Biogas digester daily safe operation management technology

Biogas digester daily safe operation management technology

Biogas is a flammable gas produced by the fermentation of microorganisms under anaerobic conditions. The main ingredients are methane and carbon dioxide. It also contains small amounts of gases such as carbon monoxide and hydrogen sulfide. Because it is flammable, explosive, and suffocating, it is important to strengthen day-to-day safety management.

Daily operation management technology

1. New ponds start with pure cattle and horse dung. The 8m3 digester requires 2m3 of cattle and horse dung. Before entering the pond, it is stacked 5-7 days outside the pond to enrich the bacteria and accelerate the start.
2. When the new pool is started, start with warm water. The water temperature of 30 °C -50 °C is appropriate, it is prohibited to use cold water to start, extend the start-up time.
3. After feeding, seal the cover of each activity as required, paying special attention to sealing the window of the sky to prevent air leakage.
4. The gas produced at the initial stage of startup is exhaust gas, which cannot be burned. The exhaust gas should be discharged for 7 days and discharged for more than 30 minutes per day.
5, before using the lamp, stove, should carefully read the instructions for use, standard operation. Pay attention to clean up the sundries on the lamp and stove regularly and keep it clean.
6, ground feed, ground discharge. The 8m3 digester should enter 20kg of fresh livestock and poultry excrement per day. How much or how much to enter, prohibit large discharge, so as not to affect gas production.
7, to strengthen the daily mixing, you can use the slag pump piston or wooden rod to stir the liquid for more than ten minutes, promote fermentation, increase gas production rate.
8, often observe the pressure changes, when the biogas pressure reaches 9 or more, should be timely gas or deflation, so as not to damage the pressure gauge and the pool body.
9, always check the interface, piping, appliances are sealed, damaged, aging, plugging, if found problems, timely maintenance.
10. In order to strengthen the overwintering management, appropriate amounts of raw materials such as cattle and horse dung should be added before the winter, and thermal insulation films should be placed on the outside of the pool to ensure normal production of gas in winter.

Safety precautions

1. During the discharge of exhaust gas from Xinchi, it is forbidden to test the fire at the air duct to prevent tempering and cause the explosion of the pool.
2. When clearing the pond, it must be conducted under the guidance of the biogas technician and it is prohibited to operate it alone. Need special attention is that after the emptying of the body immediately ventilated 1-2 days before entering the pool. Animal tests must be conducted before entering the pool. After the oxygen in the pool is sufficient, the pool is operated to prevent suffocation due to lack of oxygen. At the same time, ignition and smoking are strictly prohibited in the pool.
3. It is forbidden to enter various kinds of pesticides and harmful impurities into the pool so as not to kill the biogas microorganisms and affect the gas production.
4. The outdoor pipeline should adopt sun protection measures to extend the service life so as to avoid weathering of the pipeline and cause air leakage.
5, lights, stoves away from flammable items, so as not to cause a fire.
6. When gas leaks are found, shut off the gas source in time, open windows and doors, and prohibit the use of fire, smoking, and switching of electrical appliances to prevent fires.
7. It is forbidden to set fire within 5m of the biogas tank to avoid unsafe accidents.
8. During the daily discharge, smoking and ignition are prohibited.
9, burned waste yarn cover containing toxic substances, should be buried in the process, it is strictly prohibited to touch the wrong food.
10. When building pools, entering and discharging materials, special attention should be paid to safety, and timely protective measures should be taken to prevent humans and animals from falling into the pool.

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