CN107915392A - Small river sludge ecological treatment system in cities and towns - Google Patents
Small river sludge ecological treatment system in cities and towns Download PDFInfo
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- CN107915392A CN107915392A CN201711422327.8A CN201711422327A CN107915392A CN 107915392 A CN107915392 A CN 107915392A CN 201711422327 A CN201711422327 A CN 201711422327A CN 107915392 A CN107915392 A CN 107915392A
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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
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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
- C02F11/004—Sludge detoxification
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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
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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
- C02F11/02—Biological treatment
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
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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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal 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
- 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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- 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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- 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
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
Small river sludge ecological treatment system in cities and towns, system include five channel cleanout, mud pumping, chemicals dosing plant, reaction unit and slurry dewatering solidifying submodules；In cities and towns in small channel cleanout sludge submodule, connect mud pumping submodule and chemicals dosing plant submodule, macromolecule water process flocculation medicament is selected according to river bottom mud property analysis, medicament is put into by mud pumping system by chemicals dosing plant submodule, mud is fully reacted with medicament in reaction unit submodule, finally cure in the dewatering container of slurry dewatering solidifying submodule and realize mud-water separation；Realize the minimizing of sludge, stabilisation, innoxious and recycling treatment.Construction noise is low, does not easily cause secondary pollution, and the processing volume reduction effect of waste water and sludge is good efficient, and sludge volume can substantially reduce more than 50% in one month, and without fixed workshop, processing cost is low, disposal ability can flexible modulation, it is applied widely.
Description
Technical field
The invention belongs to the treatment technology of IPC classification C02F water, waste water, sewage or sludge, especially river channel in cities and towns
Sludge ecological treatment system.
Background technology
Water resource only accounts for the 1/4 of world average level per capita in China, and urban lakes river is the important of urban ecological system
Part, carries out water environment improvement work for safeguarding balance of city ecosystem, improving living environment has important meaning
Justice.The main project of regulating water environment has：Main river comprehensive improvement, medium and small river channel ecology are administered, cities and towns creek pool canal is cleared up,
Lake and reservoir ecological management etc..The guiding theory of regulating water environment is：Focus on source control, strengthen water pollution and administer.Water ring
Border, which is administered, generally to be had：River wheel is dredged, cuts dirty pollution treatment, dykes and dams reparation, adjusts running water body, ecology is built under water, superaqual landscape is built, duty
Appoint follow-up maintenance etc..
It deposited since substantial amounts of industrial production, sanitary wastewater are directly discharged into river, in cities and towns in small river sludge various
Harmful substance, from heavy metal pollution to various teratogenesis, it is carcinogenic, cause a disease organic pollution it is complete, river loses reasonably
Biotic environment, becomes natural sewer, while medium and small river channel sedimentation phenomenon is commonplace, and river is original to regulate and store and flood and take precautions against natural calamities
The ability of mitigation has weakened.It is very high to be additionally, since sludge moisture content, it is sufficiently bulky, and be in mobility, transport and consumption are tired
It is difficult；Content of organics is very high in sludge, easily corruption and produces stench；Contain a large amount of pathogens, parasitic ovum and disease in sludge
Poison, easily causes the propagation of infectious disease large area；Containing metal and nonmetallic in sludge, including iron, manganese, lead, chromium, zinc, mercury, arsenic and
Tin etc., causes heavy metal pollution and harm.
Disclosed pertinent literature is less.
Shanghai Li Shui aquatic environments research institute discloses a kind of city river life in Chinese patent application 201611258412.0
The evaluation method of state reparation.Its feature step is as follows：(A) appraisement system of urban river ecological reparation is created as three layers
Secondary evaluation system structure, it is rule layer that urban river ecological, which is evaluated as a big system, two-level index, is classified as
The suitable three subsystems of river water quality situation, ecosystem health, ecoscape；Three-level index is some specific targets, can be with
Directly reflect the overall state of each subsystem；(B) evaluation procedure：(B1) determine river to be evaluated, set according to the length in river
Meter sampling website；(B2) monitor sample collection and analysis；(B21) water quality physical and chemical index；(B22) ecological index：(B23) ecological landscape
See Leaf element contents；(B3) evaluation result is analyzed；(B4) river channel ecology health status is judged.Administered for scientific evaluation river channel ecology
Effect, consolidates river channel ecology improvement achievement and is of great significance.Applied in evaluation suitable for urban river ecological reparation.
