Method for recovering boron from salt lake brine lithium extraction production wastewater

The invention provides a method for recovering boron from salt lake brine lithium extraction production wastewater, and the method comprises the following steps: adjusting the pH value of the wastewater to be acidic, and carrying out first reverse osmosis treatment to obtain first reverse osmosis produced water; performing second reverse osmosis treatment on the first reverse osmosis produced water to obtain second reverse osmosis produced water; adjusting the pH value of the second reverse osmosis produced water to be alkaline, and then carrying out third reverse osmosis treatment to obtain third reverse osmosis concentrated water; the third reverse osmosis concentrated water is used for preparing a boron-containing product. According to the method, resource utilization of boron in the salt lake brine is achieved, the process is simple, the prepared boron-containing product is high in purity, and the method is suitable for industrial production. 本发明提供一种盐湖卤水提锂生产废水回收硼的方法，所述方法包括：将所述废水的pH调节至酸性后，进行第一反渗透处理，得到第一反渗透