CN108394992B - Loading circulation anaerobic biological water treatment device and reinforced anaerobic water treatment method - Google Patents
Loading circulation anaerobic biological water treatment device and reinforced anaerobic water treatment method Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2873—Particular arrangements for anaerobic reactors with internal draft tube circulation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Abstract
The invention discloses a loading circulation anaerobic biological sewage treatment device and an enhanced anaerobic water treatment method using the same, wherein the device comprises a treatment container, wherein a loading circulation main reaction zone is arranged in the treatment container; establishing liquid flow internal circulation in the loading circulation main reaction zone and adding iron powder and activated carbon; iron powder, active carbon and granular sludge in sewage jointly participate in liquid flow internal circulation. The internal circulation of the liquid flow realizes the high-efficiency mass transfer among iron powder, activated carbon and granular sludge in a suspension state, a micro electric field is established by the iron powder and the activated carbon, and the biological toxicity and biological inhibitability of the organic wastewater difficult to degrade in the field of petrochemical industry are effectively reduced and the oxidation efficiency and biological reaction rate of anaerobic organisms are improved under the oxidation reduction action of the micro electric field, the reduction action of zero-valent iron, the adsorption of the activated carbon and the coupling action of the anaerobic microorganisms of the organic wastewater difficult to degrade.
Description
Technical Field
The invention relates to a sewage treatment device and a sewage treatment method, in particular to treatment of refractory petrochemical sewage.
Background
The petrochemical industry relates to a plurality of industries, plays an important role in national economy, and is one of the prop industries of China. However, a large amount of industrial wastewater is generated in the petroleum processing and treating process, the water quality and the components of the industrial wastewater are complex, the industrial wastewater mainly contains organic pollutants such as nitriles, esters, alkanes, alkynes and benzenes, the characteristics of high organic matter concentration, high biotoxicity, low biodegradability, high nitrogen content and the like are presented, the industrial wastewater is typical high-concentration refractory organic wastewater, and the elimination of persistent refractory organic pollutants in the industrial wastewater becomes an important task in the field of environmental protection.
Biological treatment technology is concerned about due to its economy and broad spectrum of organic matter degradation, but how to reduce the biotoxicity and biological inhibition of refractory organic matter and effectively improve the biological treatment efficiency is the core and key of anaerobic biological technology and becomes the development trend and the direction of effort in the future.
Disclosure of Invention
In view of the above, the invention provides a loading circulation anaerobic biological water treatment device and an enhanced anaerobic water treatment method using the same, which can effectively reduce the biotoxicity and biological inhibition of organic wastewater difficult to degrade in the field of petrochemical industry, improve the anaerobic biological oxidation efficiency, and effectively improve the biological reaction rate.
In a first aspect, there is provided a load cycle anaerobic biological water treatment device comprising:
a processing vessel;
a loading circulation main reaction zone is arranged in the treatment container;
an external power driving circulation mechanism is arranged in the loading circulation main reaction zone;
the external power driving circulation mechanism establishes liquid flow internal circulation in the loading circulation main reaction zone;
adding iron powder and active carbon into the loading circulation main reaction zone;
the iron powder, the activated carbon and the granular sludge in the sewage jointly participate in the liquid flow internal circulation.
Preferably, the external power drive circulation mechanism comprises:
the axial-flow impeller comprises an inner cylinder, an axial-flow impeller and a motor;
the inner cylinder is fixed in the loading circulation main reaction zone;
the inner cylinder divides the loading circulation main reaction area into an upflow area and a downflow area;
the ascending area is surrounded by the inner cylinder, and the descending area is the area which is formed by the inner cylinder and the inner wall of the processing container;
the axial flow impeller is arranged at the lower part of the inner cylinder;
the motor drives the axial flow impeller to operate, so that sewage in the treatment container is promoted to circularly flow between the upflow region and the downflow region.
