NeutralizationActivated Sludge Process

Safe, Reliable Wastewater Treatment

Omya improves the neutralization and buffering performance for both municipal and industrial wastewater treatment. Our mineral-based products are highly reactive, safe to use and deliver process efficiencies and savings for your operation.
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Optimal bacteriological activity relies on a stable environment at neutral pH. Omya Optical neutralizes wastewater quickly, accelerating biological processes and providing maximum buffer capacity. It improves floc sedimentation in the clarifier and sludge dewatering. Omya Optical is available as either powder or slurry to suit your needs.
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Upgrade Your Activated Sludge Process

Omya Neutrasorb is made from finely ground, Natural Calcium Carbonate of high purity and reactivity. It neutralizes and buffers acidic industrial wastewater as a safe alternative to caustic soda NaOH, improving process efficiency and providing significant operational cost savings. Omya Neutrasorb is available as either powder or slurry.
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Neutralize Industrial Wastewater Safely

Omya Neutramaxx is a highly reactive milk of lime with proven long-term stability for industrial wastewater pH adjustment and precipitation. It is safer to handle than caustic soda, reducing risk to operators without compromising on performance. Low consumable costs and stable pricing make this an economical, low-risk solution for your operation.

Safely Manage Your pH to the Right Level

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pH Adjustment


In addition to our wide range of Calcium Carbonates, Omya offers a variety of complementary products in wastewater applications from leading suppliers of specialty chemicals:
  • Flocculants & coagulants
  • Antiscalants
  • Corrosion inhibitors
  • Dispersants
  • Other additives
Please get in touch for local product availability or technical assistance. 


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Omya Optical – A natural product to optimize the activated sludge process

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