Safety measures of sewage treatment workshop

1. Safety knowledge of sewage treatment workshop

Safety knowledge of sewage treatment workshop 1. What safety measures should sewage treatment plants pay attention to?

Matters needing attention in safe operation of sewage treatment plant

1. Safety precautions for operators entering wells and pools

(1) Well pond operators must receive safety technical training, know the basic methods of manual first aid, and know how to use protective equipment, lighting equipment and communication equipment.

(2) Those suffering from severe chronic diseases such as deep myopia, hypertension and heart disease and unhealed wounds are not allowed to engage in operations such as wells and pools.

(3) Operators must wear necessary protective articles when they go down the well.

(4) When someone is working underground, there should be two people on inoue for monitoring.

(5) The time for each underground operation shall not exceed 1 hour.

2. Safety measures for sump of pump house

The function of the storage tank is to adjust the imbalance between the inflow and pumping capacity of the pump, so as to avoid frequent start-up of the pump. Generally, it is required that the effective volume of the sump is not less than the pumping capacity of the maximum pump for 5 minutes.

When the sewage contains toxic, harmful or inflammable and volatile substances, the sump should be closed, and ventilation holes should be set at two points with the largest plane distance of the sump to make the air above the surface of the sump form the maximum convection, and an exhaust pipe for high-altitude discharge should be installed at a suitable position, and a fan should be installed for forced ventilation if necessary, and sometimes toxic gas signs should be set at the parts that operators must pass during inspection.

3. Prevention of harmful gas poisoning in sewage treatment plant

There may be gases harmful to human body in various structures of external resistance, sewage pipelines and treatment plants. These harmful gases have complex components and various types, which can be divided into toxic and harmful gases and flammable and explosive gases according to different hazard modes. Toxic and harmful gases mainly cause harm to human body through respiratory organs, causing poisoning incidents.

2. What matters should be paid attention to in the safety inspection of sewage treatment workers?

1. 1 operational management requirements 1. Operation and management personnel must be familiar with the operation requirements and technical indicators of the processing technology, facilities and equipment of our factory.

2. Operators must understand the processing technology of our factory and be familiar with the operation requirements and technical indicators of the facilities and equipment in this position.

3. Each post should have process system network diagram and safety operation procedures. , and should be displayed in obvious parts.

4. The operation manager and operators shall patrol and check the operation of structures, equipment, electrical appliances and instruments as required.

5. Operators of each post shall keep running records on time. The data should be accurate.

6. When the operator finds that the operation is abnormal, he shall promptly deal with it or report it to the competent department.

7. All kinds of mechanical equipment should be kept clean, without water leakage and air leakage.

8. Weirs and walls of water treatment structures should be kept clean and intact.

9. Check, add or replace lubricating oil or grease regularly according to the requirements of different mechanical and electrical equipment.

1.2 Safety operation requirements

1. Operators and maintenance personnel in each position must undergo technical training and production practice, and can only take up their posts after passing the examination.

2. After starting the equipment, you should make preparations for starting.

3. When the power supply voltage is greater than or less than 5% of the rated voltage, it is not appropriate to start the motor.

4. When the operator turns on and off the electrical switch, it should be carried out in accordance with the electrician's operation procedures.

5. All kinds of equipment maintenance must be cut off, and maintenance signs should be hung at the switch before operation.

6. In rainy and snowy weather, operators should pay attention to anti-skid when patrolling or working on structures.

7. Clean up the mechanical and electrical equipment and the surrounding environment. It is forbidden to wipe the running parts of the equipment, and the washing water shall not splash on the live parts and lubricating parts of the cable head and motor.

8. Operators in each position should wear complete labor protection articles and take safety precautions.

9. Protective life-saving facilities and articles shall be provided at obvious positions of the structure.

10. It is forbidden for non-post personnel to switch the electromechanical equipment of this post.

1.3 maintenance requirements

1. Operation managers and maintenance personnel should be familiar with the maintenance regulations of mechanical and electrical equipment.

2. The structure of the building and various gate valves, guardrails, ladders, pipes, etc. Regular inspection, maintenance and anti-corrosion treatment should be carried out, and damaged lighting equipment should be replaced in time.

3. Check and fasten the connectors of various equipment frequently, and replace the wearing parts of the coupling regularly.

4. All kinds of pipeline gate valves should be regularly tested for opening and closing. 5. Regularly check and clean the electrical control cabinet and test its technical performance.

6. Regularly check the limit switches, manual and electric interlocking devices of electric gate valves.

7. After stopping the pump every time, check the sealing condition of the packing or oil seal and make necessary treatment. Fill or replace fillers, lubricating oil and grease as required.

8. If there is a device with a wire rope, the wear of the wire rope is greater than 10% of the original diameter, or one of them has been broken, it must be replaced.

9. In addition to routine maintenance, all kinds of machinery and equipment should be subject to major, medium and minor repairs according to design requirements or manufacturer's requirements.

10. When repairing various mechanical equipment, technical requirements such as coaxiality and static balance must be guaranteed according to the requirements of the equipment.

1 1. Lubricating oil, grease, laboratory wastewater and other sundries replaced by maintenance equipment shall not be thrown into sewage treatment facilities.

