CN207002474U - A kind of middle concentration ammonia nitrogen wastewater pretreatment unit - Google Patents
A kind of middle concentration ammonia nitrogen wastewater pretreatment unit Download PDFInfo
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- CN207002474U CN207002474U CN201720916883.XU CN201720916883U CN207002474U CN 207002474 U CN207002474 U CN 207002474U CN 201720916883 U CN201720916883 U CN 201720916883U CN 207002474 U CN207002474 U CN 207002474U
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- sedimentation basin
- stirring sedimentation
- stirring
- ammonia nitrogen
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Abstract
The utility model discloses a kind of middle concentration ammonia nitrogen wastewater pretreatment unit,Include water inlet pipe successively according to water body flow direction,Cesspool,First stirring sedimentation basin,Second stirring sedimentation basin,Discharge bay and outlet conduit,The lower section of first stirring sedimentation basin and the second stirring sedimentation basin is provided with filter press and guanite reuse tank,Calcium phosphate recovery pond,Water inlet pipe connects with cesspool,Cesspool is connected by pumping conduit and suction pump with the first stirring sedimentation basin,First stirring sedimentation basin is connected by pumping conduit and suction pump with the second stirring sedimentation basin,Second stirring sedimentation basin is connected by pumping conduit and suction pump with discharge bay,Outlet conduit connects with discharge bay,First stirring sedimentation basin,The precipitation outlet of second stirring sedimentation basin bottom is respectively arranged on above filter press and is provided with valve,Filter press passes through pipeline and guanite reuse tank respectively,Calcium phosphate recovery pond connects.The present apparatus can reduce the ammonia nitrogen concentration in waste water, can also reclaim guanite and calcium phosphate.
Description
Technical field
The utility model is specifically related to a kind of middle concentration ammonia nitrogen wastewater pretreatment unit.
Background technology
Ammonia nitrogen is one of major reason for causing body eutrophication to pollute, with developing rapidly for current industrial or agricultural, ammonia
The discharge capacity of polluted by nitrogen waste water is increasing, in addition to sanitary sewage, animal excrements, also substantial amounts of industrial wastewater.At present
The pretreatment of industrial ammonia nitrogen waste water has that equipment investment cost is big, and energy resource consumption is high, and the cycle of operation is short, and outlet effect is undesirable
The shortcomings of.The reaction principle of the guanite precipitation method is Mg2+、PO4 3-And NH4+Reaction generation MgNH in the basic conditions4PO4·
6H2O crystal settlings, so as to remove the ammonia nitrogen in waste water.Reaction equation is as follows：
Mg2++NH4 ++PO4 3-+6H2O→MgNH4PO4·6H2O↓ (1)
The advantages of this method is that operating procedure is simple, and reaction is fast, and clearance is high, and the guanite of recovery can be used as slow-release fertilizer
Material.
The content of the invention
The purpose of this utility model is to provide a kind of middle concentration ammonia nitrogen wastewater pretreatment unit.
Above-mentioned purpose is achieved by the following technical solution：
A kind of ammonia nitrogen waste water pretreatment unit, stirred successively including water inlet pipe, cesspool, first according to water body flow direction
Mix the lower section of sedimentation basin, the second stirring sedimentation basin, discharge bay and outlet conduit, the first stirring sedimentation basin and the second stirring sedimentation basin
Provided with filter press and guanite reuse tank, calcium phosphate recovery pond, water inlet pipe connects with cesspool, and cesspool passes through pumping conduit
Connected with suction pump with the first stirring sedimentation basin, the first stirring sedimentation basin is precipitated by pumping conduit and suction pump and the second stirring
Pond is connected, and the second stirring sedimentation basin is connected by pumping conduit and suction pump with discharge bay, and outlet conduit connects with discharge bay, the
The precipitation outlet of one stirring sedimentation basin, the second stirring sedimentation basin bottom is respectively arranged on above filter press and is provided with valve, filter press
Connected respectively by pipeline with guanite reuse tank, calcium phosphate recovery pond.
