全白土催化剂生产旋液废水处理

针对某催化剂厂全白土车间旋液排放废水中悬浮物含量高的特点,采用分级沉降技术有效分离旋液废水中所含的白土催化剂,催化剂的分离率不低于80%;对分级沉降后的废水利用聚合氯化铝+助剂在废水温度为40～55℃、沉降时间为10min下进行处理,在聚合氯化铝最佳用量为80.0mg/L、助剂最佳用量为6.0mg/L时,悬浮物的平均质量浓度由27120mg/L降到20.0mg/L以下,废水中悬浮物去除率高于99.50%;浊度由1020FTU降到10.0FTU以下。

Treatment of wastewater from hydrocyclone during carclazyte catalyst production

According to the characteristic of high suspended substance concentration of wastewater from hydrocyclone in carclazyte workshop of a catalyst production plant, the technology of classification sedimentation was applied to reclaim the carclazyte catalyst and the recovery ratio was more than 80%. The wastewater after the classification sedimentation was treated by PAC added with coagulant aids under the condition that the wastewater temperature was 40 -55 ℃ and the sedimentation time was 10 min. With the optimal dosage of PAC and coagulant aids which were 80.0 mg/L and 6.0 mg/L respectively, the average mass concentration of suspended substance decreased from 27 120 mg/L to less than 20.0 mg/L, the removal rate was above 99.50%, moreover, the turbidity decreased from 1 020 FTU to less than 10.0 FTU.