CN110183092A - A kind of efficient anaerobic digested sludge deep dehydration conditioner and its application method - Google Patents
A kind of efficient anaerobic digested sludge deep dehydration conditioner and its application method Download PDFInfo
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- CN110183092A CN110183092A CN201910283070.5A CN201910283070A CN110183092A CN 110183092 A CN110183092 A CN 110183092A CN 201910283070 A CN201910283070 A CN 201910283070A CN 110183092 A CN110183092 A CN 110183092A
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- sludge
- efficient anaerobic
- digested sludge
- molysite
- anaerobic digested
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of efficient anaerobic digested sludge deep dehydration conditioner and its application methods, the deep dehydration conditioner includes oxidant, molysite and high polymer coagulant, in terms of the solid content of sludge, the input amount of the oxidant is 0.1-1%, the input amount of the molysite is 1-10%, the input amount of the high polymer coagulant is 0.1-0.5%, mechanical dehydration again after improving using mentioned reagent sludge, moisture percentage in sewage sludge is finally set to be reduced to 60% hereinafter, to greatly increase the utilization efficiency of sludge.The invention also discloses the application methods using above-mentioned anaerobically digested sludge dehydrating and conditioning agent.
Description
Technical field
The invention belongs to technical field of sludge treatment, and in particular to a kind of efficient anaerobic digested sludge conditioner and its application
Method.
Background technique
Advanced anaerobically digested sludge moisture content is generally up to 88%-94%, and afforestation, the betterment of land and blended landfill
Etc. requirement of the disposal options to moisture percentage in sewage sludge be respectively < 40%, < 65% and < 60%, digested sludge also needed before disposition into
One step carries out deep dehydration processing.
The existence form of water can be divided into sludge: Interstitial Water, capillary water, surface adsorption water and internal junction Heshui.Gap
Water (accounting for 70%~75%) is trapped in mud granule gap, can mechanically be removed；Internal junction Heshui (account for 20%~
25%) it is present in the microbial cell of sludge, could be further removed only after breaking-wall cell；Capillary water, surface are inhaled
Attached water portion is small to be ignored.The key of deeply dehydrating sludge is to remove the combination water in sludge wadding body, removing combination
The key of water is microbial cell broken wall.
However, the characteristics such as the content of organics of sludge, particle diameter distribution, dewatering can be sent out after advanced Anaerobic Digestion
Changing, ferric trichloride and lime combined cooker are that chemical conditioning mode the most universal is applied in deeply dehydrating sludge engineering,
But such conditioning mode is not particularly suited for the deep dehydration of advanced anaerobically digested sludge, needs to be adjusted conditioning mode.
Summary of the invention
To overcome the shortcomings of art methods, the invention proposes a kind of efficient anaerobic digested sludge conditioner and its answer
Use method.
To achieve the above object, the invention adopts the following technical scheme:
A kind of efficient anaerobic digested sludge deep dehydration conditioner, it is characterised in that the deep dehydration conditioner includes oxygen
Agent, molysite and high polymer coagulant, in terms of the solid content of sludge, the input amount of the oxidant is 0.1-1%, the molysite
Input amount be 1-10%, the input amount of the high polymer coagulant is 0.1-0.5%.
Wherein, the oxidant is selected from Fenton, ClO2、Ca(ClO)2、NaClO、K2FeO4Or KMnO4。
Wherein, the molysite is selected from FeCl2、FeCl3、FeSO4Or Fe2(SO4)3。
Wherein, the high polymer coagulant is selected from PAC, PFS or PAM.
Application of the above-mentioned efficient anaerobic digested sludge deep dehydration conditioner in efficient anaerobic digested sludge dehydration, specifically
Step are as follows:
(1) oxidant is added in anaerobically digested sludge first, in terms of the solid content of sludge, the investment of the oxidant
Amount is 0.1-1%, then carries out being sufficiently mixed reaction；
(2) molysite is added into step (1) treated sludge, in terms of the solid content of sludge, the input amount of the molysite
For 1-10%, stir evenly；
(3) high polymer coagulant is added into step (2) treated sludge, in terms of the solid content of sludge, the high score
The input amount of sub- flocculant is 0.1-0.5%, is stirred evenly, reaction a period of time, the sludge after being improved；
(4) mechanical dehydration is carried out to step (3) treated sludge using filter press, by water and dewatered sludge point
It opens.
