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The Magnetic Manganese Oxide Cycle Degrades PhACs And Regenerates

Posted on:2021-08-15Degree:MasterType:Thesis
Country:ChinaCandidate:W P KuangFull Text:PDF
GTID:2491306464479594Subject:Safety engineering
Abstract/Summary:PDF Full Text Request
Water environmental security is an important guarantee for sustainable development and ecological security,and because ph ACs(Pharmaceutically active compounds)has a unique effect,some drugs are widely used,and some of the drugs eventually enter the environment,which can affect the plants and animals of the water,and pose a potential threat to human health.This paper studies the differences of bio-manganese oxide and magnetic bio-manganese oxide,and explores the dynamics of APAP and the transformation of the organic organisms after the degradation of the APAP,and the experiment and regeneration experiment of the reactor,and the feasibility of the application of magnetic bio-manganese oxide to reduce the active compound in the water environment of the water environment,and ensure the safety of the water environment.The manganese oxide and magnetic bio-manganese oxide were characterized by Morphology,size,XRD,VSM.It is found that bio-manganese oxides are clustered together by many irregular spheres and form the cluster of reunion clusters.A part of the magnetic nano-4 oxide is covered in the bio-manganese oxide,which is a good load on the surface of the bio-manganese oxide.The minimum particle size of magnetic bio-manganese oxide is larger than that of bio-manganese oxide,and the magnetic bio-manganese oxide particle size distribution is mostly smaller than that of bio-manganese oxide.The XRD map confirms that the magnetic nano-4 oxide is a good load and is carried in the bio-manganese oxide.VSM shows that magnetic bio-manganese oxide has magnetic energy and electromagnetic separation.The degradation comparison of manganese oxide and magnetic bio-manganese oxide was made,and the removal of the chemical manganese oxide was mainly based on adsorption.Compared with the effect of bio-oxide degradation,the degradation of magnetic bio-oxide was found to be superior to manganese oxide.The degradation reaction of bio-manganese oxide and magnetic bio-manganese oxide was found to be in the primary reaction dynamics,and the bio-manganese oxide and magnetic bio-manganese oxide were able to cycle degradation target organic,and the degradation efficiency of the cycle was gradually reduced,and after the cycle of multiple cycles,the density manganese oxide surface was destroyed,and the structure of the honeycomb was lost.In the solution of the degradation experiment,a large number of the Mn2+and small amount of Fe2+were present,and the degradation reaction was explained by the degradation of the high price manganese in manganese oxide.The number of manganese oxides in the period of multiple rounds of degradation,the peak of the XPS spectrum and the fand of the fand are significantly changed,and the changes of some functional groups or substances have been changed after the degradation of the target organic matter.In the PYCM system,the regeneration of the Fe2+and the regeneration of the Mn2+in the solution were realized,and the results were not obvious.The degradation ability of magnetic bio-manganese oxide ultrasonic oscillations is still biodegradable,and the degradation ability decreases more,indicating that ultrasonic does not change the chemical structure of the material,which affects the load or material of the four oxide three iron ions,resulting in the degradation of the degradation ability.Collecting multi-cycle loss of the manganese oxide solid of the degradation ability,and added to the pycm medium,and found that the loss of the degradation ability manganese oxide can regenerate and function,and regenerate it has good degradation ability.The combustion of the flame and the small reactor experiment was collected by the collection of magnetic bio-manganese oxide,and the effect of the befry was slower by about 5%,and the reaction of the reactor was 10%.The continuous flow experiment of the reactor was carried out,and the time of stay was 2h,the solid solution was 1:12:1and 3:1,and the results of the solid liquid ratio of 3:1 were the best.
Keywords/Search Tags:Pseudomonas putida QYS-1, Magnetic biological manganese oxide, Magnetic biological manganese oxide regeneration, Reactor continuous flow
PDF Full Text Request
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