Does natural activated carbon become bulky?

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Hello my friends

Some of our customers say: carbon filter can not transmit water flow
What is the problem?

Does natural activated carbon become bulky?

Regards

Mohammad

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8 Answers

  1. Agreeing with all Experts, wish to add a few guidance points, further to Ahmed Aakash.

    ACF is not a Filtering mechanism, but a treatment one . As the water flow is maintained through the pores of AC particles, the property in AC is utilised to adsorb contaminant gases, vapours Etc.

    In this process there is evrry likelihood of the AC Membranes getting clogged and resticting the flow bit by bit. This increases the contact time of the water flow with AC paricles.

    This process is carried on, till a time when the flow gets very restricted.

    Before ths condition is reached due maintainsnce practices need to be inititiated.

    At best have the ACFs in twin basis, one in use and the other in maintainance/ standby function.

    Both back flush and for- blow throughs with air and jet of water is useful for doing insitu practices to clean up ACFs.

    After a certain time / flows in cubics, it is just and fair to renew the ACFs.

    Well wishes.

  2. Activated carbon filter (ACF) is not a filter. Activated carbon does not remove any insoluble. Activated carbon is adsorbent & it adsorb organic and inorganic matter. Pretreatment i.e. sedimentation and filtration is must prior to ACF. If pretreatment is not proper then activated carbon granule gets coated and flow through it may get reduced. Activated carbon is made from Coconut shell and never gets enlarge to to obstruct the flow,

  3. The media is most likely blinded by sediment/floc, algae or microbial growth or all of the above. Backwash regularly in addition to monitoring for the contaminants of interest and change out early to avoid breakthrough. If it is compressed type media as in some filter cartridges probably time for a change out.

  4. Activated carbon can be processed from natural materials like coconut shells or... you may probably mean something like this by natural.but as other members emphesized there is probably something wrong with the pretreatment of activated carbon filter because its main application is for absorbing organic matters (VOC,colors,TOC,...)not sediments,TSS and alike

  5. AC has to be selected for pore size, as there are vapor phase products and liquid phase products. As below in one answer occasionally when there is high SS a pre filter might be require. As pores become "plugged" from sediment or other the flow characteristics can change due to blinding. If the carbon was specified for a particular contaminant the "equilibrium isotherm" will help with determining frequency of back washing or carbon change out as the AC bed achieves bed saturation.

     

  6. As far as I know, there's no such thing as "natural" activated carbon. AC is manufactured. It does not "bulk up" and prevent water flow, but can be clogged by sediments. If AC is going to be used for organics removal, suspended solids and turbidity should be as low as possible. This means filtration for suspended solids removal before using the AC to remove organics.

  8. What is natural activated carbon?  Activated carbon is manufactured at high temperature  from coal or coconut shells or other carbon sources. Granular activated comes in many different types and granular sizes for the particular end use. It could possibly bulk up but it is backwashed to clean and separate it as in water treatment applications.