Access to clean water is becoming scarce, and the world is currently dealing with challenges related to the privatization of public water distribution and the increasing demand for bottled mineral water. Another significant concern involves the accumulation of organic forest waste. It is crucial to develop a sustainable solution that not only reduces reliance on landfill space but also generates revenue to support the collection and maintenance of forest lands. Forest biomass, including pine needles, almond tree wood, bark of the cupressus tree, grape cane wood, underwent a process of carbonization and chemical activation using NaOH and H2SO4 for water pollution treatment. The results highlight the potential of forest biomass, especially pine needles, as a sustainable and efficient adsorbent for water treatment. A hybrid reactor, which combines the adsorption activity of acidic activated carbon based on pine needle biochar with the catalytic activity of TiO2 activated by UV light, along with the antimicrobial effect of UV radiation, has been successfully prepared. This hybrid reactor demonstrated a higher adsorption effect compared to the one prepared with pine needle activated carbon using H2SO4, and a higher water permeability compared to the one prepared with TiO2. Promising results were obtained after comparing treated water samples based on parameters such as Na+, K+, Ca2+, Mg2+, pH, EC, TDS, TOC, IC, and BOD.