CN107902756A - A kind of method for accelerating citric acid wastewater anaerobic granulation - Google Patents
A kind of method for accelerating citric acid wastewater anaerobic granulation Download PDFInfo
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- CN107902756A CN107902756A CN201711166603.9A CN201711166603A CN107902756A CN 107902756 A CN107902756 A CN 107902756A CN 201711166603 A CN201711166603 A CN 201711166603A CN 107902756 A CN107902756 A CN 107902756A
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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
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
Abstract
The present invention relates to biochemical wastewater treatment technical field, and in particular to a kind of method for accelerating citric acid wastewater anaerobic granulation.The metallo-ionic compositions of anaerobic sludge domestication are provided, and a kind of method for accelerating citric acid wastewater anaerobic granulation is provided, by adding the factor such as metal ion, control reflux ratio, flow, anaerobic sludge can be shortened and tame the time to form granule sludge.
Description
Technical field
The present invention relates to biochemical wastewater treatment technical field, and in particular to one kind accelerates citric acid wastewater anaerobic sludge particle
The method of change.
Background technology
In upflow type anaerobic reactor, granule sludge can ensure the anaerobic sludge of high concentration, this firstly because
Grain sludge has fabulous settling property.Floc sludge settling property is poor, cotton-shaped when the high or upper speed of gas production is bigger
Sludge easily washes out reactor, and the shearing force of aerogenesis and current is also easy to make floc sludge further disperse, and aggravates floc sludge
Wash-off.Granule sludge has fabulous settling property, it can be retained in anaerobism under very high gas production and high upper speed
In reactor, therefore granular sludge can make anaerobic reactor allow the organic loading and hydraulic load for having higher.
Upflow type anaerobic reactor makes reactor reach Design cooling load and organic with the non-particulate sludge seeding without training
The process of thing removal efficiency, usually with the completion of granulating, therefore the also referred to as granulating of sludge.Due to the micro- life of anaerobism
Thing particularly methanogen increment is very slow, and the startup of anaerobic reactor needs longer time, this is considered as that high speed anaerobism is anti-
Answer a shortcoming of device.
The content of the invention
The object of the present invention is in view of the deficiencies of the prior art, there is provided the metallo-ionic compositions of anaerobic sludge domestication, and
A kind of method for accelerating citric acid wastewater anaerobic granulation is provided, by adding metal ion, control reflux ratio, flow etc.
Factor, can shorten anaerobic sludge and tame the time to form granule sludge.
A kind of metallo-ionic compositions A of anaerobic sludge domestication, including FeCl2·4H25-10 parts of O, CoCl2·6H2O
3-6 parts, NiCl2·6H21-4 parts of O, MgCl2·6H25-12 parts of O, CaCl2·6H215-25 parts of O, is parts by weight.Also may be used
Contain Fe using other2+、Co2+、Ni2+、Mg2+、Ca2+Compound substitute.
Preferably, the metallo-ionic compositions A, further includes water, is formulated as the aqueous solution of 29-29mg/L.
A kind of metallo-ionic compositions B of anaerobic sludge domestication, including FeCl24H28-12 parts of O, CoCl2·6H2O
1-6 parts, NiCl2·6H21-4 parts of O, NaMoO4·2H20.5-1.5 parts of O, is parts by weight.Also other can be used to contain Fe2+、
Co2+、Ni2+、Mo2+Compound substitute.
Preferably, the metallo-ionic compositions B, further includes water, is formulated as the aqueous solution of 10.5-23.5mg/L.
The present invention provides a kind of method for accelerating citric acid wastewater anaerobic granulation, and specific method is：
Domestication process is divided into intermittent water inlet domestication and continuous influent is tamed two stages, two domestication stage water inlets
COD value, reflux ratio, the metal ion of addition and dosage etc. have difference.
A kind of method for accelerating citric acid wastewater anaerobic granulation, comprises the following steps：
The intermittent water inlet training of advanced row, laggard Line Continuity water inlet training.
1) in the intermittent water inlet training stage, Fe is disposably added2+、Co2+、Ni2+、Mg2+、Ca2+, dosage such as following table institute
Show：
This stage must control reflux ratio 1：(3-5), COD value 3000-4500mg/L, temperature are maintained at 35 DEG C -40 DEG C, and pH exists
6.5-7.8, flow 15t/h-25t/h.Partial particulate sludge is formed and particle diameter is in 0.3-1.2mm, carries out continuous influent
Domestication.
2) in the continuous influent training stage, Fe is disposably added2+、Co2+、Ni2+、Mo2+, dosage is as shown in the table：
| Metal salt species | FeCl2·4H2O | CoCl2·6H2O | NiCl2·6H2O | NaMoO4·2H2O |
| Dosage/mg/L | 8mg/L-12mg/L | 1mg/L-6mg/L | 1mg/L-4mg/L | 0.5mg/L-1.5mg/L |
This stage must control reflux ratio 1：(3-5), temperature are maintained at 35 DEG C -40 DEG C, and pH is in 6.5-7.8, and flow is by 5t/h-
15t/h progressively increases to 20t/h-30t/h.Granular sludge formation and particle diameter is in 1.5-2.5mm, granular sludge has been tamed
Into.
