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What maintenance work should anaerobic reactor managers perform?
Release time:
2022-12-12 13:38
When we use anaerobic reactors When treating wastewater, we also need to clean and maintain the equipment. As is well known, the working environment of anaerobic reactors is relatively harsh. If the equipment is not cleaned daily, it is easy to malfunction.
Therefore, the following operations must be performed when using the equipment:
1. When the anaerobic reactor is running, the sludge load should be appropriate. In order to maintain the balance of the three stages of the anaerobic digestion process, balance the production and consumption of intermediate products such as volatile fatty acids, and prevent acid accumulation from causing a decrease in pH, the organic load of the influent should not be too high, generally not exceeding 0.5kgCODcr/(kgMLSS·d). By increasing the sludge concentration in the reactor, a higher volume load can be obtained while maintaining a lower sludge load. Generally speaking, the volume load of anaerobic digestion equipment is above 5kg CODcr/(m3·d), and even as high as 50kg CODcr/(m3·d).
2. The temperature of general industrial wastewater is difficult to reach 35°C and requires heating. Therefore, in order to save the energy required for heating, on the one hand, attention should be paid to insulation to prevent heat loss from the reactor as much as possible, and on the other hand, the role should be fully utilized. The characteristics of high sludge concentration in the reactor, and increase the sludge concentration in the reactor as much as possible, weaken the influence of temperature on the anaerobic reaction.
3. During the operation of the equipment, please ensure that the biogas is discharged promptly and effectively. The anaerobic digestion process must be accompanied by the production of biogas, which can stir and act on the sludge, and promote the mixing and contact of wastewater and sludge, which is its advantage. At the same time, the presence of biogas will also play a role similar to scum. When biogas overflows upwards, some sludge will be brought to the surface of the liquid, leading to the production of scum and an increase in suspended solids in the wastewater, deteriorating water quality. Therefore, a baffle plate and a gas collector should be installed to guide the biogas from the anaerobic digestion device, and there should be a sufficient sedimentation area near the effluent weir to ensure the effluent quality.
4. When the concentration of wastewater to be treated is high, a reflux operation method must be adopted. The reflux ratio is determined according to the specific situation. Effective reflux can not only reduce the influent concentration but also increase the influent volume to ensure the distribution of water flow in the treatment equipment. Even avoid short-circuiting.
5. When the concentration of suspended solids in the treated wastewater is very high, the wastewater should be properly pretreated, such as sedimentation, filtration, or flotation, to reduce the content of suspended solids in the influent and prevent clogging of the packing layer.
The above five points are points that should be paid special attention to when using anaerobic reactors. I hope the above introduction will be helpful to everyone.
Anaerobic reactor, chemical fiber wastewater, aerator
Practical application of IC tower in food processing wastewater treatment
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