphoclimatic factors of the zones in such a way that the ... + indeterminate organs) are indicated in table VII Leaf litter production was very similar in both forests while litter production was more important in the pine forest The differences appearing ... con- siderably in depth, clay contents increasing with depth and is classified as Humic Acrisol [12] These and other soil characteristics are indicated in table III pine trees (Pinus sylvestris...

Ngày tải lên: 08/08/2014, 14:21

... weeks before conditioning Prophylaxis for acute GVHD was a calcineurin inhibitor alone (n = 5), calcineurin inhibitor plus short-term methotrexate (n = 32), calcineurin inhibitor plus mycophenolate ... none (n = 3) The calcineurin inhibitor included cyclosporine administered to 33 patients and tacrolimus to six patients End points The absence of post-transplant remission in some patients biased ... declare that they have no competing interests show that this sequential regimen had an advantage in controlling active leukemia However, we speculated that effective tumor reduction by individual...

Ngày tải lên: 10/08/2014, 10:21

... electronically sohold lots until the=forgo investing zero) hold lotsof cash =cash balance is in M/S it waits of cash forgo investing in M/S and earning interest and earning interest Optimal Cash Balance ... Payment instruments being used (checks, drafts, wire transfers, etc.) Bank charges and internal costs Techniques being used Time involved for processing of instruments Payments Netting in Public ... netting Procedure involved Only netted amount is transferred (bilateral netting) Netting center (multilateral netting) Our objectives • Learn about the Cash Cycle • Understand the factors that influence...

Ngày tải lên: 31/10/2014, 15:29

Ngày tải lên: 24/11/2014, 02:32

... The linear decreasing OM distribution to the increasing vertical and horizontal flow direction is confirmed as the hypothesis in highly deposition of suspended solids and organic matters in the ... OM - organic matters in present (%); - weight of cup (gr); Mc Ms - weight of dried sand sample (gr) by drying at 110 °C in hours; Msc - weight of sand and cup after combusting at 550 °C in hours ... The hypothesis is the OM distribution in sand bed descending linearly to the flow direction Materials and methods Sand sampling was done during January 2007 in the experimental constructed subsurface...

Ngày tải lên: 24/01/2014, 00:20

... mg/L as Fe; chlorine dose, 11 mg/L as Cl2 ; chlorination time, 30 3.2 Interaction of chlorine with dissolved and colloidal NOM in IOP/UF To examine the interaction of chlorine with dissolved NOM ... conversion of particulate matter to dissolved matter by chlorination should contribute to an increase of carbon content in the dissolved NOM pool, resulting in lower DOC removal during IOP/UF 3.3 Effect ... declined slightly after chlorination of raw water The interaction of chlorine with dissolved NOM in raw water caused a decrease in UV absorbance, while that with particulate matter did an increase...

Ngày tải lên: 16/03/2014, 00:07

... 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 (DON) input ... intensive rain in the growing season is likely to enhance N leaching in these forests BGD 4, 4135–4171, 2007 Introduction 10 15 20 25 Increases in the deposition of atmospheric nitrogen (N) in uence ... precipitation (25%) in the second year, annual DIN input in precipitation was 5% less in the second than in the first year (Table 2) Ammonium was the dominant form of DIN input in precipitation with...

Ngày tải lên: 23/03/2014, 00:20

... variables that influence HIV-1 cerebrospinal fluid concentrations in cryptococcal meningitis: linear regression analysis Variable HIV-1 plasma viral load In CSF: Leukocyte count Protein concentration ... replication in addition to promoting an inflammatory response in the CNS However, in the clinical setting of our investigation, no correlation was found between CCPA titer and CSF HIV-1 viral load in ... stimulation in the cerebrospinal fluid during HIV infection: a longitudinal study Scand J Infect Dis 1994, 26:523-33 Price RW, Staprans S: Measuring the "viral load" in cerebrospinal fluid human...

Ngày tải lên: 20/06/2014, 08:20