Preferably, the load circulation anaerobic biological water treatment device further comprises:
an inclined plate three-phase separation area and a fixed biological membrane area;
a plurality of inclined plates are arranged in the inclined plate three-phase separation zone;
the inclined plate is used for separating mud, water and gas;
soft filler is arranged in the fixed biological membrane area;
the surface of the soft filler is coated with an anaerobic biological film for the adhesion or/and immobilized growth of anaerobic microorganisms.
Preferably, the inclined plate three-phase separation area, the fixed biofilm area and the loading circulation main reaction area are sequentially distributed in the treatment container from top to bottom.
Preferably, the processing vessel comprises: an outer cylinder;
the bottom of the outer cylinder is provided with a seal head, and the outer cylinder is provided with a water inlet, a water outlet, an upper cover plate, a loading hopper and a water collecting weir; the outlet of the hopper extends into the main reaction zone of the load cycle.
Preferably, the inclined plate three-phase separation area is internally provided with an inclined plate three-phase separator;
the inclined plate three-phase separator is internally provided with a plurality of inclined plates;
the fixed biological membrane area is provided with a fiber bundle stuffing box;
the soft filler is arranged in the fiber bundle stuffing box.
Preferably, a plurality of the inclined plates are arranged in parallel, and the inclined angle of each inclined plate is 45-60 degrees.
Preferably, the particle size of the iron powder is 50-100um, and the particle size of the activated carbon is 300-500 um.
Preferably, the motor; and the lower part of the processing container is fixed through a bearing mechanism.
An enhanced anaerobic water treatment method comprises the following specific steps:
(1) adding iron powder and activated carbon into any one of the loading circulating anaerobic biological water treatment devices, and communicating a water inlet and a water outlet;
(2) starting a motor, and establishing liquid flow internal circulation in a loading circulation main reaction zone of the loading circulation anaerobic biological water treatment device; in the process of liquid flow internal circulation, on the first aspect, a micro electric field is established between the iron powder and the activated carbon, the ferrite loses electrons, strong electron groups in the sewage are reduced to obtain electrons, macromolecular organic matters with the strong electron groups are converted into micromolecular organic matters, and the biological toxicity of the sewage is reduced;
in the second aspect, the iron powder is in contact with granular sludge in the sewage, the iron powder loses electrons, an electron donor is provided for methane bacteria, the metabolism of the methane bacteria is promoted, and the anaerobic oxidation efficiency is improved;
in a third aspect, the activated carbon adsorbs refractory organic components in the wastewater, reduces the biological inhibition effect of the refractory organic components on anaerobic microorganisms, prolongs the residence time of the refractory organic components in the loaded circulating anaerobic biological water treatment device, and increases the biodegradation degree of the refractory organic components;
(3) the sewage flows through the fixed biological membrane area and the inclined plate three-phase separation area in sequence, and anaerobic microorganism sewage treatment is carried out on the fixed biological membrane area; and three-phase separation of mud, water and gas is carried out in the inclined plate three-phase separation area.
Preferably, the strong electron-withdrawing group is one or a mixture of several of azo strong electron-withdrawing groups, aromatic strong electron-withdrawing groups or chloro strong electron-withdrawing groups.
