树脂吸附法处理3,6-二氯水杨酸生产废水  

ADSORPTION TREATMENT OF WASTEWATER FROM 3,6-DICHLOROSALICYLIC ACID PRODUCTION WITH POLYMERIC RESIN

作　　者：孙越[1] 谢敷[1] 陈金龙[2] 李爱民[2] 张全兴[2] 

机构地区：[1]东南大学土木工程学院,南京210096 [2]污染控制与资源化研究国家重点实验室南京大学,南京210093

出　　处：《离子交换与吸附》2007年第6期506-511,共6页Ion Exchange and Adsorption

基　　金：污染控制与资源化研究国家重点实验室开放课题(PCRRF07012)

摘　　要：研究了树脂吸附法处理3,6-二氯水杨酸生产废水的工艺过程。结果表明,NDA-77吸附树脂对该废水具有良好的吸附-脱附效果。经树脂吸附处理,废水中主要有机污染物2,5-二氯苯酚和3,6-二氯水杨酸均得到去除,总有机碳(TOC)由210mg/L降为20mg/L以下,吸附饱和的树脂可采用稀碱液实现完全再生。经吸附处理去除有机物后,废水中含有20%的KCl,可进入工厂现有的KCl隔膜电解装置,用于KOH的生产。In this paper, the macroporous polymeric resin NDA-77 was employed to treat 3,6-dichlorosalicylic acid production wastewater and showed good properties of adsorption and desorption. After adsorption process, 2,5-dichlorophenol and 3,6-dichlorosalicylic acid, the two main organic pollutants in the wastewater, were removed completely. The concentration of TOC is about 210 mg/L in the wastewater, but less than 20mg/L in the treated effluent. Those effluent still achieving remaining about 20% KCl electrolyte and is recommended to apply to diaphragm electrolysis. Meanwhile, dilute sodium hydroxide could be used as a solvent for complete regeneration of the spent adsorbent.

关 键 词：吸附树脂 2 5-二氯苯酚 3 6-二氯水杨酸 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]