高铁酸钠-聚合双酸铝铁处理亚硫酸盐法制浆中段废水

Treatment of Sulfite Pulping Effluent by Sodium Ferrate-polymer Aluminum Ferric Sulfate Chloride

关键词:  高铁酸钠  聚合双酸铝铁  亚硫酸盐  制浆废水  废水处理

Key Words:sodium ferrate  polymer aluminum ferric sulfate chloride  sulfite  pulping wastewater  wastewater treatment

摘要:以工业废弃物为主要原料合成高铁酸钠（Na2FeO4）和聚合双酸铝铁（PAFCS），研究了Na2FeO4、PAFCS以及Na2FeO4-PAFCS联用处理亚硫酸盐法麦草制浆中段废水二沉池出水的效果。结果表明，以Na2FeO4-PAFCS联用处理亚硫酸盐法麦草制浆中段废水二沉池出水的处理效果最好，当Na2FeO4用量为1.0 g/L，PAFCS用量为1.0 g/L时，对二沉池出水CODCr、色度的去除率为82.4%、93.8%，处理后废水CODCr 48.2 mg/L、色度5倍，pH值7.46，满足排放要求。

Abstract:Sodium ferrate and polymer aluminum ferric sulfate chloride (PAFCS) were synthesized with industrial waste as the main raw material, and used for treatment of effluent from bleaching and washing stages of a sulfite pulping line, the effect of sodium ferrate and PAFCS dosages on the removal of the COD, chroma and pH value of the effluent was investigated. The experimental results indicated that when sodium ferrate dosage was 1.0 g/L, PAFCS dosage was 1.0 g/L, COD and chroma removal rates were 82.41% and 93.75%, CODCr was 48.2 mg/L, chroma was 5 times and pH value was 7.46.