CN107555762A - A kind of flyash replaces the method and device of Lime And Sewage Sludge dehydration - Google Patents
A kind of flyash replaces the method and device of Lime And Sewage Sludge dehydration Download PDFInfo
- Publication number
- CN107555762A CN107555762A CN201710918559.6A CN201710918559A CN107555762A CN 107555762 A CN107555762 A CN 107555762A CN 201710918559 A CN201710918559 A CN 201710918559A CN 107555762 A CN107555762 A CN 107555762A
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- Prior art keywords
- sludge
- flyash
- lime
- dehydration
- sewage
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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.)
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- 239000010881 fly ash Substances 0.000 title claims abstract description 40
- 230000018044 dehydration Effects 0.000 title claims abstract description 24
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 24
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 21
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 21
- 239000004571 lime Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000010801 sewage sludge Substances 0.000 title claims abstract description 16
- 239000010802 sludge Substances 0.000 claims abstract description 55
- 239000010865 sewage Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 18
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 7
- 239000003337 fertilizer Substances 0.000 claims description 6
- 238000000855 fermentation Methods 0.000 claims description 5
- 230000004151 fermentation Effects 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 235000013922 glutamic acid Nutrition 0.000 description 4
- 239000004220 glutamic acid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002921 fermentation waste Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses the method and device that a kind of flyash replaces Lime And Sewage Sludge dehydration, is the technology that flyash caused by power plant is replaced to lime progress plate compression, to being directly used in sludge dewatering after production technology formula suitably adjustment.Compared with prior art, the present invention has the characteristics that energy-conservation, saves raw material, be environmentally friendly, is widely used among sewage disposal, has good application value.
Description
Technical field
The invention belongs to environmentally friendly sludge dewatering field, more particularly to a kind of flyash replace Lime And Sewage Sludge dehydration method and
Device.
Background technology
Glutamic acid fermentation waste water is that glutamic acid strives a kind of caused high concentrated organic wastewater, complicated component and difficulty during production
With processing, how to handle is the problem for perplexing glutamic acid manufacturing enterprise of China always, and waste water reclaiming is that glutamic acid enterprise can hold
Supervention exhibition, the optimum strategy for realizing recycling economy.The processing method for sewage is to carry out active sludge treatment at present, but this
Method can cause to produce substantial amounts of sludge again, and sludge dewatering is always the another big difficult problem in water process, its mesohigh
Plate compression is one of current most commonly used technique, but it is low dewatering efficiency to be present, adds other supplies, produces secondary dirt
The problem of dye.
To improve sludge dewatering efficiency, part industry is dehydrated using furnace drying method, but low temperature during material drying,
Part gas with foreign flavor is produced during medium temperature, high temperature dehydration, makes another problem in atmosphere pollution, causes dehydration to throw
The problem of money is high, cost is not held high any more.
The A of Chinese patent literature CN 102161562 (201110057421.4) are open a kind of surplus using flyash disposal
The process of remaining sludge, this method specifically include following steps：1. by the residue that pending moisture content is 80%-90%
The flyash of sludge and the 20%-50% for accounting for excess sludge quality is sent into mixing agitator；After being sufficiently mixed reaction 5-15min,
It is sent into frame dehydration machine to be dehydrated, obtains the sludge that moisture content is reduced to 35%-45%, sludge crushing is by sludge pelletizer
Particle diameter be 3-5mm coarse granule after, mud granule be sent into solar energy drying between temperature be more than 40 DEG C, humidity 15% with
Under, by 24-48h drying process, moisture percentage in sewage sludge is down to 8-15%.
The content of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, there is provided a kind of environmental protection, operating cost is low, does not produce two
The method of the sludge dewatering of secondary pollution.
The present invention is to be achieved through the following technical solutions：
A kind of method that flyash replaces Lime And Sewage Sludge dehydration, it is to replace lime to carry out plate compression in flyash caused by power plant
Technology, step is as follows：
1. it is standby that caused sludge in sewage disposal is added into flocculant；
2. flyash caused by power plant is dissolved in sludge condensation liquid；
3. by flyash with being dehydrated after sludge condensation liquid progress homogeneous into hardboard frame；
4. the water deviate from is carried to sewage disposal after collecting and handled again；
5. the sludge after dehydration makees fertilizer after collecting.
Further, step 1. added flocculant dosage be sludge dosage 0.5%-1.8%.
Further, step 2. added flyash dosage be sludge condensation liquid 10%-15%.
A kind of flyash replaces the device of Lime And Sewage Sludge dehydration, including sludge concentration tank, collection conduit and flocculant storage tank,
The air intake of fermentation tank is connected with reuse pipe outlet, the outlet of sludge concentration tank and the air intake phase of zymotic fluid collection conduit
Even, the outlet of collection conduit is connected with zymotic fluid reservoir inlet, and fermentation liquid storage tank passes through evaporation concentration device and condensation water storage tank
Entrance be connected.
