In the process of industrial wastewater and domestic sewage treatment, a large amount of sludge will be produced. The moisture content in the sludge is as high as 95% to 97%, resulting in a huge volume of sludge, and some of the harmful substances have caused great harm to environmental protection and production. Therefore, the method of reducing the moisture content of sludge is very needed.
Works Chemical- Sludge conditioner, sludge dewatering synergist manufacturer
However, due to the small particles of the sludge, the charge leads to the mutual exclusion of the particles, and the strong binding force of the particles and water, resulting in a large specific resistance of the sludge and poor dehydration performance, which brings many problems to its treatment and disposal. In this small edition of Nuoguan Environmental protection to introduce a method of reducing the moisture content of sludge.
Sludge conditioner is a chemical agent that 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. The main components are inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent and so on. Combined with the plate and frame mud press, the sludge moisture content can be reduced from more than 90% to 40%-60%, and the sludge reduction can be fully realized.
(Method for reducing sludge moisture content) - The main components of the sludge conditioner change the surface properties of the sludge through synergistic action, reduce the specific surface volume of the sludge, destroy the cell wall and cell membrane, release intracellular water, and then remove free water, bound water, capillary water and intracellular water in most biochemical sludge.
The sludge is not modified by effective chemical conditioning, pressed to a certain extent can not be deformed, and it is difficult to bind the water pressure under the action of large pressure. On the basis of effective conditioning, high pressure can accelerate the dehydration speed and improve the dryness after pressing.