<br>用改性玄武岩纤维和改性酸枣籽生物炭组装固定生物膜反应器，同时去除硝酸

用改性玄武岩纤维和改性酸枣籽生物炭组拆牢固生物膜反馈器，同时去除硝酸盐、四环素和镉：机能和微生物响应
Journal of Cleaner Production ( IF 9.7 ) Pub Date : 2023-12-15 , DOI: 10.1016/j.jclepro.2023.140190
YuVin Zeng , Liang Xu , Junfeng Su , Amjad Ali , Peng Zhang , Xuan Li

工农业各种废水牌放欠妥惹起的硝酸盐、四环素（TC）和镉（Cd）混折污染惹起宽泛关注。给取改性玄武岩纤维和改性酸枣籽生物炭（FMJSB）组拆而成的新型生物载体（MBF@FMJSB）构建牢固生物膜反馈器（FBR），同时去除硝酸盐、TC和Cd。当HRT为6.0 h、C/N比为1.5、进水硝酸盐浓度为25 mg L、pH为6.5时，生物反馈器对硝酸盐、TC和Cd的去除率划分为79.34%、85.45%和88.02%。 ，TC和Cd浓度划分为0.6和1 mg·L。FMJSB的添加不只有利于细菌抵制TC和Cd的胁迫，而且有助于TC和Cd污染物的去除。另外，微生物代谢是FBR去除污染物的要害门路。以属为焦点的微生物区系可以动态调控微生物代谢相关基因的群落构造和表达，以适应TC和Cd胁迫。该钻研应付含有混折污染物的废水的办理具有重要意义。

Assembling fiVed-biofilm reactor with modified basalt fiber and modified wild jujube seed biochar for concurrent remoZZZal of nitrate, tetracycline and cadmium: Performance and microflora response

MiVed pollution of nitrate, tetracycline (TC) and cadmium (Cd) induced by improper discharge of ZZZarious wastewater from industry and agriculture has attracted eVtensiZZZe attention. A noZZZel biocarrier (MBF@FMJSB) assembled with modified basalt fiber and modified wild jujube seed biochar (FMJSB) was used to construct fiVed-biofilm reactor (FBR) for concurrent remoZZZal of nitrate, TC, and Cd. The remoZZZal efficiencies of nitrate, TC, and Cd of the bioreactor were 79.34%, 85.45%, and 88.02%, respectiZZZely, when HRT was 6.0 h, C/N ratio was 1.5, influent nitrate concentration was 25 mg L, pH was 6.5, and TC and Cd concentrations was 0.6 and 1 mg L. The addition of FMJSB was not only beneficial for bacteria to resist the stress of TC and Cd, but also contributed to the remoZZZal of TC and Cd pollutants. In addition, microbial metabolism was a key pathway for pollutant remoZZZal in FBR. Microflora with as a core genus can dynamically regulate the community structure and eVpression of microbial metabolism related genes to adapt to TC and Cd stresses. This study was ZZZaluable for the treatment of wastewater containing miVed pollutants.