Notes on Activated sludge process control

Impact of pH on Anaerobic Substrate Uptake by PAOs and GAOs in an EBPR Activated Sludge Process Analyzed by MAR-FISH

Impact of pH on Anaerobic Substrate Uptake by PAOs and GAOs in an EBPR Activated Sludge Process Analyzed by MAR-FISH
... uptake by Candidatus ‘Accumulibacter phosphatis’ and Candidatus ‘Competibacter phosphatis’ Within the tested pH range (initial pH from to and final pH from to 8), pH had similar impact on anaerobic ... Right: R eutropha ) Effect of pH on acetate uptake by PAOs and GAOs The profiles of pH, acetate uptake, and phosphate release observed in the cold experiments are shown in Figs 2, and In all cases, ... uptake of radio-labeled acetate by Candidatus ‘Accumulibacter phosphatis’ and Candidatus ‘Competibacter phosphatis’ was examined by MAR-FISH, and the results are shown in Figs and Lower initial pH...
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Treatment of Textile Wastewater by a Coupling of Activated Sludge Process with Membrane Separation

Treatment of Textile Wastewater by a Coupling of Activated Sludge Process with Membrane Separation
... tank and a microfiltration membrane as separation apparatus The aeration tank was made from Plexiglas with a working volume of liters Air was supplied to the aeration tank through diffusers at a ... quality, and kinetic parameters were also investigated PERMEATE COMPRESSED AIR INFLUENT AIR SLUDGE WASTE Fig Schematic Diagram of the Coupling of Activated Sludge Process and Membrane Separation ... Reactor Operation The sludge from activated sludge process was acclimatized by the textile wastewater in an aerobic batch tank without the membrane filtration unit Necessary amount of nitrogen and phosphorous...
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A Study on the Optimum Backwashing Method applied to Activated Carbon Process in Waterworks

A Study on the Optimum Backwashing Method applied to Activated Carbon Process in Waterworks
... 2003 The characteristics of a granular activated carbon In a granular activated carbon contact basin, virgin carbon is domestic activated carbon made from palm shell, reactivated carbon means activated ... conditions and methods The study selected basins(2 reactivated, spent carbon basins, and virgin carbon basin) of granular activated carbon from 24 ones in the M water purification plant in Daegu; ... carbon 24 granular activated carbon contact basins consist of buildings each of which has stationary downward filter basins The rate of activated carbon and sand is 250:20(㎝); the under drainage...
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Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge

Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge
... with incubation time In other word, the adsorption capacity of PAC increased with increase in the amount of organic carbon on PAC The adsorption capacity of PAC after 4th incubation was almost the ... of organic carbon on PAC after each incubation Figure Figure shows the adsorption isotherm of new PAC, PAC in the aeration tank, and PAC after 1st and 4th incubation The adsorption capacity of ... decrease the adsorption capacity of PAC for 3,5-DCP To clarify the effect of biofilm on the adsorption capacity of PAC, PAC covered with biofilm was made and its adsorption capacity was compared to the...
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Influence of Polyferric Sulfate Coagulant on the amoA mRNA Expression of Ammonia Oxidizer in Activated Sludge

Influence of Polyferric Sulfate Coagulant on the amoA mRNA Expression of Ammonia Oxidizer in Activated Sludge
... important for further investigation Number of ammonia oxidizers and copy number of amoA mRNA The time courses of the copy number of amoA mRNA and the number of ammonia oxidizer are shown in Fig No significant ... PCR-reaction-1) Community analysis of ammonia oxidizer based on amoA mRNA The difference of the effect of polyferric sulfate on each species of ammonia oxidizer was demonstrated by T-RFLP analysis of ... result of T-RFLP analysis, there is great impact of polyferric sulfate on amoA mRNA expression for some species of ammonia oxidizers Therefore, in the activated sludge process of nitrification-denitrification...
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Notes on Financial Liberalization 1

Notes on Financial Liberalization 1
... IMF Occassional Paper, No.22, 19 83 McKinnon, R The Order of Economic Liberalization: Financial Control in the Transition to a Market Economy, 2nd edition, The Johns Hopkins Studies in Economic Development, ... before moving on to the discussion of the reasons as to why financial liberalization might have led to banking crises.6 It is known that the early record of financial liberalization, taken as ... trade liberalization requires depreciation, while sudden capital inflows that tend to go along with liberalization cause appreciation pressures The latter may derail the trade liberalization process...
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Characteristics of hydrogen production from food waste and waste activated sludge

Characteristics of hydrogen production from food waste and waste activated sludge
... for 3.0 and 5.0 % of total VS concentrations could not be conducted because of low VS concentration of sewage sludge 20 mL of seed sludge and appropriate amounts of food waste and sewage sludge ... produce moles of hydrogen with mole of n-butyrate or moles of hydrogen with mole of acetate from mole of hexose In most cases using soluble defined substrates, hydrogen production yield and major ... typical Korean food waste and sewage sludge Food waste, sampled from a dining hall, was crushed by an electrical blender under anaerobic condition Sewage sludge was sampled from a local wastewater...
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Comparison of Methods for the Extraction of Bioflocculants from Activated Sludge