Preferably, it is provided with automatic stirrer in the first stirring sedimentation basin and the second stirring sedimentation basin.
Preferably, pH automatic regulating systems are provided with the first stirring sedimentation basin.
The beneficial effects of the utility model：
Device provided by the utility model is simple to operate, and the reaction time is short, and resources and energy consumption is low, in can not only reducing
Ammonia nitrogen concentration in concentration ammonia nitrogen wastewater, reach the standard of sewage effluent treatment plant of enterprise, can also reclaim guanite and
Calcium phosphate, secondary use is carried out, and parts can be also achieved by the prior art used by the utility model device.
Brief description of the drawings
Fig. 1 is the utility model schematic device；
In figure：1st, water inlet pipe；2nd, cesspool；3rd, suction pump；4th, agitator；5th, the first stirring sedimentation basin；6th, pH is automatic
Regulating system；7th, guanite reuse tank；8th, valve；9th, filter press；10th, the second stirring sedimentation basin；11st, calcium phosphate recovery pond；12、
Discharge bay；13rd, outlet conduit.
Embodiment
The technical solution of the utility model is specifically introduced below in conjunction with the accompanying drawings.
A kind of ammonia nitrogen waste water pretreatment unit as shown in Figure 1, include successively according to water body flow direction water inlet pipe 1,
Cesspool 2, first stirs sedimentation basin 5, second and stirs sedimentation basin 6, discharge bay 12 and outlet conduit 13, the first stirring sedimentation basin 5
Be provided with filter press 9 and guanite reuse tank 7, calcium phosphate recovery pond 11 with the lower section of the second stirring sedimentation basin 10, water inlet pipe 1 and
Cesspool 2 is connected, and cesspool 2 is connected by pumping conduit and suction pump 3 with the first stirring sedimentation basin 5, the first stirring sedimentation basin 5
Connected by pumping conduit and suction pump with the second stirring sedimentation basin 10, the second stirring sedimentation basin 10 is by pumping conduit and draws water
Pump connects with discharge bay 12, and outlet conduit 13 connects with discharge bay 12, and the first stirring sedimentation basin 5, second stirs the bottom of sedimentation basin 10
The precipitation outlet in portion is respectively arranged on the top of filter press 9 and is provided with valve 8, and filter press 9 passes through pipeline and guanite reuse tank respectively
7th, calcium phosphate recovery pond 11 connects.
Wherein, the first stirring sedimentation basin 5 and second, which stirs, is respectively equipped with automatic stirrer 4 in sedimentation basin 10, the first stirring
PH automatic regulating systems 6 are provided with sedimentation basin 5.
In use, middle concentration ammonia nitrogen wastewater is entered into 2 cesspools under the effect of 1 water inlet pipe, by 3 suction pumps, draw water into
Enter the first reaction settling basin 5, in a certain amount of sodium hydroxide of the automatic feeding of its internal pH automatic regulating system 6 or hydrochloric acid, adjust
PH is saved to setting value, then a certain amount of Na added2HPO4, make its dissolving by the stirring of agitator 4, then proportionally add
A certain amount of MgCl2, stir 20-30 minutes, generation guanite precipitation, removed in waste water under certain rotating speed by agitator
Ammonia nitrogen, natural sedimentation after reacting completely, extract supernatant with pipeline and enter the second stirring sedimentation basin 10, sediment is passed through into lower end
Valve 8, filter press 9 is passed through, then moves into guanite recovery pond 7, reclaimed.Added in the second stirring sedimentation basin 10 a certain amount of
Ca (OH)2, 10-20 minutes are stirred under certain rotating speed by agitator, are reacted with calcium ion and remaining phosphate radical, are removed
Phosphorus caused by phosphate radical is added to pollute.Precipitated after reaction completely, extracting supernatant with pipeline enters discharge bay 12, will precipitate
Thing is passed through filter press and is compressed by lower end valve, then moves into calcium phosphate recovery pond 11, is reclaimed.
