First, to do ground feeding, ground discharge in order to ensure that there is sufficient food for biogas anaerobic bacteria, so that gas production is normal and lasting, it is necessary to constantly add fresh raw materials, so that ground feeding, ground discharge. When the biogas is fed, it should be fed after the material is discharged, so as to achieve a certain amount, so as to maintain the volume of the gas box. If the material level in the pool after discharge is lower than the upper and lower edges of the material, water shall be added in time so that the liquid level is higher than 15 cm above the upper edge to prevent air from entering the pool.
2. Stir frequently, increase gas production Biogas bacteria and the raw materials of the fermentation are in constant contact with each Other, and new nutrition is obtained to ensure normal fermentation. Without a digester, the resulting biogas is dissolved in the fermentation broth at a relatively high pressure due to the high pressure in the bottom layer, which is difficult to release. At the same time, the temperature difference between the upper and lower layers in the pool reaches 3°C, which also affects the gas production. Therefore, it is necessary to stir frequently to increase the gas production rate.
Third, we must always determine and adjust the pH of the fermentation broth in the digester. Biogas bacteria are suitable for growth under neutral or slightly alkaline conditions, that is, PH values ​​between 6.8 and 7.6. PH values ​​of less than 6.5 or greater than 8 are detrimental to biogas activity and reduce gas production.
Fourth, it is forbidden to add various kinds of substances harmful to methane bacteria 84 disinfectant, detergent powder, various fungicides, bricks, stones, sand, etc., resulting in methane tanks no longer produce gas or produce less gas. For a digester that has been damaged due to the above reasons, it is necessary to remove all the fermented materials in the tank, and then clean the digester with clean water before re-feeding.
Fifth, do winter insulation, strengthen the winter management of the northern region, the winter temperature is low, the temperature within the digester down to 10 degrees, you can not normally produce gas, so the winter should take effective insulation measures to maintain and increase the temperature within the digester .
6. The "regeneration" of the desulfurizer and the replacement of the desulfurizer must be performed at regular intervals after 3 months. The new desulfurizer can be replaced in due time.
VII. Dealing with gas production abnormalities in a timely manner
Insufficient raw materials, pesticide poisoning, acidification, and gas leaks can all lead to abnormal gas production. If abnormal gas production or gas production is not found, the cause should be promptly searched.
VIII. Biogas tank safety management measures It is very necessary to strengthen the safety management of biogas tanks. In recent years, due to the frequent occurrence of safety incidents due to poor management of biogas tanks, the inlet and outlet ports of biogas tanks must be capped, and the discharge from biogas digesters must be strictly prohibited. Ignition of the mouth or air pipe should be checked and the gas pipeline, switches, and connectors must be checked frequently to prevent air leakage and blockage.
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