Hangzhou Tianyu Environmental Protection Engineering Co., Ltd is in Chinese patent application 201410050760.3 in Chinese patent Shen
A kind of river corridor restoration system please be disclose, is comprised the following steps successively：The improvement of heavy polluted water, except slight dirty after biogas
Contaminate the improvement of water body and the long-term of micropollutant water is administered and safeguarded.The biogas in solar energy and water can be utilized micro- to water body
Bubble oxygenation carries out biological pollution treatment, is able to beyond the long-acting restoration of the ecosystem in the river network of rivers, using biological membrane processing method reach it is long-term, can
Lasting improvement, reparation and the effect of safeguard river network of rivers Water quality, while upper strata floating body is decorated with the bionical flowers of emulation, plant
Thing, such as water lily, lotus, water plant of the biologic packing material as water plant in water, decorate beautification river network of rivers two sides ring
Border.
Dongguan Yueyuan Packing Co., Ltd. is disclosed in Chinese patent application Chinese patent application 201210587658.8
A kind of method of inexpensive, sustainable cleaning river sludge, the present invention only carries out part cleaning to river sludge, compared to traditional
Disposable cleaning can save a large amount of manpower and materials, save 30%~50% cleaning up cost.The sludge that bottom of river channel retains is favourable
In the self-purification capacity for recovering water body, after the cleaning of more second part, the lasting ecological balance of the current in river is can reach, entrance is good
Property circulation.Using the present invention method cleaning after river, long-term water quality is limpid dark green, it is heavy, floating, endure etc. water plant and water
Lively thing reappears, the self-purification capacity of water body is recovered, and is truly realized the reconstruction of the ecosystem.
Peaceful JingHua Environmental Protection Technology Co., Ltd of helping discloses a kind of efficient river in Chinese patent application 201611081451.8
Road administering method, belongs to technology of waste water control field, includes the removal of chromium, the removal of zinc, nickel, the removal of copper, manganese, and cyanogen is gone
Remove, the removal of COD, ammonia nitrogen, total nitrogen, the removal of total phosphorus, suspended matter, reach river waste water by the processing of above-mentioned 6 steps
Discharge standard.The administering method, eliminates poisonous and harmful heavy metallic in river sewage, is more advantageous to follow-up river corridor restoration；
The removal step of river heavy metals is the removal successively gradually risen according to pH, will be placed on finally except cyanogen step, and divide two-stage
The pH highests that oxidation reaction, i.e. stair oxidation stage need, the pH that the secondary oxidation stage needs just meet biochemical close to neutrality
Inflow requirement, so the removal process of heavy metal, it is not necessary to which acid-base accommodation pH back and forth, simplifies technological process, saves medicament
Addition；The biological thickening reactor used, takes up little area, and the sludge concentration after processing is high.
Processing of traditional river regulation to river sludge mainly uses hydraulic reclamation method and mechanical dehydration facture.
Wherein, hydraulic reclamation method is to be removed river bottom mud using slush pump or cutter suction dredger, is delivered to littoral setting
Mud-dumping yard；When the condition for not possessing spoil disposal nearby, then need outer to be transported to other places and filled.Hydraulic reclamation method adds extra
Cost of transportation, sludge drying speed is slow, and the harmful substance in river sludge is not handled, and be easy to cause two to environment
Heavy metal in secondary pollution, especially sludge can cause to seriously endanger to drinking water and food security, and the health for jeopardizing the mankind is raw
Deposit.The place to go of sludge after processing has two kinds：First, renting littoral vacant lot nearby, mud pit is set, by sludge pumping to mud
Chi Rangqi nature desiccation；Second, when not possessing the condition for setting mud pit, using mud tank car by mud outward transport to other fields
Ground is filled.But this processing mode adds extra cost of transportation, sludge drying speed is slow, and not dirty to river
Harmful substance in mud is handled, and the heavy metal be easy to causeing in the secondary pollution to environment, especially sludge can be to drinking
Water and food security cause to seriously endanger, and jeopardize the health existence of the mankind.
Wherein, mechanical dehydration method is that river sludge is carried out dehydrating by mechanical equipments such as press filtration, vacuum systems, place
Sludge reaches minimizing and recycling after reason, but equipment investment is big, and processing cost is high.Mechanical dehydration method is using centrifugal machine, pressure
Filter tool or vacuum mode carry out mechanical dehydration, and equipment is taken up an area greatly, need consumption electric power, investment is big, and dehydrated sludge need to carry out depth
Bury, burn or other secondary harmless treatments.Mechanical dehydration, equipment are carried out using centrifugal machine, press filtration machinery or vacuum mode
Take up an area greatly, need consumption electric power, investment is big, and dehydrated sludge need to carry out buried, burning or other secondary harmless treatments.
The content of the invention
The object of the present invention is to provide small river sludge ecological treatment system in cities and towns, the decrement of sludge can be effectively realized
Change, stabilize, innoxious and recycling.
The purpose of the present invention will be realized by following technical measures：System includes channel cleanout, mud pumping, dosing dress
Put, five submodules of reaction unit and slurry dewatering solidifying；In cities and towns in the online dredged sediment submodule of river channel, mud is connected
Stock pump send submodule and chemicals dosing plant submodule, and macromolecule water process flocculation medicament is selected according to river bottom mud property analysis,
Medicament is put into by mud pumping system by chemicals dosing plant submodule, makes mud abundant with medicament in reaction unit submodule
Reaction, finally cures in the dewatering container of slurry dewatering solidifying submodule and realizes mud-water separation.
