ISIRI
Islamic Republic of Iran
9490
1st.Edition
Institute of Standards and Industrial Research of Iran
Microfiltration,ultrafiltration, nanofiltration
and reverse osmosis memberane processes Terminology
Standard @ isiri.or.ir
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1-ASTM D6161: 2005, Standard terminology used for Microfiltration, Ultrafiltration,
Nanofiltration and Reverse Osmosis Memberane processes.
3-1
3-2
3-3
3-4
ASTM D1129: 2006, Terminology relating to water.
ASTM D2035: 2003, Practice for Coagulation-Flocculation jar test of
water.
ASTM D3739: 2006, Practice for calculation and adjustment of the
langalier saturation index for reverse Osmosis.
ASTM D4582: 2005, Practice for calculation and adjustment of the Stiff
and Davis stability index for reverse Osmosis.
ASTM, D 1129
Absolute filter rating
Absorption
Accumulator
Accuracy
Acidity
Activated carbon
Adsorption
Aerobic bacteria
Aggregate
Air header
Air scour
Air Stripping
Algae
1- Cassette
2 - Module
Alkalinity
M
pH
pH
P
M
P
Alum
X=
AL2(SO4)3 XH2O
Ambient temperature
Amorphous
Anaerobic bacteria
Amphoteric
Angstrom(A)
A
A.U. A ?
Anion
1- Non crystalline
Anion exchange material
Anion exchange membrane
Anisotropic membrane
Anode
Anionic polyelectrolyte
Anthracite
Antifoulant
Antiscalant
1- Coagulation
2 - Flocculation
3 Granular
Anti-telescoping device
AOC (assimilable organic carbon)
Aquifer
Aramid
Array
Asymmetric membrane
ATD (Anti-telescoping device)
Atomic weight
ATP adnosine triphosphte)
Autopsy
Availability
a-value
NDP
m3 /hr / m2 /kPa
AWWA (American Water Works Association)
AWWARF
(American
Backflush
Backpulse
Backwash
1 Net driving pressure
Water
Works
Association
Research
Foundation)
Bacteria
Bactericide
Bacteriostat
Baffle
Bank
Bar
MPa
BAT(Best Available Technology)
Baume scale, ? Be
atm
kg/cm2
Ibs/in 2
?BE=
-
?BE=
Bed depth
Bed expansion
Binders
Binding
Biocide
Biological deposits
Biomass
Bioremediation
Biostat
Bipolar membrane
Block
BOD(Biochemical Oxygen Demand)
Body feed
BOO (build, own, operate)
BOOT(build, own, operate, transfer)
Boundary layer
Brackish water
Breakpoint chlorination
Break tank
Brine
Brine (concentrate) seal
Brine seal carrier
Brine system staging
Bubble point
Bubble point pressure
Bubble point test
Buffer
pH
Bundle
B-value-salt diffusion coefficient
m3/m2/h
m/h
BWRO (brackish water reverse osmosis)
1 Filaments
B
CAC (combined available chlorine)
Cage
Cake layer
mg/l
CaCO3
Calcium carbonate equivalents (mg/l as CaCO3 )
Carbonate hardness
Calcium hypochlorite
Ca(HCIO)2
Cartridge
Cassette
Catalyst
EPM
CaCO3
Ca
Mg
Na
K
Sr
Ba
Fe
HCO3
SO4
Cl
F
NO3
CO3
PO4
Cathode
Cation
Cation exchange material
Cation exchange membrane
Cationic polyelectrolyte
Cellulose
(C6H10O5)
Cellulose acetate (CA)
Celsius (°C)
°C= (F
K=KELVIN
°C=K-
Centigrade
Ceramic membrane
pH
CFU (Colony forming unit)
(TBC)
1 Total bacterial count
Channeling
Charge-mosaic membranes
Check valve
Chelating agents
Chemical feed pump
Chloramine
Chlorine
Chlorine demand
Chlorine, residual
Chlorine , free available
(HOCL)
(OCl¯)
(Cl2)
Chlorine, total available
CIP (Cleaning in place
Citric acid
(C3H4(OH)(CO2H)3
Clarifier
Clark degree
CaCO3
Clear well
Coagulant
Coalescing
Co-current flow
Coliform bacteria
COD - Chemical oxygen demand
Colloid
Colony forming unit (CFU
(TBC)
Compaction
Completely mixed (perfectly mixed) flow
Composite membrane
Concentrate
Concentrate recycle
Concentration factor, CF
CB
CF =
CF
=
Concentration polarization
Conductivity
S/cm
Contaminant
Continuous deionization
Control block
Conversion (Y
Conversion factors (CF)
Corrosion products
Counter-current flow
