CN204824439U - Natural pond liquid preprocessing device - Google Patents

Natural pond liquid preprocessing device Download PDF

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Publication number
CN204824439U
CN204824439U CN201520440674.3U CN201520440674U CN204824439U CN 204824439 U CN204824439 U CN 204824439U CN 201520440674 U CN201520440674 U CN 201520440674U CN 204824439 U CN204824439 U CN 204824439U
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CN
China
Prior art keywords
natural pond
liquid
air
pond liquid
unit
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520440674.3U
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Chinese (zh)
Inventor
杨蕴毅
华怀峰
徐立明
郑永权
吴凯
秦岭
王超林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Siweibo Biological Technology Co Ltd
NANJING YUANKAI BIOLOGICAL ENERGY ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Original Assignee
Jiangsu Siweibo Biological Technology Co Ltd
NANJING YUANKAI BIOLOGICAL ENERGY ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Jiangsu Siweibo Biological Technology Co Ltd, NANJING YUANKAI BIOLOGICAL ENERGY ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd filed Critical Jiangsu Siweibo Biological Technology Co Ltd
Priority to CN201520440674.3U priority Critical patent/CN204824439U/en
Application granted granted Critical
Publication of CN204824439U publication Critical patent/CN204824439U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a natural pond liquid preprocessing device, including flocculation and precipitation portion for carry out flocculation and precipitation to natural pond liquid, remove the heavy metal ion removal ion, air supporting portion for carry out air supporting to the natural pond liquid behind flocculation and precipitation and handle, get rid of the greasy dirt in the liquid of natural pond, ozonization portion for natural pond liquid to the channel qi floats after handling is handled, gets rid of organic macromolecule. Get rid of heavy metal ion in the liquid of natural pond, oil slick and handle and biochemical treatment leads to the fact organic macromolecule of destruction step by step to follow -up membrane, had both realized consolidating of natural pond liquid. And the vapour separation is favorable to follow -up advanced treatment again.

