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Process flow of laboratory sewage treatment equipment: Process flow of laboratory sewage treatment equipment:

Author: Source: Time: 2019-12-13 Category: News

I believe that everyone knows the laboratory sewage treatment equipment introduced by Xiaobian before. Today, Xiaobian will take you to explain the specific analysis of the process of the laboratory sewage treatment device:

First introduced are the five major process flows of the laboratory sewage treatment device:

1. Neutralization device: Add NaOH to the wastewater to adjust the pH value to 8.5--9.2 to make the Cr3 +, Cd2 +. Pb2 +, Mn2 + ions and NaOH react to form a precipitate in the wastewater to achieve the purpose of removing heavy metal ions. After that, the PH value was adjusted back to 6-9, and the NaOH and HCI dosages were automatically controlled.

2. Coagulation and sedimentation: Adding a certain amount of CJI water purification agent will produce a large amount of coagulated flocs in the sewage. After precipitation, the workload of subsequent processes is reduced, and the removal rate of COD and suspended solids is improved.

3. Laboratory sewage treatment equipment one by one filtration device: the use of quartz sand packing layer to trap and remove suspended solids and other fine materials that have not been separated by air flotation, regular backflush, and ensure filtration. The effect is stable.

4. Activated carbon decoloring device: Use the absorption capacity of activated carbon to further process it to remove chroma and odor in water. Ensure that the effluent meets discharge standards.

5.Ozone generator (disinfection) for laboratory sewage treatment equipment: For large intestine, bacillus, salmonella, etc. can be disinfected by ozone machine.

Secondly, it introduces the process analysis of laboratory sewage treatment equipment:

(1) The experimental wastewater treatment process uses "coagulation-precipitation-filtration-activated carbon adsorption-disinfection".

(2) The sludge treatment process uses "concentration-storage-transport".

(3) Emergency tanks and sewage collection and treatment systems are set up with emergency treatment measures. When an accident occurs, they are discharged to the accident tank, and then a small flow of pump is used to evenly enter the treatment system to ensure the stable operation of the system.

(4) The experimental sewage enters the regulating sump after intercepting suspended matter through a mechanical grille fence. A mixer is set up in the sump to prevent sedimentation and regulate water quality. Then it is lifted from the -stage lift pump to the-body water purifier. The integrated water purifier is provided with coagulation, sedimentation and filtration functions, and flows into the intermediate water tank after being processed by the integrated water purifier. The intermediate water tank provides water absorption conditions for the secondary lift pump. After being pressurized, it enters the activated carbon adsorption tank. The water after adsorption treatment enters the contact disinfection tank for disinfection, and then flows into the artificial lake for greening.

Finally, I will introduce the process details of laboratory sewage treatment equipment.

Accident automation control

Upper limit of accident tank liquid level Set the upper limit of accident tank liquid level. When the liquid level is higher than this set value, the two accident lift pumps will start at the same time if they are in the automatic control position, and the accident tank liquid level on the computer screen will also flash to remind the staff on duty; when the liquid level is lower than the accident tank, It will stop automatically after the lower limit. Set the middle limit of the accident tank liquid level. When the liquid level is higher than this set value, the two accident lift pumps will start when both of them are in the automatic control position; when the liquid level is lower than the lower limit of the accident pool, it will automatically stop.

2. Lower limit of the accident tank liquid level

Set the lower limit of the accident tank liquid level. When the liquid level is higher than this set value, if the two accident lift pumps are in the automatic control position, the system will automatically stop the running water pump.

3.ORP setting

Set the upper limit of redox and the lower limit of acid and alkali in contact with the sewage in the disinfection tank. When the oxidation-reduction property of the sewage is greater than this set value or the acidity and alkalinity of the solution are outside the set value range, the electric valve will be automatically opened, and the sewage that has not reached the standard in the disinfection tank will be discharged into the accident tank for further treatment. When the redox property of sewage is less than this set value and the acidity and alkalinity of the solution are within the set value range, the electric valve will be closed.



   


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