Before treatment, collection river bottom mud does physical and chemical experiment, prepares treatment agent according to the property of river bottom mud, and do medicine
Agent addition experiment, determines Drug level, gathers former river water and does background test；By mud pumping pipeline, chemicals dosing plant, reaction unit
And sludge dewatering cures container and is attached by figure, and clear water is pumped after connection and carries out tightness experiment, checks for leaking.To dirt
Mud cures container and carries out preventive measures against overturning, and gutter is set in ground layer overlay drainage fine sand, and in surrounding；
River is carried out to rush what, using grid block remove rubbish debris by mud pumping to mud buffer pool, in mud
Buffer pool monitors the moisture content of mud in real time, and adjusting makes the moisture control of mud more than 95%；Mud pumping is passed through again
Enter after dosing reaction and cure container progress nature desiccation；
Chemicals dosing plant sets two grug feeding jars, and a preparation and a use, medicine is supplied by screw pump, Valve controlling medicinal cupping.Grug feeding jar is set
Mixer, medicament is mixed with water, wherein, water is tap water or clean rainwater, and drug concentration is in one thousandth to 5/1000ths
Between, stir 30 minutes or so, medicament is fully dissolved；According to riverway sludge and water quality test analysis result, using suitable
High polymer coagulant and heavy metal stabilizer；The mud of pumping enters U-shaped coil pipe reaction feeder apparatus with medicament and is mixed at the same time
Reaction is closed, slurry reaction effect is checked by inspection socket, coil lengths are adjusted according to effect, generally at 8~10 groups.Basis at the same time
The state of mud in inspection socket, adjusts dosing valve and concentration of hydraulic mixture, slurry reaction effect is reached optimal；
Mud enters dehydrating and curing closed vessel, and mud is filled up container, realizes mud-water separation, mud is stayed in module；
Since mud is aqueous, it can divide to fill several times mud is full of container as far as possible.Full of rear enclosed container, mud in container into
Row nature desiccation, by sealing the pathogen in desiccation kill mud, parasitic ovum, the heavy metal being passivated in mud.During can lead to
Cross reserved opening and observation detection is carried out to mud in bag, depending on weather conditions, opened after one to three months and abolish dehydrating and curing appearance
Device, Nutrition Soil is used as to the mud treatment in situ after processing, or outward transport.Soil after curing can directly plant crops, greening,
Bed course available for lie fallow on river side pavement or flood control passage.
Especially, river sludge is subjected to clear what with giant or pumping, by the mud pumping obtained by clear what to mud
Buffer pool；From buffer pool by mud pumping to reaction unit, particular agent is added into mud by medicated module, make mud with
Medicament fully reacts in reaction unit；Mud after reaction enters slurry dewatering solidifying module by pipeline, in curing mold
Decomposed fermentation process is carried out to mud in block, it is heavy metal-passivated, kill pathogenic microorganism, parasitic ovum and weed seed, processing
Mud afterwards can do fertilizer or Nutrition Soil.
River sludge is passed through the contaminated bed mud in river by draining hydraulicking dredging or pump suction type underwater desilting mode
Dosing is crossed to be pumped into container.
Chemicals dosing plant belongs to fabricated construction, easy to disassemble, transport and recycle；The chemicals dosing plant is by container
Tank, mixer and dosing pump, pipeline composition, can also use easy assembled dosing to fill using automatic medicine adding apparatus
Put.
Medicament is pumped into mud channel by medicated module by screw pump, and flowmeter, flow tune are equipped with dosing pipe
Section valve and the check-valves for preventing medicament from flowing back.
Reaction unit belongs to fabricated construction, easy to disassemble, transport and recycle, and the reaction unit is by U-shaped disk
Cast forms, and coil lengths is selected according to different sludge qualities and adding consistency selection reaction required time, in reaction unit
End sets mud inspection hole and detection sample tap.
Dehydrating and curing module is a kind of ecology dehydration soil pipe, using limited beta site bleeding curing process on the spot,
Without dewatering machine equipment investment, configured without electric power, without movement, sludge is " locked in " operation during the dehydration process, can
Avoid producing secondary pollution, the mud after dehydration can be used as the bank protection soil or agricultural, greening and road cushion use of river and lake
Soil；Water purification after processing can qualified discharge or Virescence reuse.
