The existence of continually increasing concentrations of antibiotics in the environment is a serious potential hazard due to their toxicity and persistence.Unfortunately,conventional treatment techniques,such as thos...The existence of continually increasing concentrations of antibiotics in the environment is a serious potential hazard due to their toxicity and persistence.Unfortunately,conventional treatment techniques,such as those utilized in wastewater treatment plants,are not efficient for the treatment of wastewater containing antibiotic.Recently,algae-based technologies have been found to be a sustainable and promising technique for antibiotic removal.Therefore,this review aims to provide a critical summary of algae-based technologies and their important role in antibiotic wastewater treatment.Algal removal mechanisms including bioadsorption,bioaccumulation,and biodegradation are discussed in detail,with using algae-bacteria consortia for antibiotic treatment,integration of algae with other microorganisms(fungi and multiple algal species),hybrid algae-based treatment and constructed wetlands,and the factors affecting algal antibiotic degradation comprehensively described and assessed.In addition,the use of algae as a precursor for the production of biochar is highlighted,along with the modification of biochar with other materials to improve its antibiotic removal capacity and hybrid algae-based treatment with advanced oxidation processes.Furthermore,recent novel approaches for enhancing antibiotic removal,such as the use of genetic engineering to enhance the antibiotic degradation capacity of algae and the integration of algal antibiotic removal with bioelectrochemical systems are discussed.Finally,some based on the critical review,key future research perspectives are proposed.Overall,this review systematically presents the current progress in algae-mediated antibiotic removal technologies,providing some novel insights for improved alleviation of antibiotic pollution in aquatic environments。展开更多
In order to isolate a well-tolerated microalgae strain and study its capability of wastewater treatment,a newly microalgae strain was isolated and identified from fresh water.The phylogenetic analysis indicates that t...In order to isolate a well-tolerated microalgae strain and study its capability of wastewater treatment,a newly microalgae strain was isolated and identified from fresh water.The phylogenetic analysis indicates that this strain has a close relationship with Desmodesmus sp.,named as EJ 9-2.The effects of temperature,pH value and NaCl concentration on growth of Desmondesmus sp.were investigated;the capability of nutrient removal from alkaline wastewater was also observed.Desmodesmus sp.EJ 9-2 had a wide pH adaptation range(3-12)and could remove nitrogen,phosphorus and COD which might substantially decrease the cost of biofuel production.The research can provide evidence for outdoor large-scale cultivation of microalgae.展开更多
基金the National Natural Science Foundation of China(No.52070057)the National Key Research and Development Program(No.2019YFC0408503)the National Natural Science Foundation of China(No.51961165104).
文摘The existence of continually increasing concentrations of antibiotics in the environment is a serious potential hazard due to their toxicity and persistence.Unfortunately,conventional treatment techniques,such as those utilized in wastewater treatment plants,are not efficient for the treatment of wastewater containing antibiotic.Recently,algae-based technologies have been found to be a sustainable and promising technique for antibiotic removal.Therefore,this review aims to provide a critical summary of algae-based technologies and their important role in antibiotic wastewater treatment.Algal removal mechanisms including bioadsorption,bioaccumulation,and biodegradation are discussed in detail,with using algae-bacteria consortia for antibiotic treatment,integration of algae with other microorganisms(fungi and multiple algal species),hybrid algae-based treatment and constructed wetlands,and the factors affecting algal antibiotic degradation comprehensively described and assessed.In addition,the use of algae as a precursor for the production of biochar is highlighted,along with the modification of biochar with other materials to improve its antibiotic removal capacity and hybrid algae-based treatment with advanced oxidation processes.Furthermore,recent novel approaches for enhancing antibiotic removal,such as the use of genetic engineering to enhance the antibiotic degradation capacity of algae and the integration of algal antibiotic removal with bioelectrochemical systems are discussed.Finally,some based on the critical review,key future research perspectives are proposed.Overall,this review systematically presents the current progress in algae-mediated antibiotic removal technologies,providing some novel insights for improved alleviation of antibiotic pollution in aquatic environments。
基金This investigation was financially supported by“The Twelfth Five-Year Plan”for Science&Technology Supporting Project(Grant No.2012BAD47B03,Chinese Ministry of Science and Technology)Beijing Municipal Key Discipline of Biomass Engineering.
文摘In order to isolate a well-tolerated microalgae strain and study its capability of wastewater treatment,a newly microalgae strain was isolated and identified from fresh water.The phylogenetic analysis indicates that this strain has a close relationship with Desmodesmus sp.,named as EJ 9-2.The effects of temperature,pH value and NaCl concentration on growth of Desmondesmus sp.were investigated;the capability of nutrient removal from alkaline wastewater was also observed.Desmodesmus sp.EJ 9-2 had a wide pH adaptation range(3-12)and could remove nitrogen,phosphorus and COD which might substantially decrease the cost of biofuel production.The research can provide evidence for outdoor large-scale cultivation of microalgae.
