CN1150126A - Method of and system for disposing sewage and waste water through thermal oxidation - Google Patents
Method of and system for disposing sewage and waste water through thermal oxidation Download PDFInfo
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- CN1150126A CN1150126A CN96107121A CN96107121A CN1150126A CN 1150126 A CN1150126 A CN 1150126A CN 96107121 A CN96107121 A CN 96107121A CN 96107121 A CN96107121 A CN 96107121A CN 1150126 A CN1150126 A CN 1150126A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 99
- 239000010865 sewage Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000003647 oxidation Effects 0.000 title abstract description 5
- 238000007254 oxidation reaction Methods 0.000 title abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 74
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000011282 treatment Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000001590 oxidative effect Effects 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 229910001385 heavy metal Inorganic materials 0.000 claims description 14
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 6
- 229910019093 NaOCl Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims 1
- 239000003456 ion exchange resin Substances 0.000 claims 1
- 229920003303 ion-exchange polymer Polymers 0.000 claims 1
- 239000007800 oxidant agent Substances 0.000 abstract description 16
- 238000003911 water pollution Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000000203 mixture Substances 0.000 description 13
- 238000012545 processing Methods 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 12
- 238000004062 sedimentation Methods 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/025—Thermal hydrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Removal Of Specific Substances (AREA)
Abstract
There is provided a method of disposing sewage and waste water through thermal oxidation, comprising the steps of: collecting and sedimenting sewage and waste water in a storage tank; adding 100-5,000 mg/l of a first oxidizing agent to the sewage and waste water; reacting the sewage and waste water with the first oxidizing agent in a first reaction vacuum tank at 40 to 90 DEG C for 15-45 min while stirring; and filtering the resulting sewage and waste water, that contributes to the prevention of water pollution and to the protection of nature.
Description
The present invention relates to method and system by thermal oxidative treatment sewage and waste water.Here used " sewage and waste water " expression is from the sewage and the waste water of factory and family.More particularly, the present invention relates to utilize again efficient and economically the thermal oxidation process and the system of sewage and waste water.
In order to understand technical background of the present invention better, below in conjunction with the ordinary method of some accompanying drawing narration wastewater treatments.Shown in Figure 1A, waste water is at first introduced storage tank, enters pH control pond then and makes the pH value of waste water be suitable for handling, and then enters reaction tank, and the pollutant reaction in various here chemical and the water makes their detoxifcations.After this, water enters coagulation basin, and flows into sedimentation basin or flocculation basin.When carrying out two last processes, removed pollutent.Another kind method is that shown in Figure 1B, behind pH control pond, waste water enters the aeration tank, here carries out a biological disposal upon with microorganism.In sedimentation basin, remove pollutent.These two methods can be used in combination.
It is found that according to these conventional methods, the ratio physical treatment of removing of organic substance (biochemical oxygen demand (BOD)) is 30%, is 40-50% with chemical treatment, is 70-90% with biological treatment.The efficient of comparing these processing with the cost of device and operation thereof is extremely low.This type systematic particularly for the waste water that is difficult to decompose, comprises the waste water from the system of dying, printing or leather-making technology, and its processing efficiency is extremely low.The economical efficiency of these methods is not good, and is therefore almost useless in practice.
Even incomplete sewage of a spot of processing and waste water are put into contiguous streams and river, it can pollute physical environment, destroys the ecosystem, finally jeopardizes the mankind.In addition, the shortage that is attributable to the process water of incomplete regeneration of this class or other factors also becomes the obstacle of industrial development.
Therefore, an object of the present invention is to overcome the above-mentioned problems in the prior art, providing can be fully except that the heavy metal in decontaminated water and the waste water and the sewage and the wastewater treatment method of pigment.
Another object of the present invention provides sewage and wastewater treatment and changes over the method for process water.
A further object of the present invention provides the method for disposing of sewage with waste water, and it can prevent water pollution and protect nature.
Another object of the present invention provides favourable economically disposing of sewage and the method for waste water.
