In the current catering industry has a serious harm to the environment phenomenon:

1, oil smoke, especially Chinese restaurants, oil smoke content is large.

2, kitchen waste, which is organic solid waste, if not properly disposed of will cause foul odors and other pollution.

3, wastewater, especially in the cleaning process, contains more waste oil and waste residue. As the oil and grease contained in the water, within a short period of time, the natural water quality will become black and stinky, which affects the natural environment, disrupts the balance of the water body, and reduces the availability of water resources.

Because the untreated oily water contains large particles of suspended solids, sediment, etc., if directly discharged into the municipal network, will be deposited in the pipeline flow rate is low or sunken in the pipe section. Over time, the deposited oil and grease adheres to more suspended substances and eventually clogs the pipes.

Sewage Discharge Requirements and Standards

Food establishments need to collect sewage generated in the course of their operations centrally and pre-treat the grease and slag in grease traps. If sewage is discharged to urban drainage facilities, the relevant drainage permit procedures should be applied for from the competent urban drainage department.

1, catering establishments in the public **** sewage network coverage area, should be in line with national and local standards of sewage discharged into the public **** sewage network; catering establishments in the public **** sewage network does not cover the area, should be self-built sewage treatment facilities or self-built drainage network connected to the public **** drainage facilities.

2, catering establishments directly into the sewage discharged into rivers and lakes and other bodies of water, the concentration of pollutants in its sewage shall not exceed the "water pollutant discharge limits (DB44/26-2001) emission limits of the first level of standards".

3, dining establishments built around the rural sewage treatment facilities, in the facilities have a treatment margin under the conditions of the catering sewage and domestic sewage can be connected to the facilities for treatment, and access to the former need to be grease traps, slag and other pre-treatment, the requirements of pollutant concentrations in line with the "sewage discharged into the urban sewers water quality standards" (GB/T 31962-2015) of the water quality control project limits C-level provisions.