서브 나노여과의 기공에 DNA 유전형질을 사용해 역삼투 세라믹 멤브레인 방식에 적용하는 방법이 만들어졌다. 기술의 개발자 Cerahelix는 관습적인 방법과 마주해 예전 방식의 좋지 못했던 재생력을 극복했다.

미국 올란도의 AMTA 및 AWWA에서 발표된 논문의 주요 필자인 Tyler J Kirkman은 Cerahelix의 과정을 설명하고, “등록되거나 등록되지 않은 DNA를 조작하는 것은 나노여과 멤브레인에서 생산에 중요한 기공 구조”라고 밝혔다.

 

 

 

A novel method for creating ceramic reverse osmosis membranes with sub-nanometre pores by using the genetic material, DNA, as a template former, overcomes the poor reproducibility encountered in conventional methods according to the developer of the technology, Cerahelix.

 

In a paper presented at this week's AMTA and AWWA conference in Orlando, USA, lead author, Tyler J Kirkman, explained Cerahelix's process as "Manipulating DNA as a generic - not genetic - material to produce a pore structure that is unique in nanoflitration membranes."

 

The process exploits DNA's property of aligning in a silica or titanium oxide sol gel to form columns. Once the sol gel is fired to form a ceramic membrane on an alumina support the DNA is burnt off to leave pores with diameters of less than 1 nm.

 

The combination of sub-nanometer pores in a hydrophilic material means that molecules can be separated by size, chemical properties and charge-charge interaction." said Kirkman.

 

He claimed that the membrane had an "inherent resistance to fouling from organics."

 

Adapting the process from silica to titanium oxide to increase chemical and hydrothermal resistance required modification to overcome cracking which increased the pore size. Tests on the titanium product "imply" that the technology could overcome the the high sulphate concentrations found in produced water waste.

 

[출처 = Desalination & Water Reuse / 2015년 3월 1일]