CN105314795A - Biochemical sewage filtration method - Google Patents
Biochemical sewage filtration method Download PDFInfo
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- CN105314795A CN105314795A CN201510204247.XA CN201510204247A CN105314795A CN 105314795 A CN105314795 A CN 105314795A CN 201510204247 A CN201510204247 A CN 201510204247A CN 105314795 A CN105314795 A CN 105314795A
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- biochemical sewage
- filtration method
- coagulation
- carbon metal
- processed liquid
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- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A biochemical sewage filtration method includes the steps of carbon metal electrochemical reaction, magnetization, flocculation, magnetic coagulation, liquid phase separation and the like, wherein carbon metal scraps are added in a carbon metal electrochemical reaction device to serve as main filler, the internal temperature of the reaction device is controlled to be within 18 DEG C-33 DEG C, and the pH value is controlled within 4-7.5. Natural electrolytic magnetization is achieved, and the biochemical sewage filtration method is efficient, capable of saving energy, ecological and environmentally friendly.
Description
Technical field
The invention belongs to environmental friendly regenerated water-treatment technology field, particularly a kind of biochemical sewage filtering method.
Background technology
Present stage, in the electrochemistry biochemical processing of sewage, generally there are auxiliary current electrolytic process and the large type of internal electrolysis two.The principle that internal electrolysis utilizes the material of tool potential difference to form microbattery carries out fluid purification, and while saving energy consumption, efficiency is unstable, therefore.The present invention designs the method for the biochemical filtering of a kind of liquid electrochemical without the need to auxiliary current.
Summary of the invention
A kind of biochemical sewage filtering method of the present invention's design, based on step compositions such as carbon metal electro-chemical reaction, flocculation, magnetic-coagulation, liquid phase separation, processed liquid first through liquid pump suction, then carries out flow metering, afterwards, added after air implements mixing by the micro-aerating apparatus of jet and enter Inner electrolysis reaction unit, and make it react, then enter flocculation tank, and carry out coagulation under magnetic-coagulation effect, after magnetic-coagulation, enter liquid phase separation groove and implement liquid phase separation.
A kind of biochemical sewage filtering method of the present invention's design, its usefulness is, the filler that in carbon metal electrification reaction unit to add with carbon scrap metal be major ingredient.And the temperature in above-mentioned reaction unit is controlled between 18 DEG C ~ 33 DEG C, pH value controls between 4 ~ 7.5.The present invention is based on and add above-mentioned carbon scrap metal in above-mentioned carbon metal electrification reaction unit, and temperature, pH value and the flow velocity thereof by controlling the processed liquid in above-mentioned reaction unit, make, in its reaction unit, electrochemistry biochemical reaction occurs, and make its formed hydrolysis resultant impurity is adsorbed and condenses, the magnetic ferrite produced based on said hydrolyzed resultant are to the absorption of impurity and coagulation process, processed liquid Purification Benefits of Purifying can be made to improve, accelerate liquid phase separation, reduce throw out water content simultaneously.Energy-efficient, realize the object of resource regeneration, ecological, environmental protective.
Accompanying drawing explanation
Fig. 1, for representing the step explanatory view of a kind of biochemical sewage filtering method of the present invention.
nomenclature
1 liquid pump, 2 under meters, the micro-aerating apparatus of 3 jet, 4 carbon metal electrification reaction units, 5 flocculation tanks, 6 magnetic-coagulation liquid phase separation grooves
Referring to accompanying drawing, a kind of biochemical sewage filtering method of the present invention is described in conjunction with the embodiments.
Embodiment
Embodiment 1
Fig. 1 is the step explanatory view representing a kind of biochemical sewage filtering method of the present invention.As shown in Figure 1, above-mentioned processed liquid, being aspirated by above-mentioned liquid pump 1 pumps in above-mentioned carbon metal electrification reaction unit 4 through above-mentioned under meter 2 and the micro-aerating apparatus of jet 3, the filler that to add with above-mentioned carbon scrap metal in above-mentioned carbon metal electrification reaction unit 4 be main component, suck air capacity 0.1 ~ 0.6m3/m3 by the micro-aerating apparatus 3 of above-mentioned jet to be processed liquid min, and at above-mentioned carbon metal electrification reaction unit 4 in uneven distribution.Base this, above-mentioned processed liquid is mixed in this filler, forms both macro and micro short circuit battery, electrochemistry biochemical reaction occurs, comprises anodic reaction and cathodic reaction.