The invention has the beneficial effects that:
1. the loading circulating anaerobic main reaction zone and the fixed biomembrane zone are connected in series spatially, and the biological separation realizes the gradient grading anaerobic biodegradation of organic pollutants;
2. the device constructs internal circulation through the action of an axial flow impeller, fine iron powder and fine granular activated carbon are loaded in an anaerobic circulation reaction zone, suspension of the iron powder, the granular activated carbon and anaerobic granular sludge is realized through liquid flow internal circulation, the interphase mass transfer action is enhanced, and the coupling action of electrochemistry and biological oxidation is realized;
3. the liquid flow internal circulation strengthens the synergistic effect of electrochemical oxidation and the anaerobic organism multi-gradient chain system, strengthens the interphase mass transfer and greatly improves the biological reaction rate. In addition, the micro electrochemistry and the biochemistry are coupled to orient the reduction of the organic matters, so that the biodegradability of the organic matters difficult to degrade is effectively improved;
4. the liquid flow internal circulation realizes the high-efficiency mass transfer function among iron powder, activated carbon and granular sludge in a suspension state, and effectively solves the problem that a fixed bed is easy to block. Meanwhile, the specific surface area of the suspended fine iron powder and the activated carbon is large, so that the reaction efficiency is greatly improved;
5. under the action of micro-electric field oxidation-reduction, zero-valent iron reduction, activated carbon adsorption/biological oxidation and anaerobic microorganism coupling, the organic matter difficult to degrade effectively utilizes the liquid flow internal circulation to strengthen the inter-phase mass transfer effect through a multidimensional cooperative microorganism chain system, fully plays the role of micro-electrochemistry and biochemical coupling oriented reduction of the organic matter and realizes the effective and gradient mineralization of the organic pollutant.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a load circulation anaerobic biological water treatment apparatus according to an embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth. However, the present invention may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the invention, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
FIG. 1 is a schematic structural view of a load circulation anaerobic biological water treatment apparatus according to an embodiment of the present invention. As shown in fig. 1:
the loading circulation anaerobic biological water treatment device comprises a treatment container, wherein a loading circulation main reaction area is arranged in the treatment container, an external power driving circulation mechanism is arranged in the loading circulation main reaction area, and the external power driving circulation mechanism establishes liquid flow internal circulation in the loading circulation main reaction area; adding iron powder 5 and active carbon 7 into the loading circulation main reaction zone; iron powder 5, active carbon 7 and granular sludge 6 in the sewage jointly participate in the liquid flow internal circulation.
Further, the external power driving circulation mechanism comprises an inner cylinder 4, an axial flow impeller 2 and a motor 21; the inner cylinder 4 is fixed in the loading circulation main reaction zone through a rib plate 15; the inner cylinder 4 divides the loading circulation main reaction area into an upflow area and a downflow area; the upflow zone is surrounded by the inner cylinder 4, and the downflow zone is the area which is formed by the inner cylinder 4 and the inner wall of the processing container; the axial flow impeller 2 is arranged at the lower part of the inner cylinder 4; the axial flow impeller 2 operates to promote the sewage in the treatment container to establish a circulating flow between the upflow zone and the downflow zone.
Furthermore, the loading circulation anaerobic biological water treatment device also comprises an inclined plate three-phase separation area and a fixed biological membrane area; a plurality of inclined plates are arranged in the inclined plate three-phase separation area; soft filler is arranged in the fixed biological membrane area.
Furthermore, the inclined plate three-phase separation area, the fixed biomembrane area and the loading circulation main reaction area are sequentially distributed in the treatment container from top to bottom.
Further, the treatment container includes an outer tub 3; the bottom of the outer cylinder 3 is provided with a seal head 1, and the outer cylinder 3 is provided with a water inlet 16, a water outlet 13, an upper cover plate 12, a feeding hopper 11, a water collecting weir 10 and a manhole 14. The outlet of the hopper 11 extends into the main reaction zone of the load cycle.
Further, the motor 21 is fixed to the lower portion of the outer cylinder 3 through a bearing mechanism; the motor 21 drives the axial-flow impeller 2 to rotate via the shaft 22.
Further, the bearing mechanism comprises a cylindrical support 23, a nylon bearing 18 and a cover plate 19; a support 23 is welded at the lower part of the seal head 1, a motor 21 is connected with a shaft 22 through a coupler 20, the shaft 22 is connected with a nylon bearing 18, a cover plate 19 is arranged in the support 23 between the coupler 20 and the nylon bearing 18, the cover plate 19 is provided with a central hole, and a nylon bearing is additionally arranged at the position where the shaft 22 penetrates through the central hole.
Further, the bottom of the outer cylinder 3 has a skirt 17, and the outer cylinder 3 is bridged on a foundation 24 by the skirt 17; the height of the foundation 24 satisfies the establishment of the motor 21 and the bearing mechanism.
