1. Biogas tank collection method: This is one of the common methods for collecting biogas. By constructing a biogas digester, organic waste (such as agricultural waste, livestock manure, etc.) is put into it, and the fermentation of microorganisms is utilized to produce biogas. There are two types of biogas digesters: fixed and mobile. Fixed biogas digesters are suitable for large-scale biogas production, while mobile biogas digesters are suitable for small-scale household or rural use.
2. Biogas well collection method: This method is suitable for areas where biogas digesters cannot be constructed or are inconvenient to construct. By digging biogas wells underground, organic waste is thrown into them, and the biogas produced by fermentation is collected through pipelines. The design of biogas wells needs to consider the disposal of waste and the collection of biogas to ensure efficient biogas generation and collection.
3. Biogas compression method: Biogas compression is the process of removing impurities from biogas, increasing methane content, and compressing it into liquid or high-pressure gas. This method can improve the storage density and transportation efficiency of biogas, making it easier to use and sell. Common biogas compression technologies include adsorption separation, membrane separation, and pressure friction.
4. Biogas purification method: Biogas contains a certain amount of impurities such as hydrogen sulfide, ammonia, and water vapor, which can affect the use and storage of biogas. Therefore, it is necessary to purify biogas and remove impurities from it. Common methods for biogas purification include dry adsorption, wet adsorption, membrane separation, and chemical absorption.
5. Biogas utilization technology: Biogas can be used in multiple fields such as power generation, heating, cooking, and lighting. Common biogas utilization technologies include internal combustion engine power generation, gas boilers, biogas stoves, and biogas lamps. These technologies can convert biogas into electricity, heat, and light to meet the energy needs of different fields.
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