CN110156300A - A kind of urban river sediment dehydrating and curing and resource utilization method - Google Patents
A kind of urban river sediment dehydrating and curing and resource utilization method Download PDFInfo
- Publication number
- CN110156300A CN110156300A CN201910459186.XA CN201910459186A CN110156300A CN 110156300 A CN110156300 A CN 110156300A CN 201910459186 A CN201910459186 A CN 201910459186A CN 110156300 A CN110156300 A CN 110156300A
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- Prior art keywords
- dehydrating
- resource utilization
- agent
- curing
- mud
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- 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
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
-
- 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
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of urban river sediment dehydrating and curing and resource utilization methods, the following steps are included: first the bulky grain body refuse in mud is separated with braided fabric using vibrating screen, gel breaker, dehydrating agent and heavy metal are added into the bulky grain body refuse isolated and is reduced agent, and it is put into reaction kettle stirring, using plate and frame filter press by the sludge press filtration after stirring at mud cake, mud cake is crushed using crusher.A kind of urban river sediment dehydrating and curing of the present invention and resource utilization method, use rubber breaker treated mud, 40%~45% is dropped to plate and frame filter press squeezing moisture content again, in mud cake shape, without tail water in transport, the processing and resource utilization of municipal sludge, always government's urgent problem, this patent is intended to solve this problem, on the one hand a large amount of Treatment of Sludge, another aspect sludge is effectively treated, while becoming compost, road-making material, material reclamation etc. is the thing benefited the nation and the people.
Description
Technical field
The present invention relates to mud to administer field, in particular to a kind of urban river sediment dehydrating and curing and resource utilization side
Method.
Background technique
The resource utilization of the regulation of city river black and odorous water and mud is always a big problem, even to this day not yet thoroughly
It solves；
Mud is the solidliquid mixture that zoogloea by bacterial fungus active somatic cell and its formation and water are formed, hardly possible dehydration
For reason in the composition of moisture, main component is SiO2, CaO etc.；
Probably there are four types of combining forms for the moisture of composition sludge:
(1), Interstitial Water (Free water): the Interstitial Water surrounded by size sludge is not bound directly with solid, in gravity
Effect is lower to be separated.This part water accounts for about total moisture 70%；
(2), it capillary water: is constituted in the circumgranular water of tiny sewage sludge solid of highly dense due to generating capillary phenomenon
Several water below: wedge-shaped capillary combination water, since the effect of capillary pressure combines wedge-shaped capillary water on the contact surface of particle；Between
Gap capillary combination water, riddles the capillary water in the space between solid and solid；Crack capillary combination water；Riddle solid itself
Capillary water in crack will remove the combination water under capillary pressure effect, as long as needing to impose the resultant force with capillary surface tension
Opposite effect power seeps power etc. using centrifugal force (centrifuge), negative pressure (vacuum filter), electric osmose power or heat, this part water is about
Account for total moisture 20%；
(3), it adsorbs water: being adsorbed with molecular force and solid, centrifugation or the removing of other machinery power cannot be used；
(4), internal water；Interstitial Water, capillary combination water, surface adsorption water are all outside liquid, a part of water quilt of sludge
It is enclosed in the cell membrane of microorganism, such as cell liquid, this internal water and solid bond are very close, to remove these water, it is necessary to
Cell membrane is destroyed, can be arranged by biodegradable (aerobic oxidation, Composting, anaerobic oxidation), or using high temperature and freezing etc.
It applies, the handy mechanical force removing of conventional process scheme first two moisture, latter two moisture removing is difficult, and it is tired to cause sludge dewatering
Difficulty, moisture content is high, and energy consumption is high, for this purpose, it is proposed that a kind of urban river sediment dehydrating and curing and resource utilization method.
Summary of the invention
It, can be with the main purpose of the present invention is to provide a kind of urban river sediment dehydrating and curing and resource utilization method
Effectively solve the problems in background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of urban river sediment dehydrating and curing and resource utilization method, comprising the following steps:
(1), mud sieve: first using vibrating screen by mud bulky grain body refuse and braided fabric separate；
(2), body refuse stirs: gel breaker, dehydrating agent and heavy metal are added into the bulky grain body refuse isolated and is reduced agent, and
It is put into reaction kettle stirring；
(3), filters pressing: using plate and frame filter press by the sludge press filtration after stirring at mud cake；
(4), sludge crushing solidifies: being crushed using crusher to mud cake, while water sealing agent and early strength agent and increasing is added
Strong agent, by sludge agitation powdering；
(5), sunning dehydration: the mud powder after stirring is paved in airing field, and is tedded；
(6), resource utilization: adding different curing agent into mud powder, reaches respective requirement and relevant industries mark
It is quasi-.
Preferably, in the step (2), gel breaker is made of hydrochloric acid, and dehydrating agent is by sodium metnylene bis-naphthalene sulfonate polymer.
Preferably, in the step (2), then when will be stirred, reaction kettle is sealed.
Preferably, in the step (3), moisture content drops to 40%~45% in mud cake.
Preferably, in the step (4), after cake crushing mixing, the moisture content 28~30% in sludge.
Preferably, in the step (4), early strength agent is by CaCl2Composition.
Preferably, in the step (5), tedding the time is 3~5 days so that the water content in mud powder drop to 18%~
20%.
Preferably, in the step (6), curing agent curing agent parts by weight are by 30~35 parts of dehydrating agents, 10~50 parts of morning
Strong agent, 10~30 parts of reinforcing agents and 1~2 part of heavy metal decrement agent composition.
Compared with prior art, the invention has the following beneficial effects:
Urban river sediment have the moisture percentage in sewage sludge squeezed out with plate and frame type filter-press of gluey sludge still 83%~
Between 89%, in stream modeling shape, Automobile Transportation can not be directly used, and with rubber breaker treated mud, then with plate and frame filter press pressure
It squeezes moisture content and drops to 40%~45%, be in mud cake shape, without tail water in transport.
The processing and resource utilization of municipal sludge, are always government's urgent problem, and this patent is intended to solve this
A problem.On the one hand a large amount of Treatment of Sludge, another aspect sludge are effectively treated, while becoming compost, road-making material, filling out
Extra large material etc. is the thing benefited the nation and the people.
Detailed description of the invention
Fig. 1 is a kind of urban river sediment dehydrating and curing of the present invention and resource utilization method overall structure 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.
The following steps are included:
(1), mud sieve: first using vibrating screen by mud bulky grain body refuse and braided fabric separate；
(2), body refuse stirs: gel breaker, dehydrating agent and heavy metal are added into the bulky grain body refuse isolated and is reduced agent, and
When being put into reaction kettle stirring, then will be stirred, reaction kettle is sealed, gel breaker is made of hydrochloric acid, and dehydrating agent is by methylene two
Polynaphthalene sulphonate；
(3), filters pressing: using plate and frame filter press by the sludge press filtration after stirring at mud cake, moisture content drops to 40% in mud cake
~45%；
(4), sludge crushing solidifies: being crushed using crusher to mud cake, while water sealing agent and early strength agent and increasing is added
Strong agent, by sludge agitation powdering, after cake crushing mixing, the moisture content 28~30% in sludge, early strength agent is by CaCl2Group
At；
(5), sunning dehydration: the mud powder after stirring being paved in airing field, and is tedded, and tedding the time is 3~5d, is made
The water content obtained in mud powder drops to 18%~20%；
(6), resource utilization: adding different curing agent into mud powder, reaches respective requirement and relevant industries mark
Standard, curing agent curing agent parts by weight are by 30~35 parts of dehydrating agents, 10~50 parts of early strength agent, 10~30 parts of reinforcing agents and 1~2 part
Heavy metal is reduced agent composition.
Heavy metal is reduced the metal king that Australia is selected in agent.
Curing agent and sludge sufficiently mix, and inside reaction kettle under the action of paddle, curing agent is introduced in sludge by force
Walk particle among, through reaction after a period of time, the water in sludge is sufficiently reacted with curing agent becomes the crystallization water, sludge
Channel is opened, each self-forming of granule, and heavy metal and curing agent reaction generate new substance, and content reduces, and controls incorporation tune
Whole formula can make its content lower than state specified standards.
Urban river sediment have the moisture percentage in sewage sludge squeezed out with plate and frame type filter-press of gluey sludge still 83%~
Between 89%, in stream modeling shape, Automobile Transportation can not be directly used, and with rubber breaker treated mud, then with plate and frame filter press pressure
It squeezes moisture content and drops to 40%~45%, be in mud cake shape, without tail water in transport.
The processing and resource utilization of municipal sludge, are always government's urgent problem, and this patent is intended to solve this
A problem.On the one hand a large amount of Treatment of Sludge, another aspect sludge are effectively treated, while becoming compost, road-making material, filling out
Extra large material etc. is the thing benefited the nation and the people.
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 (8)
1. a kind of urban river sediment dehydrating and curing and resource utilization method, which comprises the following steps:
(1), mud sieve: first using vibrating screen by mud bulky grain body refuse and braided fabric separate；
(2), body refuse stirs: gel breaker, dehydrating agent and heavy metal being added into the bulky grain body refuse isolated and is reduced agent, and is put into
Reaction kettle stirring；
(3), filters pressing: using plate and frame filter press by the sludge press filtration after stirring at mud cake；
(4), sludge crushing solidifies: mud cake is crushed using crusher, while water sealing agent and early strength agent and reinforcing agent is added,
By sludge agitation powdering；
(5), sunning dehydration: the mud powder after stirring is paved in airing field, and is tedded；
(6), resource utilization: adding different curing agent into mud powder, reaches respective requirement and relevant industries standard.
2. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (2), gel breaker is made of hydrochloric acid, and dehydrating agent is by sodium metnylene bis-naphthalene sulfonate polymer.
3. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (2), then when will be stirred, reaction kettle is sealed.
4. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (3), moisture content drops to 40%~45% in mud cake.
5. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (4), after cake crushing mixing, the moisture content 28~30% in sludge.
6. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (4), early strength agent is by CaCl2Composition.
7. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (5), tedding the time is 3~5d, so that the water content in mud powder drops to 18%~20%.
8. a kind of urban river sediment dehydrating and curing according to claim 1 and resource utilization method, it is characterised in that:
In the step (6), curing agent curing agent parts by weight are by 30~35 parts of dehydrating agents, 10~50 parts of early strength agent, 10~30 parts of increasings
Strong agent and 1~2 part of heavy metal decrement agent composition.
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Cited By (7)
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|---|---|---|---|---|
| CN110981129A (en) * | 2019-12-09 | 2020-04-10 | 宝武集团环境资源科技有限公司 | Treatment method for recycling sewer sludge and prepared PC iron correction material |
| CN111204948A (en) * | 2020-02-20 | 2020-05-29 | 浙江省疏浚工程有限公司 | Comprehensive treatment system for squeezing bottom mud |
| CN111499136A (en) * | 2020-05-14 | 2020-08-07 | 广东华泱技术有限公司 | Innocent treatment method for river and lake sludge |
| CN111517618A (en) * | 2020-02-01 | 2020-08-11 | 广东泉兴生态科技有限公司 | Method for quickly using town sludge as backfill soil for construction land |
| CN111606542A (en) * | 2020-04-21 | 2020-09-01 | 路德环境科技股份有限公司 | Formula for repairing river and lake silt and method for preparing green soil by using formula |
| CN112960888A (en) * | 2021-02-05 | 2021-06-15 | 绿润环境科技(宁波)有限公司 | Sludge treatment system and treatment method thereof |
| CN115959809A (en) * | 2022-12-28 | 2023-04-14 | 浙江筑微科技有限公司 | Multifunctional sludge treatment experiment and detection method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981129A (en) * | 2019-12-09 | 2020-04-10 | 宝武集团环境资源科技有限公司 | Treatment method for recycling sewer sludge and prepared PC iron correction material |
| CN111517618A (en) * | 2020-02-01 | 2020-08-11 | 广东泉兴生态科技有限公司 | Method for quickly using town sludge as backfill soil for construction land |
| CN111204948A (en) * | 2020-02-20 | 2020-05-29 | 浙江省疏浚工程有限公司 | Comprehensive treatment system for squeezing bottom mud |
| CN111606542A (en) * | 2020-04-21 | 2020-09-01 | 路德环境科技股份有限公司 | Formula for repairing river and lake silt and method for preparing green soil by using formula |
| CN111499136A (en) * | 2020-05-14 | 2020-08-07 | 广东华泱技术有限公司 | Innocent treatment method for river and lake sludge |
| CN112960888A (en) * | 2021-02-05 | 2021-06-15 | 绿润环境科技(宁波)有限公司 | Sludge treatment system and treatment method thereof |
| CN115959809A (en) * | 2022-12-28 | 2023-04-14 | 浙江筑微科技有限公司 | Multifunctional sludge treatment experiment and detection method |
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Application publication date: 20190823 |