中国海洋大学学报（自然科学版）2026，Vol.56Issue(5)：120-128,9.DOI:10.16441/j.cnki.hdxb.20240158
铁碳填料的曝气生物滤池处理海水养殖废水的效能与机制
Studies on the Efficacy and Mechanism of Aerated Biofilter with Iron-Carbon Packing for the Treatment of Mariculture Wastewater
摘要
Abstract
To solve the problem of poor effect of traditional biological treatment methods in treating mariculture tail water,a biological aerated filter(BAF)system was constructed with iron and carbon materials as fillers,the static pollutant adsorption characteristics of iron and carbon fillers were analyzed,and the effects of the system on nitrogen and phosphorus removal from mariculture wastewater with different hydraulic retention times and gas-to-water ratios were compared,and the mechanism of the system was explored.The results showed that compared with granular activated carbon(GAC)and ceramic FeC packing showed better static phosphate adsorption performance.The maximum phosphate adsorption capacity of FeC packing obtained from adsorption kinetic fitting and adsorption isotherm fitting was 1.80 and 1.69 mg·g-1,respectively.The optimal hydraulic retention time was 9 h,corresponding to the total nitrogen(TN)and total phosphorus(TP)removal rate of 58.00%and 93.65%.The optimal gas-to-water ratio was 5∶1,corresponding to the TN and TP removal rate of 60.43%and 93.64%.The X-ray diffraction characterization of the FeC filler before and after use showed that the co-precipitation of iron ions and other metal ions released by FeC filler with phosphate was the key mechanism for phosphorus removal.Comparison of the microbial community structure at the phylum level in ceramic BAF and iron-carbon BAF systems showed that FeC filler may promote the enrichment of functional bacteria related to denitrification and phosphorus removal in the system.关键词
铁碳填料/曝气生物滤池/海水养殖废水/脱氮除磷/微生物群落Key words
iron-carbon packing/biological aerated filter/mariculture wastewater/nitrogen and phos-phorus removal/microbial community分类
农业科技引用本文复制引用
徐溢波,相壮壮,李辉,白洁,陈晓红,孙惠琛,晨曦..铁碳填料的曝气生物滤池处理海水养殖废水的效能与机制[J].中国海洋大学学报（自然科学版）,2026,56(5):120-128,9.基金项目
国家自然科学基金项目(U20A20103)资助 Supported by the National Natural Science Foundation of China(U20A20103) （U20A20103）
