algae removal by flotation
THE NITRATE NITROGEN POLLUTION AND THE NITROGEN REMOVAL BY PADDY FIELD IN AGRICULTURAL AREA
... in nitrogen removal NITROGEN REMOVAL TEST Nitrogen removal function is based on vegetation absorption and a denitrification In the non-vegetation plot removal is mostly performed by denitrification ... organic matter is supplied by the generation of algae and nitrogen removal is thus sustainable In order to explore the mechanism of nitrogen removal, experiments were conducted by sampling soil in thin ... performed by denitrification but there are also signs of algae growing there The organic matter supplied by the withering death of these algae played a big role in the durability of nitrogen -...
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Cadmium Removal by the Hydroponic Culture of Giant Reed (Arundo donax) and Its Concentration in the Plant
... total culture broth was set as L and was circulated by a liquid pump To avoid the direct effects on the removal of cadmium and phosphorus by parts other than the rhizome, the water level of the ... multi-functional wetland The purposes of this study are thus to clarify the dynamics of cadmium removal by giant reed, and investigate its concentration in plant body The dynamics of cadmium in soil ... metals pollute the water environment In this study, we especially focused on cadmium removal from the surface water by constructed wetland, because of its toxicity (e.g., Shimoi et al., 2007), and...
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Tài liệu Air pollution removal by urban trees and shrubs in the United States pptx
... pollution removal by urban trees over a 5-year period in Chicago (199 1-1995) reveals that annual removal estimates were within 10% of the 5-year average removal rate Estimates of pollution removal ... total removal) All of these factors combine to affect total pollution removal and the standard pollution removal rate per unit tree cover, Jacksonville's urban forest had the largest total removal, ... removal by all urban trees in the United States, national pollution concentration data (all EPA monitors) were combined with standardized local or regional pollution removal rates Pollution removal...
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Quantifying air pollution removal by green roofs in Chicago pptx
... showed that air pollutant removal by green roofs in Chicago was affected by air pollutant concentrations, weather conditions, and the growth of plants The highest air pollutant removal occurred in ... Stevens, J.C., 2006 Air pollution removal by urban trees and shrubs in the United States Urban Forestry & Urban Greening 4, 115–123 Nowak, D.J., 1994 Air pollution removal by Chicago’s urban forest General ... used These estimates were reached by assuming the NO2 uptake rates by green roof plants were constant This could be problematic because NO2 uptake is influenced by many factors (e.g., meteorological...
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Báo cáo y học: "Resolution of cast nephropathy following free light chain removal by haemodialysis in a patient with multiple myeloma: a case report" ppsx
... nephropathy Monoclonal free light chains (FLCs) are freely filtered by the glomerulus, following which they are reabsorbed and metabolised by the proximal tubule epithelium When the burden of filtered ... connected by lines The concentration at the start of the first pulse of dexamethasone is also shown The arrowheads represent daily doses of dexamethasone Daily thalidomide is indicated by the solid ... fallen significantly, indicating a strong tumour killing effect Following commencement of FLC removal by dialysis, the concentrations continued to fall Five weeks after commencement of dexamethasone,...
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Boron removal by reverse osmosis membranes
... Boron removal by RO membranes 4.2.1 Boron removal at different pH and fluxes 4.2.2 Boron removal at different salinities and pH 4.2.3 Boron removal at different salinities and pH 10 4.2.4 Boron removal ... salinity on boron removals by BWRO membranes at pH 9… 86 Figure 4.12 Effect of salinity on boron removals by ESPAB & SWC4+ at pH 9… 87 Figure 4.13 Effect of salinity on boron removal by BWRO membranes ... membranes at pH 10…92 Boron removal by RO membranes x Figure 4.14 Effect of salinity on boron removal by BWRO membranes at pH 7… 94 Figure 4.15 Effect of salinity on boron removal by ESPAB and SWC4+ at...
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Removal of congo red from wastewater by adsorption onto waste red mud
... Namasivayam, and C and Technol., by by solutions K of waste congo slurry red J 53 : 153 - 157 (1992) N Removal waste : 32 - 42 N Removal celluosic Removal biogas by Technol Muniasamy, (1996) T ... bottles a at shaker adsorbent removal were was 140 carried pH (7.3) with rpm machine out at The room dye by centrifugation estimated spectro- 404 photometrically wavelength by monitoring of maximum ... R wastewater and by hydroxide Yamuna, R adsorption Waste T on Dye waste Management, : 14 (1994) S., Prasad, G and chrome dye from aqueous : ash fly by : Indian - Jeyakumar, removal red Adsorption...
