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Polyaluminium Chloride
Created with Pixso. 0.1% Max. Insolubles White Powder 25kg Bag PAC-01 Polyaluminium Chloride for Membrane Feed Water

0.1% Max. Insolubles White Powder 25kg Bag PAC-01 Polyaluminium Chloride for Membrane Feed Water

Brand Name: BLUWAT
Model Number: Blufloc PAC Series
MOQ: 5 tons
Price: negotiable
Delivery Time: Within 15 workdays recdive the payment or L/C
Payment Terms: L/C, T/T, D/P,, D/A, Western Union
Detail Information
Place of Origin:
China
Certification:
ISO Halal ZDHC
Product Model:
PAC-01
Chemical Name:
Polyaluminium Chloride
Appearance:
White Powder
Al2O3 Content:
30% Min.
Basicity:
45-55%
Water-insoluble Matter:
0.1% Max.
Drying Type:
Spray Dried
Preparation Concentration:
2-20% Solution Before Dosing
Typical Solid-product Dosage:
About 1-15 G/MT; Determine The Optimum By Jar Test
Standard Packaging:
25kg Inner Plastic Bag With Polypropylene Woven Outer Bag
Packaging Details:
25kg inner plastic bag with polypropylene woven outer bag
Supply Ability:
3500 tons per month
Product Description
Membrane Feed-Water Pretreatment

PAC-01 White Polyaluminium Chloride for Membrane Feed-Water Pretreatment

Spray-dried white PAC developed to reduce colloidal fouling and unstable turbidity upstream of UF, NF and RO membrane systems.

Al2O3 Content
30% Min.
Basicity
45–55%
Insolubles
0.1% Max.
Standard Packaging
25kg Bags

Product Short Description

PAC-01 is a spray-dried white powder polyaluminium chloride developed for membrane feed-water pretreatment. It provides 30% min. Al2O3, 45–55% basicity and 0.1% max. insolubles. The product is supplied in 25kg bags and should be selected through jar tests using the actual surface or process water upstream of UF, NF or RO.

Product Overview

In membrane feed-water pretreatment, the practical objective is to reduce colloidal fouling and unstable turbidity before water reaches sensitive membrane equipment. PAC-01 is used as a coagulant, not as a complete treatment system.

Its role is to destabilize and remove particulate matter in a clarification or filtration stage ahead of the membrane. The grade is positioned for drinking-water and color-sensitive process-water applications, and its spray-dried form dissolves rapidly when the solution is prepared correctly.

Treatment Problem and Causes

The relevant feed is typically surface or process water upstream of UF, NF or RO. The main difficulty is that fine colloids, organic-coated particles and metal hydroxides can raise SDI, block pores or create deposits.

As a result, untreated water may show unstable turbidity, weak settling, short filter runs or poor solid-liquid separation. A useful product page must distinguish the removable suspended or colloidal fraction from dissolved contaminants that require other processes.

PAC-01 Solution

The recommended role for PAC-01 is to destabilize and remove particulate matter in a clarification or filtration stage ahead of the membrane. It is normally applied before sedimentation, DAF or media filtration that protects the membrane; never directly assumed at the membrane inlet.

When PAC hydrolyzes in water, positively charged aluminium species reduce particle repulsion. Hydroxide floc then enmeshes fine matter and creates aggregates that can be settled, floated or filtered. Effective rapid mixing must distribute the coagulant before slower floc growth begins.

Product Specifications

Parameter Specification
Product model PAC-01
Chemical name Polyaluminium Chloride
Appearance White powder
Al2O3 content 30% min.
Basicity 45–55%
Water-insoluble matter 0.1% max.
Drying type Spray dried
Preparation concentration 2–20% solution before dosing
Typical solid-product dosage About 1–15 g/MT; determine the optimum by jar test
Standard packaging 25kg inner plastic bag with polypropylene woven outer bag

Application Scenarios and Control Points

Relevant use cases include RO pretreatment, ultrafiltration feed preparation and industrial reuse polishing.

RO Pretreatment
Ultrafiltration Feed Preparation
Industrial Reuse Polishing

Operators should follow turbidity, SDI where applicable, filter performance, membrane differential pressure and cleaning frequency. These indicators show whether the treatment target is being achieved and whether the dose is creating unnecessary sludge or downstream carryover.

Turbidity
SDI Where Applicable
Filter Performance
Membrane Differential Pressure
Cleaning Frequency
The key process boundary is clear: dose, pH and carryover must be checked with the membrane supplier because residual coagulant can also foul membranes.