CPU Chloroplatinate unit)
Cross flow
Crossflow membrane filtration
Cryptosporidium
Dalton
DBP (Disinfection by-products
SDWA
Dead end filtration
Dead end flow
Deaerator
Decarbonator
Degasification
Deionization (DI
Demineralization
Denitrification
Dense (non-porous) membrane
Desalination
Desorption
Detergent
Dialysis
Dialysis permeability coefficient
Diatom
Diatomaceous earth (DE) filtration
Differential pressure ( P,dP
Disinfection
Dissolved solids
Distillation
Donnan exclusion
Downstream
Dynamic
membrane
formation
E.coli
Effluent
Electrodialysis (ED
Electrodialysis reversal (EDR
Element
English degree
EPA-Environmental Protection Agency (USA
EPS (Extra-cellular polysaccharide
Equivalent per million (EPM
PPM
Equivalent weight
ERD (Energy recovery device)
ERT (Energy recovery turbine)
Escherichia colia
ESWTR (Enhanced surface water treatment rule
Evaporation
FAC (Free avahlable chlorine
Facultative organisms
Fahrenheit (°F
FDA (Food and Drug Administration USA
Feed
Feed channel spacer
Feed distributor
Feed pretreatment
Feed water
Ferric chloride
FeCl3 6H2O
Ferric sulfate
Fe2(SO4)3- 9H2O
Ferrous sulfate
FeSO4- 7H2O
Fiber bundle
Filter cake
Filtrate
Fixed matter
Flat sheet membrane
Floc
Flocculent
Flocculation
Flow balancing
Flow balancing tube
Flux
Fouling
Fouling index (FI
FRC (Free residual chlorine
Freeboard
Free (available) chlorine
French degree
FRP (Fiberglass reinforced plastic
Fungus
GAC (Granular activated carbon
Galvanic corrosion
GD (Gallons per day
1 - HOCL
Gel fouling layer
German degree
GFD (GPDSF) (Unit of permeate rate or flux)
GPD (Gallons per day)
Grain
Grains per U.S. gallon (GPG)
GPG
ppm
GRAS (Generally regarded as safe
"
"
(FDA)
Gravity filter
Greensand
Groundwater
HAA (Halo acetic acids
Halogen
Hardness
Header
Head loss
Heavy metals
High brackish water
High-purity water
Hollow fiber (HF) membrane
Homogeneous membrane
HPC (Heterotrophic plate count
SPC
Humic acid
Humidity, absolute
Humidity, relative
Hydrated lime
Hydrophilic
Hydrophobic
Hydroxyl alkalinity
Hyperfiltration
Immersed membrane
MF/UF
Imperial gallon (IG
In-line coagulation
Integrity
Interconnector
Ion
Ion exchange
Ion-exchange capacity (volume basis
Ion-exchange capacity (weight basis
Ion exchange material
Ion-exchange memberane
Ion-exchange particle
Ion-exchange resin
Ionic strength
Ionization
Jackson turbidity unit, JTU
Jar test
ASTM D2035
langelier saturation index, LSI
pH
ASTM D3739
Langmuir-Blodgett (LB) membrane
LD-50 (Lethal dose
Leaf
Lime
Ca(OH)2
Lime soda softening
Na2CO3
Limestone
(CaCO3 - MgCO3)
(CaCO3)
Limiting current density
Loose RO
LRV-Log Reduction Value
LRV
LSI (Langelier saturation index
CaCO3
S&DSI ASTM D3739
Manganese greensand
Manifold
Mass transfer coefficient (MTC
MCL (Maximum contaminant level
Megohm
Membrane
Membrane area
Membrane compaction
Membrane conditioning (pretreatment
Membrane configuration
Membrane distillation
Membrane element
Membrane filter
Membrane module
Membrane partition (distribution) coefficient
Membrane physical ageing
Membrane post treatment
Membrane reactor
Membrane salt passage
SPm
Membrane softening
MGD (MGPD) (Millions of gallons per day
Mho
Microaerophilic bacteria
Microfiltration (MF
Microbe
Micron (Micrometre
( m)
Microorganism
Microsiemens
Milliequivalent per litre (meq/L
epm
Milligram per litre (mg/L)
ppm
mg/L=ppm
ppm
Mixed-bed
Mobile carrier
Module
Molality (-m1
Molarity (m1
Molecular weight cut off (MWCO)
NMWCO
Multimedia filter
Multi - plexing
m-value
NaHMP (sodium hexametaphosphate
Nanofiltration (NF
NMO (Natural organic matter
Nephelometer
NTU
Non-carbonate hardness
Nonionic polyelectrolyte