Especially, treatment agent is the poly- polyacrylamides of PAM, drug concentration 2 ‰；Sludge maximum particle diameter 20cmm, controls mud
Moisture content is starched 95% or so；Slush pump flow is 120m3/ h, dosing pump discharge are 5m3/h；U-shaped other 10 groups of pipe quantity, mud
30 days dehydrating and curing container reaction time；Result of implementation includes：Rollback water correction, permanganic acid index decreased 96.20%, chemistry
Oxygen demand declines 96.30%, and total phosphorus declines 95.63%, and sulfide declines 96.01%, and transparency greatly increases；Reducing sludge volume is imitated
Fruit is notable, and moisture content is reduced to 47.6% after one month, and volume reduction effect reaches more than 50%, total chromium content in soil, total cadmium, total lead, total
The heavy metals such as arsenic, benzo (a) pyrene and Toxic index are satisfied by《Pollutant catabolic gene standard in agricultural sludge》GB4284-84 is provided
Agricultural sludge limit value, reach the effect of sewage sludge harmlessness.
Advantages of the present invention and effect：By introducing chemicals dosing plant, reaction unit and slurry dewatering solidifying container, realize dirty
The minimizing of mud, stabilisation, innoxious and recycling treatment.On the other hand, the decrement of sludge is realized by physical-chemical reaction
Change, stabilize, innoxious and recycling treatment, the pollution sources of river water environment are handled in terms of internal cause and external source two,
Efficiently solve secondary pollution of traditional river regulation polluted bed mud to environment.Invested without large scale equipment and workshop, sludge takes off
Water section has the advantages that energy-saving and emission-reduction without electric power.Construction noise is low, does not easily cause secondary pollution, the processing of waste water and sludge
Volume reduction effect is good efficient, and sludge volume can substantially reduce more than 50% in one month, to follow-up removal and handles more
It is easy.Pathogen and the pathogenic bacteria in sludge can be eliminated to greatest extent to sludge.Deleterious pathogens in sludge, again can be removed
The pollutants such as metal.Technique is simple, easily operated, and without fixed workshop, processing cost is low, disposal ability can flexible modulation, fit
It is wide with scope.
Brief description of the drawings
Fig. 1 is system step schematic block diagram in the embodiment of the present invention 1.
Embodiment
The principle of the invention is, on the basis of rushing what in traditional river, introduces chemicals dosing plant, reaction unit and slurry dewatering
Cure container, realize the minimizing of sludge, stabilisation, innoxious and recycling treatment.
In the present invention, as shown in Figure 1, system includes channel cleanout, mud pumping, chemicals dosing plant, reaction unit and mud
Starch five submodules of dehydrating and curing；In cities and towns in the online dredged sediment submodule of river channel, connection mud pumping submodule with
Chemicals dosing plant submodule, selects macromolecule water process flocculation medicament according to river bottom mud property analysis, passes through chemicals dosing plant
Medicament is put into mud pumping system by module, mud is fully reacted with medicament in reaction unit submodule, finally in mud
Starch to cure in the dewatering container of dehydrating and curing submodule and realize mud-water separation.
In the present invention, before treatment, collection river bottom mud does physical and chemical experiment, and processing medicine is prepared according to the property of river bottom mud
Agent, and medicament addition experiment is done, determine Drug level, gather former river water and do background test；Mud pumping pipeline, dosing are filled
Put, reaction unit and sludge dewatering cure container and are attached by figure, clear water is pumped after connection and carries out tightness experiment, inspection has
Ne-leakage.Preventive measures against overturning is carried out to sludge curing container, draining is set in ground layer overlay drainage fine sand, and in surrounding
Ditch；River is carried out to rush what, debris is removed rubbish by mud pumping to mud buffer pool using grid block, in mud buffer pool
Monitor the moisture content of mud in real time, adjusting makes the moisture control of mud more than 95%；It is again that mud pumping is anti-by dosing
It should afterwards enter and cure container progress nature desiccation；Chemicals dosing plant sets two grug feeding jars, and a preparation and a use, passes through screw pump, valve
Control medicinal cupping supplies medicine.Grug feeding jar sets mixer, and medicament is mixed with water, wherein, water is tap water or clean rainwater, drug concentration
Between one thousandth to 5/1000ths, stir 30 minutes or so, medicament is fully dissolved；According to riverway sludge and water quality test
Analysis result, using suitable high polymer coagulant and heavy metal stabilizer；The mud of pumping enters U at the same time with medicament
Shape coil pipe reaction feeder apparatus carries out hybrid reaction, and slurry reaction effect is checked by inspection socket, and coil lengths are adjusted according to effect,
Generally at 8~10 groups.At the same time according to the state of mud in inspection socket, dosing valve and concentration of hydraulic mixture are adjusted, imitates slurry reaction
Fruit reaches optimal；Mud enters dehydrating and curing closed vessel, and mud is filled up container, realizes mud-water separation, mud stays in module
It is interior；Since mud is aqueous, it can divide to fill several times mud is full of container as far as possible.Full of rear enclosed container, mud is in container
Interior progress nature desiccation, by sealing the pathogen in desiccation kill mud, parasitic ovum, the heavy metal being passivated in mud.During
Observation detection can be carried out to mud in bag by reserved opening, depending on weather conditions, be opened after one to three months and abolish dehydration admittedly
Change container, Nutrition Soil is used as to the mud treatment in situ after processing, or outward transport.Soil after curing can directly plant crops, green
Change, it can also be used to the bed course of lie fallow on river side pavement or flood control passage.
