Study on continuous Adsorption/Microwave-Activated carbon for removing Sulfachloropyridazine

In this study, activated carbon operated by microwave (MW) pretreatment and further MW regeneration was used to remove sulfachloropyridazine (SCP) to explore the influence of MW on activated carbon. The results reveal the adsorption capacity (q(e,exp)) of pretreated activated carbon (PAC) was double that of the original activated carbon (OAC). With an increase in adsorption/MW times, the q(e,exp) of regenerated activated carbon (RAC) did not change much. Through Brunauer-Emmett-Teller (BET) analyses, the Micropore volume of PAC (V-micro = 0.4035 cm(3)g(-1)) was higher than that of OAC (V-micro = 0.1548 cm(3)g(-1)), this indicated that PAC creates a large number of micropores as a result of MW pretreatment. Also, S-BET of RAC kept within a stable range (824.97-868.88 cm(2)g(-1)), and S-BET of 6th-RAC was still as high as 861.18 m(2)g(-1) after 6 continuous adsorption/MW cycles, which indicated the activated carbon restored stable properties after multiple microwave regeneration.

Automated summary

The study demonstrates that microwave pretreatment and regeneration can greatly enhance the adsorption capacity of activated carbon for sulfachloropyridazine, and that the pretreated activated carbon creates a large number of micropores. The regenerated activated carbon also maintains stable properties after multiple microwave cycles.