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Abstract A large amount of drilling cuttings are produced in petroleum exploitation， which can be used to prepare porous adsorption materials to effectively solve their disposal problems. The porous adsorption material was prepared from drill cuttings by roasting， and the optimum preparation conditions and adsorption conditions were studied. The results show that the optimum preparation conditions for the adsorption material are as follows： drill cuttings size of 150 μm， food grade starch as pore-forming agent with mass percent of 12%， roasting temperature of 760 ℃， roasting time of 2.0 h. The optimal adsorption conditions are as follows： concentration of original contaminated solution of 10 mg/L， dosage of adsorbent with 0.20 g， adsorption time of 12 h， pH value greater than 10， temperature of 40 ℃， under which the removal rate of methylene blue by adsorbent reaches 98.9%.
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Received: 04 April 2018
Published: 24 December 2018
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2018, Vol. 28 
