东丽RO膜TML20D-400 8英寸低压化学耐久性反渗透膜元件 是采用最新的材料及生产技术的一款高脱盐率、高产水量、耐化学清洗的膜元 件。
有效膜面积为400平方英尺，给水流道34mil， 适合于含盐量约10000ppm以下的给水， 有较严格的预处理、但给水中仍含有有机物等污染物的领域。由于其膜片呈电中性，这大大 减少了细菌、微生物在膜表面的吸附；最宽的34mil给水流道，使其不仅有较强的抗污染性， 更具有化学清洗后的有效恢复性。
TML20D-400具有最宽泛的清洗pH值范围（pH1~13）， 可以快速有效的解决膜元件的污染问题；反渗透膜片能够承受一定范围内，由于操作失误等 原因造成的轻微余氯泄露事故，提高了系统的安全性。
TML20D-400反渗透膜元件性能规范 ：
| 基本参数 | |||
| 标准脱盐率： | 99.8% | 产水量： | 10500GPD/39.7m³/d |
| 有效膜面积： |
400ft² （37m²） |
进水流道宽度： |
34mil |
| 测试标准 | |||
| 操作压力： |
225psi(1.55MPa) |
测试液温度： |
77 ﾟＦ (25 ℃) |
|
测试液浓度： |
2000 mg/L (as NaCl) |
测试液pH： | 7 |
| 测试结果 | |||
|
单只膜元件水回收率： |
15% |
最小透过水量： |
8,400gpd (31.8m³/d) |
| 单支膜元件最低脱盐率： | 99.65％ |
|
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TML20D-400反渗透膜使用极限条件：
最高操作压力································································600psi (4.1MPa)
最高进水流·································································70gpm(382m3/d)
最高进水温度····································································113 ﾟＦ(45 ℃)
最大进水SDI········································································5
进水自由氯浓度········································································＜0.1mg/L
连续运行时进水pH 范围·································································2－11
化学清洗时进水pH 范围·································································1－13
单个膜元件最大压力损失·············································15psi (0.1 MPa)
单个膜组件最大压力损失············································50psi (0.34MPa)
东丽TML20D-400反渗透膜元件尺寸（单位为：英寸（毫米））：
