一级代理|山西SFP2880|Dow UF SFP2880

                                               陶氏超滤膜SFP系列说明

       SFP2880 超滤组件  SFP2880是陶氏化学新型的超滤膜组件，使用偏聚氟乙烯材质，采用外压式过滤方式，采用主要特点有单支膜面积大，产水水量大，产水水质好，使用寿命长，运行费用低。表1列出了SFP2880的详细产品信息。

       由于实际运行过程中收到温度变化的影响，系 统的过滤通量为58LMH。超滤系统通过物理和化学清洗的方式维护系统的稳定运行。其中每40分钟进行一次物理清洗，主要步骤包括气擦洗、反冲洗、正冲洗；每10天使用酸、碱、氧化剂进行一次反学加强反洗，药剂在超滤中浸泡20分钟以达到对污染物的溶解洗出。化学离线清洗是不定期的一种清洗方式，在超滤污堵加重，物理和化学加强反洗都不能很好地使超滤的性能得到恢复的情况下，此时就必须通过高化学浓度高清洗液温度的化学离线清洗方式来恢复性能。在初期投运的4个月内，超滤系统运行稳定，没有进行化学离线清洗，定期的物理和化学加强反洗清洗就可以使过滤性能得到很好的的恢复。

Abstract：DOWTM SFP2880 Ultrafiltration (UF) product has the characters of high active area, high permeate flow, excellent permeate quality, long life time and low operation cost. The paper introduces the newly SFP2880 system performance in the water expansion project of Datang Tuoketuo power plant. The system mainly treats cooling tower blow down and can produce 7,500 m3 permeate every day.  SFP2880 brings 35% UF modules saving as well as 30% piping, footprint and chemical savings.  From the first months operation, Transmembrane pressure (TMP) and permeability are stable together with lower 0.1 NTU permeate turbidity 90% of time. Due to UF protection, the first stage reverse osmosis (RO) fouling decreases while better rejection and comparable flow are achieved than design.   Keywords: UF; RO; TMP; Cooling tower blow dow 

     关键词：超滤；反渗透；跨膜压差；循环冷却排污水。

     超滤是一种以膜两侧压力为动力的膜分离技术，可用于去除溶液(比如水)中的颗粒物。UF膜特有的0.01-0.1µm孔径，能有效地去除细菌、大多数病毒、胶体以及淤泥。膜孔径越小，去除率越高。大部分用来制造超滤的材质是疏水性聚合材质，比如聚砜(PS)、聚醚砜(PES)、聚丙烯(PP)或者聚偏氟乙烯(PVDF)。使用压力通常为0.01-0.03MPa，筛分孔径从0.005-0.1µm，截留分子量为1000-500000道尔顿左右。

Abstract：DOWTM SFP2880 Ultrafiltration (UF) product has the characters of high active area, high permeate flow, excellent permeate quality, long life time and low operation cost. The paper introduces the newly SFP2880 system performance in the water expansion project of Datang Tuoketuo power plant. The system mainly treats cooling tower blow down and can produce 7,500 m3 permeate every day.  SFP2880 brings 35% UF modules saving as well as 30% piping, footprint and chemical savings.  From the first months operation, Transmembrane pressure (TMP) and permeability are stable together with lower 0.1 NTU permeate turbidity 90% of time. Due to UF protection, the first stage reverse osmosis (RO) fouling decreases while better rejection and comparable flow are achieved than design.   Keywords: UF; RO; TMP; Cooling tower blow dow