树脂吸附-NaClO氧化法净化AKD废水的研究
Research on Purification of AKD Wastewater by Resin Adsorption-NaClO Oxidation Method
李宁 1孔莎莎 1苏永胜 1韩福彬 1潘红梅 1邢亚琳1
作者信息
- 1. 丰益高分子材料 (连云港) 有限公司,江苏 连云港 222066
- 折叠
摘要
针对多效蒸发方式处理烷基烯酮二聚体(AKD)副产废水带来的固体废物产生量大、不能回收利用、能耗高、处理成本高的问题,研究了吸附法与化学氧化法组合工艺净化AKD废水的技术.结果表明:第一步,AKD废水经过LS-200 树脂吸附处理后,总NH4+浓度低于4 mg/L,废水处理量为 500 BV(床容积);第二步,化学氧化采用单因素优化的方式,确定最佳反应条件,氧化剂为NaClO,用量为 0.5%,pH=3.0,反应温度为 60℃,反应时间为 0.5 h,废水中总有机碳(TOC)低于 10 mg/L.处理后AKD废水指标符合盐水电解的要求,有效提高能源利用效率.
Abstract
In view of the problems of large amount of solid waste,non-recyclability,high energy consumption and high treatment cost caused by the multi-effect evaporation method to treat alkylene ketone dimer(AKD)by-product wastewater,the technology of purifying AKD wastewater by combining adsorption method and chemical oxidation method was studied.The results show that after the AKD wastewater is adsorbed by LS-200 resin in the first step,the total NH4+(total ammonium)is less than 4 mg/L,and the wastewater treatment capacity is 500 BV(bed volume).The second step of chemical oxidation uses single factor optimization to determine the optimal reaction conditions.The oxidant is NaClO,the dosage is 0.5%,pH=3.0,the reaction temperature is 60 °C,the reaction time is 0.5 h,the TOC(total organic carbon)in wastewater is less than 10 mg/L.The treated AKD wastewater index meets the requirements of brine electrolysis,effectively improving energy utilization efficiency and realizing circular economy.
关键词
AKD废水/树脂吸附/总NH4+/化学氧化/TOCKey words
AKD wastewater/resin adsorption/total NH4+/chemical oxidation/TOC引用本文复制引用
出版年
2024
NETL
NSTL
万方数据