What are the benefits of biogas material pretreatment?
Biogas materials typically include crop stalks, forages, leaves, and animal manure. If compounds like lignin, cellulose, hemicellulose, pectin, and waxy layers in the straw are not properly treated, they can form a crust on the surface, leading to reduced gas production and efficiency. Pretreating these materials helps improve the overall performance of the biogas system in several key ways:
1. **Shorten the gas production time**. Raw straw is hard to break down due to its high lignin and fiber content. By using fast aerobic fermentation methods like Golden Treasure, the straw becomes more digestible before being fed into the digester. This significantly reduces the time it takes for the digestion process to start, allowing the system to enter the gas production phase faster—saving over 60% of the time compared to natural decomposition.
2. **Prevent crust formation and blockage**. The outer layer of straw contains wax that is difficult for microorganisms to break down. If left untreated, this wax can create a floating crust inside the digester, which hinders the breakdown of the material and reduces gas yield. Using a pretreatment like Glyphon Biogas Fast Rot helps break down the wax, soften the material, and speed up the fermentation process, increasing gas output by 30–50%.
3. **Improve gas production efficiency**. After pretreatment, the fermentation process inside the digester becomes more efficient, allowing the system to reach optimal temperatures faster and begin producing gas sooner. When combined with Gambo Biogas Fermenting Agent, the startup time can be cut in half, and gas production can increase by 50–100%. The gas output becomes more consistent and stable, reducing labor costs and saving time.
For more information or detailed guidance on biogas material pretreatment, feel free to visit our website or contact us directly.
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