Hello, everyone. Today, a technical engineer from Works Chemical is teaching you how to solve the problem of pressing mud and not wetting filter cloth. Sludge dewater agent manufacturers believe that there are many reasons why the filter press does not press, from the working principle of the filter press, the whole equipment is provided by the feed pump filter power, filter cloth starts as the filter medium, when the filter cake is formed, it will be used as the filter medium, and finally achieve the solid-liquid separation state. The filter plate of the filter press acts as a support to form a filtration chamber.

Plate and frame filter press is widely used in the field of sludge dewatering, then what sludge dewatering agent or sludge filter aid should be used? In many cases, the use of improper agents will lead to adhesive tape paste filter cloth or side leakage problems. Printing and dyeing sludge, after physical and chemical treatment, influent COD is 800, after treatment is 200-300, it is difficult to debug. In the treatment of various types of sewage, the sewage will contain solid substances. For example. In the sewage of the municipal sewage plant, the solid substances contained are mainly colloidal particulate matter, which has a strong affinity with water. Dehydration can be very difficult if proper treatment measures are not taken.

So what kind of agent dehydrating effect is good for plate and frame filter press?

1. Drug selection problem. The optimum formulation can be determined according to different sludge combinations. Drug selection needs to be tested. It is recommended to use sludge dewatering agent for sludge dewatering. The specific test results shall prevail.

2. the amount of sludge modifier is determined, and the amount of sludge conditioning and sludge dehydrating agent is closely related. A small gradient test is required to determine the dosage.

3.and filter cloth selection or filter cloth permeability. If it is a new filter cloth filtering effect is no problem, if the filter cloth is polluted, it needs to be cleaned in time, otherwise it will also affect the dehydration effect.

In addition, in use, attention should be paid to the nature of the sludge, the variety of agents, the dosage and environmental conditions. When dosing, the correct dosing order is also important. Sludge dehydrating agent 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. The main components of sludge dewatering agent are inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent, etc. Sludge dewatering agent has the advantages of less dosage, low cost, breaking the bottleneck of sludge dewatering, achieving efficient concentration and dewatering, good treatment effect and high cost performance.