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30% Min. Al2O3 Yellow Powder PAC-02 Polyaluminium Chloride for Sand Filtration

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

Product Description

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

yellow powder PAC-02

sand filtration polyaluminium chloride

Product Description

Sedimentation and Sand-Filtration Pretreatment

PAC-02 Yellow Polyaluminium Chloride for Sedimentation and Sand-Filtration Pretreatment

Spray-dried yellow PAC developed to build stronger settleable floc and reduce the fine-particle load reaching rapid sand filters.

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 sedimentation and sand-filtration pretreatment. 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 raw water feeding conventional clarification and rapid filters.

Product Overview

In sedimentation and sand-filtration pretreatment, the practical objective is to reduce fine-particle carryover that shortens filter runs and raises backwash demand. PAC-02 is used as a coagulant, not as a complete treatment system.

Its role is to build stronger settleable floc and lower the solids load presented to the filter. 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.

Treatment Problem and Causes

The relevant feed is typically raw water feeding conventional clarification and rapid filters. The main difficulty is that weak or undersized floc leaves the clarifier and enters the filter, where it blocks pores or passes through.

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 build stronger settleable floc and lower the solids load presented to the filter. It is normally applied at rapid mix before flocculation and sedimentation, with hydraulic conditions checked at each stage.

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 municipal filters, industrial raw-water plants and pressure-filter systems.

Municipal Filters

Industrial Raw-Water Plants

Pressure-Filter Systems

Operators should follow settled turbidity, floc breakage, filter head loss, run length and backwash water use. These indicators show whether the treatment target is being achieved and whether the dose is creating unnecessary sludge or downstream carryover.

Settled Turbidity

Floc Breakage

Filter Head Loss

Filter Run Length

Backwash Water Use

The key process boundary is clear: poor flocculation hydraulics cannot be corrected solely by increasing chemical dose.

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.

Rapid Mixing

PAC-02 is distributed quickly to destabilize fine suspended and colloidal particles.

Flocculation

Controlled hydraulic conditions support strong floc growth without excessive breakage.

Sedimentation

Settleable floc is removed to reduce solids carryover to the filters.

Sand Filtration

Lower solids loading supports longer filter runs and more controlled backwashing.

Recommended Application Approach

Characterize the raw water feeding conventional clarification and rapid filters, 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 flocculation and sedimentation, with hydraulic conditions checked at each stage.

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 settled turbidity, floc breakage, filter head loss, run length and backwash water use.

How to Choose the Right PAC Grade

Choose PAC-02 because PAC-02 is a flexible general-purpose grade for conventional water-treatment trains. 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 sedimentation and sand-filtration 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

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 sedimentation and sand-filtration pretreatment?

It is a candidate grade because PAC-02 is a flexible general-purpose grade for conventional water-treatment trains. 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 sedimentation and sand-filtration pretreatment?

Track settled turbidity, floc breakage, filter head loss, run length and backwash water use. Also verify the limitation that poor flocculation hydraulics cannot be corrected solely by increasing chemical dose.

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Cationic Polyacrylamide

Polyaluminium Chloride

Quaternary Ammonium Polymer

Nonionic Polyacrylamide

Color Removal Chemical

Drilling Mud Additives

Dicyandiamide Formaldehyde Resin

Polyelectrolyte Flocculant

Ferric Sulphate

Color Fixing Agent

Coagulant And Flocculant

Plant Based Deodorant

Anti Foaming Chemicals

Chemical Demulsifier

Water Purifying Chemicals

Water Decoloring Agent

Anionic Polyacrylamide

Cationic Polyacrylamide

Polyaluminium Chloride

Quaternary Ammonium Polymer

Nonionic Polyacrylamide

Color Removal Chemical

Drilling Mud Additives

Dicyandiamide Formaldehyde Resin

Polyelectrolyte Flocculant

Ferric Sulphate

Color Fixing Agent

Coagulant And Flocculant

Plant Based Deodorant

Anti Foaming Chemicals

Chemical Demulsifier

products details

30% Min. Al2O3 Yellow Powder PAC-02 Polyaluminium Chloride for Sand Filtration

30% Al2O3 polyaluminium chloride

yellow powder PAC-02

sand filtration polyaluminium chloride

PAC-02 Yellow Polyaluminium Chloride for Sedimentation and Sand-Filtration Pretreatment

Product Short Description

Product Overview

Treatment Problem and Causes

PAC-02 Solution

Product Specifications

Application Scenarios and Control Points

How Polyaluminium Chloride Works

Rapid Mixing

Flocculation

Sedimentation

Sand Filtration

Recommended Application Approach

How to Choose the Right PAC Grade

PAC Grade Comparison

Why Work With Bluwat Chemicals

Packaging, Solution Preparation and Storage

Frequently Asked Questions

Is PAC-02 suitable for sedimentation and sand-filtration pretreatment?

What PAC dosage should the plant use?

How should the 25kg PAC powder be prepared?

What should be checked after dosing PAC in sedimentation and sand-filtration pretreatment?

Validate PAC-02 Across the Complete Treatment Train