Scaling indices, filters, coagulation, chlorination, chemical dilution and pH neutralization.
Compute the Langelier Saturation Index with the Standard Methods 2330 pHs, the Ryznar and Puckorius indices from pH, temperature, TDS, calcium hardness and alkalinity, with a hardness converter and an LSI versus temperature chart.
Langelier, Ryznar, PuckoriusSize sand, dual-media or mixed-media filters: area, filtration rate against U.S. practice or NBR 12216, number of filters with one in backwash, standard vessel diameter, layers, backwash flow, washwater use and wash pump.
Rate, diameter, backwashTurn the jar test dose into commercial coagulant feed (lb/d and gal/h) and cost, and compute the velocity gradient G with temperature-dependent viscosity, detention time, Gt and mixer power for rapid mix and tapered flocculation.
Dose, G value, GtCompute chlorine dose (demand + residual), sodium hypochlorite feed in gal/h and gal/d with strength loss, calcium hypochlorite and chlorine gas use, contact tank CT against the EPA requirement, and residual against the EPA MRDL.
Hypochlorite, gas, CTWork out how much sulfuric acid, caustic soda or bleach and how much water to mix for a target weight percent, with tabulated densities, volume shrinkage, heat of dilution and estimated final temperature.
Mass balance and heatWork out how much sulfuric acid, hydrochloric acid, caustic soda or lime to feed to adjust wastewater pH, from a titration curve pasted from Excel or from strong acid and base theory, with metering pump flow, annual cost and discharge limits.
Titration curve, dose, costImportant notice: Indus Metrics tools produce estimates and pre-sizing results from the data you enter and from published engineering methods. They do not replace design, calculations or reports signed by a licensed professional engineer (PE), nor verification against the applicable codes, standards and regulations, such as OSHA rules and the ASME codes. Material and fuel properties vary: check manufacturer data or your own process analyses before deciding. By using this site you agree to the Terms of Use.
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