摘要
针对溶媒法生产羧甲基纤维素而产生的高盐、高COD有机废水,利用蒸发浓缩结晶技术与络合萃取结合的方法,研究了其废水处理的工艺,不仅有效提取了废水中的氯化钠及氯乙酸产品,做到变废为宝,同时也达到了废水回用零排放的目的。
The wastewater comes from the production process of carboxymethyl cellulose solven method. The wastewater belongs to high salt and high COD organic wastewater. Two aspects to study the process of its wastewater treatment. The first one is evaporation-concentration,and the other is extraction. And could get sodium chloride products and chloroacetic acid products. Treatment water is also recycled to product process.
出处
《应用化工》
CAS
CSCD
北大核心
2016年第9期1682-1685,1690,共5页
Applied Chemical Industry
基金
2014国家海洋公益性行业科研专项(201405008)
天津市自然基金项目(13JCYB18600)
天津市科技兴海项目(KJXH2012-4)
关键词
氯化钠
氯乙酸
羧甲基纤维素生产废水
络合萃取
sodium chloride
chloroacetic acid
CMC-Na production wastewater
complexation extraction
