Underground acid-base neutralization tank

Underground acid-base neutralization tank

Integrated acid-base neutralization tank, acid-base neutralization equipment, laboratory wastewater treatment equipment

（1） High school laboratory acid-base neutralization pool acid-base neutralization agent 1. Solid: flake, solid, industrial grade, purity 96, about 25kg per bag. 2. Hydrochloric acid: GB 320-93 industrial synthetic grade I product, content ≥ 31.0, about 25 liters per barrel.

（2） High school laboratory acid-base neutralization tank coagulation and sedimentation agent

1. Polyaluminum chloride (PAC): The content of aluminum chloride (Al2O3) is about 29-30%, and each bag weighs about 25kg.

2. Polyacrylamide (PAM): Molecular formula (C3H5NO) n (IV) Preparation of various drugs 1. Solution preparation; Mix the solid with water in a ratio of 1:30 to dissolve it;

3. Preparation of polyaluminum chloride (PAC) solution: Mix PAC with water in a ratio of 1:10 to dissolve;

4. Preparation of Polyacrylamide (PAM) Solution: Mix PAM with water in a ratio of 1:1000 to dissolve;

5. Hydrochloric acid: does not require dilution, can be used directly;

6. Process flow of comprehensive wastewater treatment equipment for middle school laboratory acid-base neutralization tank.

The entire wastewater treatment process is controlled by an automatic control system, and the neutralization regulation system is equipped with a float level control instrument. The pump stops automatically at low liquid levels and starts automatically at high liquid levels, which can basically achieve unmanned operation.

Process Characteristics

1. Using technologies such as neutralization precipitation, chemical oxidation, ozone oxidation, and multi-media filtration to treat various pollutants in wastewater;

2. Real time monitoring and control of wastewater quality changes and treatment processes using microcomputer programs, achieving 24/7 automatic operation without the need for dedicated personnel on duty;

3. Accurately control the dosage using a pH meter and metering pump, and equipped with liquid level control, alarm, and sludge discharge devices;

4. The oxygenator used ensures sufficient gas water contact and reaction;

5. Easy to operate, stable in operation, long in service life, and low in operation and maintenance costs;

6. Small footprint, can be placed indoors or outdoors according to different situations;

7. Tailored design and manufacturing can be carried out according to different requirements of users. The overall process flow of the project is as follows:

8. Precautions for using laboratory comprehensive wastewater treatment equipment

(1) Self priming pumps should be regularly cleaned of debris to prevent blockages.

(2) After using the equipment for a period of time, sludge treatment should be carried out by opening the vent valve to discharge the sediment into the sludge tank.

(3) Before use, check the power supply, medication level, and equipment body for any abnormalities.

(4) Before using the equipment, it is necessary to check whether the electrical appliances of the equipment system are normal until they are qualified.

(5) The equipment user must establish a regular maintenance system and a drug safety management system.

　　Underground acid-base neutralization tank

1. Overview of Acid Base Neutralization Tank in Middle School Laboratory Based on the information provided by the owner, project planning, and relevant design specifications, the design water volume of this project is 2000L/d. After treatment, the sewage meets the relevant requirements of Class III standard of "Comprehensive Wastewater Discharge Standard" (GB8978-1996) and "Water Quality Standard for Sewage Discharge into Urban Sewers" (CJ 343-2010). The wastewater is treated by the sewage treatment station, meets the standards, disinfects, and discharged into the urban sewage pipe network. On behalf of the owner, our company has conducted a careful analysis of the quality of the wastewater and, based on our previous experience in similar wastewater treatment projects and extensive research on industry data, has developed the "Laboratory Wastewater Treatment Project Design Plan" for review by relevant experts and selection by the owner.

Design Basis, Principles, and Scope

2.1 Design Basis for Acid Base Neutralization Tank in Middle School Laboratory

1. Water Pollution Prevention and Control Law (promulgated in May 1984, revised in 1996, revised in 2008, and implemented on June 1, 2008);

2. Standard for Environmental Noise in Urban Areas (GB 3096-2008);

3. Code for Design of Outdoor Drainage (GB 50014-2006) (2014 edition);

4. Code for Design of Low Voltage Distribution Equipment and Lines (GB 50054-1995);

5. Code for Construction and Acceptance of Industrial Automation Instrumentation Engineering (GB 50093-2002);

6. Comprehensive Wastewater Discharge Standard (GB8978-1996)

7. Water Quality Standards for Sewage Discharged into Urban Sewers (CJ 343-2010)

8. Environmental Engineering Manual (Water Pollution Prevention and Control Volume)

9. Relevant requirements in the "Medical Pollutant Emission Standards" (DB37/596-2006) standard

2.2 Design Principles

In the design of the laboratory sewage treatment system, the principles of technical applicability, targeted process measures, reliable and stable system, easy to start and stop operation, comprehensive savings in one-time investment and daily operating costs, maximum reduction of site occupation area, and maximum use of existing treatment facilities are followed. Based on a comprehensive analysis of similar domestic and international sewage treatment technologies, especially combined with practical experience of similar projects, this project plans to adopt the process of "acid-base neutralization regulation+precipitation+heavy metal capture+photocatalytic reaction+microelectrolysis+disinfection+multi-media filtration" for sewage treatment. Each step of the process has been thoroughly compared with multiple options to obtain an optimized process.

2.2.2 Design Principles

1. Taking into account various factors, adopt mature processes with low investment, stable operation, low operating costs, and good treatment effects;

2. Adopt specialized measures based on the characteristics of wastewater to ensure the removal of harmful components, and fully consider the anti-corrosion measures of pipelines, equipment, and structures;

3. Choose instruments and equipment with stable performance, easy maintenance, reasonable price, durability, and high processing efficiency;

4. The layout of the structures should be reasonable, compact, aesthetically pleasing, and minimize the use of land space as much as possible;

5. Have a certain impact load capacity for water quality and quantity;

6. Fully consider noise, odor, etc. in the design to prevent secondary pollution and avoid causing new pollution to the surrounding environment;

7. Implement automated control, improve stability, and ensure that the effluent quality meets the standard.