What type of adsorption mechanism is used for organic compound removal and biochar for removal of organic and inorganic pollutants from industrial wastewater?
Biochar showed a great potential to adsorb inorganic and organic pollutants involving variousmechanisms such as pore filling, electrostatic interactions,ion exchange, precipitation and surface sorption, which aredependent upon the physiochemical characteristics of bio-char such as biochar dosage, pyrolysis temperature and thepH of the treated matrix. Also, biochar decreases the bio-availability, toxicity and mobility of organic and inorganicpollutants to be beneficial for the removalof contaminants at high concentrations. Moreover, biochar might be used as an effective, low-cost and environmentally friendly adsorbent for the removalof organic and inorganic pollutants removal in industrialwastewater. Adsorption on activated carbon is currently the most frequently used technology for removing organic pollutants from aqueous industrial sludge, surface waters and drinking water.
You will appreciate that; There is no magic panacea or model for the removal of both biochar, inorganic and organic compounds and pollutants. With this; Based on my experience and studies in the literature, I can say that the Langmuir model in adsorption equilibrium studies, and the pseudo-second order model in kinetic studies are number one. It is unique especially in chemical adsorption and more particularly in divalent metal adsorption.
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