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1：River sludge is subjected to clear what with giant or pumping, by the mud pumping obtained by clear what to mud
Buffer pool；From buffer pool by mud pumping to reaction unit, particular agent is added into mud by medicated module, make mud with
Medicament fully reacts in reaction unit；Mud after reaction enters slurry dewatering solidifying module by pipeline, in curing mold
Decomposed fermentation process is carried out to mud in block, it is heavy metal-passivated, kill pathogenic microorganism, parasitic ovum and weed seed, processing
Mud afterwards can do fertilizer or Nutrition Soil.
River sludge is passed through the contaminated bed mud in river by draining hydraulicking dredging or pump suction type underwater desilting mode
Dosing is crossed to be pumped into container.
Chemicals dosing plant belongs to fabricated construction, easy to disassemble, transport and recycle；The chemicals dosing plant is by container
Tank, mixer and dosing pump, pipeline composition, can also use easy assembled dosing to fill using automatic medicine adding apparatus
Put.
Medicament is pumped into mud channel by medicated module by screw pump, and flowmeter, flow tune are equipped with dosing pipe
Section valve and the check-valves for preventing medicament from flowing back.
Reaction unit belongs to fabricated construction, easy to disassemble, transport and recycle, and the reaction unit is by U-shaped disk
Cast forms, and coil lengths is selected according to different sludge qualities and adding consistency selection reaction required time, in reaction unit
End sets mud inspection hole and detection sample tap.
Dehydrating and curing module is a kind of ecology dehydration soil pipe, using limited beta site bleeding curing process on the spot,
Without dewatering machine equipment investment, configured without electric power, without movement, sludge is " locked in " operation during the dehydration process, can
Avoid producing secondary pollution, the mud after dehydration can be used as the bank protection soil or agricultural, greening and road cushion use of river and lake
Soil；Water purification after processing can qualified discharge or Virescence reuse.
In the embodiment of the present invention, treatment agent is the poly- polyacrylamides of PAM, drug concentration 2 ‰；Sludge maximum particle diameter
20cmm, control mud moisture content is 95% or so；Slush pump flow is 120m3/ h, dosing pump discharge are 5m3/h；U-shaped other pipe number
10 groups are measured, 30 days slurry dewatering solidifying container reaction time；Result of implementation includes：Rollback water correction, permanganic acid index decreased
96.20%, COD declines 96.30%, and total phosphorus declines 95.63%, and sulfide declines 96.01%, and transparency greatly increases
It is high；Reducing sludge volume significant effect, moisture content is reduced to 47.6% after one month, and volume reduction effect reaches more than 50%, total chromium content in soil,
The heavy metals such as total cadmium, total lead, total arsenic, benzo (a) pyrene and Toxic index are satisfied by《Pollutant catabolic gene standard in agricultural sludge》
Agricultural sludge limit value as defined in GB4284-84, reaches the effect of sewage sludge harmlessness.
Embodiment 2：
The present embodiment is certain city's river channel Introduction of The Comprehensive Regulating Works.
1) implementation condition；
Before processing selectes treatment agent by experiment：PAM polyacrylamides, drug concentration 2 ‰.
The clear what in river rushes what using giant, with a 10kw horizontal pump, lift 40m, flow 30m3/ h, two hydraulic giants
Supply water.
Slush pump used in slurry transportation system is 15kw submerged pumps, lift 15m, flow 120m3/h。
Dosing pump used in chemicals dosing plant is two 2.2kw screw pumps, flow 10m3/ h, lift 15m, small pump 3kw used
One, lift 30m, flow 15m, immersible pump3/h；Mixer used is 2 1.5kw deceleration mixers.
The U-shaped other pipe quantity of conversion zone：10 groups；
It is 20mm to control sludge maximum mud footpath in slush pump peripheral hardware strainer, makes mud moisture content 95% or so.
2) supplies consumption；
In the present embodiment, locate sludge water 870m3, 6 days used times.Material manpower consumption is as follows：Medicament 0.35t, closes 20000
Member/t, amounts to 7000 yuan, artificial 24 work day.Count 4 people 6 days, 300 yuan for each person every day, amount to 7200 yuan, power consumption about 720kw, by work
1 yuan/kw of industry electricity consumption, amounts to 720 yuan, 4, sludge curing container, closes 73529 yuan, one group of chemicals dosing plant and conversion zone, including PVC
Pipe：4798 yuan, 3m3Grug feeding jar two:4118 yuan, two, 1.5kw mixers：3000 yuan, screw pump 2:1650 yuan, immersible pump
1：327 yuan, consumptive material：213 yuan, amount to 14106 yuan, about 118 yuan/m of processing direct cost3。
3) result of implementation；
Rollback water correction：Permanganic acid index decreased 96.20%, COD decline 96.30%, and total phosphorus declines
95.63%, sulfide declines 96.01%, and transparency greatly increases.