A further object of the present invention provides the system by thermal oxidative treatment sewage and waste water.
According to an aspect of the present invention, it provides the method by thermal oxidative treatment sewage and waste water, and the step that comprises is: collect in storage tank and deposition sewage and waste water; In sewage and waste water, add 100-5,000 mg/litre, first oxygenant; Under 40-90 ℃, sewage and waste water and first oxygenant were reacted 15-45 minute in the first vacuum reaction pond, stir simultaneously; Filter the sewage and the waste water of gained.
According to another aspect of the present invention, it provides the system that is used for by thermal oxidative treatment sewage and waste water, comprising: with the vacuum reaction pond of lagging material coating; An import that allows sewage and waste water enter the vacuum reaction pond in vacuum reaction pond one side, and the outlet that allows sewage and waste water discharge of the relative side in the vacuum reaction pond; Be used for stably keeping two semi-circular dividing plates of the sewage and the residence time of waste water in the vacuum reaction pond, each respectively is contained in export and import one side all at the lower position opening; Be contained in vacuum reaction pond central authorities and be used for making sewage and the waste water uniform agitator that becomes; In the vacuum reaction pond, be used for heating the device of sewage and waste water; Be used for monitoring the tensimeter of vacuum reaction pond internal pressure; And link to each other, be used for the inner gas that produces in vacuum reaction pond is sent back to the vapor pipe of storage tank or inlet pipeline with tensimeter.
Other purpose of the present invention and aspect are narrated by embodiment with reference to accompanying drawing, wherein:
Figure 1A and Figure 1B are the process flow sheets of the ordinary method of display process sewage and waste water;
Fig. 2 is the process flow sheet that shows by the inventive method of thermal oxidative treatment sewage and waste water;
Fig. 3 is the sectional view that shows vacuum reaction of the present invention pond;
Fig. 4 is the orthographic plan that shows the vacuum reaction pond of making by Fig. 3 A-A line.
According to the present invention, as shown in Figure 2, be the vacuum reaction pond of a complete closed in the back of the storage tank of collecting sewage and waste water, rather than pH of the prior art control pond or aeration tank. Can adopt the vacuum reaction pond of a plurality of series connection. Sewage and waste water from the vacuum reaction pond enter pH control pond and sedimentation basin, and the solid-liquid separate tank, carry out coagulation. Then, water carries out two stage treatment again in activated carbon filtration pond and outflow pond.
In order more at large to set forth, now consult the Fig. 3 that schematically shows the vacuum reaction pond. Vacuum reaction pond 10 is with the chemicals tank of the mixture that contains oxidant and heavy metal treatment agent. When sewage and waste water flowed into vacuum reaction pond 10 by inlet tube 16, measuring pump 12 brought into operation, and reagent mixture is pumped into pipeline 16, therein sewage and waste water and reagent mix. Here, " vacuum reaction pond " is identical with the implication of " reactive bath technique " that use below or " reaction tank ".
Outside vacuum reaction pond 10, heater is housed, comes the reaction of accelerating oxidation agent and sewage and waste water by the temperature in rising vacuum reaction pond. This reaction temperature better is to remain on 40-90 ℃, more preferably 70-90 ℃. For heater 18, can use electric heater, steam boiler and so on.
For oxidant, the present invention can use two kinds: first oxidant and second oxidant.
First oxidant can use H2O
2、MnO
2、HNO
3、KMnO
4Perhaps their mixture. The preferably processed sewage of the selective basis of first oxidant and waste water and decide. In general, 10-40 mg/litre H2O
2With 4,000-80,000 mg/litre KMnO4The oxidable most of sewage of first oxidant mixture and waste water. The suitable concn of processing first oxidant of general sewage and waste water is 100-5,000 mg/litre sewage and waste water, but can outside this scope, can decide according to BOD and the COD of sewage and waste water.