How Polyaluminium Chloride Works

PAC is a pre-hydrolyzed inorganic polymeric coagulant. After dispersion, its cationic aluminium species adsorb on negatively charged particles and reduce the electrical barrier that keeps them apart. As hydrolysis continues, aluminium hydroxide floc provides a sweep-coagulation surface that captures fine particles.

Separation performance therefore depends on product dose, pH, alkalinity, mixing sequence, flocculation time and the selected settling, DAF or filtration equipment.

1

PAC Dosing

PAC is rapidly dispersed to destabilize fine particulate and colloidal material.

2

Floc Formation

Slower mixing allows fine matter to form larger, separable aggregates.

3

Solids Separation

Sedimentation, DAF or media filtration removes the formed floc.

4

Membrane Protection

UF, NF or RO receives water with a lower and more stable particulate load.

Recommended Application Approach

Characterize the surface or process water upstream of UF, NF or RO, including pH, turbidity or TSS and the contaminants that may remain dissolved.

Prepare the solid PAC as a 2–20% solution with clean water. Allow complete dispersion and keep the solution system clean.

Run a jar test around the TDS reference range of about 1–15 g/MT and reproduce the intended process position: before sedimentation, DAF or media filtration that protects the membrane; never directly assumed at the membrane inlet.

Use rapid mixing for coagulant distribution, then slower mixing for floc growth. Avoid excessive shear after the floc has formed.

Select the lowest stable dose that meets the target while monitoring turbidity, SDI where applicable, filter performance, membrane differential pressure and cleaning frequency.

How to Choose the Right PAC Grade

Choose PAC-01 because 0.1% maximum insolubles and white appearance favor clean pretreatment duties. Start with the product specification, but make the final selection on representative water.

Compare at least three doses, include the current coagulant as a control and keep pH, mixing energy and settling time consistent. The TDS gives about 1–15 g/MT for solid PAC as a general reference; the optimum may differ with the water and must be confirmed by laboratory and plant trials.

PAC Grade Comparison

PAC-01 and PAC-02 are the starting grades for drinking-water and cleaner process-water duties. PAC-01 is white with 45–55% basicity, while PAC-02 is yellow with 45–85% basicity. PAC-031 is the industrial grade with 29% minimum Al2O3, 50–90% basicity and a higher allowable insoluble fraction. Grade selection should reflect treated-water requirements, feed variability and total treatment cost rather than color alone.

Why Work With Bluwat Chemicals

Bluwat Chemicals has manufactured water-treatment chemicals since 2000. The company operates three production bases, exports to more than 80 countries and has served over 5,000 industrial customers. For membrane feed-water pretreatment, this experience supports grade matching, sample evaluation and communication between the buyer, sales team and technical team before scale-up.

Since 2000
Water-treatment chemical manufacturing experience
3
Production bases supporting product supply
80+
Export markets worldwide

Direct factory support includes batch COA, current TDS and SDS documents, packing checks and traceable quality control for the selected PAC grade. Buyers can compare PAC-01 with other PAC grades using actual water rather than relying only on product color or one headline parameter.

Batch COA
Current TDS and SDS Documents
Packing Checks
Traceable Quality Control
Sample Evaluation
PAC Grade Matching
Commercial terms, delivery schedule, freight and destination documentation are confirmed by the responsible sales representative.

Packaging, Solution Preparation and Storage

Solid PAC is packed in a 25kg inner plastic bag with a polypropylene woven outer bag. Store the sealed original package in a cool, dry place away from heat, flame and direct sunlight.

Prepare a 2–20% solution before dosing, using clean water and sufficient mixing. Do not use wet, contaminated or severely caked material without evaluation.

Frequently Asked Questions

Is PAC-01 suitable for membrane feed-water pretreatment?

It is a candidate grade because 0.1% maximum insolubles and white appearance favor clean pretreatment duties. Suitability must still be verified with the actual water, treatment objective and downstream process.

What PAC dosage should the plant use?

The supplied TDS gives about 1–15 g/MT for solid PAC as a general reference. Start with a dose-response jar test and confirm the result at plant scale; do not copy a dose from another site.

How should the 25kg PAC powder be prepared?

Prepare a 2–20% solution using clean water and adequate mixing. Avoid dumping dry powder directly into a poorly mixed tank, and protect the stored product from moisture.

What should be checked after dosing PAC in membrane feed-water pretreatment?

Track turbidity, SDI where applicable, filter performance, membrane differential pressure and cleaning frequency. Also verify the limitation that dose, pH and carryover must be checked with the membrane supplier because residual coagulant can also foul membranes.

Validate PAC-01 Before UF, NF or RO

Use representative feed water to establish the lowest stable dose, verify solids separation and confirm residual-coagulant compatibility with the membrane supplier before full-scale application.