removal of dry participate matter

Removal of Nutrients, Organic Matter and Heavy Metals from Paddy Field Drainage by Charcoal

... structure of this equipment Relation of removal ability among substances As the removal ability of a substance may be affected by other substances, we investigated the correlation of reduction ... removal is filtration at 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 ... Secondly, the correlations of the reduction rate, which means removal ratio among the substances, were investigated to identify the effect of interaction among them on the removal characteristics...

Báo cáo lâm nghiệp: "Above- and belowground distribution of dry matter and carbon biomass of Atlantic beech (Fagus sylvatica L.) in a time sequence" doc

Danh mục: Báo cáo khoa học

... ground, would consist of 32 t/ha (16 t/ha of carbon) of wood with diameters less than cm, and 75 t/ha (36 t/ha of carbon) of wood between and cm diameter; (2) quantities of to cm fire wood exported ... 145-years-old The simulation of the changes in the processes of immobilisation of standing dry matter demonstrated a plateau between the 50- and the 80-year-old stages and the shape of the production table ... logarithmic Examples of these models are given in Table III These values could only be applied to the C130 results In general, the models were good estimates of the dry matter of each component...

Báo cáo lâm nghiệp: "Allocation of dry matter in Eucalyptus in response to nitrogen supply grandis seedling" ppsx

Danh mục: Báo cáo khoa học

... growth and allocation of dry matter by analysis of shoot/root ratio (mass of top/mass of root) but use of this ratio has frequently led to incorrect interpretations because of failure to recognise ... (Ledig et al., 1970) Comparison of shoot/root ratio of plants of different sizes is therefore open to serious criticism Comparison of regression coefficients of the allometric formula has been ... influences on allocation of dry matter, among leaf, stem and root components in woody perennials, and nutrient effects are so omission of this variable compromise results complex profound that will seriously...

Kinetics of natural organic matter as the initiator, promoter and inhibitor in water ozonation and its influences on the removal of ibuprofen

Danh mục: Thạc sĩ - Cao học

... influences of NOM on the removal of ibuprofen in the presence of carbonate alkalinity The experimental results and model simulation revealed that the presence of NOM generally enhanced the removal of ... 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, ... 80 Table 5.2 Influences of SRFA on the removal of selected pharmaceutical and organic compounds 83 ix LIST OF FIGURES Figure 1.1 Reactions of ozone with the presence of foreign compounds acting...

Removal of congo red from wastewater by adsorption onto waste red mud

Danh mục: Môi trường

... Fe(III)/Cr(III) Namasivayam of dairy (11) and coworkers from employed solutions of using containing congo fly ash and coal(g) et al (12) have of nickel of this a textile such of chlorophenol study ... formation higher to This of red mud is also at solid/solution solution pH range of alkalinity final dye removal after to explain in adsorption basis of final pH in the important removal pH 11 the due ... of contact time and concentration Figure initial The concentration removal contact until of time was rapid gradually concentrations 36.5 10 to $ to 40 mg/L continuous surface used agitation of...

Báo cáo y học: " Surgical Removal of lipoma from an area with tattooed skin"

Danh mục: Y học thưởng thức

... similar case of surgical removal of lipoma from an area with tattooed skin using this aesthetic procedure was found in literature The intent of the case study is to highlight the use of pre-existing ... to meet the need of our patient of removing the lipomatous formation while keeping the tattoo intact, during the surgical treatment of the lipoma, we followed the exact lines of the tattoo itself ... publication of this case report and accompanying images A copy of the written consent is available for review by the Editor-in-Chief of this journal AUTHORS' CONTRIBUTIONS FI, FMA, AS and RC participated...

Sensory characterization of dry-cured ham using free-choice profiling

Danh mục: Nông nghiệp

... lx) First of all, consumers were briefed on the concept of the methodology and the procedure The aim of this was to allow for development of the vocabulary to describe the four types of dry- cured ... 55.58% of the Table Demographic, socio-economic characteristics and frequency of dry- cured ham consumption of the participants (% of respondents, n = 109) Socio-demographic characteristic % of respondents ... characteristics and frequency of dry- cured ham consumption of the consumers involved in the present study are shown in Table About 44.0% of the consumers were men and 56.0% women and most of them were aged...

