CN109553219A - A kind of method for sludge treatment for sewage treatment plant - Google Patents
A kind of method for sludge treatment for sewage treatment plant Download PDFInfo
- Publication number
- CN109553219A CN109553219A CN201811634716.1A CN201811634716A CN109553219A CN 109553219 A CN109553219 A CN 109553219A CN 201811634716 A CN201811634716 A CN 201811634716A CN 109553219 A CN109553219 A CN 109553219A
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- China
- Prior art keywords
- sludge
- waste water
- sewage treatment
- treatment plant
- reactor
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of method for sludge treatment for sewage treatment plant, the sludge of sewage treatment plant is first sent by grid grid, bulky grain suspended matter contained in sludge is removed with this, then, sludge is sterilized, colloid and moisture evaporation is destroyed and dries, so that the moisture content in sludge reduces, settled using vertical sedimentation basin, increases the rate of deposition of sludge；Water content in the sludge is reduced to 20 ~ 25%.One aspect of the present invention is contacted by the impurity in sludge with high-temperature flue gas, Sludge Surface moisture evaporates rapidly, be conducive to the drying and dehydrating of sludge, meanwhile not will cause air pollution, on the other hand the vertical sedimentation basin that calcium carbonate (CaSO4) progress is added in the waste water of the sludge of sewage treatment plant is settled, it can accelerate the precipitating of mud waste water, work difficulty is reduced, reduces artificial workload and work difficulty, and do not influence biochemical process.
Description
Technical field
The present invention relates to a kind of method for sludge treatment for sewage treatment plant, belongs to sludge treatment field.
Background technique
Treatment of Sludge be sludge is concentrated, is quenched, dehydration, is stablized, minimizings, stabilisation, the nothing such as desiccation or burning
Evilization process.And the processing type of Treatment of Sludge includes sludge digestion, aerobic sigestion, anaerobic digestion, mesophilic digestion, height
Warm digestion, sludge condensation, sludge elutriation, sludge dewatering, sludge vacuum filtration, sludge press filtration, sludge drying, sludge incineration.It is existing
Some is used for the method for sludge treatment of sewage treatment plant, so that intermediate product-sludge of sewage treatment does not obtain appropriate place
Reason, the problem low to the reuse ratio of sludge.For this status, there is an urgent need to develop a kind of sludge for sewage treatment plant
Processing method, to meet the needs of actual use.
Summary of the invention
Appropriate processing is not obtained in order to solve sludge on existing sorting technique, low to the reuse ratio of sludge asks
Topic, the present invention provide a kind of method for sludge treatment for sewage treatment plant.
In order to realize effect above-mentioned, a kind of method for sludge treatment for sewage treatment plant is proposed comprising with
Lower step:
A kind of method for sludge treatment for sewage treatment plant, comprising the following steps:
The first step, material prepare, and get out hydrochloric acid (HCL), calcium carbonate (CaSO4), alkaline powder that enough concentration is 30% first
The sludge of sewage treatment plant is imported grid grid by drinking-water pipe, removes bulky grain contained in sludge with this by end and coal ash
Suspended matter, then bulky grain suspended matter is placed in container one, remaining waste water imports in preprepared reactor.
Waste water in preprepared reactor is first poured into the hydrochloric acid that concentration is 30% by second step, acidification reaction
(HCL) it is acidified, is stirred with by blender, after stirring 1 ~ 2 hour, it is 0.3 ~ 4% that mass percent, which is then added,
Alkaline powder mixes alkaline powder with waste water while stirring, then stands 20 minutes, and upper layer waste water pours into reactor again after standing
It is interior, and the sediment of bottom is placed in again in container one.
Third step, drying precipitate are handled, and the sediment in container one is contacted using 110 °C ~ 350 °C of high-temperature flue gas,
Sludge Surface moisture evaporates rapidly, is conducive to the drying and dehydrating of sludge, is sterilized with this to sludge, destroys colloid and moisture steaming
It sends out and dries, the moisture content in sludge is reduced, increases the rate of drying of sediment, the sludge after drying process can be used for
Plantation.
