|
| |
Waste Treatment: Neutralizers & Flocculants
Neutralizers*:
|
 |
|
Product Description |
Technical Datasheet |
MSDS |
|
Neutralizer 1
- ACIDIC (low pH) Solution for Neutralizing
Alkaline solutions to bring pH DOWN. Also used to bring pH DOWN in chemical
process tanks and streams. |
Neutralizer 1 |
Neut-1 |
|
Neutralizer 14
- ALKALINE (High pH) Solution for Neutralizing
Acidic solutions to bring pH UP. Also used to bring pH UP in chemical
process tanks and streams. |
Neutralizer
14 |
Neut-14 |
- *Neutralization is the pH adjustment of
waste streams to within acceptable limits set by regulatory agencies
(local, state and federal). While it is certainly not a complete treatment
of industrial or commercial wastes, it is required in many instances as a
final step before discharging into the public sewers. Many
municipalities allow discharges of pH's within 6-9, but always check with
your own regulatory agency for complete guidelines.
-
- The neutralization process may also be
used to precipitate and settle out heavy metals such as iron, zinc,
copper, cadmium, and chromium. The first step in this process is
adjustment of the pH of the waste stream. Insoluble metal hydroxides are
formed by the reaction of the basic chemical with the metal at a pH range
of 6.0 - 9.0. Not all metals become insoluble at the same pH. For this
reason, the pH is usually adjusted to remove the metals that are the most
toxic or the highest concentrations. In many cases
flocculants are used to precipitate out other
heavy metals.
-
- For more information on how to set up a pH
neutralization system
click
here.
|
|
|
 |
| Please call us for information on industrial flocculants for your
waste treatment needs. |
- Destabilization (flocculation) is also a
function of pH adjustment. Chemicals for destabilization are usually
adjusted to achieve maximum flocculation. In the neutralization process
mentioned earlier, not all the suspended solids will precipitate in a
reasonable time. Thus, the addition of a destabilization chemical, such as
an anionic polymer, is used to agglomerate the colloidal solids and cause
a much faster settling action. The colloidal solids are kept suspended or
stabilized by electrical surface charges. These positively charged metal
ions are attracted by the negatively charged polymer chains. The increase
in particulate size and density result in more rapid settling and better
removal of metal salts. If an imbalance occurs, it is possible to
re-stabilize the solids particles and carryover will occur.
 The heavy metals can successfully be removed using the
neutralization and destabilization processes. Ninety-nine percent removal
is easily obtained and the processes are not easily upset, making it one
of the most effective methods in reducing heavy metal concentrations to
meet pretreatment ordinances.
|
|