Embodiment
In order to further appreciate that the present invention, the preferred embodiment of the invention is described with reference to embodiment.
Embodiment 1：
A) addition metallic element is tamed
Sludge acclimatization intermittent water inflow stage, the COD concentration 3400mg/L of water inlet, reflux ratio 1：3, temperature is 35 DEG C, and pH is
7, flow 15t/h, water inlet dwell period are 24h, disposably add Fe2+、Co2+、Ni2+、Mg2+、Ca2+, dosage such as following table
It is shown：
In the sludge acclimatization continuum micromeehanics stage, increase 5600mg/L, reflux ratio 1 by COD concentration in water inlet：3, temperature is maintained at
35 DEG C, pH 7.5, flow progressively increases to 21t/h by 10t/h.Water inlet adds Fe every time2+、Co2+、Ni2+、Mo2+, dosage is such as
Shown in following table：
| Metal salt species | FeCl2·4H2O | CoCl2·6H2O | NiCl2·6H2O | NaMoO4·2H2O |
| Dosage/mg/L | 8.5mg/L | 3mg/L | 1.5mg/L | 0.5mg/L |
During system operation 21d, partial sludge granulating, particle diameter is between 0.4-1.0mm；Granular sludge is completed during 44d,
Particle diameter is between 1.5-2.5mm.
B) metallic element is not added to be tamed
Influent COD, reflux ratio, temperature pH, flow, hydraulic detention time and method a all sames during domestication.System is transported
During row 28d, partial sludge granulating, particle diameter is between 0.3-1.0mm；Granular sludge is completed during 61d, and particle diameter is in 1.2-
Between 2.3mm.
Both compare, and the time that method a completes granular sludge be 44d, and the time of method b completion granular sludges is
61d.The method a used times greatly shorten.
Embodiment 2：
A) addition metallic element is tamed
Sludge acclimatization intermittent water inflow stage, the COD concentration 4200mg/L of water inlet, reflux ratio 1：4, temperature is 37 DEG C, and pH is
6.5, flow 15t/h, water inlet dwell period are 24h, disposably add Fe2+、Co2+、Ni2+、Mg2+、Ca2+, dosage is as follows
Shown in table：
| Metal salt species | FeCl2·4H2O | CoCl2·6H2O | NiCl2·6H2O | MgCl2·6H2O | CaCl2·6H2O |
| Dosage/mg/L | 9mg/L | 6.5mg/L | 3mg/L | 8.5mg/L | 18mg/L |
In the sludge acclimatization continuum micromeehanics stage, increase 5600mg/L, reflux ratio 1 by COD concentration in water inlet：4, temperature is maintained at
37 DEG C, pH 7.5, flow progressively increases to 24t/h by 13t/h.Water inlet adds Fe every time2+、Co2+、Ni2+、Mo2+, dosage is such as
Shown in following table：
| Metal salt species | FeCl2·4H2O | CoCl2·6H2O | NiCl2·6H2O | NaMoO4·2H2O |
| Dosage/mg/L | 10.5mg/L | 4.5mg/L | 3mg/L | 1mg/L |
During system operation 25d, partial sludge granulating, particle diameter is between 0.5-1.1mm；Granular sludge is completed during 53d,
Particle diameter is between 1.5-2.5mm.
B) metallic element is not added to be tamed
Influent COD, reflux ratio, temperature pH, flow, hydraulic detention time and method a all sames during domestication.System is transported
During row 29d, partial sludge granulating, particle diameter is between 0.4-1.0mm；Granular sludge is completed during 63d, and particle diameter is in 1.3-
Between 2.5mm.
Both compare, and the time that method a completes granular sludge be 53d, and the time of method b completion granular sludges is
63d.The method a used times greatly shorten.
Embodiment 3：
A) addition metallic element is tamed
Sludge acclimatization intermittent water inflow stage, the COD concentration 4500mg/L of water inlet, reflux ratio 1：5, temperature is 39 DEG C, and pH is
7.8, flow 15t/h, water inlet dwell period are 24h, disposably add Fe2+、Co2+、Ni2+、Mg2+、Ca2+, dosage is as follows
Shown in table：
| Metal salt species | FeCl2·4H2O | CoCl2·6H2O | NiCl2·6H2O | MgCl2·6H2O | CaCl2·6H2O |
| Dosage/mg/L | 9mg/L | 7.5mg/L | 3.5mg/L | 11.5mg/L | 24mg/L |
In the sludge acclimatization continuum micromeehanics stage, increase 6000mg/L, reflux ratio 1 by COD concentration in water inlet：5, temperature is maintained at
39 DEG C, pH 7.5, flow progressively increases to 27t/h by 15t/h.Water inlet adds Fe every time2+、Co2+、Ni2+、Mo2+, dosage is such as
Shown in following table：
| Metal salt species | FeCl2·4H2O | CoCl2·6H2O | NiCl2·6H2O | NaMoO4·2H2O |
| Dosage/mg/L | 11mg/L | 5mg/L | 3mg/L | 1.5mg/L |
During system operation 27d, partial sludge granulating, particle diameter is between 0.5-1.2mm；Granular sludge is completed during 56d,
Particle diameter is between 1.5-2.5mm.
