CN209669009U - A kind of incineration plant landfill leachate anaerobic pretreatment device - Google Patents
A kind of incineration plant landfill leachate anaerobic pretreatment device Download PDFInfo
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- CN209669009U CN209669009U CN201822276992.7U CN201822276992U CN209669009U CN 209669009 U CN209669009 U CN 209669009U CN 201822276992 U CN201822276992 U CN 201822276992U CN 209669009 U CN209669009 U CN 209669009U
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Abstract
Utility model discloses a kind of incineration plant landfill leachate anaerobic pretreatment device, it is characterized in that, including water-vapor mixed heat exchanger, water-vapor mixed heat exchanger passes through anaerobic reactor connection more than anaerobism circulating pump, the gas outlet of anaerobic reactor is connected to desulphurization system, and desulphurization system is separately connected incinerator, emergency torch by biogas container；Soda acid grug feeding jar one, soda acid grug feeding jar two are respectively connected to anaerobic effluent mouth pipeline, guanite extraction element；Industrial waterpipe is equally connected to anaerobic effluent mouth pipeline；Phosphate radical storage tank, magnesium salts storage tank, anaerobic reactor reflux water out be connected to guanite extraction element.The utility model specific aim solves temperature control, pipeline scale and biogas treatment in landfill leachate Anaerobic Treatment, improves Anaerobic Treatment effect and Biodegradability of Wastewater, to improve subsequent biochemical processing sewage effect, has good economy and environmental benefit.
Description
Technical field
The utility model relates to a kind of incineration plant landfill leachate anaerobic pretreatment devices.
Background technique
Landfill leachate be rubbish during stacking and landfill due to fermentation, rain drop erosion and surface water, underground water logging
It steeps and is percolated the sewage come out.Landfill leachate property depend on component of refuse, the partial size of rubbish, compaction, scene gas
The factors such as time, hydrologic condition and landfill time.Incineration plant landfill leachate has the following characteristics that (1) incineration plant rubbish is generally
Same day rubbish, the percolate anaerobic fermentation process time is short, and organic concentration is high, and biodegradability is poor compared with landfill percolate；(2) by
Surface water and Rainfall Influence are small, and contained humidity is mainly the moisture that rubbish itself carries moisture and less garbage decomposition generates；
(3) ammonia nitrogen concentration is high；(4) salt content is high；(5) water quality and quantity fluctuates larger etc..Due to landfill leachate be a kind of amount it is big and
The high concentrated organic wastewater of complicated component will cause serious environmental pollution if untreated be directly discharged into environment, threaten human body
Health.
In view of input cost and treatment effect, incineration plant landfill leachate mainly uses bioanalysis to be handled.But
Due to BOD and COD concentration is high, ammonia nitrogen concentration is high in incineration plant landfill leachate, water quality and quantity variation greatly with biodegradability it is poor
The features such as, certain difficulty is often brought to biochemical treatment.Therefore it before incineration plant landfill leachate carries out biochemical treatment, uses
Anaerobic Treatment by hardly degraded organic substance acidification hydrolizations some in percolate at biochemical small molecule compound is easy to, then by anaerobism
Treated waste water with adjust water and carry out that carbon-nitrogen ratio is balanced to carry out biochemical treatment, the place of biochemical processing process again in balancing tank
Reason efficiency will greatly improve.
In anaerobic treatment process mesophilic digestion because mesophile (especially methanogen) type it is more, be easy to cultivate domestication, work
The advantages that property is high is widely applied.But because mesophile living environment to temperature requirement (35 DEG C) more stringent, anaerobic system temperature
Degree and cost of investment control become one of the difficult point of engineer application；Incineration plant landfill leachate ammonia nitrogen concentration is high, and efficient anaerobic is anti-
Answer the effluent recycling technique of device that anaerobic reactor is made to generate rich nitrogen, rich phosphorus supernatant, wherein phosphate anion, ammonium ion with
Magnesium ion can react, and generate solid matter --- the struvite crystallization body for being insoluble in water, i.e. ammonium magnesium phosphate solid.Work as bird
Coprolite, will Severe blockage pipeline, increase sludge or sewage stream after sludge return pipe, centrifugal pump water inlet etc. fouling
Dynamic resistance limits sludge or the discharge of sewage, to increase the energy consumption of water pump, reduces the transfer efficiency of sewage, sludge, also takes up
The dischargeable capacity of reactor, influences the operation and management of processing system.Therefore Novel anaerobic processing good antiscale property engineering technology is compeled
In the eyebrows and eyelashes；In addition, the collecting methane processing produced using Anaerobic Treatment landfill leachate should also carry out safe and reasonable arrangement.
The incineration plant landfill leachate engineer application emphasis of anaeration in normal temperature system processing at present is to match to be arranged to anaerobic reactor
That applies is perfect, including anaerobic system temperature and cost of investment control (35 DEG C), Anaerobic Treatment good antiscale property technology and biogas treatment dress
It sets
Summary of the invention
Problem to be solved in the utility model is: how to realize temperature control in incineration plant landfill leachate Anaerobic Treatment
System, guanite good antiscale property and biogas safe handling.
To solve the above-mentioned problems, the technical solution of the utility model is: providing a kind of incineration plant landfill leachate anaerobism
Pretreatment unit, which is characterized in that including the water-vapor mixed heat exchanger being connected to steam waste heat, water-vapor mixed heat exchanger is by detesting
Oxygen cycle pump is connect with anaerobic reactor, and anaerobic reactor is equipped with anaerobic effluent mouth pipeline, reflux water out and gas outlet, is detested
The gas outlet of oxygen reactor is connected to desulphurization system, and desulphurization system is separately connected incinerator, emergency torch by biogas container；Acid
Alkali grug feeding jar one, soda acid grug feeding jar two are respectively connected to anaerobic effluent mouth pipeline, guanite extraction element；Industrial waterpipe
Equally it is connected to anaerobic effluent mouth pipeline；Phosphate radical storage tank, magnesium salts storage tank, anaerobic reactor reflux water out and guanite
Extraction element connection, the guanite extraction element water outlet of guanite extraction element bottom are connected to anaerobic reactor.Anaerobism is anti-
It answers device in the way of incineration plant steam waste heat progress steam-water mixing (steam injection) heating, and is adjusted and steamed by online thermometer
The dosage of vapour.
Preferably, the guanite extraction element internal upper part is reaction zone, and lower part is settling zone, is equipped with umbrella shape in reaction zone
Baffle is equipped with liquid distribution trough between reaction zone and settling zone；Guanite extraction element water outlet is set to settling zone bottom.
Preferably, the guanite extraction element also with soda acid grug feeding jar one, soda acid grug feeding jar two, phosphate radical storage tank, magnesium
Salt storage tank is connected, and guanite extraction element makes to reach in guanite extraction element equipped with the pH value by controlling reaction solution
The pH on-line measuring device of the optimum condition formed to guanite, links with the pump in two soda acid grug feeding jars.
It is highly preferred that the guanite extraction element is additionally provided with for the automatic operating to entire guanite extraction element
The PLC control system controlled, all water inlets, water outlet, the control valve of two soda acid grug feeding jars, phosphate radical storage tank and
The control valve and discharge gate valve of magnesium salts storage tank, the pH on-line measuring device of guanite extraction element are electric with PLC control system
Control connection.
The guanite extraction element of the utility model passes through the molar ratio of control pH and phosphate radical, magnesium salts and ammonium ion,
It utmostly forms struvite crystallization and is discharged from device lower end discharge port；Supernatant is then back to anaerobic reactor；It is easy to tie
Threeway connection flushing water pump is added at the water outlet of dirt and sludge pipe to clean pipeline.
The utility model specific aim solves temperature control, pipeline scale and biogas treatment in landfill leachate Anaerobic Treatment,
Anaerobic Treatment effect and Biodegradability of Wastewater are improved, to improve subsequent biochemical processing sewage effect, there is good economy
And environmental benefit.
The utility model summarizes according to Engineering Projects combination incineration plant actual conditions and proposes incineration plant landfill leachate anaerobism
Pretreatment unit is effectively treated landfill leachate, improves the processing effect that whole sewage treatment process includes biochemical treatment
Rate reduces the operation cost of sewage treatment, is suitble to large-scale application.
Compared with prior art, the utility model has the beneficial effects that:
1, the design of anaerobism heating and thermal insulation carries out Heat preservation to the medium in anaerobic reactor using incineration plant steam waste heat,
It is combustion-supporting that biogas through desulfurization process is delivered to incineration plant, economic and environment-friendly, can reduce equipment operating cost；
2, Anaerobic Treatment good antiscale property technology, solve calcium, magnesium and carbanion and guanite in anaerobic reactor and
Fouling in pipeline, to improve entire anaerobic reaction treatment effect；
3, since landfill leachate ammonia nitrogen removal effect is good, and giving birth to for sewage is improved by anaerobism mesophilic digestion system
The property changed, to improve the effect of subsequent biochemical processing landfill leachate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of incineration plant landfill leachate anaerobic pretreatment device provided by the utility model.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
Embodiment
As shown in Figure 1, being a kind of incineration plant landfill leachate anaerobic pretreatment device provided by the utility model comprising
Anaerobic Treatment scaling prevention device, anaerobism heating and heat-insulating device and marsh gas treatment device.Anaerobism scaling prevention device is by anaerobic reactor
1, soda acid grug feeding jar 1, soda acid grug feeding jar 23, phosphate radical storage tank 4, magnesium salts storage tank 5 and guanite extraction element 6 form.Detest
Oxygen heating and heat-insulating device using incineration plant steam waste heat in anaerobic reactor 1 medium carry out Heat preservation, device by
Water-vapor mixed heat exchanger 7 and anaerobism circulating pump 8 form.The biogas that anaerobism generates passes through after the pretreatment of desulphurization system 9 after collecting
It is combustion-supporting that biogas container 19 is transported to incinerator 10, while emergency torch 11 is arranged.
The anaerobic effluent mouth pipeline 12 of anaerobic reactor 1 connects soda acid grug feeding jar 1, soda acid grug feeding jar 23, anaerobic reaction
The reflux water exit conduit 13 of device 1 connects guanite extraction element 6, the guanite extraction element water outlet of guanite extraction element 6
Mouth pipeline 14 is connect with anaerobic reactor 1, the outlet conduit connection guanite extraction of soda acid grug feeding jar 1, soda acid grug feeding jar 23
The guanite extraction element water inlet 15 of device 6, phosphate radical storage tank 4, magnesium salts storage tank 5 outlet conduit equally connect guanite and mention
Device water inlet 15 is taken, the bottom of guanite extraction element 6 is provided with guanite extraction element water outlet 14 and discharge gate valve.
The anaerobic effluent mouth pipeline 12 of anaerobic reactor 1 also sets up industry water 16 all the way, the flushing as anaerobic effluent, prevents
The only fouling of outlet conduit.
Guanite extraction element 6 includes reaction zone and settling zone, and settling zone is tapered, and water inlet pipe is equipped in reaction zone,
Pipe divides into umbrella-shaped baffle 17.Liquid distribution trough 18 is set between reaction zone and settling zone.
PH on-line measuring device is installed, pH on-line measuring device is in real-time detection apparatus on guanite extraction element
The pH value of reaction solution, soda acid grug feeding jar 1, soda acid grug feeding jar 23 are according to the pH value of the reaction solution detected into device
Acid or alkali are added, the pH of reaction solution is controlled, to reach the optimum condition of guanite formation.
Guanite extraction element 6 is additionally provided with PLC control system, for the automation fortune to entire guanite extraction element
Row is controlled, the control of 14, two guanite extraction element water inlet 15, guanite extraction element water outlet soda acid grug feeding jars
Valve, the control valve of phosphate radical storage tank 4 and magnesium salts storage tank 5, discharge gate valve, pH on-line measuring device are and PLC control system
It electricly connects.
Water-vapor mixed heat exchanger 7 and anaerobism circulating pump 8 is arranged in anaerobism heating and heat-insulating device, and steam waste heat is changed through steam-water mixing
Anaerobic reactor 1 is passed through after hot device 7 and anaerobism circulating pump 8, heating method is the injection of mixing wastewater with air steam.
Line temperature sensor is also set up in anaerobic reactor 1, for the transmission and warning of temperature, and can be by online
The dosage of thermometer adjusting steam.
Desulfurizer 9 and biogas container 19 is arranged in anaerobic methane collection device, is added using soda ash as absorbent after collecting
The wet oxidation process of desulphurization catalyst carrys out desulfurization.Biogas after desulfurization process can transport it is combustion-supporting to incineration plant 10, can also be through
Emergency torch 11 lights rear qualified discharge.
The working process of the utility model is as follows: by the landfill leachate of conditioning tank homogeneous average, detested by being pumped to
Oxygen reactor 1 is digested high concentrated organic wastewater using anaerobic organism in anaerobic reactor 1, and the overwhelming majority is organic in waste water
Object is degraded, digests.Anaerobic reactor 1 controls temperature of reactor 35 by the dosage that line temperature sensor adjusts steam
℃±2℃；Waste water in anaerobic reactor 1 enters the guanite in 6 reaction zone of guanite extraction element through reflux water out 13
Extraction element water inlet pipe 15 is evenly distributed to entire reaction zone by umbrella-shaped baffle 17, and PLC control system controls soda acid dosing
Tank 1, soda acid grug feeding jar 23 add acid solution and lye to adjust pH, phosphate radical storage tank 4 and magnesium salts storage tank 5 add phosphate radical from
Son and magnesium ion, under the liquid perturbation effect of liquid distribution trough 18, struvite crystallization is initially formed, with the increasing in reaction time
Add, guanite bulky grain starts to be deposited to settling zone, and PLC control system control reaction zone supernatant, which flows back into, after reaction detests
Oxygen reactor 1 is further processed, and controls the discharge gate valve for opening bottom, carries out resource utilization to struvite crystallization.Rubbish
Percolate decomposes through mesophilic digestion and generates biogas, 9 desulfurization of desulphurization system is entered after collecting methane system, through biogas container after
19 to be delivered to incineration plant 10 combustion-supporting.
