摘要
以某大型制浆造纸厂废水处理工程为例,介绍了水解酸化—好氧生物处理联合Fenton氧化深度处理工艺在造纸和制浆中段废水处理中的应用。厂内造纸废水量为0.77万～2.91万m3/d,COD为2 150～4 430mg/L,SS为1 316～2 414mg/L,经生化处理后,出水COD和SS平均分别为309mg/L和53mg/L;制浆废水量为0.84万～3.68万m3/d,COD为1 720～4 360mg/L,SS为1 184～1 994mg/L,生化处理出水COD和SS平均分别为370mg/L和56mg/L。两种废水的生化处理出水经Fenton氧化和絮凝沉淀处理后,出水COD为67～98mg/L,SS为21～29mg/L,可达《制浆造纸工业水污染物排放标准》(GB 3544—2008)排放要求。废水处理成本为2.01元/m3,具有良好的经济效益和环境效益。
The application of hydrolytic acidification- aerobic biological treatment - fenton process to treat the regenerated papermaking and wood pulping middlestage wastewater of a largescale papermaking enterprise was introduced. The results showed that when the influent flux, COD and SS of the regenerated papermaking wastewater were 0. 77× 10^4 -2. 91× 104 m3/d, 2 150-4 430 mg/L and 1 316- 2 414 mg/L respectively, the average effluent COD and SS were 309 mg/L and 53 mg/L respectively through the biochemical treatment. When the influent flux, COD and SS were 0. 84 × 10^4 -3.68×104 m3/d, 1 720-4 360 mg/L and 1 184-1 994 mg/L respectively, the average COD and SS in the effluent from bio - treatment were 370 mg/L and 56 mg/L respectively. When the mixed wastewater of these two biochemical effluents was treated by fenton oxidation and flocculation sedimentation process, the effluent COD and SS decreased to 67-98 mg/L and 21-29 mg/L respectively, which met the Discharge standard of water pollutants for pulp and paper industry （GB 3544-2008）. The treatment
出处
《给水排水》
CSCD
北大核心
2012年第7期47-51,共5页
Water & Wastewater Engineering
基金
国家水体污染控制与治理科技重大专项(2012ZX07203004)
关键词
造纸废水
水解酸化
好氧
FENTON氧化
Pulping wastewater
Hydrolytic addification
Aerobic
Femon oxidation
