A method of using microbial electrolysis to strengthen the upflow sleeve anaerobic digestion methanogenic reactor to treat waste liquid
A methanogenic reactor and microbial electrolysis technology, applied in anaerobic digestion treatment, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of energy recovery rate, organic matter utilization rate and low methane recovery rate, and achieve production The effect of methane rate increase, interference avoidance, and specific surface area increase
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specific Embodiment approach 1
[0017] Specific implementation mode one: combine figure 1 Describe this embodiment in detail. This embodiment is a novel microbial electrolysis enhanced upflow sleeve anaerobic digestion methanogenic reactor consisting of a biological anode 1, a catalytic cathode 2, a cation exchange membrane 3, granular activated sludge 4, and a switching power supply. 5. Water inlet pipe 6, water outlet pipe 7, water outlet weir 8, gas collection device 9, bioelectrochemical reaction area 10, anaerobic digestion reaction area 11, inner wall opening 12, first water pump 13, outer cylinder water outlet pipe 14, The outer cylinder water inlet pipe 15, the inner cylinder 16, the outer cylinder 17 and the second water pump 18 are composed; the middle part of the inner cylinder 16 is uniformly provided with an inner wall opening 12; the upper part of the outer cylinder 17 is provided with an outer cylinder water outlet pipe 14, The lower part of the outer cylinder 17 is provided with an outer cyli...
specific Embodiment approach 2
[0023] Specific embodiment two: the difference between this embodiment and specific embodiment one is that: the bioanode 1 is composed of multiple carbon brush groups; Composed of four carbon brushes; the carbon brush is formed by winding carbon fibers with two titanium wires; the carbon fiber content in the carbon brushes is measured by weight, and a single carbon brush contains 0.843g of carbon fibers. Others are the same as in the first embodiment.
[0024] The carbon brush described in this specific embodiment is soaked in acetone for 24 hours, then placed in a muffle furnace at a temperature of 450°C and burned for 30 minutes, and the burned carbon brush is used after standing at room temperature.
[0025] The carbon fiber used in this specific embodiment is beneficial to the adsorption and growth of the microbial film, and provides a relatively high specific surface area and good electrical conductivity.
specific Embodiment approach 3
[0026] Embodiment 3: The difference between this embodiment and Embodiment 1 or Embodiment 2 is that there is a domesticated microbial film on the bioanode 1 . Others are the same as in the first or second embodiment.
[0027] The bioanode 1 carbon brush described in this specific embodiment is inoculated with the remaining activated sludge in the microbial electrolysis cell reactor, and is acclimatized under an applied voltage of 0.8V until the current is stable.
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Abstract
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