超滤

X-Flow 的中空纤维超滤 (UF) 膜具有 150 至 20万道尔顿 (kDa) 的 MWCO(截留分子量),可去除所有精细淤泥、浑浊度、细菌和病毒,以及耐氯有机物(如隐孢子虫和贾第虫)。

水处理
超滤膜的生产率高,而压差却能保持低值。X-Flow 的超滤 (UF) 膜技术用于生产饮用水和工艺用水,并用于大型海水淡化反渗透 (SWRO) 设备的预处理步骤。
经验证,X-Flow 超滤膜技术是一种优秀的大型处理方法,用于地表水、海水处理设备流出水和悬浮固体含量为 100 至 200 mg/L 的地下水项目。

想要了解我们的超滤产品吗?请查看我们的过滤产品组合。

HOW IT WORKS

Ultrafiltration (UF) is a membrane filtration process similar to Reverse Osmosis, using hydrostatic pressure to force water through a semi-permeable membrane element. In this method we use Pentair X-Flow hollow fibers.

UF is a barrier to suspended solids, bacteria, viruses, endotoxins, and other pathogens to produce water with very high purity and low SDI.

A pressure difference is the driving force for the membrane. The pressure difference allows the water to flow through the pores of the membrane. All matter larger than the pores is retained on the surface of the membrane. This process is called pore size exclusion. The membrane is called semi-permeability because it allows water to pass while it retains other substances. The pore size of the membrane determines the size of the particles that are being removed. If the pores are micrometer sized the membrane is called a microfiltration membrane, if the pores are smaller than a tenth of a micrometer the membrane us called an ultrafiltration membrane. 


Micro- and Ultrafiltration membrane elements are capable of removing suspended solids, bacteria and larger micro organisms, such as cryptosporidium and giardia. Additionally the ultrafiltration pore size is small enough to reliably remove smaller matter such as viruses, macro molecules and colloidal matter. Dissolved matter, such as e.g. beneficial minerals are not being retained by the membrane elements. 



WHAT IT REMOVES

  • Micro organisms
  • Viruses
  • Silica
  • Silt
  • Turbidity
  • Bacteria

BENEFITS

  • Simple process and compact plant
  • Good and constant quality of the treated water concerning microbial and particle removal
  • Friendly for the environment
  • Very low consumption of chemicals



drinking water from surface water

Meeting the global drinking water quality standards requires a wide local variety of treatment methods, due to different feedwater sources. Pentair delivers solutions for every drinking water application.

Ultrafiltration is the perfect method for producing drinking water from surface water.
 

Ground water from a variety of sources, such as ground water, surface water, lake or river water or seawater can be sources for potable water treatment.

In some cases, bore holes for collection of ground water that were constructed many decades ago are constructed of bricks. When exposed to ground movement, cracks can develop which allows surface water to enter the bore holes.

The traditionally clean ground water can then become contaminated with microorganisms. This is referred to as “ground water under the influence of surface water”.

The X-Flow Xiga or Aquaflex membrane solutions can be used to filter the ground water to remove contaminants and guarantee complete removal of bacteria and viruses. Surface water contains microbiology as well as suspended solids. Sometimes dissolved organics are present that cause color in the surface water. X-Flow Xiga or Aquaflex membranes solutions can provide a reliable treatment system that eliminates the need for multiple treatment steps.

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