Reducing sludge volume effect is good：Moisture content is reduced to 47.6% after one month, about 400 side of sludge volume after processing, volume reduction effect
Fruit reaches more than 50%, and the heavy metal such as total chromium content in soil, total cadmium, total lead, total arsenic, benzo (a) pyrene and Toxic index are satisfied by
《Pollutant catabolic gene standard in agricultural sludge》Agricultural sludge limit value as defined in GB4284-84, reaches the effect of sewage sludge harmlessness.
Embodiment 3：
The present embodiment is certain city's black-odor riverway Introduction of The Comprehensive Regulating Works.
1) implementation condition；
Before processing selectes treatment agent by experiment：PAM polyacrylamides, drug concentration 2 ‰.
The clear what in river rushes what using giant, with a 10kw horizontal pump, lift 40m, flow 30m3/ h, to two water
Rifle supplies water.
Slush pump used in slurry transportation system is 15kw submerged pumps, lift 15m, flow 120m3/h。
Dosing pump used in chemicals dosing plant is two 2.2kw screw pumps, flow 10m3/ h, lift 15m, small pump 3kw used
One, immersible pump (lift 30m, flow 15m3/h；Mixer used is 2 2.2kw deceleration mixers.
The U-shaped other pipe quantity of conversion zone：10 groups.
It is 20mm to control sludge maximum mud footpath in slush pump peripheral hardware strainer, makes mud moisture content 95% or so.
2. supplies consumption；
850m under the present embodiment coprocessing sludge water3, 6 days used times.Material manpower consumption is as follows：Medicament 0.42t (20000/
T, amounts to 8200 yuan), on artificial 18 work day, 4 people of meter 6 days, amounts to 7200 yuan, power consumption about 750kw, by industry by 300 yuan for each person every day
1 yuan/kw of electricity consumption, amounts to 750 yuan, 4, sludge curing container, with 73529 yuan, one group of pvc pipe of chemicals dosing plant and conversion zone, with
4798 yuan, 5m3Grug feeding jar two:5124 yuan, two, 2.2kw mixers：3600 yuan, screw pump 2:1650 yuan, immersible pump 1
Platform：327 yuan, consumptive material：250 yuan, amount to 14106 yuan, about 124 yuan/m of processing direct cost3。
3) result of implementation；
Rollback water correction：Permanganic acid index decreased 94.28%；COD declines 93.25%；Total phosphorus declines
96.28%；Sulfide declines 95.13%；Transparency greatly increases.
Reducing sludge volume effect is good：
Moisture content is reduced to 48.6% after one month, and about 420 side of sludge volume, volume reduction effect reach more than 50% after processing,
The heavy metals such as total chromium content in soil, total cadmium, total lead, total arsenic, benzo (a) pyrene and Toxic index are satisfied by《Polluted in agricultural sludge
Thing controls standard》Agricultural sludge limit value as defined in GB4284-84, reaches the effect of sewage sludge harmlessness.
Embodiment 4：
The present embodiment is certain bay university city periphery water system engineering.
1) implementation condition；
Before processing selectes treatment agent by experiment：PAM polyacrylamides, drug concentration 2 ‰.
The clear what in river rushes what using giant, with a 10kw horizontal pump, lift 40m, flow 30m3/ h, to two water
Rifle supplies water.
Slush pump used in slurry transportation system is 15kw submerged pumps, lift 15m, flow 120m3/h。
Dosing pump used in chemicals dosing plant is two 2.2kw screw pumps, flow 10m3/ h, lift 15m, small pump 3kw used
One, lift 30m, flow 15m, immersible pump3/h；Mixer used is 2 2.2kw deceleration mixers.
The U-shaped other pipe quantity of conversion zone：10 groups.
It is 20mm to control sludge maximum mud footpath in slush pump peripheral hardware strainer, makes mud moisture content 95% or so.
2) supplies consumption；
900m below the present embodiment coprocessing sludge water3, 6 days used times.Material manpower consumption is as follows：Medicament 0.5t, meter
20000 yuan/t, amount to 10000 yuan, on artificial 24 work day, with 4 people 6 days, 300 yuan for each person every day, amount to 7200 yuan, power consumption is about
780kw, by 1 yuan/kw of commercial power, amounts to 780 yuan, and 4, sludge curing container closes 73529 yuan, chemicals dosing plant and conversion zone one
Group, pvc pipe：4798 yuan, 5m3Grug feeding jar two:5124 yuan, two, 2.2kw mixers：3600 yuan, screw pump 2:1650 yuan,
1, immersible pump：327 yuan, consumptive material：250 yuan, amount to 14106 yuan, about 119 yuan/m of processing cost3。
3) result of implementation；
Rollback water correction：Permanganic acid index decreased 95.46%；COD declines 92.38%；Total phosphorus declines
94.35%；Sulfide declines 92.18%；Transparency greatly increases.
