removal of gaseous pollutants
Occurrence of Polyhydroxyalkanoate as Temporal Carbon Storage Material in Activated Sludge during The Removal of Organic Pollutants
... 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...
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A new hybrid treatment system of bioreactors and electrocoagulation for superior removal of organic and nutrient pollutants from municipal wastewater
... 1c A bundle of the media consisted of thousands of fibers having a total specific surface area of 560–725 m2 mÀ3, and a specific weight of 0.530 ± 0.027 kg mÀ3 Two flat-sheet modules of submerged ... for T-P removal with the advanced aluminum electrodes in continuous mode, a hydraulic retention time of min, and application of a constant electric potential of 10 V, some of the highest removal ... the axis of the agitator at the center of the reactor (Fig 1) The packing ratio of the fibrous was 60 ± 5% based on the volume of the reactor for the attached growth biomass The picture of polypropylene...
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Removal of congo red from wastewater by adsorption onto waste red mud
... 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...
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Báo cáo y học: " Surgical Removal of lipoma from an area with tattooed skin"
... 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 ... obtained from the patient for 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...
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Riverbank filtration: removal of iron, manganese and hardness
... 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...
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Application of Hydrothermal Reaction to Biodegradability Improvement of Refractory Pollutants: Structural Conversion of Di- and Trichloroacetic Acid to Biodegradable Products
... biodegradability of CAAs regardless of the number of attached chlorine atoms The purposes of this research are to investigate the effect of the number of attached chlorine atoms on the reaction mechanism of ... value reached 860 mg / L with reduction of 43 % of total carbon content In case of TCAA, the decomposition of products reached 72 % of total carbon content of TCAA in Since biodegradable products ... beginning of hydrothermal reaction In the total carbon contents of DCAA, 59 % of malic 25 17 27 57 Reaction time (min) b) Products from TCAA Figure Effect of reaction time on the content change of products...
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Improvement of Water Quality by Removal of Suspended Solids and High-speed Biological Filtration in Closed Water Body
... 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...
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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon
... 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...
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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 ... deviation, CV: Coefficient of variation - 12 - Journal of Water and Environment Technology, Vol 7, No 1, 2009 The water qualities of inflow water (IN) and outflow water (OUT) of the equipment are shown...
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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon
... 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...
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Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)
... 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...
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Utilization of activated carbon for the removal of basic dyes in fixed-bed microcolumn
... 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 ... the Removal of Pollutants from Water Environmental Pollution 1990, 66, 33-53 [2] Li, F., Yuasa, A., Ebie, K., and Azuma, Y Microcolumn Test and Model Analysis of Activated Carbon Adsorption 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...
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Photodegradation and removal of phenol and phenolic derivatives from petroleum refinery wastewater using nanoparticles of TiO2
... 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], ... 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 ... pH
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Tài liệu Risk Characterization, Assessment, and Management of Organic Pollutants in Beneficially Used Residual Products pdf
... Mean Maximum Reproduced from Journal of Environmental Quality Published by ASA, CSSA, and SSSA All copyrights reserved Year of sampling Number of samples Number of wastewater treatment plants (WWTPs) ... the target population A common criticism of this method is that selection of single-point estimates are subjective and profoundly affect the prediction of risk In addition, information on the ... Maximum percentile Year of sampling Number of samples Number of wastewater treatment plants (WWTPs) 2002 52 17 2000–2001 200 171 Polychlorinated dibenzodioxins 12.5 and dibenzofurans (PCDD/Fs) (total...
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Báo cáo " Estimation of emission factors of air pollutants from the road traffic in Ho Chi Minh City " docx
... emission of air pollutants; NMC, NLDVs, NHVDs are traffic volumes for MC, LDVs, and HDVs; qMC, qLDVs, qHVDs are emission factors of air pollutants for each type of vehicles; i is the time of estimating ... difference of components in the fuel types used; type and age of the engines; circulation conditions of vehicles; topography of the study area Conclusions Based on the advantages and disadvantages of ... estimate the dispersion function, the accuracy of the estimated emissions will depend on the ability of the model to reproduce the dispersion of the pollutants Until now, in Vietnam in general and...
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Báo cáo "Reseach on the removal of hexavalent chromium from aqueous solution by iron nanoparticles " doc
... Conclusion The removal of Cr(VI) by Fe0 nanoparticles was studied, the concentration of Fe0 nanoparticles had effect on the reduction of Cr(VI) When the mass ratio of Fe0 to Cr(VI) was 50:1, 100% removal ... the concentration of initial Cr(VI) After 20 minutes, the removal is 100% at concentration of 2mg/l and 69.32% at concentration of 5mg/l When treatment time increased then Cr(VI) removal efficiency ... mg/l Fig Effect of iron nanoparticals concentration Cr(VI) = 5.0 mg/l 0.6 0.4 0.2 0 10 20 30 40 50 60 Time(min) Fig Effect of initial Cr(VI) concentration on the rate of Cr(VI) removal efficiency...
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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
... location of targeted proteins in living tissue avoids the potential artefacts of in vitro systems, in particular their lack of specificity Furthermore, the stability of GFP ensures that problems of ... punctate pattern of these smaller organelles is apparent The scale bar in all images is 10 lm Effect of alteration of phosphorylation site on GFP-targeting by transit peptides of pea SSU and dual-targeted ... transit peptides of two amino Ó FEBS 2004 Chloroplast targeting fidelity (Eur J Biochem 271) 513 Fig The effect of mutagenesis of the phosphorylation site in the transit peptide of tobacco SSU on...
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Consultation on the Removal of Speaking and Listening Assessment from GCSE English and GCSE English Language ppt
... analysis of these proposals, which is published separately.3 www.ofqual.gov.uk/files/2013-04-25-equality-analysis-speaking-and-listening-changes.pdf Ofqual 2013 Consultation on the Removal of Speaking ... line of the email Post your response to GCSE English consultation, Ofqual, Spring Place, Coventry Business Park, Herald Avenue, Coventry, CV5 6UB Ofqual 2013 12 Consultation on the Removal of ... grade because of a strong performance in speaking and listening may achieve a lower grade Conversely, students who would not have performed Ofqual 2013 Consultation on the Removal of Speaking and...
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removal of basic blue 159 from aqueous solution using
... et al., J Appl Chem Res., 7, 4, 51-62 (2013) 56 Effect of the mass of adsorbent dye removal percentage by different masses of The removal of BB159 by banana peel were adsorbent is shown The results ... shown that if the pH of a solution is higher than to,(1) the surface charge of the adsorbent, (2) the the value of pH pzc, the surface of the adsorbent degree of ionization of the adsorptive molecule ... Effect of adsorbent dose on the adsorption of BB159 on banana peel Effect of pH of BB159 by banana peel It was revealed that The pH of the dye solution is one of the most the decolonization efficiency...
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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
... was able to remove maximum of 65.85% of the PO43- by day 14 of the experiment Compared with the majority of other seaweeds, the performance of Sargassum in phosphate removal in this study was ... to act as a biofilter because of its capacity of nitrogen metabolism in the ocean environment (Hanson 1977, Phlips et al 1986) The aim of this study was to evaluate the efficacy of Sargassum sp ... than 25% of the PO43- from an integrated system Troell et al (1997) showed that G chinensis would be capable of removing 27% of the phosphate from salmon cages Similarly, the removal rate of total...
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Tìm thêm: xác định các mục tiêu của chương trình khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 thông tin liên lạc và các dịch vụ từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng 9 tr 25