Is the wastewater from the water-based paint production process hazardous waste? The Minister of Ecology and Environment said

Is the wastewater generated during the production of water-based paint hazardous waste? What should I do? Do paint companies have such questions?
Yesterday, the Minister of the Ministry of Ecology and Environment spoke, let’s see what he said!

Letter: I am an enterprise that produces water-based paints (water-based acrylic and water-based epoxy paint). During the production process, tank washing wastewater will be generated. The test results of toxic and hazardous substances in the wastewater did not meet the hazardous waste standards. According to the 2016 version of the hazardous waste list, HW12 dyes, paints waste content, No. 264-011-12, “Other inks, dyes, pigments, Paint (excluding water-based paint) The “waste mother liquor, residues, and intermediate waste” produced in the production process should not be considered hazardous waste. However, an expert said that if 900-299-12 is applied, the content “failure, deterioration, unqualified, obsolete, fake ink, dye, pigment, and paint produced in the production, sales and use process” will be replaced by the cylinder wall. The substance used as waste paint can also be said to be hazardous waste. I would like to ask whether the tank washing wastewater generated in the production process of our company should be treated as hazardous waste or general solid waste.
Response: Consultation on whether the wastewater from the water-based paint production process is hazardous waste” I received the letter. For the questions raised in the letter, the reply is as follows: If the tank washing wastewater generated by your company’s production process can meet the requirements of ” The relevant provisions of Article 7 of the General Rules for the Identification Standards for Solid Wastes (GB34330-2017) may not be managed as liquid wastes and are not solid wastes; if they cannot meet the relevant provisions of Article 7 of the General Rules for the Identification Standards for Solid Wastes (GB34330-2017), If it is managed as liquid waste, it is a solid waste, and it is determined whether it is a hazardous waste according to the “National Directory of Hazardous Wastes” or the identification standards and identification methods of hazardous wastes prescribed by the state.
It is understood that this standard was formulated by the Department of Soil Environment Management and the Department of Science and Technology Standards of the Ministry of Environmental Protection. Drafting organization of this standard: Chinese Academy of Environmental Sciences. This standard was approved by the Ministry of Environmental Protection on May 27, 2017. This standard will be implemented on October 1, 2017. This standard is interpreted by the Ministry of Environmental Protection.
This standard specifies the identification criteria for solid waste based on the source of generation, the identification criteria for solid waste in the process of utilization and disposal, substances not managed as solid waste, substances not managed as liquid waste, and supervision and management requirements.
Relevant provisions in Article 7 of the “General Rules for the Identification of Solid Wastes” (GB34330-2017):
7 Substances not managed as liquid waste
7.1 Waste water and sewage that can be discharged into environmental water bodies or municipal sewage pipe networks and treatment facilities that meet the requirements of relevant laws and regulations and discharge standards.
7.2 Wastewater and sewage that can meet the requirements of relevant regulations and discharge standards for discharge to environmental water bodies or municipal sewage pipe networks and treatment facilities after physical treatment, chemical treatment, physical and chemical treatment, and biological treatment.
7.3 Wastewater that meets the requirements of Article 7.1 or 7.2 produced after the neutralization of waste acid and waste alkali.