No one doubts the adsorbing part at least intially. It's the what to do when it rapily becomes saturated part that's the problem..

I was a LevelIII surface water treament plant operator for many years.In fact Iran my home towns water treatment plant. A position that required me to obtain a degree in Water Chemistry which I completed in 1987. We used activated carbon filters in the water purification process and I am quite familiar with the basic principles of this material. Activated carbon can not be reactivated or 90 percent regenerated by a common household dryer and I would love to see a link to a credible scientific study that says otherwise. In fact in the terms reactivation and regeneration are used in basically an interchangable fashion within the carbon reactivation industry although there are some minor technical differences. For example reactivation which is usually done in a low oxygen atmosphere at a temp of 1400 degrees will almost always produce measurable changes in pore structure, due to an additional oxidative sculpturing of the carbon surface. While some regeneration canbe obtainedthrough the use of intense scaldingly hot steam to simply convert type II receptor sites to less active but functional type I receptor sites. In either case however we are talking about temps hell and gone above what a household dryer is capable of producing. Why on earth would any company suffer the enormous expense of sendingsaturated carbon back to one of the many companies out there in the business of reactivating it if they could obtain 80 to 90 percent regeneration by merely subjecting it to the heat level of a household dryer? They would have to be idiots. And they're not.