Research On The Characteristics And Composting Of Rural Refuse In Tiaoxi River Basin

Characteristics of rural refuse, social, economic and environmental awareness of villages of Taihu yuan town, Hengfan town of Lin'an city and Jingshan town in Yuhang district in the Tiaoxi River Basins were investigated in this paper. On this basis, build compound management pattern for rural refuse of Tiaoxi River Basins. Also a complex microbial compound agent was developed, and then it was inoculated to enhance domestic refuse composting process. A new way was provided to disposal the rural refuse. The main conclusions of the work were listed in following sections.1. The study on the area showed that rural refuse the generation rate in the investigating area was 0.5~0.7 kg per capita per day. The section of domestic refuse was most, which was 48.5~66.0%. The survey of Characteristics of social and economic showed that a larger proportion of non-farm, per capita income higher, large proportion of liquefied gas, and culture dominated by chicken in household. Rural refuse of study area per capita output would continue to increase. Although villagers had realized the dangers of rural refuse and were willing to pay for rural rufuse disposal, rufuse classification and collection was strange for villagers. The significant effected of rufuse classification and collection by Education level and age of villagers, but gender had no significant effected. At this stage, before the implementation of rufuse classification and collection in rural areas, improved the qualifications of villagers, and strengthen knowledge universal of rufuse classification and collection. Based on the the generation characteristics of rural refuse in rural areas and conditions of elimination, constructed a reasonable management pattern, which was composed of rough classification, sort in source and refuse diversion.2. The results perishable refuses in the first fermentation of composting showed that the degradation rate of biomass was different: fat > total > sugar > hemicellulose > protein > cellulose > lignin. Easily degradable components of fat, total sugar, hemicellulose and protein degradation rates were 73.24%, 54.76%, 17.18%, 16.72%; degradation rates of cellulose and lignin were only 12.32% and 10.49%, which were degradated in the secondary fermentation. Microorganisms show different biological phase evolution: the number of bacteria up and then decreased, the number of fungi remained unchanged; the number of actinomycetes had two peaks under the influence of high temperature.Temperature on the different types of biomass degradation; the degradation of fat, total sugar, hemicellulose at high temperature around 65℃which rate speed up significantly. But the rate of cellulose and lignin were insignificantly.3. Extracted from the advantages of high temperature period of secondary fermentation process and got the complex microbial agent, and complex microbial agent was inoculated at the secondary fermentation of the initial. The conclution showed that inoculated treatment got ahead of the second fermentation temperature 12 h, and the temperature was extended by 24 h than non-inoculated treatment. Inoculation enhanced composting processing, C / N decreased from 22.4 to 18.1, enter mature need 17 d, got ahead of 7 d than non-inoculated treatment; The number of microorganisms was higher than non-inoculated treatmeat; degradation rates of cellulose and lignin were higher than non-inoculated treatment in the pile. Garlic was fertilized higher about 8 cm than no-fertilized and the number of leaves more than 1.5.