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CN-121591342-B - Sewage treatment device of microbial electrolytic cell

CN121591342BCN 121591342 BCN121591342 BCN 121591342BCN-121591342-B

Abstract

The invention relates to the technical field of sewage treatment devices, in particular to a sewage treatment device of a microbial electrolytic tank, which comprises an overflow treatment assembly and comprises a stepped drainage tank, wherein a pre-electrolytic tank, a microbial tank and a secondary electrolytic tank are sequentially separated from each other along the overflow direction by overflow plates vertically arranged in the stepped drainage tank, polar plate tanks are separated from both sides of the pre-electrolytic tank and the secondary electrolytic tank by side separation plates, a conducting screen plate for conducting two side tank chambers is arranged on each side separation plate, anode plates and anode plates for externally connecting a power supply to electrolyze sewage are respectively arranged on the two side polar plate tanks.

Inventors

  • YANG LI
  • ZHENG GUANG

Assignees

  • 安徽泉顺环保科技有限公司

Dates

Publication Date
20260505
Application Date
20260112

Claims (9)

  1. 1. The microbial electrolytic cell sewage treatment device is characterized by comprising: The overflow treatment assembly (1) comprises a step-shaped drainage pool (11), wherein a pre-electrolytic cell (101), a microbial cell (102) and a secondary electrolytic cell (103) are sequentially separated from each other along the overflow direction in the step-shaped drainage pool (11) through an overflow plate (13) which is vertically arranged; The two sides of the pre-electrolytic cell (101) and the two sides of the secondary electrolytic cell (103) are respectively partitioned by a polar plate cell (104) through a side partition plate (12), and a conducting screen plate (7) for conducting two side cell chambers is arranged on the side partition plate (12); anode plates and anode plates for the external power supply to electrolyze the sewage are respectively arranged on the two side of the polar plate tanks (104); the scraping unit (4) comprises U-shaped positioning seats (42) arranged on the side partition plates (12) on two sides and scraping plates (45) arranged in a lifting mode along the vertical direction of the U-shaped positioning seats (42), wherein the scraping plates (45) are used for scraping accumulated impurities on the outer surfaces of the conducting screen plates (7) so as to keep water circulation.
  2. 2. The microbial electrolysis cell sewage treatment device according to claim 1, wherein the pre-electrolysis cell (101) is internally provided with a solid waste dragging conveying belt (9) for dragging solid waste.
  3. 3. The microbial electrolysis cell sewage treatment device according to claim 1, wherein a rotating shaft (2) is rotatably arranged in the secondary electrolysis cell (103), and a driving motor (3) which is coaxially connected with the rotating shaft (2) is arranged at the outer wall of the stepped drainage cell (11); The stirring roller (6) is sleeved on the rotating shaft (2) and positioned in the secondary electrolytic cell (103), and the stirring roller (6) is used for stirring the water body to perform full electrolytic treatment.
  4. 4. A sewage treatment apparatus for a microbial electrolysis cell according to claim 3 wherein the scraping unit (4) comprises a ratchet wheel (41) coaxially and fixedly mounted on the rotation shaft (2); lifting grooves (421) for vertically sliding and installing lifting blocks (43) are formed in the U-shaped positioning seat (42), and pawls (44) and scraping plates (45) are fixedly connected to the upper ends and the lower ends of the lifting blocks (43) respectively.
  5. 5. The microbial cell sewage treatment device according to claim 4, wherein the lifting block (43) is provided with a lifting lug (431) for being inserted into the lifting groove (421), and a return spring is arranged between the lifting lug (431) and the groove wall of the lifting groove (421); When the ratchet wheel (41) rotates, the lifting block (43) is lifted upwards through the pawl (44) and is reset downwards through the reset spring.
  6. 6. The apparatus for treating wastewater in a microbial electrolysis cell according to claim 5 wherein the scraper (45) comprises a strip plate (451) corresponding to the position of the conducting screen (7), and the strip plate (451) is used for scraping impurities accumulated on the surface of the conducting screen (7) when the lifting block (43) is lifted.
  7. 7. The microbial electrolysis cell sewage treatment device according to claim 1, wherein a water filtering plate (5) is arranged on the stepped drainage cell (11) and positioned at the outer side of the secondary electrolysis cell (103) at the lowest end, and the water filtering plate (5) is used for capturing floating impurities.
  8. 8. A sewage treatment device of a microbial electrolytic cell according to claim 3, wherein a flip plate (8) for performing anaerobic and aerobic treatments after opening and closing is rotatably arranged in the microbial cell (102) through the driving motor (3), and a sludge discharge valve pipe (14) for conducting the microbial cell (102) and circularly discharging microbial sludge is arranged on the step-type drainage cell (11).
  9. 9. The microbial cell sewage treatment device according to claim 1, wherein a bottom slag discharge valve pipe (15) for discharging settled solid waste is arranged on the overflow plate (13) at the outer edge of the secondary cell (103) in a conducting manner.

