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A Study On The Current Status Of The Waste Products And Recycling Utilization Of Waste Products In Hilly Region

Posted on:2007-06-03Degree:MasterType:Thesis
Country:ChinaCandidate:G S WuFull Text:PDF
GTID:2121360242965848Subject:AE01 planting
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Since reform and opening-up in china, the economy of agriculture and the country has developed greatly. However, with the quick progress of rural economic, traditional extensive development model has not yet been changed completely. Rural rubbish amount, agricultural production and animal wastes amount is increasing on land, the low treatment level of waste products and the rather low rate of comprehensive utilization have caused heavy environmental pollution and great threat to the health of the public. And they also has already restricted the further development of the rural economy seriously. If these problems are not been solved in time ,which will limit seriously to realize the object of constructing the new socialist rural area and overall well-off society. This article made an all-round analysis and investigation of agricultural scrap-current status and prospects of the hilly district in china. By this investigation, we understand the present case of pollution and the current treatment situation, and probe into the administration and countermeasures of waste products cyclic utilization.This article select Jiangning area's Qinglong community of Nanjing as demonstration analysis object of hilly area's villages and small towns. During March and April ,2006, by the means of delivering questionnaires, interviewing an chatting and looking up material about villages and small towns, and so on, we performed field survey on 5 villages in this area. Qinglong community has an area of 10.8 square kilometers, with farmland 4427 mu. The whole village has 1117 households ,with the population of 3341. The organic waste is 3792.3 tons, accounting for 98 percentage of the total waste,62 percentage of what come from stems in the process of crop production,36 percentage are mainly generated by animals. The inorganic waste is 62.04 tons, taking up 2 percentage of the total waste. 40 percentage of crop stems are used to burn as fuel, 10 percentage are used to produce crude feed for animals, about 30 percentage are piled up on the two sides of roads and farmland to be bought, and also 60 percentage of animals' dung are bestowed into farmland after compost fermentation, the other are drained into nearby rivers as common garbage.We study several waste-products processing which includes that microorganisms and earthworms disposal the detections of birds and domestic animals in Qinglong community, Jiangning region, nanjing. The experiment expresses that it is high efficiency for quicken the ferment process, deodorization, controlling molds and insects and advancing the level of fertility to add microorganism in cows' dejection. Kekai Biological ferment has such advantages as the temperature raises fast, deodorization thoroughly, disinsection thoroughly and enhancing wet basis nutrient by forty three point three percent. It is better than other floras. We study the different mediums which affect the growth of earthworms in the aquaculture-experiment, the result shows that cattle manures, pig manures and dregs of flammulina velutipes are better than other mediums for earthworms. By contrast to soil, the unities of earthworms increase 68%, and the biomass increases 110% in cattle manures. The increase rate is 45% and 68% in dregs of flammulina velutipes.The experiment of earthworm' dung affecting cultivating seedling of eggplant shows that the two new growth medias have fine physical and chemical character, especially the N, the P, the K and the organic matter.The effects of dregs of flammulina velutipes is better than other ones, the height reaches 6.85, the rough reaches 0.22, and the width reaches 3.53.The gasification project of the straw of has been effective operated in the past two years in the shinian village, Jiangning region. It has decreased the peasants' expenses and improved the rural environment, and it has brought favorable social ecological and economic benefits.On characteristics of waste products, mode of comprehensive utilization is be brought forward in some villages and small towns where crop straw is the main waste products. It is based on principles of 3-R (Reduce, Reuse and Recycle) and that of doing some things in accordance with local conditions. The specific ways are returning of crop straw to the field, gasification, or using straw for making coarse fodder. Though these ways, crop straw can be changed into the renewable resources. In some villages and small towns where animal excreta is the main waste products, We should constitute ecology agricultural use pattern by bonding earthworms and methane. It offers farmers domestic energy source and composting, widen channel for increasing income and cutting down expenses by using human & animal manures, so that improve condition living standards and make farmer become richer. Municipal solid waste's management is brought into the rural areas. We implement the central treatment of inhabitant's garbage harmless disposing fully, and establish perfect mechanism about rural health sanitation situation of the cleaning step by step so that improving the quality of rural residential environment.
Keywords/Search Tags:hilly area, waste products, cyclic utilization, resource, village and small town
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