Second oxidant is to be selected from NaClO at least3，KMnO
4，NaOCl，KCr
2O
7，
KNO
3，NaNO
3，K
2S
2O
8And H2SO
4A kind of. Most of sewage and waste water can be used KMnO4、K
2S
2O
8And H2SO
4Mixture process, concentration separately is 4,000-80,000 mg/litre, 1,000-3,000 mg/litre and 70-150 mg/litre, or use KMnO4, NaOCl and K2S
2O
8Mixture process, concentration separately is 4,000-80,000 mg/litre, 1,000-2,000 mg/litre and 1,000-3,000 mg/litre. As first oxidant, the suitable concn scope of the general sewage of second oxidizer treatment and waste water is 100-5,000 mg/litre. But this scope can change with BOD and the COD of processed sewage and waste water.
Can arbitrarily heavy metal treatment agent be mixed first oxidant uses. In the case, available any commercially available heavy metal treatment agent. It is alone or be used in combination to process sewage and the waste water that contains heavy metal to be preferably " EPOFLOC L-1 " (YongI1 Chemical Co.Ltd, Korea S), " ORITOL-S " (An Kook Chemical Co. Ltd., Korea S) and NaOH. Consider cost and efficient, the consumption of heavy metal treatment agent is 10-100 mg/litre sewage and waste water, is preferably 20-50 mg/litre sewage and waste water.
As mentioned above, be used for disposing of sewage and can decide according to the kind of processed sewage and waste water with reagent type and the concentration of waste water, most applications can be used aforesaid scope.
In vacuum reaction pond 10, the reagent one of sewage and waste water and various introducings reacts.Be reflected at and carried out in the reaction tank 15-40 minute, be preferably 30-40 minute.
Between this reaction period, the operation that is contained in the agitator 15 of reaction tank 10 central authorities makes reactive system become even.This moment available a plurality of agitators.After agent treated, sewage and waste water are discharged by the outlet pipe 17 that is contained in inlet pipe 16 opposites.As shown in Figure 3, respectively be contained in a side of inlet pipe 16 and discharge nozzle 17 at two semi-circular dividing plates 19 of lower position opening.When disposing of sewage with waste water, reaction tank 10 keeps vacuum.In order to keep vacuum, the gas that produces in reaction tank 10 during reaction drains into storage tank or inlet pipe on top by vent valve 14 under manometric monitoring.That is, in enclosed vacuum reaction tank 10, sent back to storage tank or inlet pipe, thereby prevented secondary pollution by the gas of sewage and waste water and oxidant reaction generation.Reaction tank 10 usefulness thermal insulation materials 20 are coated with reducing thermal losses.Available any typical thermal insulation material.
In principle, sewage and waste water and oxygenant and other suitable chemical are introduced in the vacuum reaction pond 10 by pipeline 16, mix by agitator 15, react when making temperature of reaction remain on 40-90 ℃, and discharge by outlet pipe 17 in heating unit 18 work.In this process, vacuum reaction pond 10 remains on vacuum state by the vent valve 14 that leads to storage tank or inlet pipe.
Referring to Fig. 4, this is the orthographic plan of making along A-A line among Fig. 3.As shown in the drawing, two semi-circular dividing plates 19 at the lower position opening respectively are contained in a side of inlet pipe 16 and a side of outlet pipe 17, so that there is time enough that sewage and waste water and reagent are fully reacted.Like this, the sewage of introducing and waste water replenish from lower position.
Conventional uncovered reaction tank or only be heated to when being lower than 40 ℃, reaction can not be complete.Particularly, open reaction tank reaches 50% or lowlyer do not have a practical value owing to running cost very high-level efficiency is low.
According to the present invention, if sewage and waste water are collected and introduce storage tank, level switch can perception sewage and the amount of waste water, and signal is beamed back central authorities' control (not shown).Like this, under central authorities' control, used machine brings into operation, as, automatically pump sewage and waste water.The sewage of storage tank and waste water begin to flow into reaction tank.Simultaneously, the squirt pump 12 that links to each other with chemicals tank 11 is started working, and will deliver to inlet pipe 16 from the oxygenant of chemicals tank 11.Therefore sewage and waste water are to enter reaction tank with oxygenant blended state.This mixture is mixing by agitator in the enclosed vacuum reaction tank 10 fully.The high temperature that is kept by heating unit 18 makes sewage and waste water be easy to oxidation.Carry out pH regulator in a pond after, sewage and waste water are transferred to sedimentation basin, enter the solid-liquid separate tank then, and sewage and waste water are separated into supernatant liquor and mud therein.Supernatant liquor for example filters with activated charcoal filter and ion exchange column.In flowing out pond or circulatory pool, collect the water that has carried out above-mentioned processing.The water of gained can be used as the bath water of process water and lavatory or vehicle.Simultaneously, the mud of staying in the sedimentation basin can be handled with general method.
Consider efficient, be preferably sewage and waste water were handled 15-40 minute in each reaction tank, be more preferably and handled 30-40 minute.
Sewage of having handled in the vacuum reaction pond and waste water now are transferred to pH control pond and sedimentation basin.As the pH control agent, the mixture of available sulfuric acid and sodium hydroxide.
Can understand the present invention better by the following example, but these embodiment do not limit the present invention.
Dye the waste water of system industry
Handle with the inventive method according to conventional methods from the waste water that the end station of Panwol industrial complex (Korea S Ansan) is discharged.Waste water mainly forms from bleaching, refining and washing.Panwol industrial complex produces 100,000m every day
3Such waste water.
Be analytical results mean concns below to waste water.
pH：6-7
BOD (biochemical oxygen demand (BOD)): about 300 mg/litre
COD (chemical oxygen demand (COD)): about 400 mg/litre
SS (suspended solids): about 120 mg/litre
N-H (normal hexane): about 35 mg/litre
Color index: 800 °.Comparing embodiment 1
The waste water that is collected in the pond is handled with NaOH, pH regulator is arrived 6-8.Carry out a biological disposal upon with the standard activated-sludge method, use equal-volume H then
2O
2, FeCl
3And Al
2(SO
4)
317H
2The mixture of O is handled with secondary chemical method.
But the BOD that it is found that the water of gained is 50 mg/litre, and color index is 100 °, in fact can not be utilized again.And another prominent question of this ordinary method is that processing efficiency is extremely low.This has limited the investment to production facility.In addition, such method also requires very big place to handle waste water.Example I
The method according to this invention, waste water is handled in two placed in-line vacuum reaction ponds, carries out solid-liquid then and separates.Obtain result as following table 1.First oxygenant of introducing the first vacuum reaction pond with waste water is the 35%H of 1: 20 (volume ratio)
2O
2: 2.5N KM-nO
4As second oxygenant, the mixture of use comprises 2.5N KMnO
4, 0.01MK
2S
2O
8And 17%H
2SO
4, its volume ratio is 10: 1: 2.5.Heavy metal treatment agent has used the mixture of 1: 1: 100 volume ratio of " EPOFLOC L-1 " (Yong I1 Chemical Co.Ltd. Korea S), " ORITOL-S " (An Kook Chemical Co.Ltd. Korea S) and 0.1N NaOH.When first oxygenant and heavy metal treatment agent were used to the first vacuum reaction pond, second oxygenant added the second vacuum reaction pond.The temperature of each reaction tank remains on 70-90 ℃, reagent and waste water reaction 30 minutes.In the method for routine, the solid-liquid separation is carried out with condensing agent and promotor, and it carried out before sedimentation basin.By contrast, waste water has stayed sedimentary mud after regulating pH.
Table 1
Example II
| Concentration chemical (mg/l) | Be untreated and handle the efficient of aftertreatment |
| The 1st oxygenant 1,100 heavy metals are handled 50 the 2nd oxygenants, 1,100 NaOH 100 | 100 ° 0 100% of pH 4-10 7 100% BOD 300mg/l 2mg/l 99.4% COD 400mg/l 4mg/l 99.0% SS 120mg/l 0 100% N-H 35mg/l 0 100% color index |
The waste water that with BOD is 240 mg/litre is handled with method of the present invention.The result is as shown in table 2 below.From this table as seen, when temperature of reaction rose, processing efficiency improved.Second oxygenant and the neutralizing agent identical have only been used, because waste water does not contain heavy metal with example I.So only need a vacuum reaction pond.
Table 2
The processing efficiency of differential responses temperature
EXAMPLE III
| ???BOD(mg/l) | The 2nd oxygenant neutralizing agent temperature of reaction reaction times of efficient |
| After the untreated processing | |
| ??240???????2 ??240???????10 ??240???????20 | 40 ℃ of 60 ℃ of 40 minutes 91.7% 400mg/l 50mg/l of 80 ℃ of 40 minutes 95.8% 400mg/l 50mg/l of 99.2% 400mg/l 50mg/l 40 minutes |
The waste water that with COD is 400 mg/litre is handled with method of the present invention.Repeat the step of example I, use identical oxygenant.The result is as shown in table 3 below.As seen from the table, there is result preferably in the long reaction times.
Table 3
The processing efficiency of differential responses time
| ???BOD(mg/l) | Efficient temperature of reaction reaction times color index |
| After the untreated processing | |
| ????400?????2 ????400?????4 ????400????10 ????400????100 | 99.0% 80 ℃ 40 minutes 0 97.5% 80 ℃ 35 minutes 0 97.5% 80 ℃ 30 minutes 100 95.0% 80 ℃ 25 minutes 200 |
As seen, processing efficiency is subjected to concentration, temperature of reaction and the time effects of first, second oxygenant and heavy metal treatment agent from table 1,2 and 3.The concentration that is oxygenant must be decided according to the pollution level of waste water and the necessary cleanliness factor of water of discharge.For the reuse water of industry, need longer reaction times and the temperature of Geng Gao.
For example, when the COD of the waste water of handling is 400 mg/litre, then needed first oxidant concentration is 1,100 mg/litre, and it is 1,000 mg/litre that second oxygenant requires, and it is 100 mg/litre that neutralizing agent requires.In order to remove COD and color and luster fully, should under 80 ℃ or higher temperature, reaction be carried out 35 minutes at least.For the waste water that contains heavy metal, the heavy metal treatment agent that the 10-100 mg/litre must be arranged is to reach good processing efficiency.
As previously mentioned, can cost-effectively sewage be become industrial reuse water with wastewater treatment with method of the present invention.Therefore the present invention has certain contribution to preventing water pollution and conservation of nature.
The present invention is described with for example method, is understood that terminology used here only is used for explanation and limits for being used for.
According to above-mentioned thought, the present invention can have many modifications and change.Therefore, being to be understood that the present invention can adopt with the mode that offered some clarification in the appending claims scope implements.
Claims (10)
1. method by thermal oxidative treatment sewage and waste water, it comprises the following steps:
In storage tank, collect and deposition sewage and waste water;
In sewage and waste water, add 100-5, first oxygenant of 000 mg/litre;
Under 40-90 ℃, sewage and waste water and first oxygenant were reacted 15-45 minute in the first vacuum reaction pond, stir simultaneously; And
Filter the sewage and the waste water of gained.
2. method according to claim 1, it further is included in reaction one and goes on foot the step that adds the heavy metal treatment agent of 10-100 mg/litre before in described first oxygenant.
3. method according to claim 1, it adds 100-5 to sewage and waste water from the described first vacuum reaction pond before further being included in and filtering a step in the second vacuum reaction pond, second oxygenant of 000 mg/litre, and make sewage and waste water and second oxygenant 40-90 ℃ and stir under reaction 15-45 minute.
4. method according to claim 1, wherein said first oxygenant is at least a H of being selected from
2O
2, MnO
2, HNO
3And KMnO
4Material.
