had a marked and linear effect on the resulting adsorbent capacity, particularly in the case of wood furniture waste chars. The best activation temperature for the wood furniture chars was 8508C. Higher temperature yielded too high burn-off levels. After 10 h. of soaking time, the best-activated material was produced yielding a highly microporous solid with a high surface area (855 m2/g) and a high dye adsorption capacity with a mass loss of 63%. Such values compared well with similar work conducted using more conventional pyrolysis methods. For example, Dalai et al. [14] achieved surface areas of 300–650 m2/g, with mass loss of 40–90%, using a bench scale