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BIOLOGICAL NITROGEN REMOVAL FOR LONG-TERM LANDFILL LEACHATE BY USING MLE PROCES
... 0.6 0.7 0.8 loading rate (kg/kgVSS/day) Fig Variation of removal efficiency and removal rate (a) BOD and CODCr removal efficiency (b) removal rate - 158 - Journal of Water and Environment Technology, ... Fig Variation of effluent nitrogen concentration and removal efficiency (a)eff nitrogen concentration, (b)nitrogen removal efficiency The removal rates of T-N and NH4+-N according to increase ... Fig 10 Variation of nitrogen removal rate to loading rate Fig Variation of effluent nitrogen concentration and removal efficiency (a) T-N, NH4+-N concentration , (b) removal efficiency Nitrogen-oxide(NO2...
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Improvement of Water Quality by Removal of Suspended Solids and High-speed Biological Filtration in Closed Water Body
... upflow arrangements of flow third tank Figure Schematic diagram for improvement of water quality by removal of SS and biological filtration in closed water bodies a a: screw motor Ｍ b: biological ... Technology, Vol.1, No.2, 2003 Conclusion The experiment on improving water quality was carried out by removal of SS and biological filtration in the closed water body, Tokiwako Lake in Ube city The ... is 3.4 m, minimum is 1.4 m, and average is 2.3 m Water depth changes around 0.4 m (up and down) by various reasons This plant was floated and fixed at the center of the raft Lake water was - 234...
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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon
... adsorbent, but AC has low arsenic removal capacity The percentage removal of As[III] by AC is just 50% (Prasenjit et al., 2007) However, it can be improved by its surface modification with metals ... that flow rate is one of the most important parameters to look at in column study for arsenic removal by sequential combination of LA and AC-Fe In Figure 10, at flow rate of 5mL/min or space velocity ... flow rate, the smaller the film resistance, implying that arsenic adsorption by LA or/and ACFe may be controlled by intra-particle diffusion 0.2 F = 5mL/min F= 30mL/min C/Co 0.15 F = 15mL/min...
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DMF Decomposition and Nitrogen Removal Performance by a Mesh-Filtration Bioreactor under Acidic Conditions
... determined by using a TOC analyzer (TOC-5000, Shimadzu, Kyoto, Japan) Ammonia and nitrite were analyzed by phenate method [15] and by colarimetric method [16], respectively Nitrate was analyzed by an ... biomass in the reactor was monitored by double staining with CTC and SYBR green The proportion of cells stained by both CTC and SYBR green relative to those stained by SYBR green alone was 33.0% ± ... mg-DMF·L-1) contained 191.8 mg·L-1 of nitrogen, so evaluation of total nitrogen (T-N) removal by biological DMF removal processes is also important We examined the profiles of the nitrogen components...
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Removal of Nutrients, Organic Matter and Heavy Metals from Paddy Field Drainage by Charcoal
... indicated by the arrows in Fig 1(b) The nylon net bags containing charcoal were placed one each in the three longitudinal spaces formed by the partitions In order to reduce clogging of the equipment by ... Japan), DOM was less often analyzed by using a spectrophotometer (UVmini-1240, Shimadzu, Japan), TP by the persulfate decomposition method and molybdenum by the blue absorption metrical method ... means removal ratio among the substances, were investigated to identify the effect of interaction among them on the removal characteristics RESULTS AND DISCUSSION Relationship between removal...
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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon
... arsenic content was analyzed by ICP-MS (Seiko SII) RESULTS AND DISCUSSION Effect of pH The pH is an important factor in the removal of arsenic by adsorption, especially by employing aluminum or iron-modified ... percentage removal of total arsenic was 68.77, 81.99 and 88.00% for pH of 5, and 9, respectively The same behavior was observed in the study by Mondal et al (2007a) for the removal of arsenic by GAC-Fe ... (1999) Removal of arsenic(V) from aqueous solution by quaternized rice husk Environmental Technology, 20(9), 971-978 Lien, H and R T Wilkin (2005) High-level arsenate removal from groundwater by...
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Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)
... CONCLUSIONS Removal of cadmium from aqueous solutions by the charcoals prepared from the stalk of giant reed was investigated based on the beneficial utilization of giant reed As a result, its high removal ... their cadmium removal capacity MATERIALS AND METHODS Carbonization Fertilized giant reed grown at a managed area in the Kanto Plain, Japan, was used for experiments The stalk was milled by a mortar, ... 3.1 Journal of Water and Environment Technology, Vol 8, No.4, 2010 Removal of cadmium from aqueous solutions For estimating the removal rate, time courses of cadmium concentration in aqueous solution...
