Study on regeneration of waste powder activated carbon through pyrolysis and its adsorption capacity of phosphorus

作者：Li, Yi; Jin, Hailan^*; Liu, Wenbo; Su, Hang; Lu, Yao; Li, Jianfen^*

来源：Scientific Reports, 2018, 8(1): 778.

DOI：10.1038/s41598-017-19131-x

• THERMAL REGENERATION
• REMOVAL
• AMMONIUM
• SLUDGE

The regeneration of WPAC through pyrolysis and its adsorption capacity of phosphorus were studied. The optimum conditions for WPAC regeneration were 650 degrees C and 2 h which resulted in a recovery of BET surface and total pore volume with a value of 1161.4 m(2)/g and 1.2176 m(3)/g. WPAC had a maximum PO43- P adsorption capacity of 9.65 mg/g which was 48.93% of PAC, while RWPAC had a maximum PO43- P adsorption capacity of 15.31 mg/g which was 77.64% of PAC. The kinetic analysis revealed that Langmuir model could well describe the adsorption process of PAC, WPAC and RWPAC on PO43- P and the PO43- P adsorption followed the pseudo-second-order model.

• 出版日期2018-1-15
• 单位东北林业大学; 武汉轻工大学