CN103011469A - Technology for treating initiating explosive material production waste water - Google Patents
Technology for treating initiating explosive material production waste water Download PDFInfo
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- CN103011469A CN103011469A CN201110284805XA CN201110284805A CN103011469A CN 103011469 A CN103011469 A CN 103011469A CN 201110284805X A CN201110284805X A CN 201110284805XA CN 201110284805 A CN201110284805 A CN 201110284805A CN 103011469 A CN103011469 A CN 103011469A
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- waste water
- initiating explosive
- battery lead
- lead plate
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Abstract
The invention relates to a technology for treating initiating explosive material production waste water. The technology is an environmentally friendly key treatment process aiming at waste water pretreatment and nitrophenol waste water in a production process of initiating explosive materials. According to the invention, the process technology has the advantages of clear and complete principles, continuous stable operation of the treatment system, no secondary pollution, COD less than 100mg/l, nitrophenol content less than 1mg/l, the chromaticity nearly zero, and no detectable sulfide. Product water treated by the technology can be directly used for production or greening and has an important meaning to an area with water shortage. A waste water treatment agent cost of the technology is only about 40 yuan per ton of waste water.
Description
Technical field
The present invention relates in a kind of Loading Materials for Initiating Explosive Devices production process of Loading Materials for Initiating Explosive Devices production wastewater treatment technique, particularly a kind of environmental protection the crucial treatment process for Wastewater Pretreatment and nitropheneol waste water.
Background technology
Can produce a large amount of waste water in the production processes such as Loading Materials for Initiating Explosive Devices dinitrodiazophenol, trinitro-resorcinol, these class waste water principal pollutant are chemical oxygen demand (COD) (COD), colourity, nitropheneol, and nitropheneol contains benzene ring structure and nitryl group, chemical stability is high and have toxicity, is different from general organic waste water fully.The Loading Materials for Initiating Explosive Devices enterprises such as many production dinitrodiazophenol, trinitro-resorcinol can not be perplexed by qualified discharge for COD and nitropheneol for a long time.
The Loading Materials for Initiating Explosive Devices factory effluent is the difficult problem that domestic and international sewage disposal is faced always, thereby also is the heat subject of domestic and international Recent study.Having entered at present the method that productivity uses has: active carbon adsorption, electrolytic process, boiler evaporating method, Ozonation, the precipitator method, these methods are all deposited following problem: working cost is high or process water outlet and do not reach " weapon industry pollution discharge standard " requirement (GB14470.2-2002).In addition, people also utilize electricity, ultrasonic wave, UV-light or chemical process,, produce hydroxyl radical free radical under certain condition, make the nitropheneol mineralising, become inorganic salt.But in most of Processing Test stages of these methods, not yet enter productivity and use.
Summary of the invention
The purpose of this invention is to provide a kind of effectively treatment process of continuous Loading Materials for Initiating Explosive Devices factory effluent, particularly for pretreatment technology, nitropheneol treatment process and the whole waste water treatment process of waste water in this technological process.
Technical scheme of the present invention:
Loading Materials for Initiating Explosive Devices production wastewater treatment technique is the characteristics according to waste water, and the wastewater collection that each operation produces is processed to equalizing tank again, and concrete treatment process steps is as follows:
(1) equalizing tank waste water is quantitatively delivered to through pump and is added reductive agent after adjusting PH in reduction pond is acidity;
(2) waste water after step (1) is processed enters reaction tank 1, adds organic coagulant aids at this;
(3) waste water after step (2) is processed carries out solid-liquid separation from flowing into settling tank 1;
(4) supernatant liquor after step (3) is processed enters the three-phase fluidization oxidation bed, carbon containing iron filings and porous plastics grain are filled in three-phase fluidization oxidation bed middle part, the filler bottom is provided with gas distribution system and provides the required oxygen of oxidation and the required power of three-phase fluidization for waste water, and waste water residence time in three-phase fluidized bed is 2～3 hours;
(5) waste water after step (4) is processed enters electricity and causes Three phase 3 D fluidisation oxidation bed, electricity causes in the Three phase 3 D fluidisation oxidation bed and is provided with battery lead plate, battery lead plate all is connected to power supply, it is that waste water provides the required oxygen of oxidation and the required power of three-phase fluidization that electrode packing particles between plates catalyzer, battery lead plate and beaded catalyst bottom are provided with gas distribution;
(6) waste water after step (5) is processed carries out solid-liquid separation from flowing into reaction tank 2 accent PH for alkalescence and adding coagulant aids by being pumped into plate-and-frame filter press;
(7) filtrate after step (6) is processed is regulated at reaction tank 3 and is entered the logical reaction tower of the electricity charge after PH is acidity, adds H simultaneously in tower
2O
2With catalyzer R.Be provided with battery lead plate in the logical reaction tower tower of the electricity charge, battery lead plate all is connected to power supply, and the reaction tower bottom is provided with gas distribution system provides oxygen, and waste water is 6～8 hours at the logical reaction of electricity charge dwell time in the tower;
(8) waste water after step (7) is processed carries out coagulating sedimentation to alkalescence and after adding coagulant aids at settling tank 2 at reaction tank 4 adjusting PH, and supernatant liquor enters clean water basin, and a part is back to production, other qualified discharge.
