|
Caustic
Soda
|
Soda
Ash
|
Hydrated
Lime
|
Dolomitic
Lime
|
Magnesium
Hydroxide
|
|
NaOH
|
Na2CO3
|
Ca(OH)2
|
Ca*Mg(OH)4
|
Mg(OH)2
|
|
pH
CONTROL
|
| Very
easy to overshoot pH and can kill biosystem |
Possible
to overshoot pH. Excessive feeding will kill biosystem |
Easy
to overshoot pH. Overfeeding might kill biosystem |
Could
overshoot pH. Less dangerous than straight lime but still might kill
biosystem |
Will
not overshoot pH. Will not kill biosystem |
|
BUFFERING
AND ALKALINITY
|
| No
buffering and alkalinity quickly depleted |
Buffers
well but adds Carbonate that precipitates excess Hardness |
Adds
true alkalinity and stabilizes Carbonate concentrations |
Adds
true alkalinity and some buffering while stabilizing carbonate hardness |
Adds
alkalinity that buffers well and excess alkalinity is recycled in
biosolids |
|
NUTRIENTS
|
| No
nutrient value. Actually increases toxicity more than any other material |
Precipitates
hardness which could help maintain Mg and Ca alkalinity in sludge |
Adds
Calcium that is essential for cell growth and energy storage |
Adds
Ca and Mg to maximize phosphate energy storage and healthy cell growth |
Adds
Magnesium that is considered a minor nutrient for proper cell growth |
|
SCALING
|
| Minimizes
the potential for scaling in denitrification systems |
Adds
excess carbonate. Could cause some scaling in denitrification systems |
Excessive
use can cause scaling in some denitrification systems if operating
at a high pH |
Less
potential for scaling than straight lime in denitrification systems |
Minimizes
the potential for scaling in denitrification systems |
|
PHOSPHATES
|
| Has
no effect on soluble Phosphate concentrations |
Has
no effect on soluble Phosphate concentrations |
Reduces
soluble Phosphate concentrations more than any other material |
Very
good at reducing soluble Phosphate concentrations |
Maintains
soluble Phosphate at optimum healthy levels in most systems |
|
SULFATES
|
| Has
no effect on soluble Sulfate concentrations |
Has
no effect on soluble Sulfate concentrations |
Reduces
soluble Sulfate concentrations more than any other material |
Very
good at reducing soluble Sulfate concentrations |
Has
no effect on soluble Sulfate concentrations |
|
HYDROGEN
SULFIDE
|
| Has
the least effect on Hydrogen Sulfide of all neutralizers |
May
help to reduce Hydrogen Sulfide concentrations in some systems |
Precipitates
Sulfates that might convert to Hydrogen Sulfide in anaerobic systems |
Precipitates
Sulfates and moderates the production of Hydrogen Sulfide |
Inhibits
the conversion of Sulfates to Hydrogen Sulfide |
