Biogas pond spring management technology

1, first check whether the biogas digester has cracks in the winter, if it is found that frost, frozen cracks should be repaired in time, and then test the water, pressure test, to achieve watertight, no leakage before feeding. 2. The proportion of raw materials carbon and nitrogen should be appropriate when feeding, and the acid and alkali of fermented material will affect the normal gas production of the digester. 3. Prepare enough inoculum for feeding materials. The inoculum is best used in the old biogas. If there is no old biogas slurry, it can be replaced by sludge in the sewage ditch to accelerate fermentation. 4. The raw materials for biogas digesters must be stacked first, and the stacking time in spring should be longer, and the stacking time in summer can be shorter. Because the raw material for stacking is put into the biogas digester, the methane content in the digester rises linearly, accelerating the rate of gas production, and increasing the gas production.

Second, the normal operation of the biogas tank management technology last year

1, first check whether the digester body is frozen, whether there is damage to pipelines, barometers, etc., the cracked and frozen tanks should be repaired in time, and the damaged equipment parts must be promptly replaced. 2, timely in and out of materials. In order to ensure that the digester bacteria have sufficient food and normal metabolism, so that the gas production is long-lasting, it is necessary to constantly replenish fresh fermentation raw materials, replace some of the old materials, so as to do ground feeding and ground discharge. In the spring, it is generally advisable to enter and discharge 5% of the material every 7-10 days. In principle, the number of feeds should be as much as possible. The order is first-pass and backward-feed. When the material is discharged, the remaining liquid level should not be lower than the feed tube. And the upper edge of the discharge pipe, in order to avoid the biogas inside the tank run off from the feed pipe and the discharge pipe, after the material should be replenished in a timely manner. 3. Always measure and adjust the pH of the fermentation broth. Biogas bacteria adapt to growth in the neutral or slightly alkaline environment (PH value of 6.8-7.6), too strong acidity (PH value less than 6.6 or greater than 8) are harmful to biogas bacterial activity, so that gas production rate decreased, In order to accelerate gas production, the following adjustment measures may be taken: 1 adding appropriate amount of plant ash; 2 taking out some of the fermentation raw materials, adding equal or a little more nitrogenous fermentation raw materials and water. 3 mixing human, animal manure into the plant ash, together with Into the digester; 4 add the appropriate amount of lime clarified liquid (but can not add quicklime), and evenly mixed with the fermentation, to avoid the destruction of bioaerobic bacteria activity of alkali.

In addition, in order to ensure the normal fermentation and utilization of biogas, it is forbidden to add various high-dose fermentation inhibitors, especially highly toxic pesticides and various strong fungicides. Such as detergent powder water, soapy water, seed dressing items, medicine bottles, etc. can not enter the digester, once it will kill bacteria and microorganisms in the digester.