Water treatment

Major   uses of the product

For   drinking water

Major   forms of the product

Colorless   or yellowish liquid

Simplified   structural formula of the product

SiO2   yH2O where y > 0

Technical   indexes of product quality

Activated Silicic Acid (Q/0281CSD001-2016)

Name   of indexes

Liquid

Mass   fraction of silicon dioxide (SiO2) /% ≥

2.0

5.0

Mass   fraction of free acid (based on HCl) /% ≤

1.5

3.0

Mass   fraction of insoluble matter /% ≤

0.2

Mass   fraction of arsenic (As) /% ≤

0.0002

Mass   fraction of plumbum (Pb) /% ≤

0.001

Mass   fraction of cadmium (Cd) /% ≤

0.0002

Mass   fraction of mercury (Hg) /% ≤

0.00001

Mass   fraction of chromium (Cr6+) /% ≤

0.0005

Note:   All the indexes of the heavy metal and insoluble matter listed in the table   are calculated based on a 5% silicon dioxide content.

Product   properties

1.   Activated silicic acid, also known as poly silicic acid, is a silica sol type   inorganic polymer water treatment coagulant.

2.   It has an evident effect in treating colored raw water, algae-containing   water, and low-turbidity raw water, especially in treating low-temperature   and low-turbidity water in a reservoir.

3.   It can be compounded or combined with aluminum series, iron series or other   inorganic macromolecule coagulants, significantly improving the quality of   outflowing water and reducing the amount of chemical (PAC, PFS, etc.) use by   20%-30%

Major   uses of the product

For   water treatment in a water supply plant, and for sewage treatment, sludge   concentration and dehydration and so on in a sewage treatment plant

Major   forms of the product

White   or yellowish emulsion, or white solid

Simplified   structural formula of the product

(CH2CHCONH2)n

Code   name

PAM

Technical   indexes of product quality

Water Treatment Chemicals—Polyacrylamides (GB/T31246-2014)

Name   of indexes

Solid

Emulsion

Type   of ions

Cation

Anion

Nonionic

Zwitter-ion

Cation

Anion

Code   name of PAM

CPAM

APAM

NPAM

AmPAM

CPAM

APAM

Relative   molecular weight, million, ≥

10-250

10-200

Ionicity,   %

5-95

25-45

-10

5-45

5-95

25-45

Solid   content, % ≥

88.0

20-70

Unit   content of residual (dry basis), % ≤

0.1

0.1

Dissolution   time (1g/L), min ≤

60

30

Water   insoluble matter, % ≤

0.3

0.3

Viscosity   (cps)

3-10

3-10

Note:   Products with different indexes can be customized according to customer   requirements

Product   properties

1.   This product is an organic polymer flocculant and a sludge dehydrant. It also   works as a chemical agent in an oil field and a chemical for papermaking.

2.   It is adopted for flocculation of surface water, municipal sewage, industrial   sewage, and sludge treatment.

3.   CPAM is mostly applied in organic granule series and neutral to acidic media,   especially in the process of  biochemical   sludge dehydration; APAM in neutral to acidic media and in the process of   biochemical sludge dehydration, and more for precipitation separation; NPAM   in inorganic granule series and acidic media; AmPAM, free from the effect of   metal ions, in the water series hard to treat under a wide range of pH   values.

Major   uses of the product

As   a flocculant for water treatment in a water supply plant

Major   forms of the product

Colorless   or yellowish viscous liquid or colloid; white solid

Simplified   structural formula of the product

(C₈H₁₆NCI)n

Code   name

PDMDAAC

Technical   indexes of product quality

PDADMA   (GB/T 33085-2016)

Name   of indexes

Colloid

Solid

Solid   content [s], % ≥

20.0

90.0

pH   value (10 g/L aqueous solution)

5.0-7.0

Intrinsic   viscosity [η] (dl/g) ≥

0.5

Unit   content of residual (DMDAAC), % ≤

1.0

Sodium   chloride content, % ≤

2.5

Screenings   (180um), % ≥

89

Dissolution   time (25 ° C, 5 g/L) min ≤

30

Note:   Products with different indexes can be customized according to customer   requirements. Corresponding evaluation criteria shall be satisfied when it is   used for water treatment

Product   properties

1.   This product acts as an organic polymer flocculant and a sludge dehydrant. It   also works as a chemical agent in an oil field and a chemical for papermaking.

2.   It is adopted for flocculation of surface water, municipal sewage, industrial   sewage, and sludge treatment.

3.   It is used for water treatment in a water supply plant with an evident effect   especially for the treatment of high-turbidity water during the flood season.