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Water purification of arsenic

The problem of water purification of arsenic has recently become very topical because of the fact that requirements of WHO (World Health Organization) to content of arsenic in drinking water were drastically changed. Before permissible level of content of arsenic in water was 50 microgram per liter and now this figure is reduced to 10 microgram per liter. In this regard an enormous number of water resources in the world became over this limit. The problem is particularly acute for the USA, countries of the Central Asian region and the Far East, Japan, China, India, Bangladesh, Mexico, Spain. In some cases excess of arsenic concentration in drinking waters is so high, that there are already clinical features of mass poisoning of population.

Common water purification systems of arsenic are not enough effective and don’t enable to carry out the purification of water in small and separate systems.

The material PANION 140 is developed specially for household and local water purification systems of 3- and 5-valence arsenic. In comparison with existing sorbents the material PANION® secures faster purification of water due to its fiber structure, that makes possible to use it thin filtering layers, that in turn reduces by far dimensions of the filter. It is easy to use especially in household water purification systems.

PANION 140 离子交换纤维

PANION 140离子交换纤维材料选择去除饮用水中的As(Ⅲ)、As(Ⅴ)和重金属离子;

PANION 140是一种含纳米羟基氧化铁的复合纤维材料。

应用:

  • -水质净化:吸附净化水中的As(Ⅲ)、As(Ⅴ)和重金属离子。

技术参数*:

官能团 纳米FeOOH,负载在纤维材料基体
基础材料 由聚丙烯腈纤维制备的含叔氨基阴离子交换纤维
羟基氧化铁含量,mmol/g 0,9 - 1,3
温度使用范围 0 – 60°C
pH使用范围 5 – 10
纺织形式
  • 短纤维:长度30-70mm;
  • 针刺无纺布:克重200-1000g/m2,幅宽最大1600mm,厚度2-10mm;
  • 可按要求生产加工成线、布、粒状、短纤维等纺织品。
再生性能 不可再生
耐腐蚀性 对浓酸溶液、碳酸钠溶液及所有有机溶剂具有耐腐蚀性,在高浓度酸性溶液中将降低纤维材料的吸附能力。
对砷离子的吸附性能,BV:吸附床层体积,初始浓度为100mg/m3

* -可按客户要求生产其它物理化学性能的离子交换纤维材料。

33
Arsenic
As
74,921
3d104s24p3

Arsenic is a chemical element with symbol As and atomic number 33.

Arsenic and all its compounds are especially potent poisons. Arsenic in small quantities is cancer-causing.