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Radionica
II dan
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MICRO-OXYMAX
RESPIROMETAR
Branka Lončarević,
Istraživač pripravnik, Institut za hemiju, tehnologiju i metalurgiju
Univerziteta u Beogradu
22.11.2018.
Beograd
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Micro-Oxymax respirometar, Columbus Instruments, Ohio
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PRINCIP RADA
INSTRUMENTA
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OSNOVNI DELOVI SISTEMA:
Boce za uzorke
„Condensing air drier“
Senzori
Napajanja
Pumpa za vazduh
2 termometra
Sistemska pumpa za uzorke
Kalibracioni gasovi
„Gas Sample drier“
„Expansion interface“
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Kolone sa drajeritom (sušilo)
Creva koja povezuju kalibracione gasove i
sistemsku pumpu za uzorke
Creva koja povezuju kolone sa drajeritom i
„sample drier“
Gumice, inserti, čepovi za boce
0.2 μm filteri
„Sample drier connections“
Ostali konektori
OSTALI DELOVI:
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H2
NO2
H2S
O2
SPISAK SENZORA
CH4
CO
CO2 (0-1 %)
CO2 (0-1 %)
IZMENLJIVI SENZORI
CO2 (0-1 %) ↔ CO2 (0-10 %)
O2 ↔ NO2
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SENZORI
Elektrohemijske ćelije
H2, NO2 i H2S senzori
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IR senzori
CH4, CO i CO2 senzori
SENZORI
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Paramagnetni senzor
O2
SENZORI
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„Closed Loop
Measurement
Method” – Metoda
merenja pomoću
zatvorene petlje
Brojevi patenata:
4947339 (SAD);
0372429 (Evropa);
2117492 (Japan).
PRINCIP RADA
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PRINCIP RADA
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NAČINI POSTAVKE
EKSPERIMENATA
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NAČINI POSTAVKE EKSPERIMENATA
OTVORENI
SISTEM ZATVORENI
SISTEM
ANAEROBNI
SISTEM
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ZATVOREN SISTEM
Closed flow operation - tehnička i softverska priprema
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Open flow operation
Za veoma aktivne uzorke
Meri se nivo vazduha koji prolazi kroz boce i
koncentracije gasova na ulazu i izlazu iz boca.
Potom, iz te tri koncentracije se preračunava
produkcija/konzumacija gasova.
OTVOREN SISTEM
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Tehnička i
softverska
priprema
Početni protok
300 mL/min
(podešava se po
potrebi).
OTVOREN SISTEM
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Anaerobic operation
(tehnička i softverska
priprema) 2 načina :
1. metoda sa dve boce;
2. metoda sa azotom.
Metoda sa 2 boce:
Reaktor boca →
jednosmerna veza → boca
za uzorkovanje →
„expansion interface“
ANAEROBNI SISTEM
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KALIBRACIJA
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KALIBRACIJA
Pre svakog merenja
Svi senzori imaju dve tačke kalibracije:
1. 0 (nula) gasa;
2. Raspon („span“) gasa
Prvo proveriti
senzore:
FILE →
PROPERTIES
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KALIBRACIJA
Potom: TOOLS → CALIBRATION → START
CALIBRATION
Podesiti protok na 500 mL/min → OK
Connect bottle 4...
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KALIBRACIJA
NEXT GAS...
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SOFTVERSKA
POSTAVKA
EKSPERIMENTA
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SOFTVERSKA POSTAVKA
EKSPERIMENTA
CHAMBER
SET UP
EXPERIMENT
SET UP
COMMENTS RUN
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EXPERIMENT SET UP
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Start/End Chamber
Refresh
Auto Volume Measurement
Purge sensors
Switch Driers – kod dugotrajnih eksperimenata
O2 Consumtion positive
Enable Open Flow Mode
Anaerobic venting mode
EXPERIMENT SET UP
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Sample Interval – minimum 12 min (6 min.
uzorak + 6 min. referentna boca)
Experiment Duration – N.A. (run→stop)
Data Units – gas units (μL, mL, mg, μM), time
units (min,h), normalization units (preračunava po
masi životinje)
Manualy Enter Chamber Temps. – kada postoji
više od dve temperaturne probe
Aux(iliary). Temp. Start. Chanel – daje se
komanda koji kanal je vezan za koji termometar
EXPERIMENT SET UP
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CHAMBER SET UP
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Utilities
1. Merenje zapremina (Volume test):
a) Merenje zapremine senzora (250-320 mL);
b) Merenje zapremine boca (samo za V do 2 L).
2. Provera curenja sistema (Leakage test)
- Normalna vrednost je +/- 0,5 mL/min.
CHAMBER SET UP
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COMMENTS
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SOFTVERSKO
PRIKAZIVANJE
REZULTATA
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SOFTVERSKA POSTAVKA EKSPERIMENTA
I PRIKAZIVANJE REZULTATA
CHAMBER
SET UP
EXPERIMENT
SET UP COMMENTS
RUN DATA GRAPHING
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DATA
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Int Colum. – interval;
Ch Colum. – kanal, odnosno, broj boce;
Time Culumn. – vreme uzorkovanja;
Ch_Temp. – temperatura u boci tokom tog ciklusa merenja;
RQ (RER) – Respiration Exchange Ratio (ΔCO2/ΔO2);
Gas % - Koncentracija gasa u boci tokom ciklusa merenja;
Gas rate – nivo proizvodnje (+) / potrošnje gasa (-);
Gas acumulation – ukupna količina promene gasa od početka eksperimenta.
