目前,我省已有三十多万只农村家用沼气池,对解决农村生活用燃发挥了一定的效用。但产气率都比较低,一般仅在0.10m~3/m~3、日左右。产气率低的原因除沼气池本身施工质量出现渗漏外,发酵工艺也有待改进,而发酵原料不足和发酵液中干物质含量偏低是当前农村沼气池产气率低的重要因素,许多沼气池由于“吃不饱”,气不足,要提高沼气池发酵浓度就要广开原料来源,已成为急待解决的现实问题。我省气候温和,水生植物资源丰富,细绿萍就是一种很有发展前途的能源植物。由于它耐低温,繁 At present, there are more than 300,000 rural household biogas digesters in our province, which have played a certain role in solving the problems of burning rural life. However, the gas production rates are relatively low, generally only 0.10m ~ 3 / m ~ 3, day or so. In addition to the leakage of construction quality of biogas digesters, the fermentation process needs to be improved. However, insufficient fermentation raw materials and low dry matter content in fermentation broth are important factors for the low gas production rate in rural biogas digesters. Many of them Biogas digesters as “not enough”, lack of gas, biogas digester fermentation to increase the concentration of raw materials should be widely open source, has become an urgent problem to be solved. Mild climate in our province, rich in aquatic plants, fine green Ping is a very promising energy plant. Because of its low temperature, complex