Furthermore, an inclined plate three-phase separator 9 is arranged in the inclined plate three-phase separation area, and an inclined plate is arranged in the inclined plate three-phase separator 9; the fixed biological membrane area is provided with a fiber bundle stuffing box 8, and soft stuffing is arranged in the fiber bundle stuffing box 8.
Furthermore, the particle size of the iron powder is 50-100um, and the particle size of the activated carbon is 300-500 um.
Specifically, a method for performing enhanced anaerobic water treatment using a load-cycle anaerobic biological water treatment apparatus will be described with reference to fig. 1:
(1) adding sewage into the outer barrel 3 through a lower water inlet 16, loading iron powder 5 and granular activated carbon 7 into an anaerobic reaction zone (a loading circulation main reaction zone) by using a loading hopper 11, starting an axial flow pump to promote the sewage to carry out liquid flow internal circulation between an upflow zone where the inner barrel 4 is located and a downflow zone where the inner barrel 4 and the outer barrel 3 are administered, wherein the iron powder 5, the granular activated carbon 7 and the granular sludge 6 participate in the liquid flow internal circulation, and the iron powder 5, the granular activated carbon 7 and the granular sludge 6 are suspended in the loading circulation main reaction zone to carry out interphase mass transfer, so that the biological reaction rate is effectively improved.
(2) In the process of liquid flow internal circulation, the iron powder 5 and the granular activated carbon 7 form a micro electric field, the micro electric field generates electrochemical oxidation and electrochemical reduction, and the electrochemical oxidation and electrochemical reduction act on strong electron groups such as azo, aromatic and chlorinated substances in the sewage to reduce the biological toxicity of the sewage.
(3) The iron powder 5, the granular activated carbon 7 and the granular sludge 6 are in a suspension state under the action of liquid flow internal circulation, and the granular sludge 6 is in contact with the iron powder 5, so that under the action of zero-valent iron powder reduction, an electron donor is provided for methane bacteria, the metabolism of the methane bacteria is promoted, and the anaerobic biological oxidation efficiency is improved.
(4) The granular activated carbon 7 in the suspension state has the functions of biological adsorption, replacement and biological oxidation, and reduces the biological inhibition of organic matters.
(5) The sewage is treated by the loading circulation main reaction zone and then sequentially flows through the fixed biological membrane zone and the inclined plate three-phase separation zone, anaerobic microorganism adhesion growth is carried out on the fixed biological membrane zone, and mud-water-gas three-phase separation is carried out on the inclined plate three-phase separation zone.
(6) The sewage passes through the inclined plate three-phase separation zone, then crosses the water collection weir 10 and then is discharged from the water outlet 13.
Specifically, the method for performing enhanced anaerobic water treatment by using the loading circulation anaerobic biological water treatment device can effectively reduce the biotoxicity and biological inhibitability of the organic wastewater difficult to degrade in the field of petrochemical industry, improve the oxidation efficiency of anaerobic organisms, and effectively improve the biological reaction rate for detailed explanation:
in the liquid flow internal circulation process, because of the potential difference between the ferrite and the carbon, a micro electric field is established between the iron powder and the activated carbon, the ferrite loses electrons to generate iron ions which are oxidized, strong electron groups such as azo, aromatic and chlorinated substances in the sewage are reduced, so that macromolecular organic matters containing the strong electron groups such as the azo, the aromatic and the chlorinated substances in the sewage are converted into small molecular organic matters, the biodegradability (B/C ratio) of the large molecular organic matters is improved from 0.07 to 0.30, and the biotoxicity of the sewage is effectively reduced.
And (II) in the liquid flow internal circulation process, the iron powder, the activated carbon and the granular sludge in the sewage are in a turbulent flow state, so that the iron powder, the activated carbon and the granular sludge are subjected to mass transfer among phases, and the biological reaction rate is improved.
