Vacuum treatment and ion-beam bombardment are two major processes in the low energy ion-beam implantation. To accurately study the contributions of these two major factors to the bioeffects separately, the M1 generati...Vacuum treatment and ion-beam bombardment are two major processes in the low energy ion-beam implantation. To accurately study the contributions of these two major factors to the bioeffects separately, the M1 generation variation of Arabidopsis thaliana with ion-beam implantation and vacuum treatment were compared through a series of key plant development parameters including morphological observation, biochemical assay and RAPD （random amplified polymorphic DNA） analysis. The results showed that ion-beam implantation had obvious effect on almost all of these parameters, and the vacuum treatment had some impacts on several morphological parameters such as the bolting time and the length of the primary stem. Taking the results together, the indication is that vacuum treatment has some slight contributions to the bioeffects of ion-beam implantation while ion-beam bombardment itself is the major creator of the bioeffects.展开更多
Gravity-driven membrane filtration(GDM)has increasingly captured researchers'attention due to its low energy consumption and operation&maintenance.However,severe membrane fouling and permeate DOC increase rest...Gravity-driven membrane filtration(GDM)has increasingly captured researchers'attention due to its low energy consumption and operation&maintenance.However,severe membrane fouling and permeate DOC increase restricted GDM's widespread application.This study combined granular active carbon(GAC)and magnetic particles to address this issue and results suggested that GDM3 achieved highly effective pollutant removals(85%COD_(Mn),95% UV_(254),and 65% DOC)and significant flux improvement(96%)than GDM itself.GAC pretreatment before the membrane mainly helped to reduce pollutant load and improve permeated quality while magnetic particles in situ on the membrane surface contributed to engineering more open and connected structures with less extracellular polymeric substance(EPS)and soluble microbial products(SMP)than other GDM groups due to their bioeffect.GDM3 was cost-effective and had the lowest total cost with a decrease of 7.5%and 5.7%to GDM1 and GDM2.The findings provided a deep insight into the combined GAC and magnetic particles in GDM performance improvement and played a fundamental role in developing sustainable and environmentally friendly GDM processes.展开更多
基金supported by National Science Fund for Distinguished Young Scholars (No. 10225526)
文摘Vacuum treatment and ion-beam bombardment are two major processes in the low energy ion-beam implantation. To accurately study the contributions of these two major factors to the bioeffects separately, the M1 generation variation of Arabidopsis thaliana with ion-beam implantation and vacuum treatment were compared through a series of key plant development parameters including morphological observation, biochemical assay and RAPD （random amplified polymorphic DNA） analysis. The results showed that ion-beam implantation had obvious effect on almost all of these parameters, and the vacuum treatment had some impacts on several morphological parameters such as the bolting time and the length of the primary stem. Taking the results together, the indication is that vacuum treatment has some slight contributions to the bioeffects of ion-beam implantation while ion-beam bombardment itself is the major creator of the bioeffects.
基金supported by the National Key Research and Development Program of China(No.2023YFC3208002)National Natural Science Foundation of China(No.52370007)+1 种基金Excellent Youth Foundation of Hei Long Jiang Province of China(No.YQ2022E034)Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse(No.2021EPC02)。
文摘Gravity-driven membrane filtration(GDM)has increasingly captured researchers'attention due to its low energy consumption and operation&maintenance.However,severe membrane fouling and permeate DOC increase restricted GDM's widespread application.This study combined granular active carbon(GAC)and magnetic particles to address this issue and results suggested that GDM3 achieved highly effective pollutant removals(85%COD_(Mn),95% UV_(254),and 65% DOC)and significant flux improvement(96%)than GDM itself.GAC pretreatment before the membrane mainly helped to reduce pollutant load and improve permeated quality while magnetic particles in situ on the membrane surface contributed to engineering more open and connected structures with less extracellular polymeric substance(EPS)and soluble microbial products(SMP)than other GDM groups due to their bioeffect.GDM3 was cost-effective and had the lowest total cost with a decrease of 7.5%and 5.7%to GDM1 and GDM2.The findings provided a deep insight into the combined GAC and magnetic particles in GDM performance improvement and played a fundamental role in developing sustainable and environmentally friendly GDM processes.
