Low-carbon co-treatment technology for landfill leachate and chromium-containing wastewater

The invention provides a green and low-carbon synchronous treatment method for chromium-containing wastewater and landfill leachate, which comprises the following steps: firstly, carrying out anaerobic biochemical reaction on a mixed solution of the chromium-containing wastewater and the landfill leachate, introducing a short-term micro-aeration technology in the process, accelerating the reduction of Cr (VI), and consuming COD (Chemical Oxygen Demand) and sulfate; and then entering an intermittent aeration process, so that Cr (VI) is thoroughly reduced, small molecular organic matters are basically consumed, and ammonia nitrogen is greatly reduced. Then, through nanofiltration, most of high-molecular organic matters are intercepted, filtrate is subjected to electrochemistry, chlorine is collected, and ammonia nitrogen is removed through a breakpoint chlorination method formed in the electrolysis process. 本发明提供了一种绿色低碳的含铬废水与垃圾渗滤液同步处置方法，首先将含铬废水与垃圾渗滤液混合液进行厌氧生化反应，过程引入了短期微曝气技术，加速Cr(VI)还原，并消耗COD及硫酸盐。随后进入间歇曝气过程，Cr(V