(III) the iron powder, the activated carbon and the granular sludge are in a suspension state under the action of the internal circulation of the liquid flow; in a suspension state, firstly, the granular sludge is contacted with the iron powder, and the zero-valent iron powder loses electrons, so that an electron donor is provided for methane bacteria, the metabolism of the methane bacteria is promoted, and the anaerobic oxidation efficiency of organic matters is improved; secondly, the active carbon adsorbs organic components, wherein the organic components which are difficult to degrade effectively reduce the biological inhibition of the organic components which are difficult to degrade on anaerobic microorganisms due to the adsorption effect of the active carbon; in addition, as the refractory organic component is adsorbed in the activated carbon carrier, the retention time of the refractory organic component in the anaerobic biological treatment system is increased, and the activated carbon always exists in the treatment container, the refractory organic component is finally biodegraded, the adsorption position of the activated carbon is left vacant and is adsorbed again, and the cyclic adsorption, biological oxidation and replacement functions effectively improve the biological oxidation efficiency.
And (IV) the sewage sequentially flows through the fixed biological membrane area and the inclined plate three-phase separation area after being treated by the loading circulation main reaction area, soft fillers are arranged on the fixed biological membrane area, the surfaces of the fillers are coated with anaerobic biological membranes, and the fine treatment of organic components in the sewage is realized under the action of anaerobic microorganisms. The inclined plate three-phase separation area is provided with parallel inclined plates, the inclination angle of the inclined plates ranges from 45 degrees to 60 degrees, every two inclined plates form a precipitation separation unit, gas moves upwards along the lower surface of the upper inclined plate, sludge slides downwards along the upper surface of the lower inclined plate under the action of gravity, and the three-phase separation effect of the sludge, the water and the gas is realized due to the speed difference existing in the movement among gas phase, water phase and solid phase among the inclined plates.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions of equivalents, improvements and the like can be made without departing from the spirit of the invention, and these are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A load cycle anaerobic biological water treatment device, comprising:
a processing vessel;
a loading circulation main reaction zone is arranged in the treatment container;
an external power driving circulation mechanism is arranged in the loading circulation main reaction zone;
the external power driving circulation mechanism establishes liquid flow internal circulation in the loading circulation main reaction zone;
adding iron powder and active carbon into the loading circulation main reaction zone;
the iron powder, the activated carbon and granular sludge in the sewage jointly participate in the liquid flow internal circulation;
the external power drive circulation mechanism comprises:
the axial-flow impeller comprises an inner cylinder, an axial-flow impeller and a motor;
the inner cylinder is fixed in the loading circulation main reaction zone;
the inner cylinder divides the loading circulation main reaction area into an upflow area and a downflow area;
the ascending area is surrounded by the inner cylinder, and the descending area is the area which is formed by the inner cylinder and the inner wall of the processing container;
the axial flow impeller is arranged at the bottom of the inner barrel;
the motor drives the axial flow impeller to operate, so that sewage in the treatment container circularly flows between the upflow region and the downflow region.
2. The load cycle anaerobic biological water treatment device of claim 1, further comprising:
an inclined plate three-phase separation area and a fixed biological membrane area;
a plurality of inclined plates are arranged in the inclined plate three-phase separation zone;
the inclined plate is used for separating mud, water and gas;
soft filler is arranged in the fixed biological membrane area;
the surface of the soft filler is coated with an anaerobic biological film for the adhesion or/and immobilized growth of anaerobic microorganisms.
3. The load cycle anaerobic biological water treatment device of claim 2, wherein:
the inclined plate three-phase separation area, the fixed biological membrane area and the loading circulation main reaction area are sequentially distributed in the treatment container from top to bottom.
4. The load cycle anaerobic biological water treatment device of claim 2 wherein the treatment vessel comprises: an outer cylinder;
the bottom of the outer cylinder is provided with a seal head, and the outer cylinder is provided with a water inlet, a water outlet, an upper cover plate, a loading hopper and a water collecting weir;
the outlet of the hopper extends into the main reaction zone of the load cycle.