Description

Sewage treatment device of microbial electrolytic cell Technical Field The invention relates to the technical field of sewage treatment devices, in particular to a sewage treatment device of a microbial electrolytic cell. Background Along with the acceleration of industrial development and urban process, the sewage discharge amount generated in the industries of chemical industry, cultivation, printing and dyeing and the like is continuously increased, the sewage components are increasingly complex, heavy metal ions, toxic organic pollutants (such as phenols and polycyclic aromatic hydrocarbon) and refractory macromolecular organic matters are commonly contained, and meanwhile, high-concentration ammonia nitrogen and pathogenic microorganisms are accompanied, so that the ecological system of the water body is seriously damaged if the sewage is directly discharged. In the prior art, the microbial treatment technology utilizes the metabolism of functional flora (such as aerobic bacteria, anaerobic bacteria, nitrifying bacteria and the like) in microbial substrate sludge to convert organic matters in sewage into harmless matters such as carbon dioxide, water and the like, so as to realize the purification of pollutants, but has obvious technical defects when treating complex sewage containing heavy metals, toxic matters and refractory organic matters, so that the treatment effect is unstable, on one hand, heavy metal ions (such as copper ions and lead ions) in the sewage are easy to damage the integrity of microbial cell membranes, toxic organic matters can inactivate metabolic key enzymes, inhibit vital activities such as respiration and propagation of microorganisms, even cause death of the functional flora, and cause the sudden reduction of the activity of the microbial substrate sludge, and the degradation efficiency is greatly reduced. Therefore, the existing microorganism sewage treatment device is difficult to adapt to the treatment requirement of complex sewage, and a device capable of guaranteeing the activity of microorganisms and obtaining reliable and continuous sewage treatment effect is urgently needed. Disclosure of Invention The invention aims to solve the defects in the background art and provides a sewage treatment device of a microbial electrolytic cell. In order to solve the technical problems, the invention adopts the following technical scheme: a microbial electrolysis cell sewage treatment device, comprising: the overflow treatment assembly comprises a stepped drainage pool, wherein a pre-electrolytic cell, a microbial pool and a secondary electrolytic cell are sequentially separated from each other along the overflow direction by an overflow plate vertically arranged in the stepped drainage pool; the two sides of the pre-electrolytic cell and the two sides of the secondary electrolytic cell are respectively partitioned by a side partition plate, and the side partition plates are provided with a conducting screen plate for conducting the cell chambers at the two sides; anode plates and anode plates for externally connecting a power supply to electrolyze sewage are respectively arranged in the polar plate tanks at the two sides; The scraping unit comprises U-shaped positioning seats arranged on the side partition plates on two sides and scraping plates arranged in a lifting mode along the vertical direction of the U-shaped positioning seats, wherein the scraping plates are used for scraping accumulated impurities on the outer surfaces of the conducting net plates so as to keep water circulation. Preferably, a solid waste dragging conveyer belt for dragging solid waste is arranged in the pre-electrolytic tank. Preferably, a rotating shaft is rotatably arranged in the secondary electrolytic cell, and a driving motor which is coaxially connected with the rotating shaft is arranged at the outer wall of the stepped drainage cell; and the stirring roller is sleeved in the secondary electrolytic cell on the rotating shaft and is used for stirring the water body to perform full electrolytic treatment. Preferably, the scraping unit comprises a ratchet wheel coaxially and fixedly arranged on the rotating shaft; the U-shaped positioning seat is provided with a lifting groove for vertically sliding and installing a lifting block, and the upper end and the lower end of the lifting block are respectively and fixedly connected with a pawl and the scraping plate. Preferably, the lifting block is provided with a lifting lug which is used for being inserted into the lifting groove, and a reset spring is arranged between the lifting lug and the wall of the lifting groove; When the ratchet wheel rotates, the lifting block is lifted upwards through the pawl and is reset downwards through the reset spring. Preferably, the scraping plate comprises a strip plate corresponding to the position of the conducting screen plate, and the strip plate is used for scraping impurities accumulated on the surface of the cond