Pressure Filtration
Plant Chemistry
Reveres Osmosis System
Prepared By : -Umar FarooqSenior Chemist NOMACMSC ( Chemistry )
MBA ( Marketing )[email protected] [email protected] SIWEP
Shuaibah Jeddah Saudi Arabia1
Reveres Osmosis System
Part 1Water ChemistrySea water impuritiesSimulation of Reveres
Osmosis systemAnatomy of Spiral Wound ElementPrinciple of Reveres
OsmosisPart 2Chemical Handling and safety Corrosion phenomena
Membrane Fouling Membrane Scaling
3
Umar Farooq Chemist NOMAC SIWEP
4
At the end of the respective training course, the participants
will be able to:Identify the chemical Hazards & how to handle
chemical material safely.now the foundations of Water Quality
Control to avoid the scale corrosion and biological growth in the
reveres osmosis system, and to operate the mentioned at max
performance.Understand the troubleshooting events to the plant
chemistry system.
Vision Water Quality Control will lead all to understand the
limitations and international standards as well as increasing the
plant availability. Occupational health will maintain within high
standards, zero incident. Operational process will maintain highly
performance due to plant chemistry troubleshooting.Umar Farooq
Senior Chemist SIWEP NOMAC Main Objective
Umar Farooq Chemist NOMAC SIWEP 4
Water ChemistryWater is an excellent solvent and dissolve to
varying degree. any thing it comes into contact with it.
Water born impuritiesWater contains some impurities which
are
Dissolved inorganic compoundBi Carbonate, Carbonates, Sulphate ,
nitrates , Chlorides of calcium , magnesium ,sodium and potassium ,
inorganic Suspended materials, like clay, silt ,sand , soil and
metal oxides, These can not be remove by filtration.
Umar Farooq Senior Chemist SIWEP NOMAC 5
Umar Farooq Chemist NOMAC SIWEP 5
Dissolve Organic CompoundHumic acid , fulvic acid , tannine ,
insoluble matter such as dead bacteria and other biological
productsDissolve gassesSuch as oxygen , nitrogen , carbon di oxide
, sulpher dioxide , ammonia , and hydrogen sulphide absorbed from
atmosphere and solid surfaceMicro OrganismSuch as bacteria algae
and fungiUmar Farooq Senior Chemist SIWEP NOMAC 6
Umar Farooq Chemist NOMAC SIWEP 6
Why Water is UniqueWater is only substance that exist in form of
solid , liquid and steamSpecific heat = 1calorie/gramIt expand =
1600 timeThree Isotopes = H , D2O , T2OHeat of fusion = 144Btu /
LbsHeat of vaporization = 980 Btu / LbsFreezing Expand =
1/9Depending upon pressure ,its boil with in the temperature =
35-704F*
Umar Farooq Senior Chemist SIWEP NOMAC 7
Umar Farooq Chemist NOMAC SIWEP 7
Properties of WaterIt is chemical compound expressed by the
formula H2O.It is formed by two item of hydrogen and one atom of
oxygen Due to different electro negativities of hydrogen and
oxygen.H20 Molecule is electrically charged .When the other
molecule combine with it then will be formed hydrogen bonding Water
is the best solvent .It dissolved different substance In it and the
process of dissolving Is desolation Model of hydrogen bonds Between
modules of water
Umar Farooq Senior Chemist SIWEP NOMAC 8
Umar Farooq Chemist NOMAC SIWEP 8
Sea WaterIt is store house of impurities It contain 3.6% by
weight of solids.Normally 75% impurities of sea water are Br, I ,
So4 , and Ca ,Mg , K , etc.Cat ion and Anion Salts in Sea water
Cations Anions Calcium Ca++ Bicarbonate (HCO3-), Magnesium Mg+ +
Carbonate (CO32-), Sodium Na+ Sulfate SO42- Iron Fe2+(ferrous)
Chloride Cl- Aluminum AI3+ Nitrate NO3- Potassium K+ Fluoride
F-
Umar Farooq Senior Chemist SIWEP NOMAC 9
Umar Farooq Chemist NOMAC SIWEP 9
RELATIVE SETTLING VELOCITIES OF SAND and SILT PARTICLES IN STILL
WATER
Particle Diameter, mm Order of Magnitude Time Required to Settle
1 Foot
10.0Gravel0.3 Seconds1.0Coarse Sand3 Seconds0.1Fine Sand38
Seconds0.01Silt33 Minutes0.001Bacteria 35 Hours0.0001Clay
Particles230 Days0.00001Colloidal Particles63 YearsUmar Farooq
Senior Chemist SIWEP NOMAC 10
Umar Farooq Chemist NOMAC SIWEP
Shuaibah RO-Expansion PlantMedia filters (32)Cartridge
filters(9+1)
1st Pass RO (10)Permeate Tanks (2)Seawater pumps (2+1)
Shock chlorination
H2So4FeCl3PolymerSBSAntiscalant
1st pass HP Pump (10)
2nd Pass RO (10)NaOHAntiscalant
Potabilization Plant
Nominal Capacity : 150,000 m/hr.1st Pass Recovery : 41.5 %.2nd
Pass Recovery : 90%.1st RO Permeate = 168000 m3/day.Feed Water
TDS=37000-44000 mg/l.Feed Water Silt Density Index: <
5(100%),
