Plutocalc is the most complete and popular problem solver suite for water treatment, wastewater, hydraulics, environmental chemistry and unit conversions.

Solver list:

Conversions
- Angle
- Area
- Conductivity and resistivity
- Density and concentration
- Energy
- Flow - mass
- Flow - volumetric
- Flux and rates
- Forces
- Hardness in water
- Length
- Mass
- Power
- Pressure
- Speed
- Temperature
- Time
- Volume

Geometry
- Buffer tank capacity
- Cylinder volume
- Cone volume
- Cube volume
- Circle properties (radius, diameter, perimeter and area)
- Horizontal cylindrical tank volume
- Triangle properties with sides/angles determination
- Municipal plants flow estimation
- Nominal pipe sizes and wall thickness
- Sieve sizes according
- Rainfall volume

Energy and power
- Head loss in pipes
- Open channels or partially filled pipes
- Orifice plates with incompressible fluids
- Parshall flumes flow measurement
- Rectangular flumes flow measurement
- Flow adjustment for dosing/metering pumps
- Pump power and energy consumption
- Blowers and compressors power and energy consumption
- Mixing velocity gradient
- Reynolds number and speed

Contaminants
- Boiler water quality and blowdown
- Periodic table of elements with oxidation states
- Ionic Balance and Conductivity
- CO2 conductivity in pure water
- TOC, COD and KMnO4 relations
- Langlier Saturation Index - LSI
- Silt Density Index - SDI
- Modified Fouling Index - MFI
- Sludge Volume Index - SVI

Solutions
- Chemical dosing flow, mass and concentrations
- Dry chemical dosing flow
- Chemical solutions density database
- Water properties (viscosity, density)
- Gases properties (density and molecular weight)
- Oxygen solubility in water
- Multiple streams blending
- Specific gravity, Baumé, Brix and API relations

Adsorption and Ion Exchange
- Sorption/Exchange capacity
- Empty Bed Contact Time and BV/h
- Ion Exchange regeneration
- Ion Exchange softener design

Filters and membranes (Reverse Osmosis, Ultrafiltration and Nanofiltration)
- Cylindrical filter rate and speed
- Microfiltration / Ultrafiltration comparison and normalization
- Reverse Osmosis membranes and datasheets comparison
- Reverse Osmosis plant normalization and performance comparison
- Reverse Osmosis / NF skid design
- Recovery
- Recovery for membranes in series
- Normalized permeability
- Granular media head loss (sand, resins, anthracite, carbon and custom)
- Granular media backwash expansion rate

Reactions
- pH equilibrium for: Ammonia, Sulfates, Boric Acid, Sulfides, Silicic Acid, Phosphates and Nitrous Acid
- Equilibrium for Carbonates with temperature dependence
- Disinfection with Chlorine, Chlorine Dioxide, Chloramines and Ozone
- Disinfection with Chlorine for Giardia Cysts
- Disinfection with UV
- Iron oxidation and precipitation
- Manganese oxidation and precipitation
- Sludge from chemicals
- Food-to-microorganisms ratio - F/M
- Ultimate BOD

Clarifiers
- Surface loading rate - circular
- Surface loading rate - rectangular
- Hydraulic retention time - HRT
- Solids retention time - SRT
- Solids loading rate
- Volumetric solids loading rate
- Return activated sludge recycle - RAS
- Discrete sedimentation
- Sludge concentration and mass
- Sludge age

Finance
- Ordinary annuity
- Annuity due
- Compound annual growth rate - CAGR
- Interest rate conversions
- Simple interest

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!!! Important notice for WINDOWS PHONE 8 and 8.1 users !!!

Plutocalc uses the device internal Internet Explorer browser to display it's graphical interface. Unfortunately due the poor memory management of this browser and the high demand of Plutocalc some devices might experience RAM memory shortage and crashes.

If you experience this problem I highly recommend to try the online version (is the same) from www.plutocalc.com
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