THE SCIENCE

THE PROCESS

The rapid heating and cooling during the carbonisation, or Pyrolysis, process, and the resulting enlargement of the hardwood’s millions of internal pores, is what enables KURO-Bō Activated Charcoal to adsorb certain contaminants, such as heavy metals:

The rapid heating and cooling during the carbonisation, or Pyrolysis, process, and the resulting enlargement of the hardwood’s millions of internal pores, is what enables KURO-Bō Activated Charcoal to adsorb (note, adsorb not absorb) toxins:

At a microscopic level, it attracts the positively-charged toxins and metals (Mercury and Lead, for example) which bind fast to the vast surface area, thereby removing the harmful elements from the water
Adsorption is what makes ordinary, municipal-treated tap water taste clean, sweet and delicious
A single gram of activated charcoal can have a surface area of up to 1500m2 – essentially 6 times the surface area of a tennis court – which is why it can so efficiently adsorb as many toxins as it does!
Each KURO-Bō Stick or pack of Kōins reaches a saturation point after about 3-6 months of daily use, when the pore surface area is effectively covered with impurities and a fresh piece of charcoal is required.

Activated carbon and chlorine

Activated carbon can remove and destroy residual disinfectants (chlorine and chloramine) through a catalytic reduction reaction. This is a chemical reaction that involves a transfer of electrons from the activated carbon surface to the residual disinfectant. In other words, activated carbon acts as a reducing agent.

Its removal of chlorine reduces the chlorine to a non-oxidative chloride ion. Chloramine removal by activated carbon is a much slower reaction. The predominant species of chloramine in city water supplies (pH about 7 to 8) is monochloramine. The reaction with activated carbon and monochloramine also renders a non-oxidative chloride ion.