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Tài liệu Báo cáo "Arsenic removal from water by magnetic Fe1-xCoxFe2O4 and Fe1-yNiyFe2O4 nanoparticles " pptx
... which proved that the nanoparticles can be reused for arsenic removal Table Arsenic concentration (µg/l) remained in water after removal by g/l of the Co-ferrites as a function of the stirring time ... Materials and methods Magnetite particles with size of 15 nm were prepared by conventional coprecipitation of Fe3+ and Fe2+ ions by OH− at room temperature In a typical synthesis, 4.17 g of FeCl3.6H2O ... were formed and isolated from the solvent by magnetic decantation Water washing and decantation process were repeated four times to remove excess solution By a similar way, Fe1−xNixO.Fe2O3 and Fe1−yCoy.Fe2O3...
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Báo cáo "Reseach on the removal of hexavalent chromium from aqueous solution by iron nanoparticles " doc
... to Cr(VI) was 50:1, 100% removal efficency was achieved pH has important effect on Cr(VI) removal efficiency, the optimal pH was from 2.5 to Cr(VI) removal efficiency by iron nanoparticles was ... Cr(VI) removal efficiency Fig show that Cr(VI) removal efficiency of nanoparticles was higher than Fe powder about times Namely, after 10 minutes, 98.8% Cr(VI) concentration was removed by iron ... iron nanoparticals, while only 24.75% Cr(VI) concentration was removed by iron powder Conclusion The removal of Cr(VI) by Fe0 nanoparticles was studied, the concentration of Fe0 nanoparticles...
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Báo cáo " Hazard removal solution by synchronization " pdf
... immediately sensed by the flip-flop and the case in which RDY is not sensed until the next positive clock edge are shown In the latter case, the response to the change in RDY is delayed by an extra ... gathered over 30 minutes The normal delay from the Clock to Q is 13 ns as indicated by the dotted line But by carefully controlling the timing of the changes in D and the Clock, the flip-flop ... example will see a value on the synchronizing flip-flop output RDY_S that is between and Response by the two flip-flops to such a value is unpredictable, so there is a good chance that the circuit...
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Báo cáo khoa học: De-regulation of D-3-phosphoglycerate dehydrogenase by domain removal ppt
... regulated by serine [18], have not shed the serine-binding domain As shown in Fig 1, the PGDH tetramer has two major types of subunit interfaces Removal of the subunit contacts formed by the regulatory ... form by chromatography on a glutathione column followed by proteolysis with thrombin to remove the GST tag (data not shown) Unlike the NSD proteins, RBD:336–410 could not be characterized by a ... increased to 500 mM The reaction was initiated by the addition of substrate and the decrease in D340 monitored for 10–20 s The initial rates were determined by fitting a linear regression to the curve...
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Báo cáo khóa học: Fidelity of targeting to chloroplasts is not affected by removal of the phosphorylation site from the transit peptide doc
... transformation of the construct into plant cells by particle bombardment, the targeting of the GFP by the transit peptide was viewed directly in living cells by confocal microscopy Similar experiments ... tobacco leaves by biolistic transformation, and after 16–24 h in the dark at 25 °C, cells exhibiting GFP fluorescence were identified by epifluorescence These were examined further by confocal microscopy ... were made by translation into a wheat germ system in the presence of [35S]methionine and [35S]cysteine The radiolabelled precursors were incubated with isolated pea chloroplasts, followed by reisolation...
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Báo cáo khoa học nông nghiệp " Removal of nutrients by integrating seaweed Sargassum sp. into western king prawn (Penaeus latisulcatus, Kishinouye 1896) culture " docx
... et al 2004) One possible approach is integrating prawns and macroalgae where macroalgae is expected to absorb nutrients Macroalgae species such as Ulva, Porphyra and Gracilaria have been proven ... which showed a significant decrease and TN which showed a various removal rates (Table 1) The removal efficiency of both DIN and TN by Sargassum in the present study were generally higher (35.82-52.57% ... 70 postlarvae per m2 (PL25-27) by Chen et al (1989) and 20-25 juveniles per m2 by Thakur and Lin (2003) Mean prawn survival rate was not significantly affected by the presence of seaweed, with...
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