Comparison of Methods for the Extraction of Bioflocculants from Activated Sludge
... an effort to develop an effective extraction method for bioflocculants from the microbial cell surface Materials and Methods Activated sludge samples Activated sludge samples were collected from ... was the most effective extraction method for activated sludge However, cell disruption is not effective for the isolation of bioflocculants Thus, NaOH extraction was the most effective method for ... polymer extraction methods (steaming extraction, NaOH extraction, SDS extraction, and washing extraction) were compared to develop an effective extraction method for bioflocculants from activated sludge...
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Isolation and characterization of an extracellular polymer closely related to flocculation of activated sludge

Isolation and characterization of an extracellular polymer closely related to flocculation of activated sludge
... natural activated sludge An extracellular polymer was extracted from an activated sludge suspension and was characterized because an extracellular polymer closely related to flocculation of activated ... drawn from the results of the study An extracellular polymer closely related to flocculation of activated sludge was obtained from the sludge suspension by sonication The polymer exhibited flocculating ... Blumenkrantz, N and Asboe-Hansen, G (1973) New method for quantitative determination of uronic acids Anal Biochem., Vol.54, 484-489 Dermlim, W., Prasertsan, P and Doelle, H (1999) Screening and characterization...
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Development of the Quantitative PCR Method for Candidatus ‘Accumulibacter phosphatis’ and Its Application to Activated Sludge

Development of the Quantitative PCR Method for Candidatus ‘Accumulibacter phosphatis’ and Its Application to Activated Sludge
... archaebacteria Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ ... Quantitative PCR and FISH method in Activated sludge The amount of Candidatus ‘Accumulibacter phosphatis’ in the laboratory-scale and the full-scale activated sludge were quantified both by the quantitative ... abundance in activated sludge Nevertheless, quantitative PCR method for Candidatus ‘Accumulibacter phosphatis’ has not been developed yet In this study, quantitative PCR method for Candidatus ‘Accumulibacter...
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Occurrence of Polyhydroxyalkanoate as Temporal Carbon Storage Material in Activated Sludge during The Removal of Organic Pollutants

Occurrence of Polyhydroxyalkanoate as Temporal Carbon Storage Material in Activated Sludge during The Removal of Organic Pollutants
... carbon storage is one of the important processes for the DOC removal in activated sludge CONCLUSIONS The occurrence of temporal carbon storage material, PHA, was confirmed in the course of wastewater ... calculated as the amount of PHA increased during the anaerobic phase divided by the amount of carbon supplied as influent in one cycle For continuous reactors, CRP value was calculated as follows The ... water was added to it, the tube was shaken, and, the methyl ester of PHA monomers in the chloroform layer was collected The chloroform phase was washed again with 0.5mL water, and then injected...
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LECTURE NOTES ON ELECTRICAL & ELECTRONIC TECHNIQUE

LECTURE NOTES ON ELECTRICAL & ELECTRONIC TECHNIQUE
... TCBinh_Laptop_Y0809/_COURSEs_Y0809S1/1_Electrica LECTURE NOTES ON ELECTRICAL & ELECTRONIC TECHNIQUE By Nguyen Nhu Phong Electric Circuits Electric Machines Electronic devices & systems Small Signal Amplifiers ... (I t ), N = const , R f = const Iđm GVC ThS Nguyễn Như Phong It ↓ ↓ → E ↑ → IK → φ It m ↓ → Ut ↓ 1999 KTHTCN - ĐHBK Máy Điện 28/35 KTĐ & ĐT MPMC KÍCH TỪ HỖ HP Với MP kích từ song song: It ↑ → ... → đổi chiều quay động GVC ThS Nguyễn Như Phong 1999 KTHTCN - ĐHBK Máy Điện 22/35 KTĐ & ĐT − Ctt :Moment làm việc lớn, Mm không cao − Cm & Ctt : Mm & Mlv lớn • Động có vòng ngắn mạch: M Mm n1...
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Notes on the TOEFL Exam - Registration, the Computer-Based Test, Scores, and Tips for Test Day

Notes on the TOEFL Exam - Registration, the Computer-Based Test, Scores, and Tips for Test Day
... Registration Phone: 6 2-2 1-8 3 1-7 304 Fax: 6 2-2 1-8 3 1-7 306 JAPAN Prometric KK Kayabacho Tower 15F 1-2 1-1 Shinkawa Chuo-ku Tokyo 10 4-0 033 Japan Registration Phone: 8 1-3 -5 54 1-4 800 Fax: 8 1-3 -5 54 1-4 810 KOREA The ... immediately TOEFL ® Test- Prep Materials from the ETS ® THE Educational Testing Service® offers several TOEFL exam study guides and test- preparation materials to help you get ready for the exam The TOEFL ... a CD-ROM that contains tutorials similar to the ones you will view on the day of the test POWERPREP: Software Preparation for the Computer-Based TOEFL includes two practice computer-based TOEFL...
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