Tools/raw materials: cement, water, shovel, plastic film.

1, according to the process requirements, design and manufacture the pool frame and the dimensions of each part. Mix the required raw materials in proportion, then add them into cement and stir them into slurry for later use.

2. Dig a sink with corresponding depth on the ground manually or mechanically (as the case may be), and then fill it with mixed mud. It can be used after being completely cured. If you need to rebuild the sink, you can lay a plastic film on the bottom to facilitate the later cleaning work.

The design of grease trap shall meet the following requirements:

1, sewage flow should be calculated according to the design second flow; The flow rate of sewage containing edible oil in the pool shall not be greater than 0.005 m/s; The residence time t of sewage containing edible oil should be 2 ~10 min; Effective volume v = 60qt (q is the maximum design second flow);

2. The volume of oil stored in the oil separation tank for manual degreasing shall not be less than 25% of the effective volume of the tank; The grease trap shall be equipped with a removable cover plate. The inlet pipe should consider the possibility of smooth flow; The depth from the bottom of the outlet pipe of the grease trap to the bottom of the tank should not be less than 0.6m

3. There are four kinds of grease traps in the national standard drawing, which are selected according to the designed second flow rate of sewage, regardless of the passing cars on the tank top. The selection data of the grease trap is taken from the national architectural standard design atlas Small Drainage Structures 04S5 19, and the maximum design second flow of sewage undertaken by each grease trap should be 0.01L/S ~ 4.80L/S. ..

Refer to Baidu Encyclopedia -04S5 19 Small Drainage Structure for the above contents.