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Silicon rods generate auxiliary waste liquid and cleaning wastewater during cutting, grinding, slicing, and other processes. The treatment difficulties mainly include high concentrations of organic matter (mainly polyethylene glycol, etc.), suspended solids (mainly silicon powder, silicon carbide), and pollutants such as fluoride ions and acid-base (mainly hydrofluoric acid, nitric acid, and other buffering acids).

Our company classifies wastewater reasonably and combines it with ISNA ®/ DGSB ® Upgrade the denitrification process to achieve standard treatment of high fluoride and high nitrogen wastewater, recycle and reuse cutting wastewater, and achieve maximum resource utilization of pollutants.