Base this, through the Fe that above-mentioned anodic reaction process is formed
2+, Fe
3+and Al
3+under set pH value condition, the hydrolysis resultant formed.Impurity is adsorbed and condenses, and air supporting effect can occur the gas that negative electrode produces, with further removal of contamination, in above-mentioned reaction process, the cathodic reaction of microbattery promotes that the pH value of processed liquid raises, Fe2+ and the OH-that microbattery anodic reaction produces is combined into Fe (OH) 2, and be with under suitable aerobic condition between 18 DEG C ~ 33 DEG C in temperature, magnetic substance (ferrite) can be generated further: simultaneously, Fe (OH) 3 colloid also can kinetics and form the ferrite with spinel structure, there is high adsorption activity, heavy metal ion in adsorbable processed liquid is (as Zn2+, n2+, Cr3+, Hg2+ etc.), oils, tensio-active agent and other fine suspension, even connect bacterium, virus waits also can be flocculated by adsorbing removing, on the other hand, under weakly alkaline condition, Fe3O4 is positive polarity, neutralizes with colloid electronegative in processed liquid, and makes its de-steady flocculation.Thus reach the coagulation cleaning action of strengthening to processed liquid, based on coagulation tank 5, produced coagulation flco sedimentation speed accelerated, make throw out water content reduce, the pH value of the processed liquid handled by a kind of biochemical sewage filtering method of the present invention is between 4 ~ 7.5 simultaneously.Based on the treatment process of adopted Inner electrolysis, magnetic-coagulation, take waste material as the energy, to be increased in Inner electrolysis process produce the effect of the Coagulation aiding of magnetic substance.A kind of biochemical sewage filtering method of the present invention's design, its beneficial effect is: chroma removal rate > 95%, COD clearance > 85%, sludge liquid phase separation speed and water content accelerate 0.5 times and minimizing 10% respectively than single internal electrolysis.
Embodiment 2:
Containing the processed liquid of anion surfactant, adopt Inner electrolysis magnetic-coagulation method purifying treatment: by pH value be 4 ~ 7.5 CODcr1000 ~ 1400mg/L liquid that is processed pump into carbon metal electrification reaction unit 4, and fill based on the filler of carbon scrap metal, make processed liquid reaction 30min in above-mentioned carbon metal electrification reaction unit 4, and temperature controls at 18 ~ 33 DEG C, carry out neutralizing and magnetic-coagulation through neutralization, magnetic-coagulation groove, then through liquid phase separation groove 6 liquid phase separation.After this step purge of base, the chroma removal rate > 98% of processed liquid, removal efficiency > 90%, CODcr clearance > 90%, magnetic substance output capacity is 20 ~ 100mg/Lh, and moisture percentage in sewage sludge is 88 ~ 90%.Purifying treatment of the present invention is to liking industry and the processed liquid of life, especially surfactivity is processed liquid, kitchen oily(waste)water and the processed liquid of printing and dyeing, also can be used as difficult for biological degradation be processed liquid pre-treatment and significantly improve the biodegradability of processed liquid.
Embodiment as described in the present invention above; only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; under the prerequisite not departing from design aim of the present invention; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should belong in protection domain that the present invention determines.
Claims (2)
1. a biochemical sewage filtering method, is characterized in that, add filler in carbon metal electrification reaction unit 4, it is with carbon scrap metal for major ingredient, and the temperature in above-mentioned reaction unit 4 controls between 18 DEG C ~ 33 DEG C, and pH value controls between 4 ~ 7.5.
2. biochemical sewage filtering method as claimed in claim 1, is characterized in that, sucks air capacity 0.1 ~ 0.6m by the micro-aerating apparatus of jet
3/ m
3processed liquid min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204247.XA CN105314795A (en) | 2015-04-27 | 2015-04-27 | Biochemical sewage filtration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204247.XA CN105314795A (en) | 2015-04-27 | 2015-04-27 | Biochemical sewage filtration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105314795A true CN105314795A (en) | 2016-02-10 |
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ID=55243228
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510204247.XA Pending CN105314795A (en) | 2015-04-27 | 2015-04-27 | Biochemical sewage filtration method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223967A (en) * | 1998-01-21 | 1999-07-28 | 广东工业大学 | Method for purification of waste water |
| CN101200320A (en) * | 2007-11-28 | 2008-06-18 | 河北理工大学 | High-carbonaceous metallized pellet for treating waste water and preparation method |
| CN101462789A (en) * | 2009-01-08 | 2009-06-24 | 上海交通大学 | Advanced treatment reactor and method for landfill yard leachate biological treatment tail water |
| CN105060411A (en) * | 2015-07-29 | 2015-11-18 | 江苏大学 | Internal electrolysis-electric flocculation method for processing phosphor-containing wastewater |
-
2015
- 2015-04-27 CN CN201510204247.XA patent/CN105314795A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223967A (en) * | 1998-01-21 | 1999-07-28 | 广东工业大学 | Method for purification of waste water |
| CN101200320A (en) * | 2007-11-28 | 2008-06-18 | 河北理工大学 | High-carbonaceous metallized pellet for treating waste water and preparation method |
| CN101462789A (en) * | 2009-01-08 | 2009-06-24 | 上海交通大学 | Advanced treatment reactor and method for landfill yard leachate biological treatment tail water |
| CN105060411A (en) * | 2015-07-29 | 2015-11-18 | 江苏大学 | Internal electrolysis-electric flocculation method for processing phosphor-containing wastewater |
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Application publication date: 20160210 |
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| WD01 | Invention patent application deemed withdrawn after publication |