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Liquid PAC for Drinking Water: Trial Guide | Beta Pramesti
Select liquid PAC for drinking water from lot specifications, active basis, basicity, impurities, jar tests, aluminium residual, sludge, and dosing proof.
Liquid PAC for drinking water is a candidate coagulant, not proof that water is immediately safe to drink. A plant should verify grade and lot, active basis, basicity, impurities, pH response, jar tests on the source water, aluminium residual, sludge production, calibrated dose, and downstream filtration and disinfection performance before routine use.
PT Beta Pramesti Asia, through beta.co.id, supplies liquid PAC and supports coagulation reviews for drinking-water and process-water plants in Indonesia. Product, dose, and acceptance criteria remain subject to lot documents, test results, downstream treatment, and the applicable finished-water requirements.
Last technically reviewed: 2 August 2026.
What does liquid PAC for drinking-water treatment mean?
PAC, or polyaluminium chloride, destabilises colloidal particles so that floc can be separated by sedimentation or DAF and filtration. Procurement specifications must define what the “drinking” label means; a trade name is not automatic evidence that a particular lot suits the plant and source water.
SNI 3822:2018 Polialuminium klorida was listed as current on 2 August 2026 and covers quality requirements and test methods for liquid and solid PAC used as a water-clarification chemical. That product standard is not an operating dose and does not replace finished-water verification.
Indonesia Ministry of Health Regulation No. 2 of 2023 was listed as current on 2 August 2026 and provides the environmental-health requirements framework, including drinking water. Each facility should confirm the applicable schedules, surveillance requirements, permits, customer specifications, and later amendments.
What data determine liquid PAC selection?
An auditable choice connects product identity with source-water response. Price per kilogram and dose in mg/L are not comparable unless active content, density, pH and alkalinity demand, sludge volume, and finished-water quality share a common basis.
| Procurement or process input | Minimum evidence | Decision supported |
|---|---|---|
| Product and lot identity | Product name, grade, lot, manufacturer, production date, TDS, SDS, and the delivered lot’s Certificate of Analysis | Traceability and conformity with the technical approval |
| Composition basis | Active content with explicit units/basis, basicity, density, pH, insolubles, and specified impurities | Like-for-like product comparison and dose-to-volume conversion |
| Source-water quality | Turbidity/TSS, colour, pH, alkalinity, temperature, TOC/organics, metals, algae, and seasonal variation | Dose sweep, pH correction needs, and changing performance risk |
| Treatment process | Rapid mix, flocculation, sedimentation/DAF, filtration, disinfection, and recycle streams | Mixing conditions, floc strength, unit loading, and downstream effects |
| Dosing system | Product concentration, tank/pipe/pump materials, flow, pressure, turndown, calibration, and containment | Feed rate, compatibility, alarms, working stock, and spill response |
| Output criteria | pH, turbidity, aluminium residual, relevant chemical/microbiological parameters, sludge, and regulatory/customer targets | Accept, hold, re-test, or reject against written criteria |
To compare other forms, grades, and packages, use the PAC buyer page, industrial liquid PAC, and water and wastewater coagulants. Before a dose sweep, also review the PAC-versus-alum comparison against the same process criteria. Select any polymer aid separately through industrial flocculants; adding polymer without a dose sweep can change floc, filtration, and sludge.
How does a PAC jar test become a plant trial?
A jar test screens candidates, but the permanent setpoint requires plant evidence. Preserve sample identity, dose basis, mixing conditions, settling time, temperature, and analytical method so the bench result remains traceable when converted to dosing-pump output.
- Establish the baseline. Record source, time, temperature, pH, alkalinity, turbidity/TSS, colour, process condition, current coagulant and dose, and finished-water quality.
- Verify the lot. Match label, CoA, density, active basis, and acceptance parameters with procurement documents; quarantine a lot whose identity is unclear.
- Run a dose sweep. Compare a control, reference product, and candidate on the same sample. Record final pH, floc form and strength, supernatant, settling, filterability, and sludge volume.
- Repeat critical conditions. Test different sources or seasons, organic/algae changes, temperature, and limiting pH or alkalinity.
- Convert the dose basis. Turn the product or active mg/L result into L/h using flow, density, and active content for the correct lot; do not copy an old pump number.
- Run a controlled plant trial. Begin within the approved envelope, verify pump output, take matched samples, and observe clarifier, filter, and disinfection response.
- Release to routine operation. Approve the setpoint only when finished-water quality, aluminium residual, sludge, consumption, and process stability meet the criteria repeatedly.
Metering equipment should be proven with the working liquid. Compare Beta dosing pumps or Watermart dosing pumps after defining flow, pressure, wetted materials, turndown, and standby duty.
What evidence should be retained after lot release?
Minimum records connect the lot, storage tank, setpoint, and water quality. Without that chain, a turbidity or aluminium-residual change cannot be separated from source water, dose, mixing, filter, or product-lot changes.
| Record | Contents | Review trigger |
|---|---|---|
| Receiving and storage | Lot, quantity, seals, package condition, CoA, inspection results, destination tank, and retained sample | New lot, damaged package, contamination, stratification, or exceeded storage period |
| Dosing | Setpoint, calibrated output, treated flow, concentration/density, run hours, and stock consumption | Consumption differs from totalised flow or pump output changes |
| Process quality | Source water, post-coagulation/sedimentation, post-filter, and finished-water points in the procedure | Source, rainfall, algae, pH, turbidity, filter run, or residual changes |
| Sludge | Volume, character, dewatering, filtrate/return, and handling destination | More sludge, poor separation, or a recycle stream disrupts treatment |
| Change control | Reason, tests, approver, trial limits, stop conditions, and final result | Change of grade, lot, supplier, source water, or process configuration |
Liquid PAC for drinking-water FAQs
Does a “drinking” label make PAC safe to use without testing?
No. A product name is not evidence for the lot, dose, or finished water. Verify specifications, CoA, SDS, procurement requirements, jar-test and plant-trial results, relevant residuals, and the filtration and disinfection stages.
Can a liquid PAC dose be copied from another plant?
No. Dose depends on source-water quality, product active content and density, pH and alkalinity, temperature, mixing, separation equipment, recycle streams, and finished-water targets. Test the actual water and record the calculation basis before changing the setpoint.
What is required for an evaluation and quotation?
Send source and finished-water analyses, flow and quality variation, process diagram, current coagulant and dose, jar-test results, reference-product specification/CoA, dosing-system capacity and materials, monthly requirement, storage, delivery location, and acceptance criteria through the Beta Pramesti Asia contact page.