Anaerobic reactor 1 is additionally provided with cleaning function, sets in the anaerobic effluent mouth pipeline 12 and spoil disposal pipeline of anaerobic reactor 1
Threeway connection flushing water pump is set, and soda acid adding of agent point is set on cleaning pipeline, for removing calcium in pipeline, magnesium and carbonic acid
The fouling of root plasma.
Guanite extraction element 6 is additionally provided with periodic inspection function, and entire guanite can be emptied usually after a period of time and is mentioned
Device is taken, its easy fouling position is checked, acid solution is added by sour grug feeding jar 2 and cleans fouling.
Collecting methane system is additionally provided with emergency torch 11.
Claims (4)
1. a kind of incineration plant landfill leachate anaerobic pretreatment device, which is characterized in that including the carbonated drink being connected to steam waste heat
Mixed heat exchanger (7), water-vapor mixed heat exchanger (7) are connect by anaerobism circulating pump (8) with anaerobic reactor (1), anaerobic reaction
Device (1) is equipped with anaerobic effluent mouth pipeline (12), reflux water out (13) and gas outlet, the gas outlet of anaerobic reactor (1) with
Desulphurization system (9) connection, desulphurization system (9) are separately connected incinerator (10), emergency torch (11) by biogas container (19)；Acid
Alkali grug feeding jar one (2), soda acid grug feeding jar two (3) respectively connect with anaerobic effluent mouth pipeline (12), guanite extraction element (6)
It is logical；Industrial waterpipe (16) is equally connected to anaerobic effluent mouth pipeline (12)；Phosphate radical storage tank (4), magnesium salts storage tank (5), anaerobism
The reflux water out (13) of reactor (1) is connected to guanite extraction element (6), the bird of guanite extraction element (6) bottom
Coprolite extraction element water outlet (14) is connected to anaerobic reactor (1).
2. incineration plant landfill leachate anaerobic pretreatment device as described in claim 1, which is characterized in that the guanite mentions
Taking device (6) internal upper part is reaction zone, and lower part is settling zone, is equipped with umbrella-shaped baffle (17), reaction zone and settling zone in reaction zone
Between be equipped with liquid distribution trough (18)；Guanite extraction element water outlet (14) is set to settling zone bottom.
3. incineration plant landfill leachate anaerobic pretreatment device as described in claim 1, which is characterized in that the guanite mentions
Device (6) is taken also to be connected with soda acid grug feeding jar one (2), soda acid grug feeding jar two (3), phosphate radical storage tank (4), magnesium salts storage tank (5),
And guanite extraction element (6) makes to reach birds droppings in guanite extraction element (6) equipped with the pH value by controlling reaction solution
The pH on-line measuring device for the optimum condition that stone is formed links with the pump in two soda acid grug feeding jars.
4. incineration plant landfill leachate anaerobic pretreatment device as claimed in claim 3, which is characterized in that the guanite mentions
Device (6) is taken to be additionally provided with the PLC control system controlled for the automatic operating to entire guanite extraction element (6),
All water inlets, water outlet, the control valve of two soda acid grug feeding jars, phosphate radical storage tank (4) and magnesium salts storage tank (5) control valve
The pH on-line measuring device of door and discharge gate valve, guanite extraction element (6) is electricly connected with PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822276992.7U CN209669009U (en) | 2018-12-30 | 2018-12-30 | A kind of incineration plant landfill leachate anaerobic pretreatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822276992.7U CN209669009U (en) | 2018-12-30 | 2018-12-30 | A kind of incineration plant landfill leachate anaerobic pretreatment device |
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| CN209669009U true CN209669009U (en) | 2019-11-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960489A (en) * | 2020-08-07 | 2020-11-20 | 华夏碧水环保科技有限公司 | Garbage penetrating fluid resource recycling system |
| CN115124189A (en) * | 2022-06-24 | 2022-09-30 | 上海康恒环境股份有限公司 | Reactor for removing heavy metal and preventing scale in leachate |
-
2018
- 2018-12-30 CN CN201822276992.7U patent/CN209669009U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960489A (en) * | 2020-08-07 | 2020-11-20 | 华夏碧水环保科技有限公司 | Garbage penetrating fluid resource recycling system |
| CN115124189A (en) * | 2022-06-24 | 2022-09-30 | 上海康恒环境股份有限公司 | Reactor for removing heavy metal and preventing scale in leachate |
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