Reverse (EDR) Electrodialysis Reversal RO RO...

Reversal Electrodialysis(EDR)Reverse OsmosisRO

EDRRORO

(2)

(6)

(JIS) B 8223 (7)

scales

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(8)

9

.EDR

(RO)

(product) (EDR)RO

EDR

EDR(10)

RO

psig

%(10)

EDR(RO)

acid functionpHTotal Dissolved Solid TDSTurbidityTurb

pH(WTW720)InoLab 720

Total Dissolved SolidTDS (WTW720InoLab 720ppm

Lovibond swoq/1251NTU



µs. cm-1

ppm

,(200,000 lb/hr) (1,000

psig)

Raw product

deaereatero

CO2O2PPM PPM

0.005o

EDRTDS

product ppmTDS

ROTDS

1944-2664ppm580-734ppmTDSRawppm

ROTDS,ppm

TurbproductRO2.4 -11.2NTU.

MN/m2



EDR

Mg.H(mg/l) Ca.H(mg/l) Turb(NTU) TDS(ppm) pH Sample 200 250 450 614 7.2 Raw 100 200 300 445 7.0 Product

>1000 1353 7.3 Waste 150 300 450 566 8.0 Raw

100 200 300 312 7.8 Product 598 8.3 Waste

160 300 460 516 7.8 Raw

130 190 320 440 7.4 Product 1079 7.7 Waste

100 400 500 625 7.7 Raw

150 200 350 449 7.4 Product 1111 7.8 Waste

100 400 500 625 7.3 Raw

150 200 350 434 7.0 Product

1225 7.4 Waste

RO

Turb, NTU

Mg.H, mg/l Ca.H, mg/l TDS, ppm pH Sample

590 7.9

2410 7.9 892 726 134 1404 8.0 Raw 6.4 6.07 1.26 6.9 Product

2176 1569 607 8.0 Waste 640 8.1

1944 8.1 802 674 131.6 1473 8.0 Raw 5.6 4.6 6.96 90 7.0 Product

1992 1623 369 3211 8.0 Waste 734 8.2

2149 8.1 1020 894 126 1593 8.0 Raw 2.4 1.7 0.64 89 7.2 Product

2038 1717 312 3330 7.9 Waste 620

2538 7.7 187 695 122 1413 8.2 Raw 6.9 5.3 1.6 68 7.1 Product

2190 1650 540 2634 8.5 Waste 580

2664 7.8 855 710 145 1510 7.4 Raw 11.2 8.9 2.2 106 6.8 Product 2500 1360 1140 3929 7.7 Waste



MN/m2

Total Hardness as CaCO3, mg/l, max8.5-9.5pH Value

0.1Dissolved Oxygen mg/l, max

MN/m2

700Total alkalinity as CaCO3, mg/l350caustc alkalinity, mg/l

11-12pH Value30-50 Sodium Sulphate, Na2SO3, mg/l3500 Total dissolved solid,ppm

Less than 0.4 Silica, SiO2

Above 2.5 Na2SO4,

TDSppm

NaOHNa2CO3

(8)



TDS, ppm pH Sample >2000 9.8 1862 9.3 1100 8.0 6608 8.0

SiO2 83%

SO4 2.5% HCO3,CO3

- 1560 ppm Conductivity 1940 µs. cm-1

pH 12.7

product EDRROpHTDS Turb

TDSEDR TDSROEDRRO

ROEDRpHEDRRO

EDR

EDRRO



EDRRO

1- Stephen Michael Elonka, Anthony Lawrence Kohan, (1973). Standard Boiler Operators' Questions And Answers.

2 -Abdel-ameer N.K. and Muslih R.M,(1988). Industrial Microbiology,Bayt Al-Hikma,Baghdad University, p190.

3-Craig F.,(1971). The reservoir engineering aspect of water flooding, Buffer Worth, London, No.3, p233.

4- H. A Assadipour, (1987). Corrosion Industrial problems, treatment and control techniques, Pergaman Press,.p46.

5-R.Norris Shreve & Joseph A.Brink,Jr.(fourth edition 1977). Chemical Process Industries, p54.

6- Mitsubishi Heavy Industries Technical Review Vol.50 No.3(September 2013)

7- Water conditioning for Boiler feed Water and Boiler Water JIS B8223-2006 8- http://www.lenntech.com/applications/process/boiler/scaling.htm 10 Harold W. Ballew, F. Jesus Martinez Cassidy Markee,2002. The ABCs OF

Filtration and Bioprocessing for The Third Millenniumedtors. 11- Osmonics Pure Water Handbook 2nd Edition1997, 12- VII Recommended Guidelines for the -Care of Power Boilers2011. 13- http://www.eng2all.net/vb/showthread.php?t=43976 14-http://www.arab-eng.org/vb/showthread.php/178819-in 15-Indian Standard Specification for Feed Water and Boiler Water for Low amd

Medum Pressures(1983), 3rd Reprint 2008. 9..p51

Studying some of the Physical and Chemical Properties of the Treated Water that Produced from Electrodialysis Reversal Unit Reverse

Osmosis Unit in Al Nasiriya Refinery

Abstract: The present work included comparison between the old water treatment unit Electrodialysis Reversal (EDR) and the modern processing unit Reverse Osmosis (RO) in Al Nasiriya refinery and the impact on the asphalt unit boiler regard in terms of sediment, heat transfer, efficient performance of the boiler , and to propose ways of modern nutrition water treatment. The study showed clear contrast to the values of pH, dissolved solids, ions of calcium and


http://www.lenntech.com/applications/process/boiler/scaling.htm

http://www.eng2all.net/vb/showthread.php?t=43976

http://www.arab-eng.org/vb/showthread.php/178819-in


magnesium and the turbidity of the water produced by the unit (EDR) and the unit of the (RO) which shows the efficiency of the unit (RO). In order to get water of high purity and suitable for use in the boiler it advise to use ion exchange resins using synthetics.



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