Wherein, the oxidant is selected from Fenton, ClO2、Ca(ClO)2、NaClO、K2FeO4Or KMnO4；
Wherein, molysite is selected from FeCl2、FeCl3、FeSO4Or Fe2(SO4)3；
Wherein, the high polymer coagulant is selected from PAC, PFS or PAM；
Wherein, the filter press is plate and frame filter press, and the operating pressure of the plate and frame filter press is 0.8~2.5Mpa.
The principle of the invention lies in: these oxidizing species can destroy the outer layer region of sludge first, and consume and release
The organic matter of releasing, to be conducive to further destroy internal sludge, a large amount of protein and polysaccharide can be released to freedom
In water.Eventually by effectively being inactivated to the microbial cell in sludge and broken wall, a large amount of extracellular polymeric combination water
It is released with Interstitial Water.Simultaneously as the addition of molysite, aquation can occur for a large amount of iron ion, can be used as coagulant,
It is dirty that the effects of playing the role of traditional molysite, finally add high polymer coagulant, being caught by electrostatic adherency, net changes bulky grain
The stability of mud, reduces sludge specific resistance, makes it easier to be dehydrated.
The present invention has the following advantages and beneficial effects:
(1) sludge conditioner Easy dosing provided by the invention, it is low in cost.
(2) present invention is by simply addition oxidant, molysite and high polymer coagulant, mechanical dehydration after stirring,
Easy to operate, equipment requirement is low, time-consuming short.
(3) present invention can not only aoxidize organic matter and the microorganism removed in sludge, moreover it is possible to go back the huge sum of money in raw sewage
Belong to ion, the utilization efficiency of sludge can be greatly improved.
Specific embodiment
In order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood, now to skill of the invention
Art scheme carries out described further below, but should not be understood as that limiting the scope of the invention.
Embodiment 1
Fenton reagent is added in the anaerobically digested sludge for being 94.2% to moisture content, additive amount is sludge oven dry weight
0.1%, then add FeCl3Solution, additive amount are the 10% of sludge oven dry weight, stir 10min, add PAC solution, add
Amount is the 0.1% of sludge oven dry weight.Sludge after processing is squeezed into autoclave diaphragm filter press and is dehydrated, after dehydration, sludge
Moisture content reaches 53.2%.
Embodiment 2
Ca (ClO) is added in the anaerobically digested sludge for being 94.7% to moisture content2Reagent, additive amount are sludge oven dry weight
0.5%, then add FeSO4Solution, additive amount are the 5% of sludge oven dry weight, stir 10min, add PFS solution, add
Dosage is the 0.3% of sludge oven dry weight.Sludge after processing is squeezed into autoclave diaphragm filter press and is dehydrated, dirty after dehydration
Mud moisture content reaches 55.3%.
Embodiment 3
KMnO is added in the anaerobically digested sludge for being 93.8% to moisture content4Reagent, additive amount are sludge oven dry weight
1%, then add FeCl2Solution, additive amount are the 1% of sludge oven dry weight, stir 10min, add PAM solution, additive amount
It is the 0.5% of sludge oven dry weight.Sludge after processing is squeezed into autoclave diaphragm filter press and is dehydrated, and after dehydration, sludge contains
Water rate reaches 52.8%.
Embodiment 4
K is added in the anaerobically digested sludge for being 94.5% to moisture content2FeO4Reagent, additive amount are sludge oven dry weight
0.1%, then add FeCl3Solution, additive amount are the 5% of sludge oven dry weight, stir 10min, add PAM solution, add
Amount is the 0.5% of sludge oven dry weight.Sludge after processing is squeezed into autoclave diaphragm filter press and is dehydrated, after dehydration, sludge
Moisture content reaches 53.5%.
