Septic tank cleaning requirements?

What are the requirements for septic tank cleaning? The following is a detailed introduction of Zhong Da Consulting for your reference.

1) The facilities of manure transfer station (yard and wharf) are in good condition and clean. The transferred fecal sewage should be sealed and stored in septic tanks. Septic tanks should meet the requirements of anti-leakage, anti-odor diffusion and anti-fly, and set up fire and explosion-proof safety facilities.

2) The excrement in the septic tank shall be transported away in time and shall not overflow.

3) The dung pipe should be intact and unblocked, and the gate valve should be tight without damage and leakage.

4) During transshipment, feces shall not pollute the water body and the operation site. The sewage from the washing operation site shall be properly treated and then discharged into the sewage pipe network or collection pool, and shall not be directly discharged into the nearby water body.

5) When transferring the manure from the manpower collection vehicle to the motor vehicle, the transfer operation should be closely connected, and the manure tank, manure bucket and hand-propelled manure vehicle should not be parked on the main road at will.

6) Be careful when discharging feces, and don't sprinkle feces on the ground around the discharge port. After the operation, the dung unloading port and the operation site should be cleaned in time.

7) The excrement transfer station (yard and wharf) should have fly killing measures. Within the visual range, there are no more than 3 flies/time, no maggots, and the odor does not exceed Grade 4.

operation sequence/order

1. Open the septic tank cover with an iron hook, and then stir up the debris caking layer in the septic tank with a long bamboo pole (8m).

2. Drive the dung suction truck to the construction site, put on dung suction hoses (5 meters long, 3) and put them into septic tanks.

3. Turn on the switch of the dung suction car to suck out the dung until the dung turning group in the septic tank is sucked up to prevent the clothes of the construction site and passers-by from being dirty.

4. Cover the manhole cover of septic tank, and rinse the work site and all tools with clean water.

5. Clean it once a year, and the primary pool will remove 90%, the secondary pool will remove 75%, and the tertiary pool will remove all hard surfaces.

6. After cleaning the septic tank, visually observe that there is no sediment floating on it in the well, and the entrances and exits are unblocked to prevent sewage from overflowing the ground.

7. When the manhole cover of septic tank is opened for 10 ~ 15 minutes, personnel are not allowed to stand by in the pool to prevent personnel from being burned by methane fire.

People should not work in the swimming pool to prevent people from being poisoned or falling into the water.

9. After the manhole cover of septic tank is opened, the staff can't leave the site. After cleaning, cover the manhole cover to prevent pedestrians from falling into the well.

Construction scheme

A, operating personnel specification

1. Organize employees to enter the work area, familiarize themselves with the work site, divide the work area, conduct on-site safety operation training, give early warning of possible safety accidents, and formulate the "One Belt and Five" system according to the company's construction safety guarantee (one safety officer is responsible for supervising the work safety of five workers).

2, homework personnel must be registered before entering the work area (no helmet, protective clothing, non-slip shoes, no construction certificate), the implementation of all safety technical measures and personal protective equipment, not to carry out the construction.

3, homework personnel should be civilized construction, safety, dedication, conscientious, not afraid of hardship, dedication, obey the management, obey the command, and constantly improve their business skills.

Second, the preparation before operation

1, make reasonable work arrangement and reasonable construction period.

2, check the safety protection tools, check the equipment, check the vehicle working ability, whether water and electricity can be supplied.

3. Open the septic tank to be constructed 2-4 hours in advance, ventilate it with an axial fan, and make a protective cordon around it, and assign special personnel to guard it (to prevent pedestrians and vehicles from falling into the pool and causing accidents).

Third, formal construction.

1, the instrument checks whether there is toxic gas in the septic tank, organizes vehicles to pump away the floating objects without toxic gas in the septic tank, and drains the water in the septic tank with a sewage pump after pumping away the floating objects.

2. In the secondary treatment, the precipitated feces and sludge are diluted by the high-pressure cleaning vehicle, and the toxic gas hidden at the bottom of the septic tank is discharged, and then the sewage in the septic tank is discharged, and the instrument detects whether there is toxic gas in the tank again.

3, homework personnel wear seat belts, fire escape, equipped with long tube respirator downhole operation.

4. Pack the sediment under the septic tank, hoist the equipment into the well with an electric elevator, and then transport it in a sealed cart (this can ensure the hygiene problems of the construction site and transportation section).

5, homework personnel must be replaced every 2 hours (cycle).

6. Cleanliness standard: There is no floating object on the water surface, the pool wall is basically clean, and the operation site is basically sanitary.

7. Requirements for outward transportation: The garbage generated every day should be bagged and transported away from the construction site and disposed of.

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