The Lamella clarifier is constructed based on the "Shallow Pool Theory", which effectively increases the sedimentation area and significantly improves sedimentation efficiency. It is widely used in the field of wastewater treatment. The following are common problems and corresponding solutions in daily use to help you deal with problems in time and ensure the stable operation of the sedimentation tank.
1. The effluent contains a large number of suspended particles: When encountering hydraulic load impact or long-term overload operation, the short flow of water will shorten the residence time, causing the floc to cross the outlet weir with the water flow before settling is completed.
Solution: Evenly distribute the hydraulic load, adjust the water inlet and outlet facilities, reduce the impact of impact load, and reduce the phenomenon of short flow; add flocculant to enhance the flocculation and settlement performance of some difficult-to-settle suspended solids (such as colloids or emulsified oil particles) ; Reasonably regulate the remaining sludge load entering the primary sedimentation tank.
2. Sludge floating: The sludge residence time is too long, which can easily lead to the corruption of organic matter.
Solution: Ensure normal mud storage and mud discharge time; comprehensively check whether the mud discharge equipment is faulty; thoroughly clean the sludge on the inner wall, components and various dead corners of the sedimentation tank.
3. The torque of the mud scraper is too large: This is mostly caused by the excessive load of the mud scraper.
Solution: Drain the pool water regularly and check whether there are bricks, stones or loose parts blocking the scraper; replace damaged rings, scrapers and other parts in a timely manner.
4. The outlet weir is dirty and the water is uneven: Sludge adhesion, algae growth or scum stuck at the weir will make the outlet weir dirty, and even cause part of the weir to be blocked, causing uneven water output.
Solution: Frequently clean the dirt stuck at the weir mouth; add appropriate chemicals for disinfection to inhibit the growth and accumulation of sludge and algae at the weir mouth.
5. Mud scraper failure: The mud scraper stopped running due to factors such as excessive load.
Solution: shorten the mud storage time and reduce the amount of mud; check whether the mud scraper is stuck by masonry, tools or loose parts; promptly update damaged scrapers and other parts; prevent ice accumulation on the surface of the sedimentation tank; appropriately slow down the mud scraper Machine speed.
6. Blockage of sludge pipes or equipment: The sludge in the primary sedimentation tank has a high content of sediment-prone substances, and the diameter of the pipes or equipment is small and the frequency of use is low.
Solution: Add clearing means; increase the frequency of sludge equipment operation; optimize and improve sludge pipelines or equipment.
The above is a summary of common problems and solutions in daily use of Lamella clarifier. Detecting and solving problems in time is the key to ensuring that the treatment effect of the sedimentation tank reaches the standard and extending its service life. If the problem is not solved after handling it yourself, please contact us immediately. With professional knowledge and rich case experience, our after-sales technical team is always ready to solve your problems. It is our bounden responsibility to do our best to maintain the equipment.
