When biogas generator sets are used to produce biogas, what are the specific production conditions? As a biogas generator manufacturer, let me take you to understand together!

严格的厌氧环境沼气发酵微生物包括产酸菌和产甲烷菌两大类，它们都是厌氧细菌，尤其是产生甲烷的甲烷菌对氧特别敏感。它们不能在有氧的环境中生存，哪怕微量的氧存在，也会使发酵受阻。因此，建造一个不漏气、不漏水的密闭沼气池，是人工制取沼气的关键。

In strict anaerobic environment, biogas fermentation microorganisms include acidogenic bacteria and Methanogen, both of which are anaerobic bacteria, especially methane producing Methanogen, which are particularly sensitive to oxygen. They cannot survive in an aerobic environment, and even the presence of trace amounts of oxygen can hinder fermentation. Therefore, building a sealed biogas digester that is not leaking gas or water is the key to manually producing biogas.

足够和优良的接种物接种物是沼气发酵所需要的含有大量微生物的厌氧活性污泥，也称菌种。只有具备足够优良的接种物才能保证沼气发酵高能运行。农村户用沼气池的接种物一般来源于老沼气池的沼渣（沼液）、阴沟的污泥、粪坑底部的沉渣等。接种物用量一般占总发酵液的30％左右。

Adequate and excellent inoculants are anaerobic activated sludge containing a large number of microorganisms, also known as bacterial strains, required for biogas fermentation. Only with sufficient and excellent inoculants can high-energy operation of biogas fermentation be ensured. The inoculum for rural household biogas digesters generally comes from the old biogas digester's biogas slurry, sludge from the sewer, and sediment from the bottom of the septic tank. The dosage of inoculants generally accounts for about 30% of the total fermentation broth.

必要的发酵温度沼气发酵菌种在8℃～60℃范围内都能发酵产气，并且温度越高，发酵越活跃，产沼气越多。因此，作为常温发酵的农村户用沼气池，应尽量使其发酵温度保持在8℃以上。

The necessary fermentation temperature for biogas fermentation is within the range of 8 ℃ to 60 ℃, and the higher the temperature, the more active the fermentation and the more biogas produced. Therefore, as a rural household biogas digester with room temperature fermentation, the fermentation temperature should be kept above 8 ℃ as much as possible.

适宜的酸碱度在沼气发酵过程中，沼气菌适宜在中性或微碱性的环境中繁殖。发酵液的ph值控制在6.8～7.5为宜。如低于或高于此值，沼气发酵就会缓慢，甚至不能正常进行。

Suitable acidity and alkalinity during biogas fermentation, biogas bacteria are suitable for breeding in neutral or slightly alkaline environments. The pH value of the fermentation broth should be controlled between 6.8 and 7.5. If it is below or above this value, biogas fermentation will be slow or even unable to proceed normally.

适宜的发酵浓度和碳氢比作物秸秆、青草、人畜粪便、生活污水等有机物都可以作为沼气发酵的原料。但发酵原料需满足(20～30)：1的碳氮比和满足6%～10%的发酵浓度。当然，碳氮比和发酵浓度在夏季可适当低些，在冬季可适当高些。

Suitable fermentation concentration and hydrocarbon ratio can be used as raw materials for biogas fermentation, including crop straw, green grass, human and animal manure, and domestic sewage. But the fermentation raw materials need to meet a carbon nitrogen ratio of (20-30): 1 and a fermentation concentration of 6-10%. Of course, the carbon nitrogen ratio and fermentation concentration can be appropriately lower in summer and higher in winter.

经常性的搅拌沼气池。在不搅拌的情况下，发酵料液明显地分为3层：上层结壳层、中层清液层、下层沉渣层。发酵液分层不利于产气，所以，应考虑采取搅拌措施。搅拌的目的是使其不分层，让原料和接种物均匀分布于池内，增加微生物与原料的接触面，加快发酵速度，提高产气量。此外，搅拌也有利于沼气的释放。对有加热装置的沼气池来讲，搅拌有利于热能的传播。目前，采用的搅拌方法主要有3种：机械搅拌、液搅拌、气搅拌。

Regularly stir the biogas digester. Without stirring, the fermentation broth is clearly divided into three layers: the upper crust layer, the middle clear liquid layer, and the lower sediment layer. Stratification of fermentation broth is not conducive to gas production, therefore, stirring measures should be considered. The purpose of stirring is to make it non layered, distribute the raw materials and inoculum evenly in the pool, increase the contact surface between microorganisms and raw materials, accelerate fermentation speed, and increase gas production. In addition, stirring is also beneficial for the release of biogas. For biogas digesters with heating devices, stirring is beneficial for the propagation of heat energy. At present, there are three main stirring methods used: mechanical stirring, liquid stirring, and gas stirring.

严防加入yi制剂。yi制剂主要是一些重金属离子、农药及一些有毒性物质。这类物质不能加入沼气池。

Strictly prevent the addition of yi preparations. Yi formulations mainly consist of heavy metal ions, pesticides, and some toxic substances. This type of substance cannot be added to biogas digesters.