The Study Of Biodegradation Of Dairy Farming Waste Enhanced By Electromagnetic

With the development of the construction of new socialist countryside,the rural economic structure began to transform into green ecological type slowly,the mode of the livestock and poultry breeding in the countryside began to transform from free-range type to intensive healthy ecological type,the ecological concept of environmental protection began to root in the hearts of the people deeply,and the methods of collecting the waste of livestock and poultry breeding were more and more scientific.Using anaerobic fermentation technology to recycle reuse and reduce the aquaculture waste not only can control the pollution,but also can produce clean energy methane.It is very healthy and environmental,and can bring significant social,economic and ecological benefits.Based on the Fe-C composite strengthening,electrochemistry with Fe-C composite strengthening,electromagnetic with Fe-C combination strengthening three kinds of strengthening anaerobic fermentation technology,the article analyzed the gas properties of dairy waste anaerobic fermentation,the degradation effect of the lignocellulose after anaerobic fermentation.The concrete content is as follows:1.Adding Fe,activated carbon and Fe-C composite to the anaerobic fermentation system did have auxiliary effect,it could improve gas production,increase the methane content,and strengthen the degradation of lignocellulose.During the three kinds of strengthening method,the Fe-C composite had the best auxiliary effect.The unit cumulative gas production can reach 101.59 ml/g,the raw material conversion rate was 33.86%,the methane accounted for 73.18%of total output,the cellulose degradation rate was 20.37%,and the lignin degradation rate was 9.53%.2.during the five groups of Fe-C combined hardenning anaerobic fermentation experiments,the F group has the greatest effect to improve the dairy waste anaerobic fermentation gas production(The unit cumulative gas production can reach 123.72 ml/g).The higher the content of Fe in the Fe-C combination,the higher the proportion of CH4 in the output gas(the I group can reach 77.39%).In the degradation of lignocellulose aspect,the H group has the highest cellulose degradation rate(33.47%),and the F group has the highest lignin degradation rate(15.4%).From the view of recycling,the F group has the greatest effect to improve dairy farming waste anaerobic fermentation effect which can improve the raw material conversion of anaerobic fermentation(41.24%)and develop the methane production(9348.294ml)achieving better waste recycling use.3.The applied voltage had a significant impact on Fe-C combination dairy waste anaerobic fermentation,the load voltage could improve the dairy waste anaerobic fermentation rate of producing gas,accessing to the normal gassing phase of anaerobic fermentation quickly,accessing to the gas peak a week ahead,and shorten the anaerobic fermentation cycle.Loaded 0.3V,0.5V,0.8V voltage could assist anaerobic fermentation.With the higher the voltage was applied,the waste raw material conversion rate increased.The load voltage could affect the daily methane production of anaerobic fermentation.As the voltage rose,the degradation rate of cellulose and lignin rose as well.4.When the 0.3V and 0.5V was loaded and Fe-C combination was applied,the use of soft rubber magnetic drum could improve the gas production and raw material conversion rate.But it would cause inhibitory effect when the voltage was 0.8V.Under the action of magnetic field,the methane content could only be improved when the voltage was 0.3V.Considered the conditions of gas production,raw material conversion rate,the amount of methane and lignocellulose degradation rate,the magnetic field with the load voltage of 0.3V had the best effect on dairy farming fecal Fe-C combined anaerobic fermentation.5.According to the Metagenome sequence analysis of the microorganism from each groups,we considered that the electrochemical reaction,the magnetic biological effect,the Fe-C combined microelectrolysis had great impact on strengthen the microorganism and could enhance the richness and diversity of flora species.At the same time,it could benefit the survival of flora microorganisms of Fibrobacteres phyla,which could strengthen the dairy manure anaerobic conversion and promote the degradation of lignocellulose to realize the resource utilization of dairy farming manure.