Reducing sludge volume effect is good：
Moisture content is reduced to 50.8% after one month, and about 400 side of sludge volume, volume reduction effect reach more than 50% after processing,
The heavy metals such as total chromium content in soil, total cadmium, total lead, total arsenic, benzo (a) pyrene and Toxic index are satisfied by《Polluted in agricultural sludge
Thing controls standard》Agricultural sludge limit value as defined in GB4284-84, reaches the effect of sewage sludge harmlessness.
Claims (3)
1. small river sludge ecological treatment system in cities and towns, it is characterised in that system includes channel cleanout, mud pumping, dosing
Five device, reaction unit and slurry dewatering solidifying submodules；In cities and towns in small channel cleanout sludge submodule, mud is connected
Submodule and chemicals dosing plant submodule are pumped, macromolecule water process flocculation medicament is selected according to river bottom mud property analysis, leads to
Cross chemicals dosing plant submodule and medicament is put into mud pumping system, make mud fully anti-with medicament in reaction unit submodule
Should, finally cure in the dewatering container of slurry dewatering solidifying submodule and realize mud-water separation；Before treatment, river bottom mud is gathered
Physical and chemical experiment is done, treatment agent is prepared according to the property of river bottom mud, and does medicament addition experiment, Drug level is determined, gathers
Former river water does background test；Mud pumping pipeline, chemicals dosing plant, reaction unit and sludge dewatering curing container are connected by figure
Connect, clear water is pumped after connection and carries out tightness experiment, checks for leaking；Preventive measures against overturning is carried out to sludge curing container,
Ground layer overlay drainage fine sand, and gutter is set in surrounding；River is carried out to rush what, is removed rubbish using grid block miscellaneous
Mud pumping to mud buffer pool in the moisture content of mud buffer pool real time monitoring mud, is adjusted the moisture content for making mud by thing
Control is more than 95%；Mud pumping is entered after dosing is reacted again and cures container progress nature desiccation；Chemicals dosing plant is set
Two grug feeding jars are put, a preparation and a use, medicine is supplied by screw pump, Valve controlling medicinal cupping；Grug feeding jar sets mixer, and medicament and water are mixed
Close, wherein, water is tap water or clean rainwater, and drug concentration stirs 30 minutes or so between one thousandth to 5/1000ths,
Medicament is set fully to dissolve；According to riverway sludge and water quality test analysis result, using suitable high polymer coagulant and heavy metal
Stabilizer；The mud of pumping enters U-shaped coil pipe reaction feeder apparatus with medicament and carries out hybrid reaction at the same time, passes through inspection socket inspection
Slurry reaction effect, adjusts coil lengths, generally at 8~10 groups according to effect；At the same time according to the state of mud in inspection socket, adjust
Dosing valve and concentration of hydraulic mixture are saved, slurry reaction effect is reached optimal；Mud enters dehydrating and curing closed vessel, and mud is filled out
Full container, realizes mud-water separation, mud is stayed in module；Since mud is aqueous, it can divide to fill several times and as far as possible fill mud
Full container；Full of rear enclosed container, mud carries out nature desiccation in container, by seal desiccation kill mud in pathogen,
Parasitic ovum, the heavy metal being passivated in mud；During observation detection can be carried out to mud in bag by reserved opening, it is vaporous depending on day
Condition, opened after one to three months and abolishes dehydrating and curing container, and nutrition is used as to the mud treatment in situ after processing, or outward transport
Soil；Soil after curing can directly plant crops, greening, it can also be used to the pad of lie fallow on river side pavement or flood control passage
Layer.
