As a representative of "fine treatment" in the "adsorption type water treatment agents", the application of wooden activated carbon focuses on "low to medium concentration pollution purification, low residue/high purity requirements scenarios", with four core scenarios:

1. Pre treatment of drinking water: Removing odors and trace organic matter
   • Regarding the "earthy and chlorine odor" of tap water or well water: the active groups on the surface of wooden activated carbon can quickly adsorb pollutants from waterGeosmin, 2-methylisoborneol (MIB) The main sources of unpleasant odors in drinking water are chlorine (Cl ₂) and residual chlorine (Cl ₂). The adsorption efficiency can reach over 90%, and due to its low ash content, it does not affect the taste of the drinking water outlet. It is commonly used in rural safe drinking water projects and pre-treatment of small water plants (pre adsorption filter).
   • Regarding the "trace pollutants" in drinking water, such as pesticide residues (organophosphates, organochlorine pesticides) and endocrine disruptors (phthalates), the mesoporous structure can accurately adsorb these small to medium molecule pollutants, reducing their concentration below the national standard limit (such as pesticide residues<0.001mg/L), which is more suitable for "drinking water grade" purification needs than coal based activated carbon.
2. Food/pharmaceutical industry wastewater treatment: meets the requirements of "low residue, touchable"
   • Food processing wastewater (such as juice and beer factory wastewater): Sugar, organic acids, and pigments (such as caramel pigments) need to be removed from the wastewater. The pores and surface active groups of wooden activated carbon can efficiently adsorb these substances, and due to its low ash content and no secondary pollution, the treated wastewater can be further processed and reused (such as workshop cleaning) to avoid impurities introduced by coal based activated carbon affecting the food safety production environment.
   • Pharmaceutical intermediate wastewater: The wastewater contains trace amounts of toxic organic compounds (such as benzene derivatives and antibiotic residues). The dual effect of "physical+chemical adsorption" of wooden activated carbon can reduce the residual amount of these pollutants to below 0.1mg/L, meeting the "strict environmental protection discharge standards" of the pharmaceutical industry, while avoiding the residue of chemical activators (mostly using physical activation), which meets the "low toxicity and safety" treatment requirements of the pharmaceutical industry.
3. Livestock/Aquaculture Wastewater Treatment: Deodorization and Water Quality Improvement
   • Livestock and poultry breeding wastewater (such as pig and chicken farm wastewater): It is necessary to remove ammonia nitrogen (NH3-- N), hydrogen sulfide (H2S), and volatile organic compounds (VOCs) (the main source of odor) from the wastewater. The amino and carboxyl groups on the surface of wooden activated carbon can undergo ion exchange with ammonia nitrogen, and the adsorption rate of hydrogen sulfide can reach over 85%, effectively reducing the odor of wastewater and improving the breeding environment;
   • Aquaculture water bodies (such as fish ponds and shrimp ponds): It is necessary to control the nitrite (NO ₂⁻) and organic matter in the water (to avoid excessive algal growth). Wooden activated carbon can slowly adsorb these substances, and due to its low mechanical strength requirements (no need for frequent backwashing) and lower price than coconut shell activated carbon, it is suitable for "regular water quality maintenance" in small-scale aquaculture scenarios.
4. Deep decolorization of textile/printing and dyeing wastewater: suitable for small molecule dyes
   • For "small molecule water-soluble dyes" (such as acid dyes and direct dyes), the adsorption efficiency of the mesoporous structure of wooden activated carbon is superior to that of coal based activated carbon (with an adsorption rate of over 95% for acid red G dye), and due to the ability of surface active groups to form hydrogen bonds with dye molecules, the adsorption stability is stronger. It is commonly used for deep decolorization of "secondary treatment" of printing and dyeing wastewater (such as reducing the effluent color from 50 times to below 10 times, meeting emission standards), especially suitable for small and medium-sized printing and dyeing factories (with small treatment scale, high decolorization requirements but limited budget).