摘要：在当今快速发展的时代，各国都面临着能源和环境双重危机，此时绿色可再生能源的开发研究成为各国工作的重点。在能源方面，煤炭、石油、天然气等不可再生资源的消耗逐渐变大，在我国总能源使用中占到80﹪以上，而且我国的能源短缺情况越来越严重，因此开发以及利用新能源变得紧急而迫切[1]。在环境方面，煤炭等能源所产生的废弃物如硫氧、碳氧、氮氧等多种化合物污染物的排放对环境的破坏很严重，因此需要开发生物质能尤为重要。66474

   在生物质能的研究以及开发方向上，利用农业废弃物进行厌氧发酵是一种简单又经济的研究方法。然而不同种类的农业废弃物在发酵时产氢、产沼气的潜力都不同，要最大化的实现厌氧发酵并加以利用，就有必要对不同的农业废弃物进行研究，通过实验结果对他们的产气潜力有所了解，进而通过生物技术使沼气生产产业化，由此开发出一条清洁替代能源的有效途径[2]。本试验是将番薯梗、黄豆梗、玉米桔梗三种农业废弃物作为厌氧发酵实验，测定其产气潜力。

毕业论文关键词：生物质能，厌氧发酵，产气潜力，沼气

Abstract：In today's era of rapid development，Countries are facing a double crisis of energy and the environment.At this time, green renewable energy research and development has become the focus of national efforts.In the energy sector,Coal, oil, gas and other non-renewable resource consumption becomes larger.They accounted for more than 80% of China's total energy use.And China's energy shortage is getting worse, so the development and utilization of new energy sources has become urgent and urgent.In environmental terms, coal and other energy waste generated a variety of compounds such as emissions of sulfur oxide, carbon and oxygen, nitrogen oxides and other pollutants damage to the environment very seriously, and therefore need to develop biomass energy is particularly important.  

    Research and development of biomass can be used in the anaerobic fermentation of agricultural waste.And different agricultural waste hydrogen fermentation, biogas production potential is different.If you want to maximize the potential of anaerobic fermentation to achieve, you need to use different types of agricultural waste as Fermentation raw material for anaerobic fermentation.And Study their potential fermentation.Reached using biotechnology to make biogas production industrialization.Thus the development of an effective way to clean alternative energy.This test takes sweet potato stems, stems soybeans, corn stover three kinds of agricultural wastes as anaerobic fermentation experiments, measured gas production potential.

Keywords： biomass, anaerobic fermentation,Gas production potential,biogas

目 录

1 前言 3

1.1  选题的目的及意义 3

2 选题的相关概述 3

2.1沼气厌氧发酵的原理 3

2.2沼气厌氧发酵的所需原料 4

2.3 沼气厌氧发酵的适应条件 5

2.4本实验厌氧发酵的内容介绍 6

3 实验材料与方法 7

3.1 实验材料 7

3.2 试验装置 7

3.3 实验方案 8

4 实验测试方法与指标 8

4.1 甲烷、二氧化碳 8

4.2 PH值 8