Case Introduction of Xinjiang New District Sewage Treatment Plant in Yingtan City

Shandong Hechuangzhiyun Environmental Protection Equipment Co., Ltd. is a supplier of water treatment chlorination and dosing system solutions. What you are currently browsing is the sewage treatment plant project in Xinjiang New District, Yingtan City, which our company participated in the construction of. In this project, our company provided two sodium hypochlorite generators, PAM dosing equipment, PAC dosing equipment, and two carbon source dosing devices.

Equipment working principle:

1. In saline solution, there are several types of ions such as sodium ions, hydrogen ions, hydroxide ions, and chloride ions. According to electrolysis theory, when connectedelectrodeAt a constant voltage, the electrolyte solution undergoes conductivity due to the movement of ions and electrode reactions. At this time, anions such as chloride ions and hydroxide ions move towards the anode, while cations such as sodium ions and hydrogen ions move towards the cathode and discharge on the corresponding electrodes, thereby undergoing redox reactions and generating the corresponding substances.

2. The electrolysis process of saline solution can be expressed by the following reaction equation:

NaCl =Na⁺ +Cl^-

Anode electrolysis reverse use:H2O=H⁺+OH^- 2Cl^- -2e^- →Cl₂↑

Cathodic electrolysis reverse use:2H^-+2e^-→H₂↑

3. In a diaphragm free electrolysis device, the electrolyte and the electrolytic product hydrogen gas escape from the solution, while the rest are in an electrolysis cell. Due to the stirring effect of hydrogen gas on the solution during the escape process, a series of chemical reactions occur between the electrolytic products between the two poles. The reaction equation is as follows:

2NaCl+2H₂O→2NaOH+H₂↑+Cl₂

2NaOH+Cl₂→NaClO+NaCl+H₂O

4. In the electrolysis of saltwater without a diaphragm, the overall equation of the solution is obtained by adding the two reaction equations listed above.

NaCl+H₂O+2F→NaClO+H₂↑

among which

F is the Faraday electrolysis constant, with a value of 26.8 ampere hours or 96487 coulombs.

1The equipment's tap water inlet is connected to the tap water pipe, and the tap water pressure requirement is>0.2Mpa

2Connect the equipment discharge outlet to the discharge pipe/ditch

3Connect the hydrogen exhaust port of the equipment to the outside

4Equipment dosing metering pump dosingpipeConnect the dosing point

5Device access380VACThree phase four wire power supplyDo not access itWrong power supply, power load meets requirementsThe following requirements:

6、The equipment needs tostoreIntegrate the dosing system with the host part

A）Drug outlet of host equipmentconnectSodium hypochlorite storageTank inlet liquid口

B）Sodium hypochlorite storage tank heightIn the middleLow liquid levelAccording to the circuitDrawing connection within the control system of the host

C）Power supply control circuit related to sodium hypochlorite dosing pumpAccording to the circuitdrawingControl of connecting the hostsysteminside.

D) Connect the sodium hypochlorite discharge to the drainage ditch

7. Connect the equipment salt water tank with the main unit

A) Connect the softened water of the host to the inlet of the salt solution tank

B) Connect the concentrated salt water outlet of the salt dissolving tank to the generator host

C) Low liquid level in salt tankAccording to the circuitDrawing connection within the control system of the host

D) Overflow from the salt dissolution tank leads to the drainage ditch