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MetFloc™ Process
Chemicals for Heavy Metal Removal from Wastewater
The MetFloc™ Process
uses a line of six chemicals for the real-time treatment
of metal-laden waste water. The combination of MetFloc
chemicals used depends on the profile and complexity of waste solution
to be treated. A minimum of one and a maximum of four MetFloc
chemicals can be used in any one-treatment cycle. The prescribed
dosage will
depend on treatability studies conducted on the wastewater.
MetFloc HM11
Co-precipitant, Pre-treatment Solution
| Description |
Co-precipitant / pre-treatment solution for removing
all heavy metals from
waste solutions in ONE pH treatment cycle. Effective for both acidic and
alkaline waste solutions. Effective even in the presence of interfering agents (e.g. chelants
or complexing agents). Eliminates carry-over fine flocs. Produces clear water. |
|
Properties |
Appearance: Greenish liquid solution
Specific gravity: 1.93 - 1.96
pH range: 1.5 - 2.5
Boiling
point: 280°F
Freezing point: 44°F |
|
Handling & storage |
Always mix before using. Store in cool, dry place. If frozen, warm then remix to uniform solution.
Storage in plastic or epoxy-lined vessels is recommended. Do not use
any metal-lined materials in feed of storage systems. Materials for storage and dosing
product should be
corrosion resistant. |
|
Safety |
MSDS available on request. |
MetFloc HM12
Co-precipitant, Pre-treatment Solution
| Description |
Co-precipitant
/ pre-treatment used for removing all heavy metals from waste solutions.
Effective
for both acidic and alkaline waste solutions. |
|
Properties |
Appearance: Milky white liquid solution
Specific gravity: 1.18 - 1.94
pH range: 11.5 - 13.5
Boiling
point: 217°F
Freezing point: 42°F |
|
Handling & storage |
Always mix before using. Store in cool, dry place. If frozen, warm then remix
to uniform solution. Storage in plastic or epoxy-lined vessels is
recommended. Do not use any metal-lined materials in feed of storage
systems. Materials for storage and dosing of product should be
corrosion resistant. |
|
Safety |
MSDS available or request. |
MetFloc HM13
Cationic Emulsion
| Description |
Cationic
emulsion. A a high molecular weight, highly charged
cationic flocculant used effectively as a sludge
conditioning agent in liquid/solids separation
processes. It is normally used after the waste solutions
have been co-precipitated / pre-treated with MetFloc
HM11,
TA11, HM12 or HM17C. |
|
Properties |
Appearance:
Milky white liquid solution
Ionic nature: Highly cationic
Specific gravity: 1.18
pH range: 9.5 - 10.5
Viscosity: 500 - 1200 cps
Boiling
point: 260°F
Freezing point: 40°F |
|
Principal Uses |
As highly
charged cationic flocculant
or coagulant aid. Successfully applied in liquid/solids separation
systems such as clarification, thickening, flotation and dewatering. Can be used alone or in combination with
MetFloc HM14. It is normally fed
to a treatment system after pre-treatment with MetFloc HM11, TA11,
HM12 or HM7C
to promote larger flocs, faster settling and denser sludge blankets with
negligible pin flocs and carry-over in the effluent. |
|
Handling & storage |
Store in cool, dry place. If frozen, warm then remix to uniform solution.
Storage in plastic or epoxy-lined vessels is recommended. |
|
Safety |
MSDS available or request. |
MetFloc HM14
Anionic Emulsion
| Description |
A high
molecular weight, highly charged anionic flocculant used
effectively as a sludge conditioning agent in
liquid/solids separation processes. It is normally used
after the waste solutions have been pre-treated with
MetFloc HM11 and/or TA11, MetFloc HM12 and/or HM17C. |
|
Properties |
Appearance: Hazy white solution
Ionic nature: Highly anionic
Specific gravity: 1.12
pH range: 9.5 - 10.5
Viscosity: 400 - 1000 cps
Boiling
point: 340°F
Freezing point: 40°F |
|
Principal Uses |
As a highly
charged anionic flocculant
or coagulant aid. Successfully applied in liquid/solids separation
systems such as clarification, thickening, flotation and dewatering. Can be used alone or in combination with
MetFloc #3. It is normally fed
to a treatment system after pre-treatment with MetFloc #1, TA11, HM12 or
HM17C
to promote larger flocs, faster settling and denser sludge blankets with
negligible pin flocs and carry-over in the effluent. |
|
Handling & storage |
Store in cool, dry place. If frozen, warm then remix to uniform solution.
Storage in plastic or epoxy-lined vessels is recommended. For storage tanks and feed lines, use PVC or reinforced Tygon tubing. |
|
Safety |
MSDS available or request. |
MetFloc HM17C
Meta-cyanide Co-precipitant Solution
| Description |
A co-precipitant used for removing
all
meta-cyanide complexed metals (e.g. Zn, Cd, Cu, Fe, etc.) from
waste solutions in ONE pH treatment cycle. Effective for both acidic and alkaline
waste solutions. Eliminates carry-over fine flocs. Produces clear water. |
|
Properties |
Appearance:
Milky white solution
Specific gravity: 1.21 - 1.96
pH range: 11.5 - 13.5
Viscosity: 400 - 1000 cps
Boiling
point: 217°F
Freezing point: 42°F |
|
Handling & storage |
Store in cool, dry place. If frozen, warm then remix to uniform solution.
Storage in plastic or epoxy-lined vessels is recommended. Do not use
any metal-lined materials in feed of storage systems. Materials for storage and dosing
of product should be
corrosion resistant. |
|
Safety |
MSDS available or request. |
MetFloc TA11
Co-precipitant / Pre-treatment Solution
| Description |
A specialty
co-precipitant / pre-treatment formulation effective for treating metal-laden
waste solutions high in Biochemical Oxygen Demands (BODs) and Chemical
Oxygen Demands (CODs). Heavy metals are also precipitated out of solution.
The product is effective for both acidic and alkaline waste solutions. Eliminates carry-over fine flocs.
Produces clear water. |
|
Properties |
Appearance:
Brownish solution
Specific gravity: 1.93 - 1.97
pH range: 1.2 - 2.8
Viscosity: 400 - 1000 cps
Boiling
point: 300° F
Freezing point: 40° F |
|
Handling & storage |
Stored at temperatures between
55 - 95° F. If it freezes, thaw completely and
mix thoroughly prior to use. Storage in plastic or epoxy-lined vessels
is recommended. Do not use any metal-lined materials in feed of storage
systems. Cross-linked polyethylene, PVC are the preferred
construction materials
for bulk tanks. Vitron or Teflon are the best choices
for pump heads. For feed lines, use PVC or reinforced Tygon tubing. |
|
Safety |
MSDS available on request. |
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