In the embodiment, the first stirring sedimentation basin 5 and second stirs sedimentation basin 10 and shares a filter press 9, by the press filtration
Machine by precipitation press filtration and is delivered to guanite recovery pond 7, calcium phosphate recovery pond 11 respectively, and specific method is：Enter when to guanite
During row separation, the lower valve of the second stirring pool 10 is closed, the first stirring lower valve of sedimentation basin 5 is opened, using filter press 9 to it
Sediment carries out press filtration, sediment is entered guanite recovery pond 7, cleaning filter press 9 after separating completely.Carried out when to calcium phosphate
During separation, the lower valve of the first stirring pool 5 is closed, the second stirring lower valve of sedimentation basin 10 is opened, its sediment is pressed
Filter, sediment is transported to calcium phosphate recovery pond 11.
Device provided by the utility model is simple to operate, and the reaction time is short, and resources and energy consumption is low, in can not only reducing
Ammonia nitrogen concentration in concentration ammonia nitrogen wastewater, the adapter standard of industrial park sewage treatment plant is reached, birds droppings can also be reclaimed
Stone and calcium phosphate, secondary use is carried out, and parts can also pass through prior art used by the utility model device
Realize.
The effect of above-described embodiment is only that explanation essentiality content of the present utility model, but is not limited thereto and determines, this
Simple modifications or substitutions on the basis of utility model do not depart from the essence and protection domain of technical solutions of the utility model.
Claims (3)
- A kind of 1. ammonia nitrogen waste water pretreatment unit, it is characterised in that：Include water inlet pipe, sewage successively according to water body flow direction Pond, the first stirring sedimentation basin, the second stirring sedimentation basin, discharge bay and outlet conduit, the first stirring sedimentation basin and the second stirring are heavy The lower section in shallow lake pond is provided with filter press and guanite reuse tank, calcium phosphate recovery pond, water inlet pipe connect with cesspool, and cesspool leads to Cross pumping conduit and suction pump connect with the first stirring sedimentation basin, first, which stirs sedimentation basin, passes through pumping conduit and suction pump and the Two stirring sedimentation basin connections, the second stirring sedimentation basin are connected by pumping conduit and suction pump with discharge bay, and outlet conduit is with going out Pond connects, and the precipitation outlet of the first stirring sedimentation basin, the second stirring sedimentation basin bottom is respectively arranged on above filter press and is provided with Valve, filter press are connected by pipeline with guanite reuse tank, calcium phosphate recovery pond respectively.
- 2. ammonia nitrogen waste water pretreatment unit according to claim 1, it is characterised in that：The first stirring sedimentation basin and the Automatic stirrer is provided with two stirring sedimentation basins.
- 3. ammonia nitrogen waste water pretreatment unit according to claim 1, it is characterised in that：Set in the first stirring sedimentation basin There are pH automatic regulating systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720916883.XU CN207002474U (en) | 2017-07-26 | 2017-07-26 | A kind of middle concentration ammonia nitrogen wastewater pretreatment unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720916883.XU CN207002474U (en) | 2017-07-26 | 2017-07-26 | A kind of middle concentration ammonia nitrogen wastewater pretreatment unit |
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| CN207002474U true CN207002474U (en) | 2018-02-13 |
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| CN201720916883.XU Active CN207002474U (en) | 2017-07-26 | 2017-07-26 | A kind of middle concentration ammonia nitrogen wastewater pretreatment unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395800A (en) * | 2019-08-27 | 2019-11-01 | 江南大学 | A kind of preparation method and application for denitrification additional carbon |
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2017
- 2017-07-26 CN CN201720916883.XU patent/CN207002474U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395800A (en) * | 2019-08-27 | 2019-11-01 | 江南大学 | A kind of preparation method and application for denitrification additional carbon |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200403 Address after: 210000, No. 399, South male road, dragon pond street, Liuhe District, Jiangsu, Nanjing Patentee after: NANJING SHUIZHILING ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: The Olympic Avenue in Jianye District of Nanjing city of Jiangsu Province, No. 69 210019 Patentee before: NANJING UNIVERSITY OF INFORMATION SCIENCE & TECHNOLOGY |