The advantages of present invention obtains and good effect are：
1st, save：It is dehydrated using flyash mixing sludge, is not required to provide thermal source, energy consumption is relatively low；
2nd, it is environmentally friendly：Secondary pollution is not produced, the sludge after being dehydrated using flyash mixing sludge contains abundant carbon source can
It is directly used in production fertilizer；
3rd, technique is simple, is easily achieved.
Brief description of the drawings
Fig. 1 is the flowage structure figure that flyash of the present invention replaces Lime And Sewage Sludge dehydration device.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this,
Protection scope of the present invention can not be limited with following embodiments.Experimental method used in following embodiments is such as without special
Illustrate, be conventional method；Used material, reagent etc., unless otherwise specified, commercially obtain.Such as this
Flocculant used in invention is aluminium polychloride, is commercial products.
Embodiment 1
As shown in figure 1, a kind of method that flyash replaces Lime And Sewage Sludge dehydration, is to enter flyash caused by power plant instead of lime
The technology of row plate compression, step are as follows：
1. caused sludge in sewage disposal is added, flocculant is standby, and the dosage of added flocculant is the 0.5% of sludge dosage；
2. flyash caused by power plant is dissolved in sludge condensation liquid, the dosage of added flyash is the 10% of sludge condensation liquid；
3. by flyash with being dehydrated after sludge condensation liquid progress homogeneous into hardboard frame；
4. the water deviate from is carried to sewage disposal after collecting and handled again；
5. the sludge after dehydration makees fertilizer after collecting.
Sludge cake moisture content after processing is 35.8%.
Embodiment 2
As shown in figure 1, a kind of method that flyash replaces Lime And Sewage Sludge dehydration, is to enter flyash caused by power plant instead of lime
The technology of row plate compression, step are as follows：
1. caused sludge in sewage disposal is added, flocculant is standby, and the dosage of added flocculant is the 1.8% of sludge dosage；
2. flyash caused by power plant is dissolved in sludge condensation liquid, the dosage of added flyash is the 15% of sludge condensation liquid；
3. by flyash with being dehydrated after sludge condensation liquid progress homogeneous into hardboard frame；
4. the water deviate from is carried to sewage disposal after collecting and handled again；
5. the sludge after dehydration makees fertilizer after collecting.
Sludge cake moisture content after processing is 36.1%.
Embodiment 3
As shown in figure 1, a kind of method that flyash replaces Lime And Sewage Sludge dehydration, is to enter flyash caused by power plant instead of lime
The technology of row plate compression, step are as follows：
1. caused sludge in sewage disposal is added, flocculant is standby, and the dosage of added flocculant is the 1.0% of sludge dosage；
2. flyash caused by power plant is dissolved in sludge condensation liquid, the dosage of added flyash is the 13% of sludge condensation liquid；
3. by flyash with being dehydrated after sludge condensation liquid progress homogeneous into hardboard frame；
4. the water deviate from is carried to sewage disposal after collecting and handled again；
5. the sludge after dehydration makees fertilizer after collecting.
Sludge cake moisture content after processing is 34.7%.
A kind of flyash replaces the device of Lime And Sewage Sludge dehydration, including sludge concentration tank, collection conduit and flocculant storage tank,
The air intake of fermentation tank is connected with reuse pipe outlet, the outlet of sludge concentration tank and the air intake phase of zymotic fluid collection conduit
Even, the outlet of collection conduit is connected with zymotic fluid reservoir inlet, and the liquid storage tank that ferments is stored up by evaporation concentration device and condensed water
The entrance of tank is connected
Using the method and device of the present invention, avoid the great number processing cost of zymotic fluid and reduce the harm to caused by environment,
There is certain environment protection significance.Condensed water is reclaimed, instead of a water, reduces the consumption of a water.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto is any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in should all be covered
Within protection scope of the present invention.Therefore, protection scope of the present invention should using protection domain that claim is defined as
It is accurate.
Claims (4)
1. a kind of method that flyash replaces Lime And Sewage Sludge dehydration, it is to replace lime to carry out sheet frame pressure in flyash caused by power plant
Filter dehydration, it is characterised in that step is as follows：
1. it is standby that caused sludge in sewage disposal is added into flocculant；
2. flyash caused by power plant is dissolved in sludge condensation liquid；
3. by flyash with being dehydrated after sludge condensation liquid progress homogeneous into hardboard frame；
4. the water deviate from is carried to sewage disposal after collecting and handled again；
5. the sludge after dehydration makees fertilizer after collecting.
2. the method that a kind of flyash as claimed in claim 1 replaces Lime And Sewage Sludge dehydration, it is characterised in that step is 1. added
The dosage of flocculant is the 0.5%-1.8% of sludge dosage.
