New energy industrial sewage treatment mainly targets wastewater containing heavy metals, acids, alkalis, and organic pollutants generated during the production processes of photovoltaics, lithium batteries, etc. Technologies such as chemical precipitation, membrane separation, and biodegradation are used to remove harmful substances, and a reclaimed water reuse system is integrated to achieve the recycling of water resources. For example, the production wastewater of photovoltaic cells needs to treat fluoride ions, nitrogen, phosphorus, etc., while the lithium battery industry focuses on the recovery of heavy metals such as nickel, cobalt, and manganese. It strictly adheres to environmental protection standards, reduces environmental risks, and supports the green and sustainable development of the industry.