Integrated synchronous nitrogen and sulfur removal device and wastewater treatment method

An integrated synchronous nitrogen and sulfur removal device comprising a reactor, wherein a partition plate is horizontally arranged in the reactor to divide the reactor into upper and lower areas, wherein the upper area above the partition plate is a first reaction area, and the lower area below the partition plate is a second reaction area;

• an annular baffle plate with a height is arranged in the first reaction area, and a lower end of the annular baffle plate is fixed with the partition plate, so that the first reaction area is divided into two chambers, that is, a first reaction chamber and a second reaction chamber from inside to outside;
• a hollow columnar carrier is arranged in the first reaction chamber, a top end of the hollow columnar carrier is closed, and a lower end of the hollow columnar carrier is fixed with the partition plate, so that a third reaction chamber is formed in the first reaction chamber, and the hollow columnar carrier is made of biological stuffing;
• a water inlet of the reactor is formed above the first reaction chamber to facilitate entry of wastewater into the first reaction chamber, and some sulfate and ammonium in the first reaction chamber are diffused into the third reaction chamber, an anode and a cathode are arranged in the third reaction chamber, and the anode and the cathode are connected with positive and negative electrodes of a direct-current power supply, respectively, to facilitate reduction of sulfide produced by sulfate radical reduction into elemental sulfur;
• several water holes are formed in portions of the partition plate corresponding to the second reaction chamber and the first reaction chamber corresponding to an outer side of the hollow columnar carrier to facilitate wastewater in the first reaction chamber to enter the second reaction chamber through the second reaction area, aeration equipment is arranged in the second reaction chamber, and a water outlet is formed in an upper part of a side wall of the reactor corresponding to the second reaction chamber to facilitate discharge of treated wastewater.