5. The load cycle anaerobic biological water treatment device of claim 2, wherein:
the inclined plate three-phase separation area is internally provided with an inclined plate three-phase separator;
the inclined plate three-phase separator is internally provided with a plurality of inclined plates;
the fixed biological membrane area is provided with a fiber bundle stuffing box;
the soft filler is arranged in the fiber bundle stuffing box.
6. The load cycle anaerobic biological water treatment device of claim 5, wherein:
the inclined plates are arranged in parallel;
the inclined plate has an inclination angle of 45-60 degrees.
7. The load cycle anaerobic biological water treatment device according to any one of claims 2 to 6, wherein:
the particle size of the iron powder is 50-100um, and the particle size of the activated carbon is 300-500 um.
8. An enhanced anaerobic water treatment method, comprising:
(1) adding iron powder and activated carbon into the load circulation anaerobic biological water treatment device of any one of claims 2 to 7, and communicating a water inlet and a water outlet;
(2) starting a motor, and establishing liquid flow internal circulation in a loading circulation main reaction zone of the loading circulation anaerobic biological water treatment device; in the process of liquid flow internal circulation, on the first aspect, a micro electric field is established between the iron powder and the activated carbon, the ferrite loses electrons, and electrons obtained by strongly pulling electron groups in the sewage are reduced, so that macromolecular organic matters with the strongly pulled electron groups are converted into micromolecular organic matters, and the biological toxicity of the sewage is reduced;
in the second aspect, the iron powder is in contact with granular sludge in the sewage, the iron powder loses electrons, an electron donor is provided for methane bacteria, the metabolism of the methane bacteria is promoted, and the anaerobic oxidation efficiency is improved;
in a third aspect, the activated carbon adsorbs refractory organic components in the wastewater, reduces the biological inhibition effect of the refractory organic components on anaerobic microorganisms, prolongs the residence time of the refractory organic components in the loaded circulating anaerobic biological water treatment device, and increases the biodegradation degree of the refractory organic components;
(3) the sewage flows through the fixed biological membrane area and the inclined plate three-phase separation area in sequence, and anaerobic microorganism sewage treatment is carried out on the fixed biological membrane area; and three-phase separation of mud, water and gas is carried out in the inclined plate three-phase separation area.
9. The enhanced anaerobic water treatment method according to claim 8, wherein:
the strong electron-withdrawing group is one or a mixture of several of azo strong electron-withdrawing groups, aromatic strong electron-withdrawing groups or chloro strong electron-withdrawing groups.
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| JP2005000784A (en) * | 2003-06-11 | 2005-01-06 | Shiyoutetsu Kin | Closed water area cleaning facility |
| CN101921017A (en) * | 2009-06-09 | 2010-12-22 | 深圳市环境工程科学技术中心 | Water plant imitating biological carrier, polyurethane composite material and water quality purifying technology |
| CN104529091A (en) * | 2015-01-08 | 2015-04-22 | 北京中瑞佳亿环境科技有限公司 | Sewage treatment device and method for micro-power multi-medium fixed biological filter |
| CN105502762A (en) * | 2016-01-06 | 2016-04-20 | 南京中创水务集团股份有限公司 | Multi-cycle oxidation hybrid hydrolysis acidizing reaction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005000784A (en) * | 2003-06-11 | 2005-01-06 | Shiyoutetsu Kin | Closed water area cleaning facility |
| CN101921017A (en) * | 2009-06-09 | 2010-12-22 | 深圳市环境工程科学技术中心 | Water plant imitating biological carrier, polyurethane composite material and water quality purifying technology |
| CN104529091A (en) * | 2015-01-08 | 2015-04-22 | 北京中瑞佳亿环境科技有限公司 | Sewage treatment device and method for micro-power multi-medium fixed biological filter |
| CN105502762A (en) * | 2016-01-06 | 2016-04-20 | 南京中创水务集团股份有限公司 | Multi-cycle oxidation hybrid hydrolysis acidizing reaction device |
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