日本东丽膜TM720D-400是8英寸、宽流道、低压化学耐久性反渗透膜元件，日本东丽TM720D-400价格，日本东丽TM720D-400优惠促销活动开始了。

       日本东丽膜TM720D-400是采用***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。适合含盐量10000ppm 以下的苦咸水淡化，以及微污染地表水的脱盐、冷却循环排污水的回用等各种应用领域。TM720D-400是目前拥有***高产水量，***高脱盐率的苦咸水膜元件；具有***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。

日本东丽膜TM720D-400性能规范：

日本东丽膜TM720D-400测试条件：

操作压力·············································································225 psi (1.55MPa)
测试液温度·········································································77℉(25℃)
测试液浓度·········································································2000 mg/L (as NaCl)
单只膜元件水回收率························································15％
测试液·················································································· pH 7
单支膜元件***低脱盐率···················································· 99.65％
***小透过水量····································································· 8,900gpd (33.6m3/d)

日本东丽膜TM720D-400使用极限条件：
***高操作压力 ········································································ 600psi (4.1MPa)
***高进水流量 ········································································ 70gpm(382m3/d)
***高进水温度 ········································································ 113℉(45℃)
***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***大压力损失 ··················································· 15psi (0.10MPa)
单个膜组件***大压力损失 ··················································· 50psi (0.34MPa)
　　日本东丽膜TM720D-400清洗要求
　　用户首先要确认所用东丽极超低压反渗透膜元件的材料来咨询和选择消毒杀菌剂，避免造成反渗透膜损伤。
　　用户可根据膜的组数及系统容量确定清洗液、消毒液的工作体积，确定清洗液、消毒液商品用量。
　　根据对反渗透膜系统的调查、诊断，确定反渗透膜的污染类型，选取相应的药剂进行清洗或杀菌。
　　清洗液、消毒杀菌液进入反渗透膜管前一定先要经过保安过滤器。
　　***佳清洗温度25-35℃，如在低温条件下使用，需适当延长清洗时间。

　　当日本东丽膜TM720D-400污堵或结垢的可能性较少时，浓水的流速可以适当降低。***小的浓水流量和产水流量的比值因不同的进水水质而不同，当组件的压差增加到初始值的1.5倍时，元件需要进行化学清洗。化学清洗以及杀菌、消毒措施必须参照东丽技术手册。