Electric biological processing device and method for waste water containing heavy metal ion and non-degradable organism

A technology for heavy metal ions and organic wastewater, which is applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. The effect of directional movement and low energy consumption

Inactive Publication Date: 2006-03-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The electrobiological reaction device described in the patent CN1435379A can better treat refractory organic wastewater, but from the examples listed, the concentration of refractory organic matter that the device can handle is relatively low

Method used

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  • Electric biological processing device and method for waste water containing heavy metal ion and non-degradable organism

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Experimental program
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Effect test

Embodiment 1

[0026] The electrobiological treatment device for heavy metal ions and refractory organic wastewater provided in this embodiment has an electric field provided by a DC power supply 1, and the electrobiological reaction tower 6 is placed vertically, with stainless steel as the inner wall 7 of the tower as the cathode, and an outer insulating layer 10. A stainless steel rod is placed in the tower core 9 as an anode, and PVA embedded metal beads loaded with microorganisms are filled between the two stages as a solid phase carrier 8. The carrier forms a multi-dimensional electrode under the action of the electric field in the tower, and the filling rate of the carrier 8 is 90%, the air enters the tower from the gas distributor 11 through the air inlet pipe aeration head 12 at the bottom of the electrobiological reaction tower 6, and the gas is discharged from the tower top exhaust port 5, and the electroplating waste water to be treated in the sewage tank 2 and the sedimentation tan...

Embodiment 2

[0031]The electric field of the electrobiological treatment device for heavy metal ions and refractory organic wastewater provided in this embodiment is provided by a DC power supply 1, and the electrobiological reaction tower 6 is vertically placed, and the inner wall 7 of the tower is made of a titanium-based lead dioxide surface-modified material as an anode , the outer wall of the tower is covered with an insulating layer 10, a stainless steel rod is used as a cathode and placed in the tower core 9, and PVA embedded metal beads loaded with microorganisms are filled between the two stages as a solid phase carrier 8, and the carrier acts on the electric field in the tower. A multi-dimensional electrode is formed below, the filling rate of the carrier 8 is 85%, the air enters the tower from the aeration head 12 of the air inlet pipe at the bottom of the electrobiological reaction tower 6 through the gas distributor 11, and the gas is discharged from the exhaust port 5 on the to...

Embodiment 3

[0035] The electrobiological treatment device for heavy metal ions and refractory organic wastewater provided in this embodiment has an electric field provided by a DC power supply 1, and the electrobiological reaction tower 6 is vertically placed, and the inner wall 7 of the tower is made of a titanium-based lead dioxide surface modified material as a The anode, the outer wall of the tower is covered with an insulating layer 10, and a stainless steel rod is used as the cathode to place the tower core 9, and the calcium alginate carrier particles 8 embedding high-efficiency phenol-reducing bacteria are filled between the two stages, and the air flows from the bottom of the electrobiological reaction tower 6 The aeration head 12 of the inlet pipe enters the tower through the gas distributor 11, thereby forming a three-phase fluidized bed for amplifying the anode catalytic electrobiology. Part of the reflux water in 16 passes through the peristaltic pump 3, and then enters the el...

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Abstract

The present invention relates to electric and biological processing apparatus and method for waste water containing heavy meal ion and non-degradable organism. The apparatus includes electric and biological reaction tower with top air outlet, bottom air distributor, liquid inlet in the upper part, liquid outlet in the lower part and connected with precipitator, tower wall and tower core constituting one electrode pair and insulating layer outside the tower wall. The present invention has the advantages of multi-dimensional electrode reinforced electric field to promote the electrochemical reaction and directional motion of heavy metal ion, and catalytic electrode/efficient functional microbe group with coupled reaction to degrade organic waste water. The present invention can treat waste water containing heavy meal ion and non-degradable organism effectively.

Description

technical field [0001] The invention relates to industrial waste water treatment technology, in particular to an electrobiological treatment device and method for heavy metal ion-containing and refractory organic waste water. Background technique [0002] With the development of modern industry, more and more chemical products continue to bring more convenient and rich material life to human beings. But at the same time, during the production and use of these products, many organic substances produced will not only seriously pollute the environment, but also are difficult to be biodegraded, such as phenol, chlorophenol, nitrobenzene, various dyes and their intermediates. body and so on. At present, coagulation degradation, high-temperature oxidative degradation, biodegradation, and electrolytic degradation are commonly used in China to treat such substances. Among them, the coagulation degradation treatment device can effectively remove some p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/48C02F3/10
CPCY02W10/10
Inventor 李鑫钢王韬姜斌黄欣孔小松刘涉江
Owner TIANJIN UNIV
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