2. small river sludge ecological treatment system in cities and towns as claimed in claim 1, it is characterised in that river sludge is high
Hydraulic giant or pumping is pressed to carry out clear what, by the mud pumping obtained by clear what to mud buffer pool；From buffer pool by mud pumping to anti-
Device is answered, particular agent is added into mud by medicated module, mud is fully reacted in reaction unit with medicament；Reaction
Mud afterwards enters slurry dewatering solidifying module by pipeline, and decomposed fermentation process is carried out to mud in curing module, blunt
Change heavy metal, fertilizer or Nutrition Soil can be done by killing pathogenic microorganism, parasitic ovum and weed seed, the mud after processing；
River sludge is by draining hydraulicking dredging or pump suction type underwater desilting mode by the contaminated bed mud in river by adding
Teat pipette is sent in container；
Chemicals dosing plant belongs to fabricated construction, easy to disassemble, transport and recycle；The chemicals dosing plant by container tank, stir
Machine and dosing pump, pipeline composition are mixed, can be that easy assembled chemicals dosing plant can also be used using automatic medicine adding apparatus；
Medicament is pumped into mud channel by medicated module by screw pump, and flowmeter, flow control valve are equipped with dosing pipe
Door and the check-valves for preventing medicament from flowing back；
Reaction unit belongs to fabricated construction, easy to disassemble, transport and recycle, and the reaction unit is by U-shaped coil pipe group
Into according to coil lengths are determined the time required to different sludge qualities and adding consistency selection reaction, setting in reaction unit end
Put mud inspection hole and detection sample tap；
Dehydrating and curing module is a kind of ecology dehydration soil pipe, using limited beta site bleeding curing process on the spot, without
Dewatering machine equipment investment, configures, without movement, sludge is during the dehydration process " locked in " operation, can be avoided without electric power
Produce secondary pollution, the mud after dehydration can be used as river and lake bank protection soil or agricultural, greening and road cushion it is native；Place
Water purification after reason can qualified discharge or Virescence reuse.
3. small river sludge ecological treatment system in cities and towns as claimed in claim 1, it is characterised in that treatment agent PAM
Poly- polyacrylamide, drug concentration 2 ‰；Sludge maximum particle diameter 20cmm, control mud moisture content is 95% or so；Mud pump flow
Measure as 120m3/ h, dosing pump discharge are 5m3/h；U-shaped other 10 groups of pipe quantity, 30 days slurry dewatering solidifying container reaction time；It is real
Applying result includes：Rollback water correction, permanganic acid index decreased 96.20%, COD decline 96.30%, and total phosphorus declines
95.63%, sulfide declines 96.01%, and transparency greatly increases；Reducing sludge volume significant effect, moisture content is reduced to after one month
47.6%, volume reduction effect reaches more than 50%, the heavy metal such as total chromium content in soil, total cadmium, total lead, total arsenic, benzo (a) pyrene and poisonous
Thing index is satisfied by《Pollutant catabolic gene standard in agricultural sludge》Agricultural sludge limit value as defined in GB4284-84, reach sludge without
The effect of evilization.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255840A (en) * | 2019-07-19 | 2019-09-20 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | A kind of novel water course/lake sludge curing system and sludge curing method |
| CN111056718A (en) * | 2019-12-09 | 2020-04-24 | 上海大学 | Intelligent dosing system for sludge in-situ treatment |
| CN111302587A (en) * | 2020-02-21 | 2020-06-19 | 宁夏水投环保发展有限公司 | Process for treating dredging bottom mud and tail water of lakes, lakes and fish ponds |
| CN111320345A (en) * | 2020-02-25 | 2020-06-23 | 中建五局第三建设有限公司 | Pipe bag treatment process and system for black and odorous sludge in urban river |
| CN111777296A (en) * | 2020-07-17 | 2020-10-16 | 广州利源工程咨询有限公司 | River channel construction section ground mud monitoring and processing method and device |
| CN114319489A (en) * | 2021-12-20 | 2022-04-12 | 浙江富江水利水电工程有限公司 | Ecological treatment system for sludge in small and medium river channels in cities and towns |
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| CN106638456A (en) * | 2016-12-30 | 2017-05-10 | 浙江广川工程咨询有限公司 | Integrated ecological desilting design method for large and medium-sized reservoirs |
| CN106759602A (en) * | 2016-12-26 | 2017-05-31 | 江苏龙腾工程设计股份有限公司 | River course green ecological desilting processing system and its processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255840A (en) * | 2019-07-19 | 2019-09-20 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | A kind of novel water course/lake sludge curing system and sludge curing method |
| CN111056718A (en) * | 2019-12-09 | 2020-04-24 | 上海大学 | Intelligent dosing system for sludge in-situ treatment |
| CN111056718B (en) * | 2019-12-09 | 2022-08-02 | 上海大学 | Intelligent dosing system for sludge in-situ treatment |
| CN111302587A (en) * | 2020-02-21 | 2020-06-19 | 宁夏水投环保发展有限公司 | Process for treating dredging bottom mud and tail water of lakes, lakes and fish ponds |
| CN111320345A (en) * | 2020-02-25 | 2020-06-23 | 中建五局第三建设有限公司 | Pipe bag treatment process and system for black and odorous sludge in urban river |
| CN111777296A (en) * | 2020-07-17 | 2020-10-16 | 广州利源工程咨询有限公司 | River channel construction section ground mud monitoring and processing method and device |
| CN114319489A (en) * | 2021-12-20 | 2022-04-12 | 浙江富江水利水电工程有限公司 | Ecological treatment system for sludge in small and medium river channels in cities and towns |
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Application publication date: 20180417 |