flocculation air flotation treatment of wastewater in brazil
The invention provides a normal pressure novel process of preparing poly aluminum chloride in high purity with an n-step segmentation method, wherein, the process only needs industrial hydrochloric acid and calcium aluminate powder for water
Clay-brine process employing activated clay, NaCl, HCl, and HF as raw materials is the primarily advanced technology to synthesize cryolite in the present industrial grade. However, plenty of byproducts of fluorine-containing waste HCl at the
