Laboratory Filtration Equipment

Laboratory filtration apparatus forms an important segment of the laboratpry equipment sector. No doubt it does multimillion dollar worth business world wide and the lab filtration equipment market is well set to reach $983 million by the year 2010. Filtration equipment are essential devices which uses filter to mechanically segregate mixtures. Besides filtering, thickening and clarifying mixture of various materials is also performed by the lab filtration equipment. Laboratory filtration equipment encompasses a broad range of products depending on the filtration mechanisms. It is actually the different mechanisms that makes filters work. effectively in removing contaminants of various type and varieties. A broad range of laboratory filtration equipments used in different kinds of laboratory applications is discussed here.

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Types of Filtration

Market Drivers for Laboratory Filtration Equipment

• A major growth driver in the coming years would be the biotech industry.
• R & D activities in the medical sector for developing new treatments for fatal diseases.
• Heightened use of microfiltration membranes in laboratory filtration applications.
• Enhanced investment flow in research and development activities cutting across various sectors.

Market Drivers for Filtration Mechanism

• Mechanical separation : Mechanical separation also known as interception is the most simple filtration mechanism. The principle is that a particle in movement is stopped when faced with a passageway or hole which is smaller as compared to the particle size.
• Gravity separation : Gravity separation is perfect medium for both solid/liquid separation and liquid/liquid separation. The mechanism uses the concept of density difference of the substances being separated. Examples of this type are the gravity filtration equipment.
• Vacuum filtration : Vacuum filtration is a mechanism that is basically used to collect a desired solid. Compared to gravity filtration vacuum filtration is faster.

Laboratory Filtration Selection Guide
Procuring laboratory filtration equipment can be a complex task. The decision is often plagued by a variety of factors. Some of these are with regard to the nature of task to be performed, quality or price,to go in for single vendor or multiple ones etc. Given here is a a simple guide to make your task simpler:

• First it is important to ascertain the particle size which needs to be retained or filtered. Membranes have the ability to hold back particles that are equal to, and larger than their denominated pore size.
• Then an assessment needs to be done for the chemical compatibility of the membrane filter. This is done with regard to items to be filtered like liquid or gas. A careful thought is to be given to the chemical resistance properties of the parts of the filter that will be in touch with the filtrate.
• Another vital point to be considered is the colour and surface pattern of the membrane depending on the process to be performed.
• Lastly there is also a need to consider things like:
  • - Hydrophilic or hydrophobic membranes
  • - Temperature
  • - Flow rate
  • - Throughput
  • - Sterilization needs

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