gis for assessing land based activities that pollute coastal environments
Humic Matter in Soil and the Environment: Principles and Controversies - Chapter 2 pot
Ngày tải lên :
11/08/2014, 12:21
... been reported that humic acid can be subdivided into a- and P-humic acid (Russell and Russell, 1950) The name a-humic acid is used for the initial or original humic acid fraction before ethanol ... coal or peat, since these two materials are formed in anaerobic conditions completely opposite to the aerobic system present in soils responsible for formation of soil humic matter Springer's gray ... thick that it becomes a valuable source for commercial humate production as is the case in Florida (Lobartini et al., 1992; Burdick, 1965) Spodosol humic matter has been a favored material for...
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Handbook of industrial and hazardous wastes treatment - Part 1 pot
Ngày tải lên :
11/08/2014, 17:22
... that are formally endorsed by international organizations such as the US EPA, the EEC, and the OECD, and that are required by virtually every country for regulatory testing [70] The reasons for ... inter-related environments However, the search for the most sensitive taxon fortunately died a natural death when it was realized that different types of toxicants have different modes of action, and that ... prioritize effluents for sanitation In the index no allowance has been made for in-stream dilution, therefore the actual risk for environmental effects is not modeled The tests performed on each effluent...
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Handbook of industrial and hazardous wastes treatment - Part 2 pot
Ngày tải lên :
11/08/2014, 17:22
... pH of cadmium For this case, an extra pH increase is not needed, as long as calcium is used for ligand sharing However, for NTA, a strong complex former, the pH increase needed for cadmium to ... treatment scheme for oily waste is determined by the form of the oil and organic content Oil can be found as free, emulsified, and soluble forms The main treatment methods for these forms are summarized ... particle distribution tending to form smaller particles Inorganic flocculants also affect the soluble metals that may be in equilibrium with the formed solid phase or that remain unaffected by hydroxide...
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Handbook of industrial and hazardous wastes treatment - Part 3 pdf
Ngày tải lên :
11/08/2014, 17:22
... state for selected persistent and bioaccumulative toxic substances that commonly occur in hazardous substances For example, the California Hazardous Waste Control Act requires the California ... (VCM) California criteria for defining hazardous wastes that are ignitable and reactive are identical to Federal criteria for hazardous wastes under RCRA defined at 40 CFR, Part 261 The California ... requirement for a primary substrate such as glucose The major drawbacks of the fungal bleaching process are that it is extremely slow for industrial application and requires expensive substrates for...
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Handbook of industrial and hazardous wastes treatment - Part 4 ppt
Ngày tải lên :
11/08/2014, 17:22
... potential for disease transmission It is therefore beneficial to treat the waste by a stabilization process before land application, and where this is not possible it is imperative that land application ... are nutrient-rich It is therefore clear that for the purposes of design of a treatment facility a much better method of assessing the pollution load is required For this purpose the typical pollution ... the need for excavation works to avoid this For this reason, longitudinal or radial flow sedimentation tanks are now preferred for new installations in Europe The usual design criteria for these...
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Handbook of industrial and hazardous wastes treatment - Part 7 (end) potx
Ngày tải lên :
11/08/2014, 17:22
... toluene for plants with current BPT in place Table presents similar data for base/neutral toxic pollutants for current BPT in place [8] Table presents similar data for wood preserving phenols for ... be used in the EU for timber destined for marine and most agricultural uses The New Zealand Environmental Risk Management Authority (ERMANZ) has decided not to change the registration of CCA ... and many other commodities Monomer conversion efficiencies for latex production range from 60% for lowtemperature polymerization to 98% for high-temperature conversion The monomers are piped from...
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An experimental study on the thermal valorization of municipal and animal wastes
Ngày tải lên :
05/09/2013, 15:28
... developing kinetic models for the pyrolysis and combustion of these fuels, for which there is lack of information in the literature The obtained data should be useful for the design of furnaces, ... ASTM standards For proximate analysis programmable laboratory furnaces were used (E871, D1102-84), for ultimate analysis a 2400 CHNS analyzer of Perkin Elmer (D3176-93, D3177-33) and for calorific ... 15, 16] However, estimated values show that these parameters vary significantly between PW and RDF, reflecting the different reactivities of these fuels For PW, reaction in nitrogen or air needed...
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ADVANCED GAS CHROMATOGRAPHY – PROGRESS IN AGRICULTURAL, BIOMEDICAL AND INDUSTRIAL pdf
Ngày tải lên :
28/06/2014, 14:20
... intensities and isotope-resolved information for element assignments It is extremely helpful for unknown compounds for which no Library spectrum is available for database searching as reviewed ... a triple quadrupole is that can be used only for one step of MS/MS, while an ion trap can perform multiple steps tandem MS experiments, which is sometimes very useful for structure elucidation ... (ECD), etc.) for a GC system According to the detection mechanism, information-rich detectors can be mainly classified as 1) detection based on molecular mass spectrometry, 2) detection based on...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - MUNICIPAL WASTEWATER potx
Ngày tải lên :
10/08/2014, 20:20
... entities but it is necessary that a common basis be established One of the reasons advanced for the choice of the five day period is the fact that almost all rivers in England are within five days ... by dilution Discharge standards are usually based on concentration and total quantity Sewage purification works were formerly constructed for reasons based primarily on public health More modern ... as an example to other areas It is unfortunate, but true, that one heavy pollution source can undo the efforts of many groups with social responsibility and foresight Because objectives in waste...
