| abstract |
The invention discloses a kind of composite reactive carbon adsorbent for adsorbing heavy metal Cr (VI) and its preparation and regeneration methods, belong to environmental technology field, composite activated carbon therein is made of 40%~60% plant shell skin of mass ratio, 20%~50% municipal sludge, 5%~20% greasy filth, by crushing, oxidation, charing, activation, pickling, drying and etc. be prepared.The present invention has the advantages that large specific surface area, micropore volume be big, iodine number large amount of adsorption, especially to heavy metal in waste water Cr (VI) large amount of adsorption；Invention introduces the high greasy filth of asphalt content, effectively increase carbon content, solve the problems, such as that active sludge carbon micropore is less, significantly improve compared with similar product adsorption effect；Plant shell skin, municipal sludge, greasy filth waste resource recovery are utilized simultaneously, and the composite reactive carbon adsorbent of adsorption saturation is by removing the method for being filtered, washed, drying after vibrating in sodium hydroxide solution, it can regenerate, it further reduced use cost, have broad application prospects in the exceeded wastewater treatment of heavy metal Cr (VI). |