Discussion On Straw Waste Treatment And Development Of Biomass Carbonization In Dustry

With the progress of science and technology,crop production continues to increase,the rapid development of agricultural products processing,crop stalks and other agricultural waste increased rapidly.In the past ten years,the process of rural urbanization has been accelerated,the living standard of farmers has been improved,the demand of agricultural waste for living fuel and returning to field has been reduced.The utilization of agricultural waste has become a difficult problem in restricting agricultural sustainable development.However,due to the influence of technology,tradition and concept,China’s waste biomass recycling rate is low,crop straw is arbitrarily discarded or burned,a serious waste of resources while also increasing the greenhouse gas emissions and atmospheric haze and other environmental pollution risks The However,in recent years,biochar agriculture research has developed rapidly,through the biomass carbonization technology to waste the pyrolysis of biomass carbon and recycling in agriculture as a new straw and other waste treatment and resource-based value-added use of the new direction.This paper starts from the issue of straw management,discusses the policy and industry status of agricultural waste management,discusses the development trend of straw and other carbonization technology and biochar industry,and looks forward to the prospect of this industry as a new way of agricultural and rural green development.In this paper,the paper puts forward the plutonium bacon in China’s media and analyzes the dilemma of the current agricultural biomass waste.Secondly,through the research of literature and network information,the development trend of biomass carbonization technology and the current situation of industrial application are analyzed,Field research and media analysis of the combination of finishing and summarizes the domestic biochar related enterprises,and further look forward to the industrialization of biochar and market trends.The main results of this paper are as follows:(1)From the point of view of straw banned slogans,it is divided into four categories:popular science class,policy metaphor class,social morality category and threatening intimidation class,accounting for 18%,20%,23%and 39%of the total.Threats are the most slogans of the threat,and the science is the least.From the geographical distribution of the slogan,the suspension of the straw ban on the ban,to a certain extent played a role in the ban on burning,reducing the risk of straw burning,but threatening intimidation of slogans-based areas,such as Henan Province,Shandong Province,Straw burning phenomenon than the previous slowed down,but still serious,popular science class,social morality and policy metaphor class more slogans,straw burning,although not completely disappeared,has also been greatly reduced.The results show that the factors affecting the management of agricultural biomass waste are mainly in the following four aspects:First,straw cleaning and transportation difficult;Second,the comprehensive utilization of straw is difficult;Third,the concept of the people to change difficult;Fourth,difficult to monitor.Based on the above research,it shows that the industrialization and marketization of agricultural biomass waste is the only way out for comprehensive management.(2)The biochar itself is characterized by high C content,alkaline,and has a complex pore structure and rich surface area.It is widely used in agriculture,energy and environmental protection.Experiments in a large number of literatures show that biochar can act as a soil conditioner,which regulates soil pH,improves soil structure,replenishes soil nutrients,responds to heavy metals and organic pollutants in soil,and reduces greenhouse gas emissions from farmland.(3)kiln-type carbonization furnace in the form of direct combustion in anoxic environment,the output of the gas directly discharged,can not be recycled;rotary and vertical carbonization furnace are used in the form of external heating carbonization,gas,Solid three-phase separation,respectively,recovery.The difference is the rotary carbonization furnace gas can be recycled,self-produced for use,saving energy;vertical carbonization furnace can be purified after the gas recovery.Through the research on the production status of biomass carbonization equipment in the market,it is shown that,on the one hand,the carbonization equipment can be moved,the development and production of the movable carbonization furnace can be completed in the fields,and the raw material carbonization is returned to the field.On the other hand,,To enhance the efficiency of biomass carbonization,research and development of new biomass industrial carbonization equipment,are the future of biomass carbonization equipment,the main research direction.(4)Through the statistics of the year of registration,it was found that since 2006,the biochar related enterprises showed a rapid growth trend.Through the statistics of the enterprises belonging to the enterprises,it was found that the straw resources(excluding Hong Kong,Macao and Taiwan regions)Rich in the region,the distribution of biochar-related enterprises is also relatively dense,the reason,first,rich raw materials,can directly reduce the production costs;Second,crop cultivation area,a wide range of biochar use,is conducive to business Economic transformation of the product.At the same time,this paper also analyzes the market economy of biochar and related products,and shows the huge economic benefits and broad prospects of biochar.The statistical analysis and data research of this paper support the new technology with the characteristics and vitality of the agricultural waste of straw and other agricultural wastes,and its industrial development is showing rapid growth trend,and the related enterprises are growing up.It is suggested that Jinhua should strengthen the investment in this direction,further improve the carbonization industry and product agriculture application of different models,comprehensively promote the agricultural extension of biochar,and support the development of the new type of waste for the purpose of recycling Material industry.