Chemical wastewater solutions usually need to consider salts, organic matter, acids and alkalis, heavy metals, and evaporation load at the same time.
Key indicators
- TDS and major ion composition.
- COD, TOC, and refractory organic matter.
- pH, acid and alkali concentration, and corrosivity.
- Metal ions, suspended solids, and scaling risk.
Fluctuation information
In addition to average values, peak values, batch differences, cleaning wastewater, and abnormal operating conditions should also be considered to avoid designing based on a single sample only.
Engineering Recommendations
Segregated collection and verification are recommended first to avoid mixing wastewater streams with significantly different properties before high-cost end-of-pipe treatment.