Description

A kind of natural pond liquid pretreatment unit
Technical field
The utility model belongs to natural pond liquid process field, is specifically related to a kind of natural pond liquid pretreatment unit.
Background technology
Natural pond liquid to ferment the biogas residue liquid produced through anaerobic reactor, and natural pond liquid waste water quality has following features: 1, solid colloid content is high, is difficult to solid-liquid separation.Natural pond liquid class after fermentation contains a large amount of gluey fine particles, colloid waits organic compound with the acid of a large amount of detritus, and with materials such as N P and K, is good base manure raw material, and analysis is the raw material of good foliage organic fertilizer and ferment fertilizer theoretically.But due in the process of anaerobism natural pond water, a large amount of nitrogenous compounds is after hydrolysis, fail full methanation, form nitrogenous compound or aminocompound, these materials are with stronger positive polarity, and electrically identical with solidity thing, produce resistance, cause the state of being suspended, cause conventional isolation techniques to be difficult to solid/liquid separation; 2, the biodegradability of natural pond liquid is poor.
In process prepared by biogas, the overstand of anaerobism, under the condition of anaerobism, the degradation rate of BOD will far away faster than the degradation rate of COD, and therefore, the biodegradability of natural pond liquid is poor, is difficult to continue biochemical treatment.But in order to advance its higher-grade to utilize further, improve the economic benefit of centralization-breeding factory fowl and animal excrement process engineering, reasonable resource utilization etc., concentrated minimizing and the recycling of development natural pond liquid will be the new direction that natural pond liquid utilizes.Therefore, be necessary to carry out pre-treatment to natural pond liquid, by colloidal particle wherein and the macromolecular substance removal affecting subsequent disposal.
Utility model content
Utility model object: be solve problems of the prior art, the utility model provides a kind of natural pond liquid pretreatment unit, by affect the removal of the heavy metal ion of successive depths process, colloidal particle and oil slick, for follow-up film process is provided convenience.
Technical scheme: for realizing above-mentioned technical purpose, the utility model provides a kind of natural pond liquid pretreatment unit, comprising:
Flocculation sediment unit, for carrying out flocculation sediment, heavy-metal ion removal to described natural pond liquid;
Air flotation cell, is connected with described flocculation sediment unit, for carrying out air-flotation process to the natural pond liquid after flocculation sediment, removes the greasy dirt in the liquid of described natural pond;
With ozonize unit, being connected with described air supporting portion, for processing the described natural pond liquid after air-flotation process, removing organic macromolecule.
Particularly, described flocculation sediment unit comprises the equalizing tank, lift pump and the flocculation tank that connect successively, is provided with mixing component in described reaction tank.
Described air flotation cell comprises air compressor, sealing dissolving, force (forcing) pump, air flotation pool, dross box and pressure filter, wherein, air compressor is connected with sealing dissolving, described air compressor is used for pressurized air and pressurized air is delivered to sealing dissolving, and described sealing dissolving is for mixing pressurized air and natural pond liquid;
Described force (forcing) pump is connected with sealing dissolving, for the mixed solution pressurization to the natural pond liquid in sealing dissolving and air;
Described air flotation pool one end is connected with dissolving, and the other end is connected with dross box, pressure filter successively.
In order to promote air flotation effect, described air flotation pool is connected with reflux tank simultaneously, and the parting liquid in a part of air flotation pool needs to be back in reflux tank, then is entered in sealing dissolving by force (forcing) pump.
Described ozonize unit comprises pure oxygen generating unit, ozone generating unit and ozone natural pond liquid mixed cell.
Preferably, described ozone natural pond liquid mixed cell is any one of pvdf membrane contactor and PTFE film contactor
Beneficial effect: compared with prior art, the utility model tool has the following advantages: the utility model provides a kind of natural pond liquid pretreatment unit, comprise flocculation sediment portion, air supporting portion and ozonize portion, the organic macromolecule removed the heavy metal ion in the liquid of natural pond, oil slick step by step and subsequent film process and biochemical treatment are damaged, what both achieved natural pond liquid consolidates-vapour separation, is conducive to again successive depths process.
Accompanying drawing explanation
Fig. 1 is the structural representation of natural pond of the present utility model liquid pretreatment unit.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
Fig. 1 is the structural representation of the natural pond liquid pretreatment unit of the present embodiment.
Natural pond of the present utility model liquid pretreatment unit comprises the flocculation sediment unit, air flotation cell and the ozonize unit that are linked in sequence.Flocculation sediment unit is used for carrying out flocculation sediment to natural pond liquid, removes heavy metal ion wherein; Air flotation cell is connected with flocculation sediment unit, for carrying out air-flotation process to the natural pond liquid after flocculation sediment, removes the oil slick in the liquid of natural pond; Ozonize unit is connected with air flotation cell, for processing the natural pond liquid after air-flotation process, removes the prejudicial organic macromolecule of film.
Flocculation sediment unit comprises equalizing tank, lift pump and flocculation tank.Natural pond liquid stores now in equalizing tank, and establish diving mixer that natural pond liquid is fully stirred homogeneous in pond, natural pond liquid is promoted in flocculation tank through lift pump, adds flocculation agent or coagulating agent reacts, and enters in air flotation cell more afterwards.
Flocculation agent can select calcium hydroxide.Calcium hydroxide can regulate natural pond liquid ph, makes most of heavy metal ion form precipitation of hydroxide or hydrous oxide precipitation, makes the content of heavy metal ion in the liquid of pretreated natural pond up to standard, it also avoid the destruction of heavy metal ion to dewatering microporous film in subsequent film processing unit simultaneously.In addition, calcium hydroxide price is lower, can reduce running cost.
Air flotation cell comprises air compressor, sealing dissolving, force (forcing) pump, air flotation pool, dross box and pressure filter, air compressor is connected with sealing dissolving, wherein air compressor is used for pressurized air and pressurized air is delivered to sealing dissolving, and sealing dissolving is for mixing pressurized air and natural pond liquid.Sealing dissolving is used for pressurized air air and the mixing of natural pond liquid; The mixed solution of force (forcing) pump to the natural pond liquid in sealing dissolving and air pressurizes.Air flotation pool is for holding the liquid of releasing in dissolving, liquid in sealing dissolving suddenly reduces to normal pressure in air flotation pool, and the air being dissolved in water, with micro-bubble form, is separated out from water, suspended particle in water is carried and bubbles through the water column, realize solid-liquid separation.The suspended substance be separated is placed on to be put in dross box, after pressure filter pressure-filteration drying, for the preparation of compost.
In order to ensure air flotation effect, the parting liquid in a part of air flotation pool needs to be back in reflux tank, then is entered in sealing dissolving by force (forcing) pump.
Ozonize portion comprises pure oxygen generating unit, ozone generating unit and ozone natural pond liquid mixed cell.Ozone natural pond liquid mixed cell is the membrane contactor prepared with hydrophobic membrane material, preferred pvdf membrane contactor or PTFE film contactor.Ozonize portion processes the natural pond liquid through air-flotation process, is to alleviate or eliminating organic macromolecule completely to the adsorption fouling of the microporous membrane adopted in subsequent film treating processes.
The utility model provides a kind of natural pond liquid pretreatment unit, comprise flocculation sediment portion, air supporting portion and ozonize portion, the organic macromolecule removed the heavy metal ion in the liquid of natural pond, oil slick step by step and subsequent film process and biochemical treatment are damaged, what both achieved natural pond liquid consolidates-vapour separation, is conducive to again successive depths process.