12. When maintaining mechanical equipment, it is not allowed to connect the temporary power cord at will.

13. The testing, maintenance and cycle of lightning protection and explosion-proof devices for buildings and structures shall comply with the regulations of the electric power and fire department.

14. Protective articles such as fire fighting facilities should be inspected and replaced regularly.

3. What aspects of safety should sewage treatment plant operators pay attention to?

The following is the basic process of sewage treatment plant:

The sewage treatment technology of modern sewage treatment plants can be divided into primary, secondary and tertiary treatment according to the treatment degree.

Primary treatment mainly removes suspended solid pollutants from sewage, and most physical treatment methods can only meet the requirements of primary treatment. After primary treatment, BOD can generally be removed by about 30%, which can not meet the discharge standard. Primary treatment belongs to the pretreatment of secondary treatment.

The secondary treatment mainly removes colloid and dissolved organic pollutants (BOD, COD) in sewage, and the removal rate can reach over 90%, so that the organic pollutants can meet the discharge standards.

Tertiary treatment, further treatment of refractory organic matter, soluble inorganic matter such as nitrogen and phosphorus that can lead to eutrophication of water body. The main methods include biological nitrogen and phosphorus removal, coagulation and sedimentation, sand ratio, activated carbon adsorption, ion exchange and electrodialysis.

The whole process is as follows: the raw sewage after coarse grid removal is lifted by the sewage lifting pump, and then enters the grit chamber, and the sewage after sand-water separation enters the primary sedimentation chamber, which is a primary treatment (that is, physical treatment). The effluent from the primary sedimentation tank enters biological treatment equipment, including activated sludge method and biofilm method. (The reactors of activated sludge process include aeration tank and oxidation ditch, etc. ), biofilm method includes biological filter, biological turntable, biological contact oxidation method and biological fluidized bed). The effluent from biological treatment equipment enters the secondary sedimentation tank, and the effluent from the secondary sedimentation tank is discharged after disinfection or enters the tertiary treatment. The primary treatment ends here as secondary treatment, and the tertiary treatment includes biological nitrogen and phosphorus removal, coagulation and precipitation, sand filtration, activated carbon adsorption, ion exchange and electrodialysis. Part of the sludge in the secondary sedimentation tank flows back to the primary sedimentation tank or biological treatment equipment, and part of it enters the sludge concentration tank and then enters the sludge digestion tank. After dehydration and drying equipment, the sludge is finally utilized.

4. What basic knowledge should sewage workers master?

As a sewage treatment worker, the main task is to ensure the normal operation of the whole sewage treatment system and ensure that the sewage reaches the standard. As a sewage treatment worker, you should be familiar with all technological processes within your jurisdiction, understand the main functions of equipment in each section, and be familiar with the indicators of sewage section.

Specifically, perform the following operations:

1, often check and observe the sewage treatment site, and carefully make relevant records to ensure the accuracy and authenticity of the recorded data.

Sex;

2. Regular simple maintenance of sewage treatment equipment to ensure that the equipment meets the basic needs of sewage treatment;

3, can basically solve some emergencies and avoid serious consequences;

4. Measure the water quality of sewage outlets and key sections on time, and grasp the basic operation of sewage treatment stations in time.

5. Knowledge that sewage treatment operators must know.

Mainly broken valves, without professional knowledge, but with maintenance experience, they will be more competitive. If you want to be better, it is enough to learn the knowledge of lighting and electricity by yourself. Dry testing should be at least junior college, and the professional needs of learning are related to testing; There are tricks for debugging in junior high school, but most of them still require high school education or above. Being able to weld or install electrical appliances can increase competitiveness and require low and high professional knowledge. Generally, a company with strong design does not require high professional knowledge, as long as it is debugged according to the design instructions.

If the design is weak, it depends on the debugger. Such a debugger supports at least half of the design, and this position sometimes requires laboratory knowledge; Generally speaking, dry construction requires college degree or above, and professional knowledge requires experience in civil construction, equipment installation and electrical installation. Generally, working in a construction and installation company is enough; At least junior college in design, which is divided into architectural specialty, electrical specialty and craft specialty. If you don't have enough education, you can do the operation first and then change the debugging or construction. If you have a strong ability, you can even change the design, but this may be less and less.

Generally, small companies are designed, constructed and debugged by one person, while large and medium-sized companies are separated. If they don't have enough education, they can find a large company to operate or a medium-sized company to debug, and small companies also have opportunities. However, small companies generally have no business, and often when there is no project, they may lose their jobs when there is no construction and commissioning. In terms of treatment, if the general operation is less than or equal to the laboratory knowledge, you need to know the following related knowledge: environmental engineering, environmental engineering microorganisms, chemistry, laboratory analysis, machinery, water supply and drainage knowledge and so on.

It depends on the nature of your job. If you are only an operator of sewage treatment, you need to know more. If you are a technician of an environmental protection company, you need to learn more. If you have a degree, I feel that the requirements should not be great. If you are above high school and are willing to study, you can learn well after a period of study. You can apply for the self-study exam and get a degree. If you just go to the sewage treatment station of a large sewage treatment plant or enterprise, you can go to the labor bureau to obtain the qualification certificate of sewage treatment workers. Before the exam, there will be relevant training, which is enough.