Meanwhile inventor uses traditional sludge treatment agent (mass ratio of lime and ferric trichloride for 1:1), according to above-mentioned
Method handles the anaerobically digested sludge of moisture content 94% or so, and the additional amount of traditional sludge treatment agent is sludge over dry
The 25% of weight.Performance comparison the results are shown in Table 1.
1 highly effective sludge conditioner of table and traditional medicament (lime+ferric trichloride) performance comparison
| Project | Lime+ferric trichloride | Embodiment average value |
| Inputiing mud volume | 28.3m3 | 30.5m3 |
| Whether haftplatte | It is no | It is no |
| Moisture content of the cake | 60% | 53.7% |
| Cake thickness | 2-3cm | 2-4cm |
| Mud cake increment | 25% | Without increment |
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously can easily to these embodiments, various modification can be adapted, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of efficient anaerobic digested sludge deep dehydration conditioner, it is characterised in that the deep dehydration conditioner includes oxidation
Agent, molysite and high polymer coagulant, in terms of the solid content of sludge, the input amount of the oxidant is 0.1-1%, the molysite
Input amount is 1-10%, and the input amount of the high polymer coagulant is 0.1-0.5%.
2. efficient anaerobic digested sludge deep dehydration conditioner according to claim 1, it is characterised in that the oxidant
Selected from Fenton, ClO2、Ca(ClO)2、NaClO、K2FeO4Or KMnO4。
3. -2 described in any item efficient anaerobic digested sludge deep dehydration conditioners according to claim 1, it is characterised in that institute
It states molysite and is selected from FeCl2、FeCl3、FeSO4Or Fe2(SO4)3。
4. efficient anaerobic digested sludge deep dehydration conditioner according to claim 1-3, it is characterised in that institute
It states high polymer coagulant and is selected from PAC, PFS or PAM.
5. a kind of efficient anaerobic digested sludge deep dehydration conditioner according to any one of claims 1-4 disappears in efficient anaerobic
Change the application in sludge dewatering.
6. the application in efficient anaerobic digested sludge according to claim 5 dehydration, wherein concrete application step are as follows:
(1) oxidant is added in anaerobically digested sludge first, in terms of the solid content of sludge, the input amount of the oxidant is
Then 0.1-1% carries out being sufficiently mixed reaction；
(2) molysite is added into step (1) treated sludge, in terms of the solid content of sludge, the input amount of the molysite is 1-
10%, it stirs evenly；
(3) high polymer coagulant is added into step (2) treated sludge, in terms of the solid content of sludge, the macromolecule wadding
The input amount of solidifying agent is 0.1-0.5%, is stirred evenly, reaction a period of time, the sludge after being improved；
(4) mechanical dehydration is carried out to step (3) treated sludge using filter press, water and dewatered sludge is separated.
7. the application in efficient anaerobic digested sludge dehydration according to claim 6, it is characterised in that the oxidant choosing
From Fenton, ClO2、Ca(ClO)2、NaClO、K2FeO4Or KMnO4。
8. according to the application in the described in any item efficient anaerobic digested sludge dehydrations of claim 6-7, it is characterised in that described
Molysite is selected from FeCl2、FeCl3、FeSO4Or Fe2(SO4)3。
9. according to the application in the described in any item efficient anaerobic digested sludge dehydrations of claim 6-8, it is characterised in that described
High polymer coagulant is selected from PAC, PFS or PAM.
