• Chemical Oxygen Demand (COD) Calculator
  • Biochemical Oxygen Demand (BOD) Calculator
  • Ammoniacal Nitrogen (NH₃-N) Measurement Calculator
  • Conveyance of Water Calculator
  • Design of Chlorination System for Wastewater Disinfection Calculator
  • Circular Settling Tank Design Calculator
  • Complete Mix Activated Sludge Reactor Design Calculator
  • Plastic Media Trickling Filter Design Calculator
  • Solid Bowl Centrifuge for Sludge Dewatering Calculator
  • Aerated Grit Chamber Design Calculator
  • Aerobic Digester Design Calculator
  • Anaerobic Digester Design Calculator
  • Rapid Mix & Flocculation Basin Design Calculator
  • Trickling Filter Design (Using NRC Equations) Calculator
  • Stormwater Flow Determination Calculator
  • Sewage Effluent Disposal Calculator
  • Sewage Flow Velocity Calculator
  • Hydraulic Design of Sewers & Stormwater Drain Sections Calculator
  • Noise Pollution Calculator
  • Population Forecast Method Calculator
  • Sewage Quality & Characteristics Estimator
  • Sanitary Sewer System Design Calculator
  • Sewer Construction & Maintenance Calculator
  • Peak Drainage Discharge Estimator
  • Surface Water Hydrology Calculator
  • Water Demand & Quantity Calculator
  • Groundwater Resources Calculator
  • Water Treatment Plant Design Calculator