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在农忙季节,气温逐渐升高,田间正需有机肥,是沼气池大换料的最好时机。为了安全起见,在大换料时应注意以下两点: 一、防中毒窒息 沼气的主要成份是甲烷和二氧化碳,还有少量的硫化氢和一氧化碳等有毒气体。甲烷是一种无毒气体,但在空气中浓度达到30％可使人麻醉,浓度达到70％时会使人因缺氧而窒息死亡。二氧化碳也是一种窒息性气体,沼气中二氧化碳含量占30～40％,其比重是空气的1.53倍,所以在大换料时,沼气池中的二氧化碳就不易散发出来。池内只有沼气,而没有氧气,入池操作就容易发生窒息性中毒。预防中毒的措施是:
In the busy season, the temperature gradually increased, the field is in need of organic fertilizer, biogas digester large refueling the best time. In order to be safe, the following two points should be noticed when large refueling: First, poisoning Asphyxia The main components of methane are methane and carbon dioxide, as well as a small amount of toxic gases such as hydrogen sulfide and carbon monoxide. Methane is a nontoxic gas, but up to 30% in the air can cause anesthesia and up to 70% can cause suffocation due to lack of oxygen. Carbon dioxide is also a smothering gas. The carbon dioxide content in biogas accounts for 30-40% of the total carbon dioxide, and its proportion is 1.53 times that of air. Therefore, carbon dioxide in the biogas digester will not be easily emitted when the material is refueled. Only biogas in the pool, but no oxygen, into the pool operation is prone to suffocation poisoning. Measures to prevent poisoning are: