CN102503066A - System and method for supercritical water oxidation treatment and resource utilization of organic sludge - Google Patents
System and method for supercritical water oxidation treatment and resource utilization of organic sludge Download PDFInfo
- Publication number
- CN102503066A CN102503066A CN2011104388370A CN201110438837A CN102503066A CN 102503066 A CN102503066 A CN 102503066A CN 2011104388370 A CN2011104388370 A CN 2011104388370A CN 201110438837 A CN201110438837 A CN 201110438837A CN 102503066 A CN102503066 A CN 102503066A
- Authority
- CN
- China
- Prior art keywords
- mud
- supercritical
- supercritical water
- oxidization reactor
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 45
- 238000009284 supercritical water oxidation Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 131
- 239000007800 oxidant agent Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 230000001590 oxidative effect Effects 0.000 claims abstract description 18
- 238000010248 power generation Methods 0.000 claims abstract description 18
- 238000007254 oxidation reaction Methods 0.000 claims description 67
- 238000004064 recycling Methods 0.000 claims description 24
- 238000005057 refrigeration Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 16
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 231100000611 venom Toxicity 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a supercritical water oxidation treatment and resource utilization system and method for organic sludge, wherein the supercritical water oxidation treatment and resource utilization system for organic sludge comprises a grid, a sludge stirring crusher, a sludge pressure pump, a preheater, an oxidant pressure pump, a supercritical water oxidation reactor, a high-pressure hydrocyclone and a power generation system, the grid, the sludge stirring crusher, the sludge pressure pump and the preheater are sequentially connected through a conveying pipeline, an output port of the preheater is connected to an input port of the supercritical water oxidation reactor, the oxidant pressure pump is connected to an oxidant of the supercritical water oxidation reactor, a heater is arranged in the supercritical water oxidation reactor, a supercritical water output port of the supercritical water oxidation reactor and a high-pressure hydrocyclone are arranged in the supercritical water oxidation reactor, and a supercritical water output port of the high-pressure hydrocyclone is.
Description
Technical field
The present invention relates to a kind of supercritical water oxidation processing of organic sludge and the system and method for recycling; Specifically handle organic sludge with supercritical water oxidation method; Harmful organic composition wherein is converted into the materials such as inorganics of water, carbonic acid gas and few stable; Utilize waste heat to generate electricity simultaneously, when reaching mud " decrement, stable, harmless " management goal, realize the comprehensive utilization of energy.
Background technology
Along with the raising day by day of quickening of urbanization process and environmental protection standard, wastewater treatment rate and WWT degree also are improved day by day and deepen, and the output of mud also improves therefore and greatly.Organic sludge is the product after waste water (comprising sanitary wastewater and trade effluent) is handled; Contain a large amount of hazardous and noxious substances; Like parasitic ovum, pathogenic micro-organism, bacterium, synthesis of organic substance and heavy metal etc., how it is carried out effective treatment and disposal and become a global society and environmental problem.
See that from world wide sludge treatment method of disposal commonly used at present mainly contains burning, landfill, compost and throwing sea etc.The incineration disposal of mud mainly contains two kinds of methods: a kind of is that dewatered sludge directly burns, and this method disposing technique link is few, and flow process is simple, but fuel consumption is big, and working cost and trucking costs are all higher; Another kind is that dewatered sludge is perhaps burnt combustion after the half-driedization processing again through mummification, though can make burning simple relatively, trucking costs reduces, and supporting mummification equipment need be arranged, and causes the mummification expense higher.The burning of mud once was popular, and needed flue gas and burned ash its application of drawbacks limit such as having handled again but one-time investment is big, working cost is high, when temperature of combustion is lower than 850 ℃, can produce highly toxic substance such as Dioxins owing to organism.When adopting landfill method; The various hazardous and noxious substances that contain in the mud are through etch and the seepage meeting polluted underground water and the atmosphere of rainwater; In addition, the big area place of suitable mud landfill seems more and more limited because of a large amount of outputs of mud, and transportation cost is also higher at a distance.Mud can be realized agricultural use after composting process is handled, but contained pathogenic agent and venomous injurant directly applies to the secondary pollution that agricultural can cause soil and water body in the mud, under the immature situation of correlation technique, also has its limitation.Mud is thrown the sea can Marine Pollution, can threaten to the marine ecosystem human foods chain of unifying, and international convention is prohibited.
For this reason, to the characteristic of organic sludge, active development can have important practical significance to the technology that mud is effectively administered.Follow the Scientific Outlook on Development, combining the treatment and disposal of mud with recycling to become the best final outlet of mud
(Supercritical Water Oxidation SCWO) is a kind of emerging organic waste and wastewater processing technology to the supercritical water oxidation technology.SCWO be meant organism under condition of supercritical water with the process of oxygenant generation oxidizing reaction.Because supercritical water is the single_phase system that the gas-liquid two-phase interface disappears; Can dissolve each other with arbitrary proportion with organism, oxygen, air etc.; Make the heterogeneous reaction of original generation be converted into homogeneous reaction; React no longer because of alternate transfer is restricted, thereby accelerated speed of reaction, the reaction times generally only needs several seconds to several minutes; SCWO can thoroughly be converted into CO with the organism of difficult degradation
2And H
2O is N with nitrogen transformation
2Or N
2Innoxious substances such as O with element depth oxidations such as the phosphorus in the water body, chlorine, sulphur, deposit from supercritical water with the form of inorganic salt, realize the innoxious of toxic organic pollutants, and the COD clearance can reach more than 99%.
Supercritical water oxidation technology wide accommodation, speed of reaction is fast, and oxygenolysis is complete, non-secondary pollution.Because the COD or the TOC content of organic sludge are higher; Adopt the supercritical water oxidation technology that it is handled; Can not only realize the advanced treatment of mud, and the effluent after handling has higher pressure and temperature, can make full use of the high-grade electric energy of its energy generation earlier; Low-grade steam after will generating electricity again can be realized the recycling of mud as thermal source.
Summary of the invention
The system and method that the purpose of this invention is to provide a kind of organic sludge supercritical water oxidation processing and recycling.
A technical scheme that realizes the foregoing invention purpose is:
The system of a kind of organic sludge supercritical water oxidation processing and recycling; Comprise that grid, mud stir crusher, mud pressure pump, preheater, oxidant stress pump, overcritical water oxidization reactor, high pressure wet cyclone and power generation system; Grid, mud stir crusher, the mud pressure pump is connected through transport pipe with preheater successively; The delivery port of preheater is connected to the overcritical water oxidization reactor input aperture; Said oxidant stress pump is connected to the oxygenant input aperture of overcritical water oxidization reactor; Well heater is housed in the overcritical water oxidization reactor, overcritical water oxidization reactor supercritical water delivery port and high pressure wet cyclone, high pressure wet cyclone supercritical water delivery port is connected with the power generation system input terminus.
Said oxidant stress pump is high pressure plunger pump (for liquid oxidizer) or compressor (for gaseous oxidizer).Described supercritical reaction device both can be a tank reactor, also can be tubular reactor.
Said power generation system can be made up of supercritical generating unit, electrical network, heating plant and refrigeration plant, the electric energy input electrical network that the supercritical generating unit produces, and the back pressure steam after the generating exports heat supply and refrigeration plant to.Further improvement as this technical scheme; Between said high pressure wet cyclone supercritical water delivery port and supercritical generating unit input aperture, be provided with well heater; Well heater can continue the supercritical water that the high pressure wet cyclone is discharged to be heated to more than 580 ℃, keeps pressure at 25 ~ 35MPa, is used for supercritical generating; Generating efficiency is further brought up to about 44%, and it is significant that save energy is reduced pollution.
Said power generation system can also be made up of steam turbine, steam-electric power unit, water supply pump, electrical network, heating plant and refrigeration plant; The outlet of steam turbine high-temperature steam is connected with steam-electric power unit input terminus, and the output of steam-electric power unit is connected with electrical network successively; Steam turbine time high-temperature steam outlet is connected respectively with heating plant, refrigeration plant; Water supply pump is connected with high pressure wet cyclone supercritical water delivery port through pipeline, is used for pumping into cold water at supercritical water, and the supercritical water that high pressure wet cyclone supercritical water delivery port is discharged becomes the steam input steam turbine that pressure is 2 ~ 14MPa; Steam turbine output high-temperature steam promotes the steam turbine generating, back pressure steam heating or refrigeration after the steam turbine generating.Through steam turbine realize different quality energy cascade utilization (the higher higher-grade steam of temperature be used for the generating; The low-grade steam that temperature is lower is used for heat supply or refrigeration); Not only can improve utilization efficiency of energy; Also carbide and discharge of harmful gases be can reduce, good economic benefit and social benefit obtained.
The technical scheme that realizes another goal of the invention of the present invention is:
The method of improvement of organic sludge supercritical water oxidation and recycling comprises following steps:
(1) utilizes grid that pending organic sludge is carried out coarse filtration, remove wherein bulk and strip foreign material;
(2) utilize mud to stir the organic sludge of crusher after to coarse filtration and stir fully, it is broken to make wherein solid particulate carry out a step;
(3) close the outlet valve of overcritical water oxidization reactor, adopt the mud pressure pump, simultaneously after the preheater heating, in the input overcritical water oxidization reactor pending organic sludge pressurization;
(4) treat to charge in the overcritical water oxidization reactor a certain amount of pending mud after, close the mud pressure pump, stop to inject mud, start the built-in well heater of overcritical water oxidization reactor simultaneously, the pending mud static state in it is heated to 400 ℃;
(5) start the mud pressure pump, the flow of control mud, the pressure in overcritical water oxidization reactor reaches 25 ~ 50 MPa, when temperature reaches 400 ~ 700 ℃, starts the oxidant stress pump, and oxygenant is input in the overcritical water oxidization reactor;
(6) according to pressure in the overcritical water oxidization reactor and temperature; Adjusting pumps into the pending mud of overcritical water oxidization reactor and the flow of oxygenant, and making pending mud and the oxygenant residence time in overcritical water oxidization reactor is 100 ~ 1000s;
(7) inorganics of reaction generation can be separated out from the supercritical water that overcritical water oxidization reactor comes out, and adopts the high pressure wet cyclone to discharge with the inorganic salt separation and from the bottom;
The supercritical water of (8) discharging from the high pressure wet cyclone contains a large amount of heat energy input power generation systems and generates electricity, and the electric energy of generation supplies the user to use or is connected to the grid, and the back pressure steam after the generating is used for heat supply and refrigeration.
Oxygenant in the above-mentioned steps (4) can be liquid oxygen, air, KClO
3, NaClO, KMnO
4Solution or H
2O
2
Power generation system described in the above-mentioned steps (8) is the supercritical generating unit.
As further improvement of the present invention, in above-mentioned steps (8), " its input power generation system being generated electricity " further comprises following improvement step:
The supercritical water of (8.1) the high pressure wet cyclone being discharged continues through further adherence pressure of well heater and temperature its temperature to be reached more than 580 ℃, and pressure is used for supercritical generating at 30 ~ 40MPa, improves generating efficiency.
" its input power generation system is generated electricity " in the above-mentioned steps (8) and specifically may further comprise the steps:
(8.2) in the supercritical water that the high pressure wet cyclone is discharged, pump into cold water, it is become the steam that pressure is 2 ~ 14MPa, to utilize the steam turbine generating.
Beneficial effect of the present invention is, adopts supercritical water oxidation and supercritical generating among the present invention, will contain a large amount of heat energy and pressure ability supercritical water from what supercritical water oxidation produced, is used for supercritical generating after treatment.The supercritical generating unit adopts the supercritical water of high-parameters to generate electricity, and has the high advantage of generating efficiency, can produce high-grade electric energy, the electric energy input electrical network that supercritical generating produces, and the back pressure steam after the generating exports heat supply and refrigeration plant to.The present invention has realized the combination of advanced treatment qualified discharge or the reuse and the recycling of high concentration hard-degraded organic waste water, has important social benefit, environmental benefit and economic benefit.
Description of drawings:
Fig. 1 is the system flow synoptic diagram of improvement of the embodiment of the invention 1 organic sludge supercritical water oxygen and recycling;
Fig. 2 is the system flow synoptic diagram of improvement of the embodiment of the invention 2 organic sludge supercritical water oxygen and recycling;
Fig. 3 is the system flow synoptic diagram of the embodiment of the invention 3 for improvement of organic sludge supercritical water oxygen and recycling.
Among the figure: the 1-grid; 2-mud stirs crusher; 3-mud pressure pump; The 4-preheater; The 5-overcritical water oxidization reactor; The 6-well heater; 7-oxidant stress pump; 8-high pressure wet cyclone; 9-supercritical generating unit; The 10-steam turbine; 11-steam-electric power unit; The 12-well heater; 13-supercritical generating unit; 51-overcritical water oxidization reactor input aperture; 52-oxygenant input aperture; 53-supercritical reaction device delivery port.
The A-organic sludge; The B-oxygenant; The C-inorganic salt; The D-electrical network; The E-heat supply; The F-refrigeration; G-cold water.
Embodiment
Further specify below in conjunction with embodiment.
Embodiment 1
Show like Fig. 1; The supercritical water oxygen of organic sludge is administered and the recycling system, comprises that grid 1, mud stir crusher 2, mud pressure pump 3, preheater 4, overcritical water oxidization reactor 5, oxidant stress pump 7, high pressure wet cyclone 8 and supercritical generating unit 9.Grid 1, mud stir crusher 2, mud pressure pump 3 and preheater 4 and are connected successively through transport pipe; The delivery port of preheater 4 is connected to the input aperture 51 of overcritical water oxidization reactor, and oxidant stress pump 7 is connected to the oxygenant input aperture 52 of overcritical water oxidization reactor 5.Well heater 6 is housed in the overcritical water oxidization reactor.The delivery port 53 of supercritical reaction device connects the inlet of high pressure wet cyclone 8, and the fluid outlet of high pressure wet cyclone 8 connects supercritical generating unit 8, and the delivery port of oxidant stress pump 7 inserts supercritical reaction device 5.
The method of improvement of organic sludge supercritical water oxygen and recycling may further comprise the steps:
(1) utilizes 1 pair of pending mud of grid to carry out coarse filtration, remove wherein bulk and strip foreign material;
(2) organic sludge that utilizes mud to stir after 2 pairs of coarse filtration of crusher stirs fully, and it is broken to make wherein solid particulate carry out a step;
(3) close the outlet valve of overcritical water oxidization reactor 5, adopt 3 pairs of pending organic sludges pressurizations of mud pressure pump, simultaneously after preheater 4 heating, in the input overcritical water oxidization reactor 5;
(4) treat to charge into a certain amount of pending mud in the overcritical water oxidization reactor 5 after, close mud pressure pump 3, stop to inject mud, start the built-in well heater of overcritical water oxidization reactor 6 simultaneously, the pending mud static state in it is heated to 400 ℃;
(5) start mud pressure pump 3, the flow of control mud, the pressure in overcritical water oxidization reactor 5 reaches 25 ~ 40 MPa, when temperature reaches 300 ~ 500 ℃, starts oxidant stress pump 7, and oxygenant is input in the overcritical water oxidization reactor 5;
(6) according to pressure and temperature in the overcritical water oxidization reactor 5; Adjusting pumps into the pending mud of overcritical water oxidization reactor 5 and the flow of oxygenant; Making pending mud and the oxygenant residence time in overcritical water oxidization reactor 5 is 100 ~ 1000s, warps such as wherein contained organism, heavy metal ion is fully reacted be generated as inorganic salt, water and CO
2Deng;
(7) because the solubleness of inorganic salt in supercritical water is atomic, the inorganics that reaction generates can be separated out from the supercritical water that overcritical water oxidization reactor 5 comes out, and therefore adopts high pressure wet cyclone 8 to discharge with the inorganic salt separation and from the bottom;
(8) this reaction is thermopositive reaction; The supercritical water of discharging from high pressure wet cyclone 8 contains a large amount of heat energy; Its input supercritical generating unit 9 is generated electricity; The electric energy that produces supplies the user to use or the D that is connected to the grid, and the back pressure steam after the generating is used for heat supply E and refrigeration F, realizes the cascade utilization of energy.
As shown in Figure 2, the difference of present embodiment and embodiment 1 is that power generation system is made up of steam turbine 10, steam-electric power unit 11, water supply pump 12, electrical network D, heating plant E and refrigeration plant F; The outlet of steam turbine 10 high-temperature steams is connected with steam-electric power unit 11 input terminuss, and 11 outputs of steam-electric power unit are connected with electrical network D successively; 10 high-temperature steam outlets of steam turbine are connected respectively with heating plant E, refrigeration plant F; Water supply pump 12 is connected with high pressure wet cyclone 8 supercritical water delivery ports through pipeline.The supercritical water that high pressure wet cyclone 8 is discharged is not to be used for supercritical generating, but makes its decrease temperature and pressure become steam through adding cold water G, utilizes the steam turbine generating then, and the back pressure steam after the generating is used for heat supply or refrigeration.
The method of improvement of organic sludge supercritical water oxygen and recycling may further comprise the steps:
(1) utilizes 1 pair of pending mud of grid to carry out coarse filtration, remove wherein bulk and strip foreign material;
(2) organic sludge that utilizes mud to stir after 2 pairs of coarse filtration of crusher stirs fully, and it is broken to make wherein solid particulate carry out a step;
(3) close the valve of overcritical water oxidization reactor delivery port 53, adopt 3 pairs of pending organic sludges pressurizations of mud pressure pump, simultaneously after preheater 4 heating, in the input overcritical water oxidization reactor 5;
(4) treat to charge into a certain amount of pending mud in the overcritical water oxidization reactor 5 after, close mud pressure pump 3, stop to inject mud, start the built-in well heater of overcritical water oxidization reactor 6 simultaneously, the pending mud static state in it is heated to 400 ℃;
(5) start mud pressure pump 3, the flow of control mud, the pressure in overcritical water oxidization reactor 5 reaches 25 ~ 40 MPa, when temperature reaches 300 ~ 500 ℃, starts oxidant stress pump 7, and oxygenant is input in the overcritical water oxidization reactor 5;
(6) according to pressure and temperature in the overcritical water oxidization reactor 5; Adjusting pumps into the pending mud of overcritical water oxidization reactor 5 and the flow of oxygenant; Making pending mud and the oxygenant residence time in overcritical water oxidization reactor 5 is 100 ~ 1000s, warps such as wherein contained organism, heavy metal ion is fully reacted be generated as inorganic salt, water and CO
2Deng;
(7) because the solubleness of inorganic salt in supercritical water is atomic, the inorganics that reaction generates can be separated out from the supercritical water that overcritical water oxidization reactor 5 comes out, and therefore adopts high pressure wet cyclone 8 to discharge with the inorganic salt separation and from the bottom;
(8) this reaction is thermopositive reaction, and the supercritical water of discharging from high pressure wet cyclone 8 has very high temperature and pressure, through in it, pumping into cold water; Make its pressure and temperature reach the required pressure and temperature of steam turbine; Utilize steam turbine 10 to expand and do work, drive power unit 11 generatings, the electric energy of generation supplies the user to use or the D that is connected to the grid; Back pressure steam after the generating is used for heat supply E and refrigeration F, realizes the cascade utilization of energy.
Embodiment 3
As shown in Figure 3, present embodiment and embodiment 1 difference are, are provided with well heater 12 at high pressure wet cyclone 8 supercritical water delivery ports and supercritical generating unit input aperture; The supercritical water that high pressure wet cyclone 8 is discharged is not directly to carry out supercritical generating, but continues heating through well heater 12, and its temperature is reached more than 580 ℃; Pressure is at 30 ~ 40MPa; Be used for supercritical generating then, thereby generating efficiency is further improved, the back pressure steam after the generating is used for heat supply or refrigeration.
The method of improvement of organic sludge supercritical water oxygen and recycling may further comprise the steps:
(1) utilizes 1 pair of pending mud of grid to carry out coarse filtration, remove wherein bulk and strip foreign material;
(2) organic sludge that utilizes mud to stir after 2 pairs of coarse filtration of crusher stirs fully, and it is broken to make wherein solid particulate carry out a step;
(3) close the outlet valve of overcritical water oxidization reactor 5, adopt 3 pairs of pending organic sludges pressurizations of mud pressure pump, simultaneously after preheater 4 heating, in the input overcritical water oxidization reactor 5;
(4) treat to charge into a certain amount of pending mud in the overcritical water oxidization reactor 5 after, close mud pressure pump 3, stop to inject mud, start the built-in well heater of overcritical water oxidization reactor 6 simultaneously, the pending mud static state in it is heated to 400 ℃;
(5) start mud pressure pump 3, the flow of control mud, the pressure in overcritical water oxidization reactor 5 reaches 25 ~ 40 MPa, when temperature reaches 300 ~ 500 ℃, starts oxidant stress pump 7, and oxygenant is input in the overcritical water oxidization reactor 5;
(6) according to pressure and temperature in the overcritical water oxidization reactor 5; Adjusting pumps into the pending mud of overcritical water oxidization reactor 5 and the flow of oxygenant; Making pending mud and the oxygenant residence time in overcritical water oxidization reactor 5 is 100 ~ 1000s, warps such as wherein contained organism, heavy metal ion is fully reacted be generated as inorganic salt, water and CO
2Deng;
(7) because the solubleness of inorganic salt in supercritical water is atomic, the inorganics that reaction generates can be separated out from the supercritical water that overcritical water oxidization reactor 5 comes out, and therefore adopts high pressure wet cyclone 8 to discharge with the inorganic salt separation and from the bottom;
(8) this reaction is thermopositive reaction, and the supercritical water of discharging from high pressure wet cyclone 8 contains a large amount of heat energy, and it is continued heating through well heater 12; Its temperature is reached more than 580 ℃; Pressure gets into ultra supercritical power unit 13 then at 30 ~ 40MPa, and the electric energy of generation supplies the user to use or the D that is connected to the grid; Back pressure steam after the generating is used for heat supply E and refrigeration F, realizes the cascade utilization of energy.
Claims (9)
1. an organic sludge supercritical water oxidation is handled and the system of recycling; It is characterized in that; This system comprises that grid, mud stir crusher, mud pressure pump, preheater, oxidant stress pump, overcritical water oxidization reactor, high pressure wet cyclone and power generation system; Grid, mud stir crusher, the mud pressure pump is connected through transport pipe with preheater successively; The delivery port of preheater is connected to the overcritical water oxidization reactor input aperture, and said oxidant stress pump is connected to the oxygenant input aperture of overcritical water oxidization reactor, and well heater is housed in the overcritical water oxidization reactor; Overcritical water oxidization reactor supercritical water delivery port and high pressure wet cyclone, high pressure wet cyclone supercritical water delivery port is connected with the power generation system input terminus.
2. the system of organic sludge supercritical water oxidation processing according to claim 1 and recycling is characterized in that said oxidant stress pump is high pressure plunger pump or compressor.
3. the system of organic sludge supercritical water oxidation processing according to claim 1 and recycling; It is characterized in that; Said power generation system is made up of supercritical generating unit, electrical network, heating plant and refrigeration plant; The electric energy input electrical network that the supercritical generating unit produces, the back pressure steam after the generating exports heat supply and refrigeration plant to.
4. the system of organic sludge supercritical water oxidation processing according to claim 1 and recycling is characterized in that said power generation system is made up of steam turbine, steam-electric power unit, water supply pump, electrical network, heating plant and refrigeration plant; The outlet of steam turbine high-temperature steam is connected with steam-electric power unit input terminus, and the output of steam-electric power unit is connected with electrical network successively; Steam turbine time high-temperature steam outlet is connected respectively with heating plant, refrigeration plant.
5. the system of organic sludge supercritical water oxidation processing according to claim 3 and recycling is characterized in that, is provided with well heater at said high pressure wet cyclone supercritical water delivery port and supercritical generating unit input aperture.
6. the organic sludge supercritical water oxidation is administered and the method for recycling, it is characterized in that the method includes the steps of:
(1) utilizes grid that pending organic sludge is carried out coarse filtration, remove wherein bulk and strip foreign material;
(2) utilize mud to stir the organic sludge of crusher after to coarse filtration and stir fully, it is broken to make wherein solid particulate carry out a step;
(3) close the outlet valve of overcritical water oxidization reactor, adopt the mud pressure pump, simultaneously after the preheater heating, in the input overcritical water oxidization reactor pending organic sludge pressurization;
(4) treat to charge in the overcritical water oxidization reactor a certain amount of pending mud after, close the mud pressure pump, stop to inject mud, start the built-in well heater of overcritical water oxidization reactor simultaneously, the pending mud static state in it is heated to 400 ℃;
(5) start the mud pressure pump, the flow of control mud, the pressure in overcritical water oxidization reactor reaches 25 ~ 50 MPa, when temperature reaches 400 ~ 700 ℃, starts the oxidant stress pump, and oxygenant is input in the overcritical water oxidization reactor;
(6) according to pressure in the overcritical water oxidization reactor and temperature; Adjusting pumps into the pending mud of overcritical water oxidization reactor and the flow of oxygenant, and making pending mud and the oxygenant residence time in overcritical water oxidization reactor is 100 ~ 1000s;
(7) inorganics of reaction generation can be separated out from the supercritical water that overcritical water oxidization reactor comes out, and adopts the high pressure wet cyclone to discharge with the inorganic salt separation and from the bottom;
The supercritical water of (8) discharging from the high pressure wet cyclone contains a large amount of heat energy input power generation systems and generates electricity, and the electric energy of generation supplies the user to use or is connected to the grid, and the back pressure steam after the generating is used for heat supply and refrigeration.
7. the method for improvement of organic sludge supercritical water oxidation and recycling is characterized in that described power generation system is the supercritical generating unit.
8. the method for improvement of organic sludge supercritical water oxidation and recycling is characterized in that, " its input power generation system being generated electricity " in the above-mentioned steps (8) further comprises following improvement step:
The supercritical water of (8.1) the high pressure wet cyclone being discharged continues through further adherence pressure of well heater and temperature its temperature to be reached more than 580 ℃, and pressure is used for the ultra supercritical generating at 30 ~ 40MPa.
9. the method for improvement of organic sludge supercritical water oxidation and recycling is characterized in that, " its input power generation system being generated electricity " in the above-mentioned steps (8) specifically may further comprise the steps:
(8.2) in the supercritical water that the high pressure wet cyclone is discharged, pump into cold water, it is become the steam that pressure is 2 ~ 14MPa, be used for the steam turbine generating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438837.0A CN102503066B (en) | 2011-12-23 | 2011-12-23 | System and method for supercritical water oxidation treatment and resource utilization of organic sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438837.0A CN102503066B (en) | 2011-12-23 | 2011-12-23 | System and method for supercritical water oxidation treatment and resource utilization of organic sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102503066A true CN102503066A (en) | 2012-06-20 |
| CN102503066B CN102503066B (en) | 2013-10-16 |
Family
ID=46215217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110438837.0A Expired - Fee Related CN102503066B (en) | 2011-12-23 | 2011-12-23 | System and method for supercritical water oxidation treatment and resource utilization of organic sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102503066B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626364A (en) * | 2013-11-06 | 2014-03-12 | 西安交通大学 | Supercritical water oxidation treatment and generation system of municipal sludge having high-solid content |
| CN103848528A (en) * | 2012-12-04 | 2014-06-11 | 株式会社理光 | Fluid purification system |