10. according to the application in the described in any item efficient anaerobic digested sludge dehydrations of claim 6-9, it is characterised in that described
Filter press is plate and frame filter press, and the operating pressure of the plate and frame filter press is 0.8~2.5Mpa.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860546A (en) * | 2019-11-28 | 2020-03-06 | 天津凯英科技发展股份有限公司 | Sludge-based covering material for refuse landfill and preparation method thereof |
| CN111995035A (en) * | 2020-08-11 | 2020-11-27 | 中国海洋大学 | Mechanochemical dry preparation method and application of all-solid-phase Fenton reagent |
| CN112047611A (en) * | 2020-08-05 | 2020-12-08 | 同济大学 | Sludge dewatering conditioning method based on protein denaturant |
| CN113683279A (en) * | 2021-09-09 | 2021-11-23 | 北京尚水清源水处理技术有限公司 | Dehydration method of thermal hydrolysis anaerobic digestion sludge |
| CN114538727A (en) * | 2022-03-30 | 2022-05-27 | 卓越医药科技(大连)有限公司 | Deodorizing wall-breaking agent and application thereof |
| CN114733486A (en) * | 2022-05-10 | 2022-07-12 | 重庆市排水有限公司 | Preparation method of phosphorus-removing modified biochar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583949A (en) * | 2012-01-16 | 2012-07-18 | 宁波工程学院 | Application of ferrate in municipal sludge conditioning |
| CN102603152A (en) * | 2012-03-08 | 2012-07-25 | 佛山市环保技术与装备研发专业中心 | Sludge deep dehydration conditioning agent and application thereof |
| CN102992566A (en) * | 2012-12-21 | 2013-03-27 | 湖南清和污泥资源利用有限公司 | Method for disposing sludge |
| CN104355524A (en) * | 2014-10-14 | 2015-02-18 | 谭忠冠 | Deep dewatering method for sludge |
| CN109592882A (en) * | 2019-01-18 | 2019-04-09 | 河海大学 | A kind of sewage plant sludge integrated treatment and utilize method |
-
2019
- 2019-04-10 CN CN201910283070.5A patent/CN110183092A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583949A (en) * | 2012-01-16 | 2012-07-18 | 宁波工程学院 | Application of ferrate in municipal sludge conditioning |
| CN102603152A (en) * | 2012-03-08 | 2012-07-25 | 佛山市环保技术与装备研发专业中心 | Sludge deep dehydration conditioning agent and application thereof |
| CN102992566A (en) * | 2012-12-21 | 2013-03-27 | 湖南清和污泥资源利用有限公司 | Method for disposing sludge |
| CN104355524A (en) * | 2014-10-14 | 2015-02-18 | 谭忠冠 | Deep dewatering method for sludge |
| CN109592882A (en) * | 2019-01-18 | 2019-04-09 | 河海大学 | A kind of sewage plant sludge integrated treatment and utilize method |
Non-Patent Citations (1)
| Title |
|---|
| 高廷耀: "《水污染控制工程下册》", 31 July 2000, 高等教育出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860546A (en) * | 2019-11-28 | 2020-03-06 | 天津凯英科技发展股份有限公司 | Sludge-based covering material for refuse landfill and preparation method thereof |
| CN112047611A (en) * | 2020-08-05 | 2020-12-08 | 同济大学 | Sludge dewatering conditioning method based on protein denaturant |
| CN112047611B (en) * | 2020-08-05 | 2021-12-07 | 同济大学 | Sludge dewatering conditioning method based on protein denaturant |
| CN111995035A (en) * | 2020-08-11 | 2020-11-27 | 中国海洋大学 | Mechanochemical dry preparation method and application of all-solid-phase Fenton reagent |
| CN113683279A (en) * | 2021-09-09 | 2021-11-23 | 北京尚水清源水处理技术有限公司 | Dehydration method of thermal hydrolysis anaerobic digestion sludge |
| CN114538727A (en) * | 2022-03-30 | 2022-05-27 | 卓越医药科技(大连)有限公司 | Deodorizing wall-breaking agent and application thereof |
| CN114733486A (en) * | 2022-05-10 | 2022-07-12 | 重庆市排水有限公司 | Preparation method of phosphorus-removing modified biochar |
| CN114733486B (en) * | 2022-05-10 | 2023-11-21 | 重庆市排水有限公司 | Preparation method of dephosphorization modified biochar |
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Application publication date: 20190830 |