In view of the problems of high organic matter content and high water content after mud compaction in sewage treatment plants, the problems can be solved from the following aspects:
One. Optimization of sludge treatment technology
Increasing press pressure: In the process of sludge dewatering, increasing press pressure can significantly reduce the water content of filter cake. By using high-pressure dehydration technology, such as diaphragm pressing, the moisture content of sludge cake can be further reduced.
Optimization of flocculation conditions: the flocculation effect directly affects the dewatering performance of sludge. The flocculation conditions should be re-evaluated, including selecting the appropriate flocculant, optimizing the dosage, adjusting the stirring intensity and settling time, so as to significantly improve the flocculation effect of sludge and reduce the water content of mud cake.
Use of sludge conditioner: sludge conditioner can change the surface structure of the sludge, reduce the solid surface load and specific surface area of the sludge, destroy the bacterial structure, so as to improve the dewatering performance of the sludge. The moisture content of sludge can be reduced effectively by selecting suitable sludge conditioner for pretreatment.
Two. Strengthen sludge pretreatment
Reduce organic matter content: For the sludge with high organic matter content, the organic matter content can be reduced through pretreatment measures such as grating and sand settling tank to reduce the burden of subsequent treatment.
Ensure adequate settling time: Too short settling time may result in insufficient discharge of water in the sludge, thereby increasing the water content of the mud cake. Therefore, it should be ensured that the sludge has sufficient settling time to improve its dewatering performance.
Three, improve the dehydration equipment
Select the right dewatering equipment: Select the right dewatering equipment according to the nature of the sludge and the treatment needs. For sludge with high moisture content, efficient dewatering equipment such as high-pressure sludge filter press can be considered.
Maintain and upgrade the dewatering equipment regularly: including cleaning the filter, checking the sealing performance and other maintenance work, as well as replacing more efficient dewatering components or adopting more advanced control technology and other upgrade measures to ensure the efficient operation of the equipment.
Iv. Comprehensive consideration of environmental factors
Adjust environmental factors such as temperature and pH value: environmental factors such as temperature and pH value may affect the dewatering performance of sludge. In actual operation, these factors should be fully considered and corresponding measures should be taken to adjust and optimize.
Focus on environmental protection and sustainability: in the selection of agents and equipment should consider its impact on the environment and subsequent sludge disposal methods, etc., to avoid the waste of other energy or secondary pollution caused by the reduction of sludge.
In summary, to solve the problems of high organic matter content and high moisture content after sludge compaction in sewage treatment plants, it is necessary to optimize sludge treatment process, strengthen sludge pretreatment, improve dewatering equipment and comprehensively consider environmental factors. Through the implementation of these measures, the moisture content of sludge can be effectively reduced and the dewatering efficiency of sludge can be improved.