The use of sludge enhancers can indeed achieve deep dewatering of sludge. Sludge enhancer is a kind of chemical agent which can change the surface structure of sludge, reduce the solid surface load of sludge, reduce the specific surface area of sludge and destroy the structure of bacteria. Its main components usually include inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent and so on. The following is a detailed analysis of the deep dewatering of sludge using sludge synergists:
Principle of action of sludge synergist
Sludge enhancer achieves deep dewatering of sludge by:
Change the colloidal structure of the sludge to make it easier to dehydrate.
Reduce the water binding force in sludge and release more free water.
Destroy the microbial cell structure in the sludge and release the water in the cell.
2. The use effect of sludge synergist
Significantly reduce moisture content: The combination of sludge enhancer and dewatering equipment (such as plate and frame filter press) can significantly reduce the moisture content of sludge. For example, the water content of the mud cake can be reduced by 35% to 55% to achieve deep dehydration of the sludge.
Improve dehydration efficiency: sludge synergists can shorten the dehydration cycle and improve the operating efficiency of dehydration equipment.
Cost reduction: Traditional water treatment agents may need to add lime to achieve dehydration, while sludge synergists do not, thus avoiding the use of lime costs and corrosion problems to the equipment.
Environmental benefits: The use of sludge synergists is conducive to the subsequent treatment of sludge, such as incineration, brick making and composting, which reduces the pollution to the environment.
Precautions for the use of sludge synergists
Agent selection: The appropriate sludge synergist should be selected according to the nature of the sludge and dehydration requirements.
Dosage of agents: Excessive agents may lead to poor dehydration effect or increase treatment costs, so the dosage of agents should be strictly controlled.
Equipment matching: the matching of sludge enhancer and dewatering equipment is also very important, and dewatering equipment that can adapt to the characteristics of sludge enhancer should be selected.
Operating specifications: When using sludge enhancers, the operating procedures should be followed to ensure that the deep dehydration of the sludge is achieved safely and efficiently.
In summary, the use of sludge synergists is an effective way to achieve deep dewatering of sludge. Through reasonable selection of agents, control of dosage, matching equipment and standard operation, the dewatering efficiency and quality of sludge can be significantly improved, the treatment cost can be reduced, and the sludge can be harmless, reduced and reused as resources.