How to solve the abnormal problem of the leachate pretreatment system?

The reasons and solutions for the abnormal problems in the leachate pretreatment system are summarized as follows:
Abnormal problem 1 of the leachate pretreatment system: The effluent contains small suspended particles
Main reasons: hydraulic load impact or long-term overload operation; Due to the short flow, the residence time is reduced, resulting in the flocs flowing out of the outlet weir before settling; The influent contains certain precipitated pollutant particles.
Solution: Adjust the inflow flow rate, reduce the impact of impact load, and overcome short flow; Adding chemical agents to improve the settling performance of certain difficult to precipitate sediment particles
Leachate treatment equipment
Abnormal problem 2 of leachate pretreatment system: pollution of effluent weir and uneven effluent
Main reasons: The effluent weir is affected by sludge adhesion, scaling, and other factors, resulting in clogging of the effluent weir, and even uneven discharge due to blockage of some weir outlets.
Solution: Clean the outlet weir.
Abnormal problem three of the leachate pretreatment system: blockage of sludge pipelines or equipment
Main reason: The sludge is prone to high levels of sediment and impurities.
Solution: Standardize the operation requirements of the sludge system and increase the frequency of hydraulic flushing.
Abnormal problem 4 of leachate pretreatment system: Frequent cleaning of self-cleaning filters
Main reasons: The selection of filter mesh size is too small, or the original filtrate contains a large amount of impurities such as hair and fibers. Solution: Replace the filter screen of the filter; Add filtration devices in the leachate collection tank; Clean the collection channels for leachate in the main factory building.
Abnormal problem 5 of leachate pretreatment system: Poor deodorization effect of pretreatment system
Main reasons: mostly due to inadequate sealing of various deodorization spaces; The drainage and discharge of the deodorization air duct are not smooth; The performance of the deodorization fan has decreased.
Solution: Check and improve the sealing of the deodorization space; Check the drainage collection and discharge of the deodorization air duct; Inspect the deodorization fan, analyze the cause of performance degradation, and restore it.