5. according to claim 1 or 4 described methods, wherein said first oxygenant comprises the H of 10-40 mg/litre water
2O
2With 4,000-80, the KM-nO of 000 mg/litre water
4
6. method according to claim 3, wherein said second oxygenant is at least a NaClO of being selected from
3, KMnO
4, NaOCl, KCr
2O
7, KNO
3, NaNO
3, K
2S
2O
8And H
2SO
4Material.
7. according to claim 3 or 6 described methods, wherein said second oxygenant comprises 4,000-80, the KMnO of 000 mg/litre water
4, 1,000-30, the K of 000 mg/litre water
2S
2O
8H with 70-150 mg/litre water
2SO
4
8. according to claim 3 or 6 described methods, wherein said second oxygenant comprises 4,000-80, the KMnO of 000 mg/litre water
4, 1,000-2, the NaOCl of 000 mg/litre water and 1,000-3, the K of 000 mg/litre water
2S
2O
8
9. method according to claim 1, wherein said filtration step comprise uses gac and ion exchange resin.
10. system by thermal oxidative treatment sewage and waste water comprises:
Vacuum reaction pond with the lagging material coating;
An import that allows sewage and waste water enter the vacuum reaction pond in vacuum reaction pond one side, and the outlet that allows sewage and waste water discharge of the relative side in the vacuum reaction pond;
Be used for making keep two stable semi-circular dividing plates sewage and the waste water residence time in the vacuum reaction pond, each lays respectively at outlet side and on the suction side all in the lower position perforate;
Be contained in vacuum reaction pond central authorities and be used for making sewage and the waste water uniform agitator that becomes;
In the vacuum reaction pond, be used for heating the device of sewage and waste water;
Be used for monitoring the tensimeter of vacuum reaction pond internal pressure; And
Link to each other, be used for the inner gas that produces in vacuum reaction pond is sent back to the vapor pipe of storage tank or inlet pipeline with tensimeter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950016794A KR0151355B1 (en) | 1995-06-21 | 1995-06-21 | Apparatus and method for the treatment of waste water |
| KR16794/95 | 1995-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1150126A true CN1150126A (en) | 1997-05-21 |
Family
ID=19417815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96107121A Pending CN1150126A (en) | 1995-06-21 | 1996-06-21 | Method of and system for disposing sewage and waste water through thermal oxidation |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR0151355B1 (en) |
| CN (1) | CN1150126A (en) |
| GB (1) | GB2302328B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190326A (en) * | 2010-03-05 | 2011-09-21 | 昶昕实业股份有限公司 | Methods for recovering copper from copper-containing waste liquor |
| CN105152300A (en) * | 2015-08-05 | 2015-12-16 | 同济大学 | Method for degrading taste and odor compound in water based on thermally-activated oxidant |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101585853B1 (en) | 2014-01-15 | 2016-01-15 | 주식회사 메트로엔지니어링 | Environmental pollution prevention equipment type steam removal device |
| CN110357186A (en) * | 2019-06-14 | 2019-10-22 | 盐城荣平建设工程有限公司 | A kind of ground construction environment-friendly sewage purification ancillary equipment |
-
1995
- 1995-06-21 KR KR1019950016794A patent/KR0151355B1/en not_active IP Right Cessation
-
1996
- 1996-06-19 GB GB9612871A patent/GB2302328B/en not_active Expired - Fee Related
- 1996-06-21 CN CN96107121A patent/CN1150126A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190326A (en) * | 2010-03-05 | 2011-09-21 | 昶昕实业股份有限公司 | Methods for recovering copper from copper-containing waste liquor |
| CN105152300A (en) * | 2015-08-05 | 2015-12-16 | 同济大学 | Method for degrading taste and odor compound in water based on thermally-activated oxidant |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2302328A (en) | 1997-01-15 |
| KR960037582A (en) | 1996-11-19 |
| GB9612871D0 (en) | 1996-08-21 |
| GB2302328B (en) | 1997-12-03 |
| KR0151355B1 (en) | 1998-08-17 |
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