生物质化学工程2024，Vol.58Issue(4)：23-29,7.DOI:10.3969/j.issn.1673-5854.2024.04.004
抗生素去除与二氧化碳固定耦合的微藻包埋技术研究
Microalgae Embedding for Coupling Technology Research of Antibiotic Removal and Carbon Dioxide Immobilization
摘要
Abstract
To address the problem of serious antibiotic pollution and excessive carbon dioxide emissions,this study utilized Chlorella pyrenoidosa as the raw material,sodium alginate as the immobilizer,and calcium chloride as the cross-linking agent to prepare C.pyrenoidosa beads.The coupled technology of antibiotic removal and carbon dioxide fixation was studied.The results indicated that when the mass fraction of sodium alginate was 2％and that of calcium chloride was 3％,the alginate beads exhibited optimal formation speed,mechanical strength,and resistance to disintegration.The presence of carbon dioxide at volume fractions of 5％and 10％significantly promoted the growth of the microalgae and enhanced its capability to process ceftriaxone.After 24 h reaction,the removal rates of Ceftriaxone were 84.89％and 84.31％,and the absorption rates of carbon dioxide were 72.25％and 71.71％.Compared with 5％and 10％volume fraction of carbon dioxide,the treatment of antibiotics and the absorption rate of carbon dioxide by C.pyrenoidosa under 20％volume fraction were significantly reduced.The activity of the carbon metabolism-related enzyme 1,5-bisphosphate ribulose carboxylase was significantly increased under 5％and 10％conditions,thereby enabling the microalgal cells to fix more carbon dioxide.The activity of carbonic anhydrase was significantly elevated under the 10％condition,facilitating the catalytic conversion of more bicarbonate into carbon dioxide,which could then be absorbed and utilized by the microalgal cells.关键词
固定化/微藻/抗生素处理/二氧化碳固定/协同处理Key words
immobilization/microalgae/antibiotic treatment/carbon dioxide fixation/co-processing分类
化学化工引用本文复制引用
汪东,李海涛,郭向前,俞健健,章晓春,孔凡敏..抗生素去除与二氧化碳固定耦合的微藻包埋技术研究[J].生物质化学工程,2024,58(4):23-29,7.基金项目
中石化化工事业部项目(CHG21074) （CHG21074）
