如何提高沼气产气率,使之达到产气快而持久,是保证用户常年用气的关键。根据我区几年来办沼气的实践,从沼气发酵角度和管理方面提出几项提高沼气产气率的措施,供参考。一、合理搭配发酵原料,适当配制发酵原料浓度。沼气发酵原料是产生沼气的物质基础。各种发酵原料的产气快慢和持久程度差异很大,这主要取决于原料的分解速度。一般含纤维素较多的作物秸秆、杂草等分解慢,产气速度也慢,但产气持续的时间长;而含纤维素少的人畜粪便易于分解 How to improve biogas gas production rate so as to achieve fast and long-term gas production is the key to ensuring the user’s annual gas consumption. According to our practice of running biogas for several years, several measures to improve biogas gas production rate are put forward for reference from the perspective of biogas fermentation and management. First, with a reasonable fermentation of raw materials, the appropriate preparation of fermentation raw material concentration. Biogas fermentation raw materials is the material basis for biogas production. Various fermentation raw materials of the gas production rate and long-lasting degree vary widely, mainly depending on the decomposition rate of raw materials. Generally contain more cellulose, crop stalks, weeds and other slow decomposition, gas production rate is slow, but the production of gas lasts for a long time; and less man-made cellulose and manure decomposition