Polysilicic acid ferric and zinc sulfate containing boron (PSBFZ) flocculants were prepared through reaction of sodium silicate, ferric trichloride, zinc sulfate and sodium tetraborate. A new type of magnetic flocculant PSBFZ-Fe₃O₄ was prepared through a simple method of solid state reaction at room temperature. The as-prepared PSBFZ and magnetic PSBFZ-Fe₃O₄ were used in treating water-based ink wastewater. The influence parameters (such as dosage, time, pH and temperature) on the removal rate of decolorization, turbidity and chemical oxygen demand (COD) were investigated. The results showed the products were suitable for neutral and basic water. When the dosage of PSBFZ-Fe₃O₄ was 0.3 g/L, the turbidity removal rate and the decolorization rate could reach 98.0 % and 98.5 % at room temperature, respectively. Through recycling by a magnet, the magnetic PSBFZ-Fe₃O₄ flocculants residues could be easily separated from the wastewater which makes the reusing of magnetic flocculants become possible.

通过硅酸钠，三氯化铁，硫酸锌和四硼酸钠的反应制备了含硼聚硅酸铁和硫酸锌絮凝剂。通过一种简单的室温固相反应方法制备了新型的磁性絮凝剂PSBFZ-Fe ₃ O ₄。所制备的PSBFZ和磁性PSBFZ-Fe ₃ O ₄用于处理水性油墨废水。研究了脱色率，浊度和化学需氧量（COD）的影响参数（如剂量，时间，pH和温度）。结果表明该产品适用于中性和碱性水。何时加入PSBFZ-Fe ₃ O ₄室温下，其浊度去除率为0.3g / L，脱色率可达到98.0％和98.5％。通过磁体回收，可以很容易地从废水中分离出磁性PSBFZ-Fe ₃ O ₄絮凝剂残留物，这使得磁性絮凝剂的再利用成为可能。