| CN104326637A (en) * | 2014-10-21 | 2015-02-04 | 新奥科技发展有限公司 | Sludge treatment method |
| CN104829079A (en) * | 2015-03-23 | 2015-08-12 | 王冰 | A novel supercritical water oxidation sludge treatment system and a method |
| CN105174675A (en) * | 2015-08-28 | 2015-12-23 | 中国海洋石油总公司 | Treatment method for coal-gasification wastewater biochemical sludge |
| CN105627814A (en) * | 2016-03-10 | 2016-06-01 | 西安交通大学 | Intermediate medium heat exchanger used for supercritical water oxidation system |
| CN105731744A (en) * | 2016-03-22 | 2016-07-06 | 新奥科技发展有限公司 | Sludge treatment method and sludge treatment system |
| CN105859088A (en) * | 2016-06-01 | 2016-08-17 | 新奥科技发展有限公司 | Supercritical sludge treatment system and treatment method |
| CN105859087A (en) * | 2016-06-01 | 2016-08-17 | 新奥科技发展有限公司 | Supercritical sludge treatment system and treatment method |
| CN106746485A (en) * | 2016-12-21 | 2017-05-31 | 北京科技大学 | A kind of SCWO technologies steel rolling oily sludge decrement method for innocent treatment |
| CN107935287A (en) * | 2017-12-08 | 2018-04-20 | 陕西科技大学 | A kind of supercritical water oxidation energy-recuperation system |
| CN108187580A (en) * | 2018-01-10 | 2018-06-22 | 南京新奥环保技术有限公司 | A kind of emulsifier and its application in grease endangers liquid waste processing |
| CN108251093A (en) * | 2018-01-31 | 2018-07-06 | 南京工业大学 | Preparation system and method of supercritical fluid for thermal recovery of heavy oil |
| CN109867421A (en) * | 2019-04-08 | 2019-06-11 | 陕西科技大学 | A kind of chromium-bearing sludge processing method and system based on supercritical water oxidation |
| CN110486107A (en) * | 2019-07-31 | 2019-11-22 | 碧流天能(北京)科技股份有限公司 | The supercritical carbon dioxide electricity generation system and method for joint supercritical Water Oxidation Technology |
| CN111171889A (en) * | 2019-12-05 | 2020-05-19 | 南京工业大学 | High-concentration organic wastewater and organic solid waste treatment process and system |
| CN114014511A (en) * | 2021-12-01 | 2022-02-08 | 成都九翼环保科技有限公司 | Method and device for treating and recycling garbage by adopting supercritical water |
| CN114751504A (en) * | 2022-03-29 | 2022-07-15 | 石家庄新奥环保科技有限公司 | Supercritical water oxidation heat recovery system |
| CN114811612A (en) * | 2022-04-29 | 2022-07-29 | 西安交通大学 | Supercritical hydrothermal combustion treatment system for organic waste liquid and safety guarantee method |
| CN114838369A (en) * | 2022-04-29 | 2022-08-02 | 西安交通大学 | Inorganic salt online desorption system and method based on supercritical hydrothermal combustion treatment |
| CN115771985A (en) * | 2022-12-16 | 2023-03-10 | 湖南汉华京电清洁能源科技有限公司 | Dirty oil sludge resource utilization system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544419A (en) * | 2008-03-27 | 2009-09-30 | 楼龙春 | Method and device for oxidizing and treating sewage or sludge containing organic substances by supercritical water |
-
2011
- 2011-12-23 CN CN201110438837.0A patent/CN102503066B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544419A (en) * | 2008-03-27 | 2009-09-30 | 楼龙春 | Method and device for oxidizing and treating sewage or sludge containing organic substances by supercritical water |
Non-Patent Citations (1)
| Title |
|---|
| 崔宝臣: "超临界水氧化处理含油污泥研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑（月刊）》, 15 November 2011 (2011-11-15), pages 29 - 31 * |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848528A (en) * | 2012-12-04 | 2014-06-11 | 株式会社理光 | Fluid purification system |
| CN103848528B (en) * | 2012-12-04 | 2015-12-09 | 株式会社理光 | Fliod fluid decontamination system |
| CN103626364A (en) * | 2013-11-06 | 2014-03-12 | 西安交通大学 | Supercritical water oxidation treatment and generation system of municipal sludge having high-solid content |
| CN104326637A (en) * | 2014-10-21 | 2015-02-04 | 新奥科技发展有限公司 | Sludge treatment method |
| CN104326637B (en) * | 2014-10-21 | 2016-08-17 | 新奥科技发展有限公司 | A kind of method for sludge treatment |
| CN104829079A (en) * | 2015-03-23 | 2015-08-12 | 王冰 | A novel supercritical water oxidation sludge treatment system and a method |
| CN105174675A (en) * | 2015-08-28 | 2015-12-23 | 中国海洋石油总公司 | Treatment method for coal-gasification wastewater biochemical sludge |
| CN105627814A (en) * | 2016-03-10 | 2016-06-01 | 西安交通大学 | Intermediate medium heat exchanger used for supercritical water oxidation system |
| CN105731744A (en) * | 2016-03-22 | 2016-07-06 | 新奥科技发展有限公司 | Sludge treatment method and sludge treatment system |
| CN105859088A (en) * | 2016-06-01 | 2016-08-17 | 新奥科技发展有限公司 | Supercritical sludge treatment system and treatment method |
| CN105859087A (en) * | 2016-06-01 | 2016-08-17 | 新奥科技发展有限公司 | Supercritical sludge treatment system and treatment method |
| CN106746485A (en) * | 2016-12-21 | 2017-05-31 | 北京科技大学 | A kind of SCWO technologies steel rolling oily sludge decrement method for innocent treatment |
| CN107935287A (en) * | 2017-12-08 | 2018-04-20 | 陕西科技大学 | A kind of supercritical water oxidation energy-recuperation system |
| CN108187580A (en) * | 2018-01-10 | 2018-06-22 | 南京新奥环保技术有限公司 | A kind of emulsifier and its application in grease endangers liquid waste processing |
| CN108251093A (en) * | 2018-01-31 | 2018-07-06 | 南京工业大学 | Preparation system and method of supercritical fluid for thermal recovery of heavy oil |
| CN109867421A (en) * | 2019-04-08 | 2019-06-11 | 陕西科技大学 | A kind of chromium-bearing sludge processing method and system based on supercritical water oxidation |
| CN110486107A (en) * | 2019-07-31 | 2019-11-22 | 碧流天能(北京)科技股份有限公司 | The supercritical carbon dioxide electricity generation system and method for joint supercritical Water Oxidation Technology |
| CN111171889A (en) * | 2019-12-05 | 2020-05-19 | 南京工业大学 | High-concentration organic wastewater and organic solid waste treatment process and system |
| CN114014511A (en) * | 2021-12-01 | 2022-02-08 | 成都九翼环保科技有限公司 | Method and device for treating and recycling garbage by adopting supercritical water |
| CN114751504A (en) * | 2022-03-29 | 2022-07-15 | 石家庄新奥环保科技有限公司 | Supercritical water oxidation heat recovery system |
| CN114811612A (en) * | 2022-04-29 | 2022-07-29 | 西安交通大学 | Supercritical hydrothermal combustion treatment system for organic waste liquid and safety guarantee method |
| CN114838369A (en) * | 2022-04-29 | 2022-08-02 | 西安交通大学 | Inorganic salt online desorption system and method based on supercritical hydrothermal combustion treatment |
| CN114811612B (en) * | 2022-04-29 | 2023-02-28 | 西安交通大学 | Supercritical hydrothermal combustion treatment system for organic waste liquid and safety guarantee method |
| CN115771985A (en) * | 2022-12-16 | 2023-03-10 | 湖南汉华京电清洁能源科技有限公司 | Dirty oil sludge resource utilization system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102503066B (en) | 2013-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102503066B (en) | System and method for supercritical water oxidation treatment and resource utilization of organic sludge | |
| AU4797993A (en) | Process for the oxidation of materials in water at supercritical temperatures utilizing reaction rate enhancers | |
| CN104154546B (en) | A kind of recycling sludge utilizes system and method | |
| KR101475137B1 (en) | Ecogreen method for pretreatment, separation, and retreatment and reusing of separated material | |
| US11724952B2 (en) | Method and system for hydrothermal carbonization and wet oxidation of sludge | |
| Rulkens | Sustainable sludge management-what are the challenges for the future? | |
| RU2699118C2 (en) | Method for purification of concentrated organic waste water and device for implementation thereof | |
| CN104250060A (en) | Biochemical sludge processing method | |
| US8673228B2 (en) | System for reducing environmental pollutants | |
| KR101239832B1 (en) | High efficiency Equipment and Method for Treating Sludge | |
| JP7261802B2 (en) | Sludge oxidation and subsequent hydrothermal carbonization | |
| CN106221811A (en) | The zero-discharge treatment system of supercritical water gasification method associating Biochemical method high-concentration hardly-degradable organic hazardous garbage and method | |
| CN112441701B (en) | Shale gas flowback fluid efficient treatment, reuse and zero emission method and system | |
| CN205999343U (en) | The zero-discharge treatment system of supercritical water gasification method joint Biochemical method high-concentration hardly-degradable organic hazardous garbage | |
| EP3728526B1 (en) | Hydrothermal carbonization of sludge including recycling of a wet-oxidized fraction | |
| Puna et al. | Thermal conversion technologies for solid wastes: A new way to produce sustainable energy | |
| CN103242929A (en) | Low calorific value blind coal prepared from sludge of domestic sewage treatment plant, and production technology and catalyst thereof | |
| WO2014086278A1 (en) | Heat recycling method and system for energy in eutrophicated water biomass | |
| CN105859090A (en) | Civil sludge comprehensive treatment process | |
| CN101700947B (en) | Method for treatment of citric acid cleaning wastewater from power plant boiler | |
| JPH09276900A (en) | Supercritical water oxidizing method of organic sludge and organic sludge supply apparatus used therein | |
| CN210595415U (en) | Wastewater and sludge treatment system using coal and organic matters as raw materials | |
| CN103086457A (en) | Method for treating acid pickling citric acid wastewater of power plant boiler by using fly ash | |
| CN109020131A (en) | A kind of waste plastic and municipal sludge co-oxidation processing unit and method | |
| CN205133211U (en) | System for utilize ferrate to restore water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20211223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |