Study On Recycling Model Of Waste In Citrus Planting And Processing Park

Citrus planting and production in the Three Gorges Reservoir area of Chongqing,as an important characteristic industry in the western mountainous areas,is developing into a whole new period.However,the discarded citrus peels seriously pollute the soil and water bodies.The use of fertilizers and pesticides is not reasonable,and the any discharge of agricultural production and domestic sewage are still existing.Under this background,this paper explored the existing waste recycling mode and problems of agricultural citrus and processing park based on the theory of agricultural circular development mode and the survey data of Three Gorges Reservoir area of Chongqing City.Adhere to the principle of "Reduction,reuse and recycling of waste waste ",the waste utilization model of citrus planting and processing was Studied Waste comprehensively and deeply.Finally,the compound recycling model “citrus,vegetables,fertilizer,feed,farm” of citrus park was constructed.Based on the each component function and the analysis of social,environmental and economic benefitscompound of the compound recycling model,it could be found the mode was benefit for the successful economic development,reduction of the environmental pollution and the agricultural sustainable development of the local agricultural economic development.And the compound mode has important theoretical value and practical significance.In the study of waste recycling model based on reduction technology,it is found that the proportion of elements in the soil of the citrus park is out of proportion.The use of fertilizer is not balanced and there is also a large amount of wastage.In addition,it is also found that the pesticides in the park have the problems of increasing concentration arbitrarily,selecting spraying tools incorrectly and using drugs indiscriminately before harvest.Based on the analysis of the above problems,this paper some technical So,the suggestions on the application of pesticides and fertilizers based on reduction and the analysis of social,environmental and economic benefits of the reduction technology was puts forward.According to the present situation of waste of rain water and waste water resources in the park,reuse technology of the rainwater and domestic and production sewage in park was proposed.The technologies were roof rainwater collection combined with water reuse system,the Rainwater catchment storage system and the treated living sewage is used to irrigate the park and produce methane in the process of sewage treatment.it is found that the wastewater reuse technology has better social benefits,environmental benefits and can produce considerable economic benefits.As a result of 500 thousand tons of citrus peel produced annually in the park,it is not only a waste of resources,but also causes environmental and water pollution.Through the analysis of the contents and the components of citrus peel,it was found that the citrus peel can be effectively used through extraction,fermentation,compost and silage technology.And these technologies can bring good social,environmental and economic benefits for the park.Based on the above analysis,through the analysis in the market demand,the compound production cycle mode “citrus,vegetables,fertilizer,feed,farm”in Three Gorges Reservoir Area Citrus Park was constructed.And the functions of the two subsystems of the model and the relationship between the qualitative and quantitative was also analysised.The research was investigated in three aspects of production mode,organization mode and technology system.The social and environmental benefits of the composite recycling model are obvious,and the economic benefits have great potential for development.