Process and device for strengthening short-cut denitrification anaerobic ammonia oxidation denitrification and synchronous phosphorus recovery
A nitrifying anaerobic ammonium and phosphorus recovery technology, applied in the field of water treatment, can solve the problems of inability to further participate in the reduction reaction, low ammonia nitrogen removal rate, and influence on the denitrification effect, and achieve long-term good operation, stable removal and recovery, and enhanced The effect of high exposure chance
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Embodiment 1
[0034] This embodiment provides a device for strengthening short-range denitrification anammox denitrification and simultaneous phosphorus recovery, such as figure 1 As shown, the device adopts a sequence batch reactor, and the sequence batch reactor communicates with the raw water tank through a water inlet pipe, and an inlet pump is arranged on the water inlet pipe for pumping the sewage in the raw water tank into the reaction device. A first time controller is connected with the water inlet pump to control the working time of the water inlet pump.
[0035] The sequencing batch reactor is provided with an acetic acid dosing device, and the acetic acid dosing device includes an acetic acid storage container, and the acetic acid storage container adopts a polyethylene container, and the acetic acid storage container is connected to the sequence batch via an acetic acid dosing pipeline. The acetic acid dosing pump is connected to the acetic acid dosing pipeline, and a second t...
Embodiment 2
[0051] This embodiment provides a device for intensifying short-cut denitrification, anammox denitrification and simultaneous phosphorus recovery. The device is the same as that in embodiment 1. The sequence batch reaction process based on the device in this example is also the same as that in Example 1, except that the volume ratio of the amount of iron powder used in this example to the incoming water is 0.15 g / L in terms of mass.
experiment example
[0053] In order to prove the technical effect of the technical scheme in the present invention, NO 3 - -N, NO 2 - -N, NH 4 + -N and PO 4 3- The content of -P is detected and detected day by day. Wherein the next day monitoring result of the pollutant concentration in the water in and out of the reactor in embodiment 1 is as follows:
[0054] Table 1 In Example 1, the influent and effluent pollutant concentration of the device for strengthening short-range denitrification anammox denitrification and simultaneous phosphorus recovery
[0055]
[0056] Calculate the removal efficiency of pollutants according to the above experimental results, the results are shown in the following table:
[0057] Pollutant treatment rate of the device for strengthening short-range denitrification anammox denitrification and simultaneous phosphorus recovery in Example 1 in table 2
[0058]
[0059] From the above experimental results, it can be seen that the enhanced short-range deni...
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