Concerned about its environmental impact, our Client decided to call upon NISKAE to obtain an efficient solution for the treatment of its washing water. Our customer provided the NISKAE laboratory with samples of the wastewater generated by the washing operations. The analysis of the water revealed a high concentration of iron of 4.95 mg/L and zinc of 1.42 mg/L. The presence of cadmium of 0.17 mg/L will also have to be lowered. After several series of laboratory tests, a precise and unique reagent powder was developed with a dosage of 2.5 g/L. By adding this coagulant-flocculant reagent, the analysis of the treated water reveals a lowered iron concentration of 0.41 mg/L, a zinc concentration of cadmium lower than 0.01 mg/L. The sludge generated by the treatment is non-sticky and well dehydratable.
The powdery product elaborated by NISKAE also allows to stabilize the neutrality of the pH value of the effluent. The main objective of our customer is to find an efficient solution for the treatment and the discharge of its washing water.