DATA
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DATA STATUS
R - refresh
+ CP – pritisak u boci viši od uobičajenog opsega
- CP – pritisak u boci niži od uobičajenog opsega
+ PP – pritisak u senzorima viši od uobičajenog opsega
- PP – pritisak u senzorima niži od uobičajenog opsega
+ CO2 – nivo ovog gasa viši od normalnog opsega
merenja senzora
- O2 - nivo ovog gasa niži od normalnog opsega
merenja senzora
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GRAPHING
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REZULTATI
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Aromatični ugljovodonici su grupa cikličnih ugljovodonika. Podeljeni su na monociklične ugljovodonike tzv. BTEX jedinjenja (BTEX, eng. Benzene, Toluene, Ethylbenzene, Xylene) i na policiklične aromatične ugljovodonike (eng. Polycyclic aromatic hydrocarbons - PAH).
DEGRADACIJA AROMATIČNE FRAKCIJE
DIZELA
Procenjuje se da se u prosečnom uzorku
sirove nafte nalazi 67% benzenskih, 18%
naftalenskih, 8% fenantrenskih, 3%
hrizenskih i benzfluorenskih, 2% pirenskih
i oko 1% antracenskih struktura.
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Respiracija soja Rhodoccocus
sp. NR31 praćena je tokom 7
dana.
Korišćena je mineralna podloga
sa 1000 ppm aromatične
frakcije izolovane iz dizela kao
izvora ugljenika.
Koncentracija kiseonika i
ugljen-dioksida praćena je u
intervalima od 5h, a sistem je
bio zatvoren.
DEGRADACIJA AROMATIČNE FRAKCIJE
DIZELA - METODA
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DEGRADACIJA AROMATIČNE FRAKCIJE
DIZELA - GRAFICI
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DEGRADACIJA AROMATIČNE FRAKCIJE
DIZELA - GRAFICI
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Lignin čini između 20-30%
drveta, u zavisnosti od vrste.
Nalazi se u ćelijskim
zidovima drveća u
kompleksu sa celuloznim i
hemiceluloznim
polisaharidima
Da bi se proizvela celuloza
pogodna za proizvode od
papira, potrebno je efikasno
odvajanje lignina od
celuloznih vlakana – u tom
procesu kao
nusproizvod nastaje
kraft lignin
DEGRADACIJA KRAFT LIGNINA
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Respiracija sojeva gljiva i Gram negativnih
bakerija tokom rasta na ligninu praćena je tokom
30 dana
Korišćena je mineralna podloga sa 0,25% lignina
kao jedinim izvorom ugljenika.
Koncentracija kiseonika i ugljendioksida
praćena je u zatvorenom sistemu.
DEGRADACIJA KRAFT LIGNINA - METODA
![Page 45: Radionica - University of Belgradehelix.chem.bg.ac.rs/zf/lect/ZF2018_Loncarevic.pdfRadionica II dan MICRO-OXYMAX RESPIROMETAR Branka Lončarevi ć, Istraživač pripravnik, Institut](https://reader030.vdocuments.pub/reader030/viewer/2022040810/5e50017bd52dd55eba0195cf/html5/thumbnails/45.jpg)
DEGRADA
CIJA
KRAFT
LIGNINA:
GRAFICI
![Page 46: Radionica - University of Belgradehelix.chem.bg.ac.rs/zf/lect/ZF2018_Loncarevic.pdfRadionica II dan MICRO-OXYMAX RESPIROMETAR Branka Lončarevi ć, Istraživač pripravnik, Institut](https://reader030.vdocuments.pub/reader030/viewer/2022040810/5e50017bd52dd55eba0195cf/html5/thumbnails/46.jpg)
PUBLIKACIJE
![Page 47: Radionica - University of Belgradehelix.chem.bg.ac.rs/zf/lect/ZF2018_Loncarevic.pdfRadionica II dan MICRO-OXYMAX RESPIROMETAR Branka Lončarevi ć, Istraživač pripravnik, Institut](https://reader030.vdocuments.pub/reader030/viewer/2022040810/5e50017bd52dd55eba0195cf/html5/thumbnails/47.jpg)
PUBLIKACIJE
![Page 48: Radionica - University of Belgradehelix.chem.bg.ac.rs/zf/lect/ZF2018_Loncarevic.pdfRadionica II dan MICRO-OXYMAX RESPIROMETAR Branka Lončarevi ć, Istraživač pripravnik, Institut](https://reader030.vdocuments.pub/reader030/viewer/2022040810/5e50017bd52dd55eba0195cf/html5/thumbnails/48.jpg)
http://www.colinst.com/products/respirometer-
micro-oxymax
![Page 49: Radionica - University of Belgradehelix.chem.bg.ac.rs/zf/lect/ZF2018_Loncarevic.pdfRadionica II dan MICRO-OXYMAX RESPIROMETAR Branka Lončarevi ć, Istraživač pripravnik, Institut](https://reader030.vdocuments.pub/reader030/viewer/2022040810/5e50017bd52dd55eba0195cf/html5/thumbnails/49.jpg)
HVALA
NA
PAŽNJI!
![Page 50: Radionica - University of Belgradehelix.chem.bg.ac.rs/zf/lect/ZF2018_Loncarevic.pdfRadionica II dan MICRO-OXYMAX RESPIROMETAR Branka Lončarevi ć, Istraživač pripravnik, Institut](https://reader030.vdocuments.pub/reader030/viewer/2022040810/5e50017bd52dd55eba0195cf/html5/thumbnails/50.jpg)