Legal analysis: Generally speaking, there are many organic components in restaurant sewage, and the comprehensive effect between the components is strong, and the stability is poor, but the toxicity is not great, and the pretreatment is relatively difficult. The discharge time has certain regularity, and the instantaneous discharge flow is large. Generally, noon and evening are the peak period of kitchen sewage discharge. The existing treatment devices can generally make the sewage meet the national discharge standards, or simply pretreat the sewage before it is discharged into the urban sewage pipe network system, so there are few integrated devices that can really reuse the sewage after treatment.

Legal basis: Article 63 of the Environmental Protection Law of the People's Republic of China. If an enterprise, institution or other producer or operator commits one of the following acts, which does not constitute a crime, in addition to being punished in accordance with relevant laws and regulations, the competent department of environmental protection of the people's government at or above the county level or other relevant departments will transfer the case to the public security organ, and the directly responsible person in charge and other directly responsible personnel will be detained for more than 11 days and less than 15 days; If the circumstances are relatively minor, they shall be detained for not less than five days but not more than ten days:

(1) The construction project fails to carry out environmental impact assessment according to law and is ordered to stop construction and refuses to implement it;

(2) Those who discharge pollutants in violation of laws and regulations without obtaining a pollutant discharge permit and are ordered to stop discharging pollutants and refuse to implement them;

(3) illegal discharge of pollutants by means of concealed pipes, seepage wells, seepage pits, perfusion or tampering with or forging monitoring data, or abnormal operation of pollution prevention and control facilities;

(4) those who have been ordered to make corrections for producing or using pesticides that are prohibited by the state, and refuse to make corrections.