Concerned about the environmental consequences associated with the risks of discharge and environmental pollution, our Client decided to call NISKAE, specialist in the treatment and recycling of industrial wastewater, for a solution adapted for his industrial use. The main goal of this project is to treat the washing water and reuse it. The targeted benefit is therefore multiple, namely the elimination of hazardous storage, the reduction in reprocessing costs, the absence of discharge into the municipal water system and the reduction in water consumption.
Our laboratory has analyzed an initial washing water sample which was generated by the two Nilfisk floor auto scrubbers used. Based on this analysis, several coagulation and flocculation tests were performed to establish the best coagulant-flocculant complex solution. The custom-made formulation made it possible to reduce the concentration of heavy metals without affecting the pH value. The determined water treatment reagent effectively reduced the concentration of heavy metals, such as the iron concentration which decreased from 2.99 mg/L to 0.52 mg/L, as well as the zinc concentration, which decreased from 4.64 mg/L to 0.88 mg/L. The advantage of a specific and custom-made formulation has allowed us, in this case, to limit the dosage of the coagulant-flocculant product to 2 g/L. The implementation of the treatment and the operation of the proposed microstation makes it simple of use.
