摘要
测定了ＮＴＲ—７２５０膜的脱盐性能。结果表明，该膜水通量约为ＣＡ膜的５倍；脱盐率主要受阴离子控制，并随电荷数递增；水中结垢成分被优先除去，硬度和ＨＣＯ除去率分别大于９７％、８１％和７６％；该膜抗氧化能力与ＣＡ膜相当，而适用ｐＨ范围更宽，并且可在较高水温下长期使用。
The salt rejection performances of membrane NTR-7250 were studied.The resultsindicated that the water flux of NTR--7250 was aboul 5 times that of RO membrane CA.Thesalt rejections of NTR-7250 were mainly affected by anions and increased with the valence. Thecomposions of scale were rejected precedently,The rejections of SO,hardness,and HCOwere above 97, 81 and 76% respectively.It has the same oxidation resistance as CA,but it issuitable to wider pH than CA. NTR-7250 can work effectively for a long term at fairly hightemperature of water.
出处
《水处理技术》
CAS
CSCD
北大核心
1994年第2期72-77,共6页
Technology of Water Treatment