Riverbank filtration: removal of iron, manganese and hardness

Danh mục: Môi trường

... method, a majority of the people in the lower part of the river is dissatisfied with the quality of tap water Moreover, in case of accidental spill of pollutant, the distribution of water should ... DISCUSSION Nanofiltration of hardness removal Three types of nanofiltration membrane such as UTC-60(TORAY), NTR729-HF(NITTO DENCO) and UTC-20(TORAY) was used The characteristics of membrane were ... characteristics of membrane were shown in Table Table Characteristics of nanofiltration membrane Percent removal of NaCl Percent removal of MgSO4 at 25℃ at 25℃ Type Material Charge NTR729HF Polyvinyl...

Improvement of Water Quality by Removal of Suspended Solids and High-speed Biological Filtration in Closed Water Body

Danh mục: Môi trường

... system, and the removal of nitrogen should be considered, too References [1] Department of Water Environment, Ministry of the Environment, Japan July 2002 Outline of Administration of Water Environment ... outlet of equipment Transparency[cm] 60 out of experimental area 50 40 30 20 10 10 15 20 25 30 35 40 45 50 Time[d] Figure Variation of Transparency Variation of COD concentration Variation of COD ... influence of these disturbances was found Some sampling points were selected They are the outlet of plant, the outside of experimental area, points of horizontal level and 0.5, 1.0, 1.5 m of vertical...

Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge

Danh mục: Môi trường

... The 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 ... effect of biofilm on the adsorption capacity of PAC, PAC covered with biofilm was made and its adsorption capacity was compared to the adsorption capacity of new PAC repeated times For biofilm ... the amount of 3,5-DCP in influent and the amount of 3,5-DCP discharged and biodegraded The amount of Cl- in effluent was estimated as the amount of 3,5 DCP biodegradation The amount of 3,5-DCP...

Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon

Danh mục: Môi trường

... 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 of 1.22m3/m3 ... 6mL/min (or space velocity of 0.98-1.47m3/m3h), pH of 7-8, and initial arsenic concentration of 0.1-0.5mg/L, to obtain a breakthrough time of more than 100 hours The operation of the column is very ... with a total volume of 1000mL This stock solution has an arsenic concentration of 1000mg/L - 44 - Journal of Water and Environment Technology, Vol 6, No.1, 2008 Table Composition of synthetic groundwater...

Occurrence of Polyhydroxyalkanoate as Temporal Carbon Storage Material in Activated Sludge during The Removal of Organic Pollutants

Danh mục: Môi trường

... activated sludge reactor was lyophilized After the addition of 2mL of chloroform and acidified methanol (10% sulfuric acid with around 100mg/L of benzoic acid), the content in the tube was mixed well, ... rate of 30mL/minute Sodium 3-hydroxybutyrate (Tokyo Chemical Industry, Japan) was used as the standard for 3-hydroxybutyrate (3HB) unit in PHA The copolymer composed of 81% of 3HB and 19% of 3-hydroxyvalerate ... microaerophilic zone of MO reactor These results support that temporal carbon storage is one of the important processes for the DOC removal in activated sludge CONCLUSIONS The occurrence of temporal carbon...

Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon

Danh mục: Môi trường

... investigate the effects of pH values within the range of 5-9, of initial arsenic concentrations within the range of 1.42 - 7.39 mg/L and of adsorbent doses within the range of 0.5 - 5.0g/L, as well ... on arsenic removal for samples containing RH-Fe5%, particle size of 0.1-0.35 mm, with Co of 1.42-7.38 mg/L, adsorbent dose of 2.5 g/L, pH of simulated groundwater (pH 8.18) Comparison of adsorption ... of pseudo-2nd order kinetics on arsenic removal for samples containing RH-Fe5%, particle size of 0.1-0.35 mm, with adsorbent dose of 2.5 g/L, pH of simulated groundwater (pH8.18) Comparison of...

Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)

Danh mục: Môi trường

... concentration of cadmium was 10 mg-Cd/L, the volume of solution was 50 mL, and the amount of charcoal was 20 mg Three days from the start of contact (concentration of cadmium was mg-Cd/L, amount of cadmium ... 1.1 N 0.5 Ash 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 ... (2002) Removal of Copper(II) and Cadmium(II) in Water by Use of Roasted Coffee Beans, J Chem Soc Japan, No 3, 459-461 (In Japanese) Petrov N., Budinova T and Khavesov I (1992) Adsorption of the...

Biological Alteration of Zinc Complexation Characteristics of Dissolved Organic Matter in Domestic Wastewater Treatment Plant Effluent under River Water Environment

Danh mục: Môi trường

... the first days of incubation period and became persistent This degradation of binding sites was also in line with the increment of labile Zn concentration during the first days of incubation Consequently, ... weeks of pre-incubation period, indicating the availability and activities of microorganism in river water However, as shown in Fig 3, there was no considerable change of DOC in the mixture of DOM ... of DOM of WWTP effluents and pre-incubated river water within the first week of incubation Slight DOC reduction (14%) was observed after one month of incubation In contrast to the results of the...

Influence of Phosphorus Concentration on the Biodegradation of Dissolved Organic Matter in Lake Biwa, Japan

Danh mục: Môi trường

... 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 ... 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 ... water samples are the same, CODMn of both samples are generally different, because the ratio of CODMn to DOC is generally changed by the composition of organic matter in the sample Therefore, it...

Utilization of activated carbon for the removal of basic dyes in fixed-bed microcolumn

Danh mục: Môi trường

... flowrate of the liquid (3) The adsorbent exhaustion rate is the mass of adsorbent used per volume of liquid treated at breakthrough: Adsorbent Exhaustio rate (g/dm ) = Mass of adsorbent used Volume of ... calibration of fixed-bed adsorption models with microcolumn data could satisfactorily simulate the bed performance for large column The focus of this work is directed at the evaluation of the success of ... prediction of column adsorption process requires prediction of breakthrough curves for the effluent The maximum adsorption capacity of an adsorbent is also required in the design of the column...

Photodegradation and removal of phenol and phenolic derivatives from petroleum refinery wastewater using nanoparticles of TiO2

Danh mục: Môi trường

... the discovery of the photocatalytic properties of TiO2 and the demonstration of its effectiveness to generate hydroxyl radicals in the presence of UV light [8] The more activity of the UV/TiO2 ... adsorption of phenolic compounds by TiO2 particles, or to the volatility of a part of light hydrocarbons due to the air flow or heating the reactor Figure The effect of UV light on degradation of phenolic ... be argued with the help of pH of zero point of charge (pHzpc) and the adsorption of the pollutants on the catalyst Since TiO2 has an amphoteric character with a point of zero charge 6.25 [26],...

LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-SHORT STORY BY O’HENRY- The Indian Summer Of Dry Valley

Danh mục: Kỹ năng đọc tiếng Anh

... widow with a pack of children that gave the husbandman frequent anxious misgivings In the woman there was a strain of the Spanish She had wedded one of the name of O'Brien Dry Valley was a connoisseur ... sudden end Of course Mrs O'Brien favoured the match as soon as Dry Valley's intentions were disclosed Being the mother of a woman child, and therefore a charter member of the Ancient Order of the ... strawberry patch To the outraged vision of Dry Valley there seemed to be a sheep corral full of them; perhaps they numbered five or six Between the rows of green plants they were stooped, hopping...

The Cross-State Air Pollution Rule: Reducing the Interstate Transport of Fine Particulate Matter and Ozone potx

Danh mục: Điện - Điện tử

... MORE INFORMATION To see or download a copy of the final rule, go to www.epa.gov/airtransport For more information, call Meg Victor of EPA’s Office of Atmospheric Programs at 202-343-9193 or email ... million tons per year of SO2 (2005 emissions were 8.8 million tons)  1.4 million tons per year of NOX (2005 emissions were 2.6 million tons) o Including 340,000 tons per year of NOX during the ozone ... Approximately 70 percent of the power generated from coal-fired power plants will come from units with state -of- the-art SO2 controls (such as scrubbers)  Approximately 50 percent of the power generated...

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