Claims (6)

1. a natural pond liquid pretreatment unit, is characterized in that, comprising:
Flocculation sediment unit, for carrying out flocculation sediment, heavy-metal ion removal to described natural pond liquid;
Air flotation cell, is connected with described flocculation sediment unit, for carrying out air-flotation process to the natural pond liquid after flocculation sediment, removes the greasy dirt in the liquid of described natural pond;
With ozonize unit, being connected with described air supporting portion, for processing the described natural pond liquid after air-flotation process, removing organic macromolecule.
2. natural pond according to claim 1 liquid pretreatment unit, is characterized in that, described flocculation sediment unit comprises the equalizing tank, lift pump and the flocculation tank that connect successively, is provided with mixing component in described reaction tank.
3. natural pond according to claim 1 liquid pretreatment unit, it is characterized in that, described air flotation cell comprises air compressor, sealing dissolving, force (forcing) pump, air flotation pool, dross box and pressure filter, wherein, air compressor is connected with sealing dissolving, described air compressor is used for pressurized air and pressurized air is delivered to sealing dissolving, and described sealing dissolving is for mixing pressurized air and natural pond liquid;
Described force (forcing) pump is connected with sealing dissolving, for the mixed solution pressurization to the natural pond liquid in sealing dissolving and air;
Described air flotation pool one end is connected with dissolving, and the other end is connected with dross box, pressure filter successively.
4. natural pond according to claim 3 liquid pretreatment unit, is characterized in that, described air flotation pool is connected with reflux tank simultaneously, and the parting liquid in a part of air flotation pool needs to be back in reflux tank, then is entered in sealing dissolving by force (forcing) pump.
5. natural pond according to claim 1 liquid pretreatment unit, is characterized in that, described ozonize unit comprises pure oxygen generating unit, ozone generating unit and ozone natural pond liquid mixed cell.
6. natural pond according to claim 5 liquid pretreatment unit, is characterized in that, described ozone natural pond liquid mixed cell is any one of pvdf membrane contactor and PTFE film contactor.
CN201520440674.3U 2015-06-24 2015-06-24 Natural pond liquid preprocessing device Expired - Fee Related CN204824439U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520440674.3U CN204824439U (en) 2015-06-24 2015-06-24 Natural pond liquid preprocessing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520440674.3U CN204824439U (en) 2015-06-24 2015-06-24 Natural pond liquid preprocessing device

Publications (1)

Publication Number Publication Date
CN204824439U true CN204824439U (en) 2015-12-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105016516A (en) * 2015-06-24 2015-11-04 南京元凯生物能源环保工程有限公司 Biogas slurry pretreatment device
CN106044915A (en) * 2016-07-14 2016-10-26 宁波威博环保科技有限公司 Production wastewater treatment system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105016516A (en) * 2015-06-24 2015-11-04 南京元凯生物能源环保工程有限公司 Biogas slurry pretreatment device
CN106044915A (en) * 2016-07-14 2016-10-26 宁波威博环保科技有限公司 Production wastewater treatment system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151202

Termination date: 20170624

CF01 Termination of patent right due to non-payment of annual fee