B) metallic element is not added to be tamed
Influent COD, reflux ratio, temperature pH, flow, hydraulic detention time and method a all sames during domestication.System is transported
During row 31d, partial sludge granulating, particle diameter is between 0.4-1.5mm；Granular sludge is completed during 66d, and particle diameter is in 1.4-
Between 2.5mm.
Both compare, and the time that method a completes granular sludge be 56d, and the time of method b completion granular sludges is
66d.The method a used times greatly shorten.
Claims (9)
1. a kind of metallo-ionic compositions A of anaerobic sludge domestication, including FeCl2·4H25-10 parts of O, CoCl2·6H2O 3-8
Part, NiCl2·6H21-4 parts of O, MgCl2·6H25-12 parts of O, CaCl2·6H215-25 parts of O, is parts by weight.Also can be used
Other contain Fe2+、Co2+、Ni2+、Mg2+、Ca2+Compound substitute.
2. metallo-ionic compositions A as claimed in claim 1, it is characterised in that further include water, be formulated as 29-57mg/L's
Aqueous solution.
3. the application method of the metallo-ionic compositions A of anaerobic sludge domestication as claimed in claim 1 or 2, inventory 29-
57mg/L。
4. a kind of metallo-ionic compositions B of anaerobic sludge domestication, including FeCl24H28-12 parts of O, CoCl2·6H2O 1-6
Part, NiCl2·6H21-4 parts of O, NaMoO4·2H20.5-1.5 parts of O, is parts by weight.Also other can be used to contain Fe2+、Co2+、
Ni2+、Mo2+Compound substitute.
5. metallo-ionic compositions B as claimed in claim 4, it is characterised in that further include water, be formulated as 10.5-23.5mg/
The aqueous solution of L.
6. the application method of the metallo-ionic compositions B of anaerobic sludge domestication, inventory are as described in claim 4 or 5
10.5-23.5mg/L。
A kind of 7. method for accelerating citric acid wastewater anaerobic granulation, it is characterised in that
Domestication process is divided into intermittent water inlet domestication and continuous influent is tamed two stages, and the intermittence water inlet domestication stage adds
Metallo-ionic compositions A；The continuous influent domestication stage adds metallo-ionic compositions B.
8. accelerate the method for citric acid wastewater anaerobic granulation as claimed in claim 7, it is characterised in that
The inventory of metallo-ionic compositions A is 29-57mg/L；The inventory of metallo-ionic compositions B is 10.5-23.5mg/
L。
A kind of 9. method for accelerating citric acid wastewater anaerobic granulation, it is characterised in that
Domestication process is divided into intermittent water inlet domestication and continuous influent is tamed two stages, the intermittent water inlet domestication of advanced row,
Laggard Line Continuity water inlet domestication；
1) in the intermittent water inlet domestication stage, Fe is disposably added2+、Co2+、Ni2+、Mg2+、Ca2+, dosage is as follows：
FeCl2·4H2O 5mg/L-10mg/L, CoCl2·6H2O 3mg/L-8mg/L, NiCl2·6H2O 1mg/L-4mg/L,
MgCl2·6H2O 5mg/L-12mg/L, CaCl2·6H2O 15mg/L-25mg/L；
This stage must control reflux ratio 1：(3-5), COD value 3000-4500mg/L, temperature are maintained at 35 DEG C -40 DEG C, and pH is in 6.5-
7.8, flow 15t/h-25t/h.Partial particulate sludge is formed and particle diameter is in 0.3-1.2mm, is tamed into continuous influent
Stage；
2) in the continuous influent domestication stage, Fe is disposably added2+、Co2+、Ni2+、Mo2+, dosage is as follows：FeCl2·4H2O
8mg/L-12mg/L, CoCl2·6H2O 1mg/L-6mg/L, NiCl2·6H2O 1mg/L-4mg/L, NaMoO4·2H2O
0.5mg/L-1.5mg/L；
This stage must control reflux ratio 1：(3-5), temperature are maintained at 35 DEG C -40 DEG C, and pH is in 6.5-7.8, and flow is by 5t/h-15t/
H progressively increases to 20t/h-30t/h.Granular sludge formation and particle diameter is in 1.5-2.5mm, granular sludge domestication are completed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109761346A (en) * | 2019-03-11 | 2019-05-17 | 福建省环境科学研究院（福建省排污权储备和管理技术中心） | The method that biological ceramic particle realizes short distance nitration granular sludge is added under a kind of low organic loading |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761346A (en) * | 2019-03-11 | 2019-05-17 | 福建省环境科学研究院（福建省排污权储备和管理技术中心） | The method that biological ceramic particle realizes short distance nitration granular sludge is added under a kind of low organic loading |
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