CAJ | 학술논문

通过采用管式微滤膜（TMF）对膜浓缩液进行预处理，考察了最适合的软化药剂种类、投加量和TMF对CODCr、总硬度的去除效果，研究了膜系统的运行特性。结果表明，NaOH适宜作为软化药剂，且pH应控制在11.5左右；TMF对纳滤膜后浓缩液总硬度的去除效果较好，钙镁离子的去除率都能达到95%以上，降低后浓缩液处理膜结垢风险；长时间使用TMF，会使膜通量下降，化学清洗能很好地恢复膜通量。
통과채용관식미려막（TMF）대막농축액진행예처리，고찰료최괄합적연화약제충류、투가량화TMF대CODCr、총경도적거제효과，연구료막계통적운행특성。결과표명，NaOH괄의작위연화약제，차pH응공제재11.5좌우；TMF대납려막후농축액총경도적거제효과교호，개미리자적거제솔도능체도95%이상，강저후농축액처리막결구풍험；장시간사용TMF，회사막통량하강，화학청세능흔호지회복막통량。
By using Microfiltration(TMF)membrane pretreatment concentrate investigated the most suitable types of softening agents, the dosage and the TMF for CODCr, total hardness removal, studied the operating characteristics of the membrane system. The results showed that, NaOH suitable as a softening agent, and the pH should be controlled at about 11.5; TMF after nanofiltration concentrate better total hardness removal, removal of calcium and magnesium ions can reach more than 95%after reducing concentrate treatment membrane fouling risk;prolonged use TMF, will decrease membrane flux, chemical cleaning can be a good resume flux.