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Polyaluminium Chloride
Created with Pixso. 30% Min. Al2O3 Spray-Dried 25kg Bag PAC-02 Polyaluminium Chloride for Seasonal Raw Water Treatment

30% Min. Al2O3 Spray-Dried 25kg Bag PAC-02 Polyaluminium Chloride for Seasonal Raw Water Treatment

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-02
Chemical Name:
Polyaluminium Chloride
Appearance:
Yellow Powder
Al2O3 Content:
30% Min.
Basicity:
45-85%
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
Highlight:

30% Al2O3 polyaluminium chloride

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spray-dried PAC-02 water treatment

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25kg bag polyaluminium chloride

Product Description
Seasonal Raw-Water Coagulant

PAC-02 Yellow Polyaluminium Chloride for Seasonal Raw-Water Treatment

Spray-dried yellow PAC developed for dose-control programs where source water shifts between dry-season color and wet-season turbidity.

Al2O3 Content
30% Min.
Basicity
45–85%
Insolubles
0.1% Max.
Standard Packaging
25kg Bags

Product Short Description

PAC-02 is a spray-dried yellow powder polyaluminium chloride developed for seasonal raw-water treatment. It provides 30% min. Al2O3, 45–85% basicity and 0.1% max. insolubles. The product is supplied in 25kg bags and should be selected through jar tests using the actual source that shifts between dry-season color and wet-season turbidity.

Product Overview

In seasonal raw-water treatment, the practical objective is to avoid using one year-round dose when the dominant particles and coagulant demand change. PAC-02 is used as a coagulant, not as a complete treatment system.

Its role is to serve as the primary coagulant within a dose-control program based on source conditions. The grade is positioned for drinking-water and general process-water applications, and its spray-dried form dissolves rapidly when the solution is prepared correctly.

Dry-Season Conditions

Dry periods may concentrate natural organic matter and increase the importance of color response, pH, alkalinity and temperature.

Wet-Season Conditions

Storm runoff may introduce mineral solids, increase turbidity and change the required dose, floc behavior and sludge yield.

Treatment Problem and Causes

The relevant feed is typically a source that shifts between dry-season color and wet-season turbidity. The main difficulty is that dry periods may concentrate organics while storms add mineral solids, altering charge demand and floc behavior.

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-02 Solution

The recommended role for PAC-02 is to serve as the primary coagulant within a dose-control program based on source conditions. It is normally applied at rapid mix before a clarification process whose setpoints are adjusted by season.

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-02
Chemical name Polyaluminium Chloride
Appearance Yellow powder
Al2O3 content 30% min.
Basicity 45–85%
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 monsoon-affected plants, seasonal reservoirs and mixed-source municipal systems.

Monsoon-Affected Plants
Seasonal Reservoirs
Mixed-Source Municipal Systems

Operators should follow pH, alkalinity, turbidity, color, temperature, jar-test optimum and sludge yield. These indicators show whether the treatment target is being achieved and whether the dose is creating unnecessary sludge or downstream carryover.

pH
Alkalinity
Turbidity
Color
Temperature
Jar-Test Optimum
Sludge Yield
The key process boundary is clear: temperature and organic changes can require process changes beyond a simple dose adjustment.

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.

Recommended Application Approach

Characterize the source that shifts between dry-season color and wet-season turbidity, 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: at rapid mix before a clarification process whose setpoints are adjusted by season.

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 pH, alkalinity, turbidity, color, temperature, jar-test optimum and sludge yield.

How to Choose the Right PAC Grade

Choose PAC-02 because the wider basicity range provides a practical grade for variable source water. 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 seasonal raw-water treatment, 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-02 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-02 suitable for seasonal raw-water treatment?

It is a candidate grade because the wider basicity range provides a practical grade for variable source water. 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 seasonal raw-water treatment?

Track pH, alkalinity, turbidity, color, temperature, jar-test optimum and sludge yield. Also verify the limitation that temperature and organic changes can require process changes beyond a simple dose adjustment.

Retune PAC-02 for Dry- and Wet-Season Conditions

Use representative seasonal samples to update dosage and process setpoints while monitoring turbidity, color, temperature, jar-test optimum and sludge yield.