3. the method that a kind of flyash as claimed in claim 1 replaces Lime And Sewage Sludge dehydration, it is characterised in that step is 2. added
The dosage of flyash is the 10%-15% of sludge condensation liquid.
4. a kind of flyash replaces the device of Lime And Sewage Sludge dehydration, including sludge concentration tank, collection conduit and flocculant storage tank, hair
The air intake of fermentation tank is connected with reuse pipe outlet, and the outlet of sludge concentration tank is connected with the air intake of zymotic fluid collection conduit,
The outlet of collection conduit is connected with zymotic fluid reservoir inlet, and fermentation liquid storage tank is by evaporation concentration device with condensing entering for water storage tank
Mouth is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918559.6A CN107555762A (en) | 2017-09-30 | 2017-09-30 | A kind of flyash replaces the method and device of Lime And Sewage Sludge dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918559.6A CN107555762A (en) | 2017-09-30 | 2017-09-30 | A kind of flyash replaces the method and device of Lime And Sewage Sludge dehydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107555762A true CN107555762A (en) | 2018-01-09 |
Family
ID=60983723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710918559.6A Pending CN107555762A (en) | 2017-09-30 | 2017-09-30 | A kind of flyash replaces the method and device of Lime And Sewage Sludge dehydration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107555762A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574449A (en) * | 2018-12-19 | 2019-04-05 | 付井林 | A kind of dewatering of excess sludge |
| CN110104937A (en) * | 2018-01-30 | 2019-08-09 | 辽宁德智环保技术有限公司 | Using the method for nano polyaluminium chloride and flyash processing municipal sludge |
| CN110255857A (en) * | 2019-05-28 | 2019-09-20 | 路德环境科技股份有限公司 | Low alkali conditioner and dewatering for construction slurry deep dehydration |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442393A (en) * | 2002-03-05 | 2003-09-17 | 李波 | Method of producing composite organic fertilizer using city sludge |
| CN101565264A (en) * | 2009-06-05 | 2009-10-28 | 福建工程学院 | Method for treating sludge and method for recycling sludge building material and producing into fertilizer |
| CN101691272A (en) * | 2009-10-01 | 2010-04-07 | 厦门水务集团有限公司 | Sludge dewatering method |
| CN103601352A (en) * | 2013-11-27 | 2014-02-26 | 福建省源顺环保工程有限公司 | Environment-friendly sludge treatment system |
| CN104370593A (en) * | 2014-10-22 | 2015-02-25 | 浦华环保有限公司 | Method for preparing nutrient soil by performing mixed aerobic fermentation on sewage plant dewatered sludge and fly ash |
| CN104773933A (en) * | 2015-04-03 | 2015-07-15 | 李文新 | Treatment system for sewage plant sludge |
| CN105152513A (en) * | 2015-09-07 | 2015-12-16 | 天津泰达新水源科技开发有限公司 | Sludge dewatering system matched for sewage treatment |
-
2017
- 2017-09-30 CN CN201710918559.6A patent/CN107555762A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442393A (en) * | 2002-03-05 | 2003-09-17 | 李波 | Method of producing composite organic fertilizer using city sludge |
| CN101565264A (en) * | 2009-06-05 | 2009-10-28 | 福建工程学院 | Method for treating sludge and method for recycling sludge building material and producing into fertilizer |
| CN101691272A (en) * | 2009-10-01 | 2010-04-07 | 厦门水务集团有限公司 | Sludge dewatering method |
| CN103601352A (en) * | 2013-11-27 | 2014-02-26 | 福建省源顺环保工程有限公司 | Environment-friendly sludge treatment system |
| CN104370593A (en) * | 2014-10-22 | 2015-02-25 | 浦华环保有限公司 | Method for preparing nutrient soil by performing mixed aerobic fermentation on sewage plant dewatered sludge and fly ash |
| CN104773933A (en) * | 2015-04-03 | 2015-07-15 | 李文新 | Treatment system for sewage plant sludge |
| CN105152513A (en) * | 2015-09-07 | 2015-12-16 | 天津泰达新水源科技开发有限公司 | Sludge dewatering system matched for sewage treatment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104937A (en) * | 2018-01-30 | 2019-08-09 | 辽宁德智环保技术有限公司 | Using the method for nano polyaluminium chloride and flyash processing municipal sludge |
| CN109574449A (en) * | 2018-12-19 | 2019-04-05 | 付井林 | A kind of dewatering of excess sludge |
| CN110255857A (en) * | 2019-05-28 | 2019-09-20 | 路德环境科技股份有限公司 | Low alkali conditioner and dewatering for construction slurry deep dehydration |
| CN110255857B (en) * | 2019-05-28 | 2021-12-14 | 路德环境科技股份有限公司 | Low-alkali conditioner for deep dehydration of building slurry and dehydration method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180109 |