Symbols

Aadd Alkalinity to be added to water

[Aadd]geq Gram equivalents per liter of alkalinity to be added to water

Acadd Acidity to be added to water

[Acadd]geq Gram equivalents per liter of acidity to be added to water

Acur Current alkalinity of water

[Acur]geq Gram equivalents per liter of current alkalinity of water

A[Fe]mg mg/L of ferrous to be removed

FeOH+ Monohydroxo Fe(II) complex ion

FeOH2+ Monohydroxo Fe(III) complex ion

Fe (OH)+ Dihydroxo Fe(III) complex ion

Fe (OH)- Trihydroxo Fe(II) complex ion

Fe (OH)- Tetrahydroxo Fe(III) complex ion

Fe2 (OH )2+ Dihydroxo 2-Fe(III) complex ion

KFeOHc Equilibrium constant of FeOH+ and FeOH2+

KFe(OH) c Equilibrium constant of Fe(OH)+

KFe(OH) c Equilibrium constant of Fe(OH)3

KFe(OH) c Equilibrium constant of Fe(OH)4

KFe (OH)2c Equilibrium constant of Fe2 (OH

KMnOHc Equilibrium constant of Mn (OH)+

K Mn(OH)2 c Equilibrium constant of Mn (OH )2

Ksp,Fe( OH)2 Solubility product constant of Fe (OH) 2(s)

Ksp,Fe( OH)3 Solubility product constant of Fe (OH) 3(s)

Ksp,Mn( OH)2 Solubility product constant of Mn (OH )2( s)

M Ca(ClO)2 Fe Kilograms of calcium hypochlorite used in the ferrous reaction

MCa(ClO)2Mn Kilograms of calcium hypochlorite used in the manganous reaction

MCaOFe Kilograms of lime used for the ferrous reaction

MCaOMn Kilograms of lime used for the manganous reaction

MCl Fe Kilograms of chlorine used for the ferrous reaction

M C^Mn Kilograms of chlorine used for the manganous reaction

MFe(OH) FeRem Kilograms of Fe(OH)2 precipitated from removal of ferrous

MFe(OH) FeRem Kilograms of Fe(OH)3 precipitated from removal of ferrous

M KMnO4Fe Kilograms of potassium permanganate used in the ferrous reaction

M KMn^Mn Kilograms of potassium permanganate used in the manganous reaction

M Mn(OH)2 MnRem Kilograms of Mn(OH)2 precipitated from removal of manganese

M Mn^MnRem Kilograms of MnO2 precipitated from removal of manganese

MNaClOFe Kilograms of sodium hypochlorite used in the ferrous reaction

MNaClOMn Kilograms of sodium hypochlorite used in the manganous reaction

MNaOHFe Kilograms of caustic used for the ferrous reaction

MNaOHMn Kilograms of caustic used for the manganous reaction

A[Mn]mg mg/L of manganous to be removed

MO Fe Kilograms of dissolved oxygen used in the ferrous reaction

M OMn Kilograms of dissolved oxygen used in the manganous reaction

MO Fe Kilograms of ozone used in the ferrous reaction

M OMn Kilograms of ozone used in the manganous reaction

Mn(OH)+ Monohydroxo Mn(II) complex ion

Mn( OH) 2 Dihydroxo Mn(II) complex ion

Mn( OH) 3 Trihydroxo Mn(II) complex ion

MCaOpH Kilograms of lime needed to raise pH

MCO H Kilograms of carbon dioxide needed to lower pH

MHClpH Kilograms of hydrochloric acid needed to lower pH

M H SO4pH Kilograms of sulfuric acid needed to lower pH

M Na2CO3pH Kilograms of soda ash needed to raise pH

MNaOHpH Kilograms of caustic soda needed to raise pH

spFeII Species containing the Fe(II) species

FeIII

Species containing the Fe(III) species

SpMn

Species containing the Mn(II) species

¥

Cubic meters of water treated

Yh

Activity coefficient of the hydrogen ion

tfell

Activity coefficient of the ferrous ion

YeIII

Activity coefficient of the ferric ion

YeOHc

Activity coefficient of FeOH+ and FeOH

7Fe(OH)2c

Activity coefficient of Fe( OH )+

7Fe(OH)3c

Activity coefficient of Fe( OH ) -

7Fe(OH)4c

Activity coefficient of Fe( OH ) -Activity coefficient of Fe2 ( OH )2+

7Fe2( OH)2c

?Mn

Activity coefficient of Mn(II) ion

?Mn(OH)c

Activity coefficient of Mn(OH)+

7Mn(OH)3c

Activity coefficient of Mn ( OH) -

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