Abstract:
FeSO4 regarded as coagulating agent is used for pretreating aquatic product processing wastewater containing sodium hypochlorite with high concentration． The results show that BODy／COD can be increased from 0．13 to 0-40 under the condition that pH is ranged from 8．5 to 9．0 and the dosage of FeSO4 is 3 g／L． Simultan eously sodium hypochlorite has less efect on the biodegradability which Can be enhanced effectively under this condition．After the pretreatment of coagulation．the removal eficiency of COD iS from 26．40％ to 28．64％.And the fu11．scale experiment shows that using FeSO4 as coagulant Can get better treatment efect．
Key words:
aquatic product processing wastewater,
sodium hypochlorite,
coagulation,
biodegradability
摘要：
用FeSO4作混凝剂对含高浓度次氯酸钠的水产品加工废水进行预处理试验研究。试验结果表明,当pH控制在8.5～9.0之间,FeSO4投加质量浓度为3g/L时,BOD5/COD由0.13提高到0.40,次氯酸钠对废水的可生化性影响最小,废水的可生化性得以提高;经过混凝预处理后,废水的COD去除率约在26.40%-28.64%。生产试验证明,用FeSO4作混凝剂对废水进行预处理,可保证其后续生化处理效果。
关键词:
水产品加工废水,
次氯酸钠,
混凝,
可生化性
CLC Number:
Miao Qun, Xing Meiyan, Liu Zhiqiang, An Wenchao School of Environment and Municipal Engineering, Qingdao Technological University, Qingdao 660, China;. School of Environment Science and Engineering, Tongji University, Shanghai 0009, China). Study On the pretreatment of aquatic product wastewater containing sodium hypochlorite[J]. INDUSTRIAL WATER TREATMENT, 2005, 25(3): 29-31.
苗群, 邢美燕, 刘志强, 安文超. 含次氯酸钠水产品加工废水预处理的试验研究[J]. 工业水处理, 2005, 25(3): 29-31.