Fenton试剂预处理亚麻生产废水

采用Fenton试剂预处理亚麻生产废水。探讨了pH值、反应时间、H2O2投加量、FeSO4.7H2O投加量对去除CODCr的影响。试验结果表明:在pH值为4.5,反应时间为60 min,H2O2投加量为5 mL/L,FeSO4.7H2O投加量为1 500 mg/L,H2O2的投加为分批次的连续投加方式时,CODCr去除率为45%,m(BOD5)/m(CODCr)由0.21提高到0.53,出水中检测不到SS的存在,为后续生化处理创造了有利条件。

Pretreatment of wastewater from flax production by Fenton reagent

Fenton reagent was used to pretreat wastewater from flax production.The influences of pH value,reaction time,H2O2 dosage and FeSO4.7H2O dosage on CODCr removal were investigated.The results of the test showed that: under the condition that,the pH value was 4.5,the reaction time was 60 min,the dosage of H2O2 and FeSO4.7H2O were 5 mL / L and 1 500 mg / L respectively,the H2O2 was added to the reactor batch by batch continuously,the removal rate of CODCr reached 45%,the m(BOD5) / m(CODCr) of the wastewater increased from 0.21 to 0.53,and no SS was detected in the effluent water,which provided favorable conditions for the subsequent biochemical treatment.