Normalization
NSF(National Sanitation Foundation International
NTU(Nephelometric turbidity units
OEM(Oiginal equipment manufacturer
O&M (Operation and maintenance
Ohm
Operating pressure
Osmosis
Osmotic pressure
Oxidation - reduction potential
Oxygen demand
PAC(Powdered activated carbon or Poly-aluminum chloride)
PACI(Poly-aluminum chloride
Parts per billion (ppb
Parts per million (ppm
Parts per trillion (ppt
Pass
Penetrant (Permeant
Permanent hardness
Pemeabilty
Permeability coefficient
Permeable
Permeance (Pressure normalized flux
Permeate
Permeate collector fabric
Permeate post-treatment
Permeator
Pervaporation
pH
[H+]
-log10 [H+]
Phase
Plant capacity
MGD GPD
Plugging factor
Polarization
Polyelectrolyte
Polymers
Pore
Porous
Porosity
Post treatment
Post treatment
Post treatment
Potable water
Precipitate
Precoat
Pressure filtration
Pressure vessel
Pretreatment
Product staging
1 -Septum
Product channel spacer (permeate carrier)
Productivity
Product tube
Product water
Progection
Pyrogens
Quicklime
CaO
Ranney collector
Raw water
Recovery-Y (conversion
Regeneration
Reject
Rejection factor , R
Relative standard deviaton (RSD
Resin particle
R
Resistivity
Retentate
Reverse osmosis (RO
RO train
Ryznar stability index (RSI
RSI
pH CaCO3
pH
RSI
Salinity
Salt flux
Salt passage, SP
(CF)
(CP)
(CF
(CP
CP
SP=
CF
Salt rejection , SR
SR=
CP)
CF
Sanitization
Saturation
SBS, Sodium bisulfite
.
Scale inhibitor
NaHSO3
Scaling
SDI - Silt density index
S&DSI (Stiff and Davis saturation index
CaCO3
D4582 ASTM
SDWA(Safe Drinking Water Act of the United States
Sea water
Sedimentation
Selective membrane skin
Semipermeable membrane
SHMP(Sodium hexametaphosphate) (NaHMP
Siemens
Slime
Sludge
Sludge blanket
SMBS(Sodium metabisulfite) (Na2S2O5
Softening
Softener
Sol-gel membrane formation
Solids contact clarifier
Solubility product
MX
Solutes
Solution diffusion
Solvent
SPC-Standard (heterotrophic) plate count
Specific gravity
Specific flux
Spiral wound cartridge
[M+]a [X ]b
[MX]
Ma Xb
a M+ + bX
Spiral wound membrane
Stage
Staging
Standard test conditions
Sterilization
Stiff & Davis stability index , S&DSI
pH
S&DSI
ASTM D4582
STP (Sodium triphosphate- Na5P3O10
STPP (Sodium tripolyphosphate)
Supersaturation
Suspended solids (SS
SWRO (Seawater reverse osmosis
Symmetric membrane
TBC (Total bacteria count
TCC (Total colony count
TDS (Total dissolved solids
Telescoping
emperature correction factor (TCF
TCF
Temporary hardness
Thermally induced phase-separation membrane formation
Thickener
Thin film composite
Threshold treatment
THM (Trihalomethanes
THMP (Trihalomethane precursors
Thrust collar
TOC(Total organic carbon
TOCI(Total organic chlorine
TOX (Total organic halides
TOXFP(Total organic halide formation potential
Track-etch membrane formaion
Train
Transmembrane pressure (TMP)
Total residual chlorine (TRC
Trisodium phosphate (TSP)
Na3 PO4 12H2O
TSS (Total suspended solids
TTHM (Total trihalomethane
Turbidity
Turbidity , Jackson candle (JTU
Turbidity , nephelometric (NTU
Tyndall effect
UCL
Ultrafiltration (UF
Ultra pure water
USEPA(U.S. Environmental Protection Agency
Ultraviolet (UV) radiation
Upstream
Viable
VOC (Viable organism count
VOC (Volatile organic compound
WQA (Water quality association
Water softener
Y (Conversion , Recovery)
Zeolite
Zero discharge
Zeta potential
ISIRI
Islamic Republic of Iran
1st. Edition
Institute of Standards and Industrial Research of Iran
1386
Microfiltration,Ultrafiltration,
Nanofiltration and Reverse Osmosis
Memberane processes -Terminology
ICS: 01.040 ; 17.060
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