A method for treating nitrogen-containing and sulfur-containing wastewater with a biofilm composite egsb reactor based on micro-oxygen enhancement
A composite reactor technology, applied in the direction of anaerobic digestion treatment, biological treatment equipment, chemical instruments and methods, etc., can solve the problems affecting the treatment efficiency of the reactor and the uneven distribution of biomass, so as to improve the efficiency of sewage treatment and reduce the The content of sulfide and the effect of improving the efficiency of sewage treatment
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specific Embodiment approach 1
[0019] Specific implementation mode one: combine figure 1 , This embodiment is a method for treating nitrogen-containing and sulfur-containing wastewater with a micro-oxygen-enhanced biofilm composite EGSB reactor, which is specifically completed according to the following steps:
[0020] 1. Start-up phase:
[0021] Inoculate the sludge into the reaction zone 1 of the biofilm composite EGSB reactor based on micro-oxygen enhancement, inject the starting sewage into the reaction zone 1 of the biofilm composite EGSB reactor based on micro-oxygen enhancement, and start the aeration device 9 , control the aeration rate to 4mL / min of pure oxygen, the hydraulic retention time to 18h, the reflux ratio to 6:1, and run continuously for 50 days to complete the start-up of the biofilm composite EGSB reactor based on micro-oxygen enhancement;
[0022] 2. Processing stage:
[0023] Inject nitrogen-containing and sulfur-containing wastewater into reaction zone 1 of the biofilm composite EG...
specific Embodiment approach 2
[0026] Specific implementation mode two: combination figure 1 , the difference between this embodiment and specific embodiment 1 is: the hard filler 5 is a plurality of filler strings formed by a plurality of low-density fillers 5-2 connected in series, and the bottommost part of the plurality of filler strings At least one high-density filler 5-1 is connected in series. Others are the same as the first embodiment.
[0027] The low-density filler 5-2 described in this embodiment is a polyethylene filler, and the functions of the low-density filler 5-2 are selected: 1. The conventional function is as a filler for loading and gathering microorganisms suspended in the reaction zone 1; 2. , Utilize the characteristics of low density filler 5-2 to play the role of suspended solids.
[0028] The high-density filler 5-1 described in this embodiment is made of volcanic rock or lime, and the functions of the high-density filler 5-1 are selected: 1. The conventional function is to ser...
specific Embodiment approach 3
[0029] Specific implementation mode three: this combination figure 1 The difference between the embodiment and the specific embodiment 1 or 2 is that the density filler 5-1 and the low density filler 5-2 are all middle-pass honeycomb briquette fillers. Others are the same as those in Embodiment 1 or 2.
[0030] The middle-pass briquette-like filler described in this embodiment can change the flow velocity (accelerate the flow velocity) in the process of sewage treatment.
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