4th step, vertical-flow sedimentation, the waste water being placed in reactor are added the calcium carbonate (CaSO4) of 2 ~ 5g, stir 20 points
Zhong Hou carries out vertical sedimentation basin sedimentation, can accelerate the precipitating of mud waste water, not influence biochemical process, then add matter
The coal ash of percentage 0.5 ~ 3% is measured, adsorption treatment is carried out with this coal ash, reduces the impurity of the waste water in reactor.
Further, in the first step operation, alkaline powder is the iron hydroxide that concentration is 0.02%.
Further, in the 4th step operation, reactor is tower reactor.
It is simple that present system constitutes structure, flexible and convenient to use, versatility is good, on the one hand by impurity in sludge with
High-temperature flue gas contact, Sludge Surface moisture evaporate rapidly, are conducive to the drying and dehydrating of sludge, meanwhile, it not will cause air pollution,
On the other hand the vertical sedimentation basin that calcium carbonate (CaSO4) progress is added in the waste water of the sludge of sewage treatment plant is settled, it can
To accelerate the precipitating of mud waste water, the reuse ratio of the available appropriate processing of sludge, sludge is high, reduces work difficulty,
Reduce artificial workload and work difficulty, and does not influence biochemical process.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments；
Fig. 1 is the method for the present invention flow chart.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
A kind of method for sludge treatment for sewage treatment plant as described in Figure 1, comprising the following steps:
The first step, material prepare, and get out hydrochloric acid (HCL), calcium carbonate (CaSO4), alkaline powder that enough concentration is 30% first
The sludge of sewage treatment plant is imported grid grid by drinking-water pipe, removes bulky grain contained in sludge with this by end and coal ash
Suspended matter, then bulky grain suspended matter is placed in container one, remaining waste water imports in preprepared reactor.
Waste water in preprepared reactor is first poured into the hydrochloric acid that concentration is 30% by second step, acidification reaction
(HCL) it is acidified, is stirred with by blender, after stirring 1 ~ 2 hour, it is 0.3 ~ 4% that mass percent, which is then added,
Alkaline powder mixes alkaline powder with waste water while stirring, then stands 20 minutes, and upper layer waste water pours into reactor again after standing
It is interior, and the sediment of bottom is placed in again in container one.
Third step, drying precipitate are handled, and the sediment in container one is contacted using 110 °C ~ 350 °C of high-temperature flue gas,
Sludge Surface moisture evaporates rapidly, is conducive to the drying and dehydrating of sludge, is sterilized with this to sludge, destroys colloid and moisture steaming
It sends out and dries, the moisture content in sludge is reduced, increases the rate of drying of sediment, the sludge after drying process can be used for
Plantation.
4th step, vertical-flow sedimentation, the waste water being placed in reactor are added the calcium carbonate (CaSO4) of 2 ~ 5g, stir 20 points
Zhong Hou carries out vertical sedimentation basin sedimentation, can accelerate the precipitating of mud waste water, not influence biochemical process, then add matter
The coal ash of percentage 0.5 ~ 3% is measured, adsorption treatment is carried out with this coal ash, reduces the impurity of the waste water in reactor.
In the present embodiment, in the first step operation, alkaline powder is the iron hydroxide that concentration is 0.02%.
Further, in the 4th step operation, reactor is tower reactor.
