In the era of new energy, does the lithium battery industry need to install environmental protection facilities?

With the global development and application of new energy, the lithium battery industry has become one of the focuses of new energy development. Lithium batteries are a relatively clean new energy, but the wastewater generated during the production of lithium batteries is a typical high-concentration organic wastewater. The wastewater mainly contains carbon powder, organic lipids and N-methylpyrrolidone. Although the amount of water is relatively small, the wastewater composition is complex, the biochemical properties are poor, it is not easy to biodegrade and is toxic. If the wastewater generated by lithium batteries is directly discharged into the water environment, it will greatly affect the ecological environment of the water circle and threaten human health. The consumption link of positive electrode materials in the lithium battery industry is not only a large water user, but also a large producer of wastewater discharge.

Some traditional lithium battery wastewater solutions have been difficult to meet the needs of the new energy industry. In order to complete the prescribed wastewater discharge indicators or achieve true zero wastewater discharge, some companies in the lithium battery industry need to install environmental protection facilities to deeply treat wastewater to achieve resource recycling.

The main purpose of installing such facilities is to remove pollutants such as COD, SS, TN, NH3-N and TP in lithium battery production wastewater. The wastewater from biochemical treatment cannot fully meet the reuse standards and requires primary deep treatment. After adopting environmental protection facilities, 75% of the production wastewater is used for open-circulation cooling water replenishment after treatment, and the remaining wastewater is discharged after secondary deep treatment. After the reduction treatment, the concentrated liquid adopts the evaporation crystallization process, and the final crystals are used for solid waste transfer.

The environmental protection process equipment uses dry mechanical rather than chemical methods to separate the lithium battery shell and chip active materials. After separating the various components of the lithium battery, it does not take time to recover the by-products produced in the chemical process, and there is no need to worry about the by-products having an adverse impact on the environment, so that all processes have no secondary impact on the environment and achieve green environmental protection.