Omya Optical® S-SY is a fine, high-purity calcium carbonate slurry used in activated sludge systems for municipal and industrial wastewater treatment. It aids in faster sedimentation, improves dewatering, and stabilizes pH. This product is white in color and is available in suspension form. It meets ISO 9001, ISO 14001, ISO 45001, and Clean Air Act certifications, among others.

Functions: Filler, Pigment

Chemical Family: Calcium Salts, Carbonates

End Uses: Activated Sludge Systems

Applicable Processes: Industrial Wastewater Treatment, Municipal Wastewater Treatment, Neutralization, Wastewater Neutralization

Features: Faster Sedimentation, High Alkali Stability, Improved Dewatering, Reduced Bulking, pH Stabilizing

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Applicable Processes
Industrial Additives End Use
Main Applications
  • Neutralization of acidity and stabilization of pH within the activated sludge treatment process.
  • Improved formation of bio-flocs in activated sludge.
  • Reduced bulking and better sedimentation before decantation.
  • Improved dewatering of sludge from municipal wastewater treatment.
  • Improved alkalinity control.

Properties

Color (Properties)
Physical Form
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (at 100°C, Water)approx. 100°C-
Decomposition Temperaturemin. 400°C-
Solubility in Water (at 75°C)0.018g/l-
Solubility in Water (at 20°C)0.014g/l-
Density (at 20°C)1.8 - 2.1g/ccDIN-ISO 787/10
Vapor Pressure (at 20°C)23.4hPa-
Burning Number1--
Flammability (Liquids)Will not burn--
Melting Point (at 0°C)0°C-
pH Value (at 20°C, 100 g/l Concentration)8.5 - 11-DIN-ISO 787/9
OdorCharacteristic--
AppearanceWhite suspension--
Chemical Analysis
ValueUnitsTest Method / Conditions
Total Carbonate Content99%-
Specifications
ValueUnitsTest Method / Conditions
pH Value (at 25°C)9.5--
Viscosity Ex Works200mPa.sBrookfield viscosimeter, 100 rpm, Omya GLS 015
Slurry Density (at 25°C)1.87g/cc-
Solids Content74%Omya GLS 028

Regulatory & Compliance

Packaging & Availability

Packaging and Stability Information
  • Bulk
  • Tote