It is simple that present system constitutes structure, flexible and convenient to use, versatility is good, on the one hand by impurity in sludge with
High-temperature flue gas contact, Sludge Surface moisture evaporate rapidly, are conducive to the drying and dehydrating of sludge, meanwhile, it not will cause air pollution,
On the other hand the vertical sedimentation basin that calcium carbonate (CaSO4) progress is added in the waste water of the sludge of sewage treatment plant is settled, it can
To accelerate the precipitating of mud waste water, the reuse ratio of the available appropriate processing of sludge, sludge is high, reduces work difficulty,
Reduce artificial workload and work difficulty, does not influence biochemical process.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of method for sludge treatment for sewage treatment plant, it is characterised in that: the sludge for sewage treatment plant
Processing method the following steps are included:
The first step, material prepare, and get out hydrochloric acid (HCL), calcium carbonate (CaSO4), alkaline powder that enough concentration is 30% first
The sludge of sewage treatment plant is imported grid grid by drinking-water pipe, removes bulky grain contained in sludge with this by end and coal ash
Suspended matter, then bulky grain suspended matter is placed in container one, remaining waste water imports in preprepared reactor；
Waste water in preprepared reactor is first poured into the hydrochloric acid (HCL) that concentration is 30% and come by second step, acidification reaction
It is acidified, is stirred with by blender, after stirring 1 ~ 2 hour, the alkaline powder that mass percent is 0.3 ~ 4% is then added
End mixes alkaline powder with waste water while stirring, then stands 20 minutes, and upper layer waste water pours into reactor again after standing, and
The sediment of bottom is placed in again in container one；
Third step, drying precipitate are handled, and the sediment in container one is contacted using 110 °C ~ 350 °C of high-temperature flue gas, sludge
Surface moisture evaporates rapidly, is conducive to the drying and dehydrating of sludge, sludge is sterilized with this, destroy colloid and moisture evaporation and
It is dry, the moisture content in sludge is reduced, increases the rate of drying of sediment, the sludge after drying process can be used for planting
It plants；
The calcium carbonate (CaSO4) of 2 ~ 5g is added in 4th step, vertical-flow sedimentation, the waste water being placed in reactor, stirs after twenty minutes,
Vertical sedimentation basin sedimentation is carried out, the precipitating of mud waste water can be accelerated, do not influence biochemical process, then add quality percentage
Coal ash than 0.5 ~ 3% carries out adsorption treatment with this coal ash, reduces the impurity of the waste water in reactor.
2. a kind of method for sludge treatment for sewage treatment plant according to claim 1, it is characterised in that: described
In one-shot job, alkaline powder is the iron hydroxide that concentration is 0.02%.
3. a kind of method for sludge treatment for sewage treatment plant according to claim 1, it is characterised in that: described
In four step operations, reactor is tower reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634716.1A CN109553219A (en) | 2018-12-29 | 2018-12-29 | A kind of method for sludge treatment for sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634716.1A CN109553219A (en) | 2018-12-29 | 2018-12-29 | A kind of method for sludge treatment for sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109553219A true CN109553219A (en) | 2019-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634716.1A Pending CN109553219A (en) | 2018-12-29 | 2018-12-29 | A kind of method for sludge treatment for sewage treatment plant |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838084A (en) * | 2010-05-25 | 2010-09-22 | 清华大学 | Biochemical regulation and treatment process for sewage of urban domestic garbage transfer station |
| CN202369470U (en) * | 2011-11-10 | 2012-08-08 | 复旦大学 | Starch wastewater biological treatment system |
| CN105110587A (en) * | 2015-09-29 | 2015-12-02 | 天津壹新环保工程有限公司 | Sludge pretreatment technology with desalting effect |
-
2018
- 2018-12-29 CN CN201811634716.1A patent/CN109553219A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838084A (en) * | 2010-05-25 | 2010-09-22 | 清华大学 | Biochemical regulation and treatment process for sewage of urban domestic garbage transfer station |
| CN202369470U (en) * | 2011-11-10 | 2012-08-08 | 复旦大学 | Starch wastewater biological treatment system |
| CN105110587A (en) * | 2015-09-29 | 2015-12-02 | 天津壹新环保工程有限公司 | Sludge pretreatment technology with desalting effect |
Non-Patent Citations (5)
| Title |
|---|
| 全国勘察设计注册工程师环保专业管理委员会 等: "《注册环保工程师专业考试复习教材 固体废弃物处理处置工程技术与实践 上》", 31 March 2017, 重庆大学出版社 * |
| 德格雷蒙公司: "《水处理手册》", 31 December 1983, 中国建设工业出版社 * |
| 德鲁化学公司: "《工业水处理原理》", 30 April 1984, 冶金工业出版社 * |
| 曾永刚 等: "《水污染控制工程》", 30 April 2018, 电子科技大学出版社 * |
| 朱亦仁: "《环境污染治理技术》", 31 December 1998, 中国环境科学出版社 * |
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Application publication date: 20190402 |
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