Biogas Digester

Biogas is a by-product of organic materials such as plant and animal products being broken down by bacteria in an oxygen-free environment. This process is called anaerobic digestion.

A biogas digestor uses natural anaerobic decomposition of organic matter under controlled conditions.

摘要通常是一个用于有机物的大型，密封的容器，例如牲畜或家禽，农业，污水或食物废物产生的绿色废物。在没有氧气的情况下，细菌消化了这种情况，以产生含有甲烷和二氧化碳的气体。将气体从消化器中吹走并燃烧以产生热能。

Biogas from landfill

Municipal landfill sites also act as very large biogas digestors and produce methane that can be extracted to provide energy. Biogas from landfill sites can be produced at a price that is less than the domestic price of natural gas from fossil fuel sources.

沼气消化器是一个生命系统，因此条件需要适合生长产生甲烷的厌氧细菌。牲畜肥料对消化道有益，因为它们具有适合细菌的中性pH值和高缓冲能力。但是，能量含量相对较低，因为它们已经被牲畜消化。因此，将牲畜泥浆与农业废物混合会增加要消化的生物量的能量含量，从而增加沼气产量。

Biogas from livestock waste

Biogas production is well suited to farming in which there is a combination of livestock and agriculture. However, some care needs to be taken to ensure the digestor has the right mix of biomass feedstock. Growth of the anaerobic bacteria will be inhibited if there is too much ammonia or sulphur. Waste from intensive poultry farming is high in ammonia so this needs to be diluted or the ammonia removed.

ver养

沼气消化可产生高质量的有机肥料，非常适合市场园艺。可以通过使用蠕虫进行堆肥来改善这一点。这称为ver养，涉及将沼气消化剂的残留物与某些earth物种混合。

An advantage of the creation of fertiliser by using farm wastes for biogas is that the digestion process can help reduce the amount of nutrient-rich pollution from animal slurry and sewage, which contains a lot of nitrogen and phosphorus. This type of nutrient pollution is a major problem with intensive livestock rearing if it seeps into nearby rivers causing algal blooms, which can be toxic. Reduction in the amount of oxygen in the river from increased growth of micro-organisms in response to raised nutrient levels can also result in the death of fish.