Water Treatment Chemicals

Our Service

We offer the right chemicals to cut costs and improve water quality—supporting you from selection to operation.

  • Treated water fails
    to meet standards
  • Need to lower
    running costs
  • Want to reduce
    sludge generation

If you are currently using chemical treatment but not achieving the results you need, we invite you to consult with us. We will help you find a solution using our proprietary chemical product, the ALSi Floc N100 Series

The ALSi Floc N100 Series

The ALSi Floc N100 Series is a water treatment chemical independently developed by Japan ALSi Co., Ltd., a water treatment manufacturer specializing in biological treatment. "ALSi Floc N100 series".

This product is designed to efficiently remove substances that are difficult to break down through biological treatment alone, while having no adverse effect on microbiological processes. It serves as a pre-treatment chemical and is formulated as a highly safe coagulant with no biological toxicity.

Compared to conventional inorganic coagulants, the ALSi Floc N100 Series delivers superior performance at lower dosage levels. Because it does not cause significant pH fluctuation in wastewater, the need for large quantities of neutralizing agents is eliminated — helping to keep the Total Dissolved Solids (TDS) in treated water at low levels.

Furthermore, the product itself does not become a solid mass that contributes to sludge accumulation. By selectively coagulating only the contaminants present in the wastewater, it minimizes the generation of sludge (waste byproduct) resulting from the treatment process.

Ex.1 Wastewater from water‑soluble cutting oil (automotive parts manufacturer)

Left: Wastewater before treatment
Center: Result using a typical coagulant
→ A large amount of sludge is generated
Right: Result using the ALSi coagulant → High clarity with little sludge

Ex.2 Paint wastewater (automobile factory)

Left: Wastewater before treatment
Center: Result using a conventional coagulant → A large amount of sludge is generated
Right: Result using the ALSi coagulant → High clarity with little sludge

Comparison between the ALSi Floc N100 series and conventional coagulants

ALSi Floc N100 series Inorganic coagulants
Composition Special cationic
and anionic polymers
FeCl₂, FeCl₃, FeSO₄, AlCl₃,
polyferric sulfate,
PAC, Ca(OH)₂
pH No pH adjustment required Requires pH adjustment (as pH levels drop)
Dosage Effective at low doses (several hundred ppm) Requires large doses (several hundreds to tens of thousands of ppm)
Floc weight Forms light flocs; suitable for Dissolved Air Flotation (DAF) systems Forms heavy flocs; suitable for sedimentation tanks
Sludge generation Minimal sludge; generates no solids from the chemical itself. High sludge; forms hydroxide precipitates that add to waste volume.

Chemical treatment process

We identify the best chemical treatment through rigorous lab testing of your actual wastewater. Once validated via an on-site trial and stabilized with our expert support, the solution is deployed at full scale.

Example of cost reduction

In a paint wastewater example at an automobile factory, using the ALSi Floc N100 series achieved annual cost savings of 2.46 million yen (16K USD)

Product lineup

ALSi offers a wide lineup of chemicals tailored to the treatment target and purpose, capable of addressing various issues such as sludge reduction, COD removal, decolorization and removal of metal ions.

ALSi Floc N100 series
Next-generation organic coagulant for minimal sludge yield
ALSi FLOC series
A wide variety of polymer coagulants
Torshirin series
Coagulant for removing phosphorus and metal ions
Actigem series
COD removal and decolorization
Actigen series
Anti-Bulking Agent

If you have any concerns regarding wastewater treatment, please consult with us here.

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