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Accumulation and transpotation of selected heavy metals in thermophilic anaerobic co-digestion of municipal sewage sludge and organic waste.PDF
Ngày tải lên :
24/06/2015, 08:16
... compound forms of heavy metal in sewage sludge [1] It is difficult to determine a suitable method for treatment municipal sertage sludge with orient using product to soil amendment Therefore, it ... implemented in thermophilic that have heavy bleaching follow chemical mechanism but also indirectly effect on microorganism developing to that cause effect on transformation of healry metals in ... eluted solution 3300 for 31 heavy metals determination 00 2900 2700 2500 Scale exactly 10g dry substrate and put into bottle 250 ml, add 100 ml distilled water and 24 hours After that, use spin filter...
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Research on UNITANK technology and its application in municipal wastewater treatment plant
Ngày tải lên :
07/07/2015, 10:30
... residual sludge for suction is low because the bottom of the tanks is flat and the single point method is chosen as the operation mode of sludge pump Usually there are two ways for discharging ... China The technology has drawbacks in large communities because it requires much greater area of land than the more compact trickling filter and activated sludge process UNITANK process was chosen ... is shown in Table 1, which achieves the secondary standard of "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant " (GB18918-2002,China) Table The Designed Quality of Influent...
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A new hybrid treatment system of bioreactors and electrocoagulation for superior removal of organic and nutrient pollutants from municipal wastewater
Ngày tải lên :
13/09/2015, 17:48
... technologies, based on the modification of existing processes, have attracted a great deal of attention from those responsible for treating wastewater For example, Tandukar et al (2007) evaluated the performance ... anaerobic sludge blanket (UASB) for treating sewage and showed removal rates of 94.3%, 89.7% and 55.9% for total BOD, total COD, and T-N, respectively Kim et al (2010) reported that the integrated fixed-film ... 90% and 85% for COD, TP and ammonia, respectively, with a solids residence time (SRT) of days Recently, Di Trapani et al (2011) Performance of a hybrid activated sludge/biofilm process for wastewater...
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Contact-Adsorption-Regeneration-Stabilization Process for the Treatment of Municipal Wastewater
Ngày tải lên :
05/09/2013, 09:38
... Therefore, the land area requirement could be significantly reduced and accordingly construction investment would be cut down This paper reports the experimental results of the CARS process for ... adsorption Many studies reported that the ability of adsorption increased with the decreasing temperature either for dried sludge (Zhou, 1992; Zhou and Banks, 1993) or for activated carbon (McCreary ... the system for the Langmuir model that can be considered as an indicator of adsorptive capacity and appetency, respectively; and KF and n are constant characteristics of the system for the Freundlich...
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Continuous Anaerobic Digestion of Food Waste and Paper Waste under Mesophilic-Dry Condition
Ngày tải lên :
05/09/2013, 10:15
... to that in a landfill Furthermore, clean biogas can be obtained, which can be utilized for heat or electricity generation In addition, the effluent sludge may be composted or may be used for ... based on thermophilic operation (5060°C) being favorable in terms of hydrolysis and microbial kinetics (Forster-Carneiro et al., 2007; Shuguang et al., 2007; Forster-Carneiro et al., 2008a; Forster-Carneiro ... performance was observed at 30 d HRT, the HRT was again increased to 40 d for performance recovery Substrate concentration was subsequently increased to 40% TS at 40 d HRT In this study, for...
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Catalytic degradation of municipal waste plastics to produce fuel using betonite
Ngày tải lên :
27/11/2013, 21:37
... chemical None coded polymer has been selected for the experiment 100% by weight The temperature used for thermal degradation for muffle furnace at 420ºC and for reactor temperature was 300- 420 ºC ... (Gas Experimental setup A reactor is designed for catalytic degradation of waste plastics The reactor is designed for a capacity of 1kg of feed for every batch trial Using density data of plastics ... range of 400-4000/cm has been used for our sample Result and discussion Physical Analysis The oil samples were analyzed for their physical Figure 2: FTIR spectra for Polypropylene oil sample Table...
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International Review of Industrial and Organizational Psychology 2004 Volume 19 pot
Ngày tải lên :
06/03/2014, 05:20
... not affect performance Mechanisms Linking Role Empowerment and Performance The traditional assumption is that job enrichment promotes performance through motivation in the form of effort (e.g., ... practices with performance differs by sector It is possible, for example, that practices that are most effective within manufacturing companies differ from those that work for financial institutions ... to be important for conceptual and theoretical reasons A possibility that has been largely neglected is that the components are sequentially related For instance, it seems likely that self-determination...
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International Review of Industrial and Organizational Psychology 2003 Volume 18 ppt
Ngày tải lên :
06/03/2014, 05:20
... manufactured from sustainable forestry in which at least two trees are planted for each one used for paper production CONTENTS About the Editors vii List of Contributors ix Editorial Foreword xi Flexible ... tendency to focus on large organizations and on formal policy rather than informal practice There is a growing consensus that the availability of formal FWAs alone is not necessarily indicative ... Pitt-Catsouphes, 1999) Findings that the size of companies is a predictor of FWAs may thus be an artefact of what it is that is measured More informal FWAs may well be more appropriate for small- and mediumsized...
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Publicly Funded Agricultural Research and the Changing Structure of U.S. Agriculture doc
Ngày tải lên :
06/03/2014, 15:20
... increase, and the committee acknowledges these efforts The 2001 Request for Proposals (RFP) for the USDA Fund for Rural America encourages research projects that “help increase farm profitability among ... (BANR) for their efforts throughout the study process and the preparation of this report The committee also would like to acknowledge Fred C White for technical assistance, Anne H (Kate) Kelly for ... Michael Kisielewski for his efforts in preparing the report The committee wishes to extend special thanks to Clara Cohen, Study Director since November, 2000, for her dedicated efforts in shepherding...
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