Sludge conditioner is a chemical agent that can achieve deep dehydration of sludge, the following is a detailed analysis of sludge conditioner and its realization of deep dehydration of sludge:
Definition and composition of sludge conditioner
Sludge conditioner, also known as sludge deep dehydration conditioner, is a chemical agent that can change the surface structure of the sludge, reduce the surface load of the sludge solid and the specific surface area of the sludge surface, and destroy the bacterial structure. It contains water purification agent, organic polymer, sludge stripping agent, sludge surface treatment agent, wall breaking agent degreaser, sludge surface structure modifier and other components.
Two, the principle of sludge conditioner
The main components of the sludge conditioner can change the surface properties of the sludge, reduce the specific surface area of the sludge, destroy the cell wall and cell membrane to release intracellular water, and then remove most of the free water, bound water, capillary water and intracellular water in the biochemical sludge.
Application of sludge conditioner in sludge deep dehydration
Application: sludge conditioner is widely used in domestic sewage treatment plants, printing and dyeing plants, electroplating plants, food factories, slaughterhouses and other places that need to treat sludge.
Usage: The sludge conditioner is added to the aqueous sludge and stirred evenly, and then mechanical dehydration is carried out. The amount of sludge conditioner added is usually determined according to the nature of the sludge and water content, and the general addition amount is 20%-45% of the absolute dry sludge amount, and the reaction time is 10-20 minutes. After that, the reacted sludge is pumped into the high pressure plate frame filter press for filtering to achieve deep dehydration.
Dewatering effect: After the use of sludge conditioner, the water content of sludge cake can be reduced to 40%~60%, or even lower. This greatly reduces the volume and weight of the sludge, facilitating subsequent transportation and disposal.
4. Advantages of sludge conditioner
Organic high efficiency: sludge conditioner can replace inorganic salt products, reduce sludge increment, and increase the proportion of organic matter in sludge, which is conducive to subsequent garden greening projects such as composting.
Equipment friendly: do not use acid inorganic salts, avoid equipment corrosion and filter cloth fouling, prolong the service life of the equipment. At the same time, no excess Cl ions will remain in the filtrate and sludge to avoid the impact on the biochemical system.
Easy operation: The use of sludge conditioner is simple and convenient, and it can be followed by dehydration treatment by adding it to the sludge and stirring it evenly.
Development trend of sludge deep dewatering technology
With the increasingly strict environmental requirements and the continuous progress of sludge treatment technology, sludge deep dehydration technology will be more widely used and developed. In the future, the sludge conditioner will be more efficient, environmentally friendly and economical, and combined with other sludge treatment technologies to form a more perfect sludge treatment system.
In summary, sludge conditioner is one of the effective means to achieve sludge deep dehydration. Through the rational use of sludge conditioner, the moisture content of sludge can be significantly reduced, the volume and weight of sludge can be reduced, and the subsequent sludge treatment and disposal can be facilitated.