PH value is less than or equal to 2 in the described step (1).
Organic coagulant aids is PAM in the described step (2).
The volume ratio of carbon containing iron filings and porous plastics grain is 2: 1 in the described step (4), and the particle diameter of carbon containing iron filings and plastics is 2～3mm, and gas-water ratio is 5: 1.
Battery lead plate is through the A3 of special processing steel plate in the described step (5), and the battery lead plate spacing is 25cm～30cm, and access voltage is 5～10V, and electric current is 30～35A, and beaded catalyst is the gac of 3mm, and gas-water ratio is 3: 1.
Transferring pH value in the described step (6) is 8～9, and the coagulant aids of adding is PAM.
Transferring pH value in the described step (7) is that 4～5, R is with AI
2O
3Be one or more oxide compounds among Ti, the Ni of carrier, Mn, the Fe, V
Water: M
H2O2:: M
R=1000ml: 2～8g: 2～3g, battery lead plate is that the battery lead plate spacing is 20cm～25cm through the A3 steel plate of special passivation processing, and access voltage is 10～12V, and electric current is 25～30A, and gas-water ratio is 3: 1.
Transferring pH value in the described step (8) is 8～9, and the coagulant aids of adding is PAM.The treatment process principle analysis of Loading Materials for Initiating Explosive Devices factory effluent:
In the described treatment process steps, step (2), (3), (6), (8) are well-known conventional treatment method.
The technological principle of step (1): under acidic conditions (pH value is less than or equal to 2), under the effect of reductive agent, the polarity of the part contaminant molecule in the waste water will change, become hydrophobic molecule by hydrophilic molecule, solubleness in water reduces, and have tiny suspended particle to generate, and adding again coagulant aids PAM, these tiny suspended particles will be condensed into large alumen ustum.
The technological principle of step (4): the three-phase fluidization oxidation bed is take the original battery electrochemistry reaction as the basis, has drawn the fluidized technology in the chemical industry operation, has formed a kind of efficient wastewater treatment equipment.Essential characteristic is as carrier take carbon containing iron filings, foam grain etc., a series of physics chemical action occurs in the filler in the device and the pollutent of waste water, can produce the coagulating agent of one or more status nascendis and the oxygenant of status nascendi this moment, multiple physics chemical action such as coagulation, absorption, catalyzed oxidation decomposition, complexing, displacement is carried out simultaneously like this, and the pollutent in the waste water is removed rapidly.In addition, the mixed solution of waste water and air from bottom to top makes the carrier fluidisation with certain speed during by packing layer, has realized that gas-liquid-solid three-phase fully contacts, and has improved processing efficiency.
The technological principle of step (5): it is on the basis of catalytic oxidation that electricity causes Three phase 3 D fluidisation oxidation bed, has drawn the fluidized technology of chemical industry operation, a kind of processing high concentrated organic wastewater treatment unit of formation.Its essential characteristic is filler particles gac between two battery lead plates, the Fe in gac and the water
2+Form a large amount of galvanic cells, have little electrolytic action, add a low-voltage dc voltage between battery lead plate, the strength of electric field between the battery lead plate is increased, electric energy increases, the O that the outside provides
2Capture the electronics that extra electric field provides, form the oxyradical ion, this ion generates H through after a series of chain reaction
2O
2, H
2O
2Add outside under the effect of electronics and metal ion, only this is in the hydroxyl radical free radical of fluorion to excite the generation oxidisability, and hydroxyl radical free radical makes organic substance decomposing, mineralising.In addition, the mixed solution of waste water and air from bottom to top makes the carrier fluidisation with certain speed during by packing layer, has realized that gas-liquid-solid three-phase fully contacts, and has improved processing efficiency.
Electricity causes Three phase 3 D fluidisation oxidation bed in whole reaction process, extra electric field is the effect of " safety fuse ", is different from electrolytic process fully, and electrolytic process is that pollutent is in anode and negative electrode generation redox reaction, be converted into innoxious substance and separated, so the electrolytic process energy consumption is very high.
The technological principle of step (7): under the effect of low pressure Static Electro field energy, H is being arranged
2O
2With with AI
2O
3Under one or more oxide compound catalytic conditions among Ti, the Ni of carrier, Mn, the Fe, radical chain reaction will occur, generate hydroxyl radical free radical, make partial organic substances generate carbonic acid gas and water, make a COD degraded part, remaining organism will acidication.Obviously, this is the front degree of depth catalyzed oxidation in (5) step that continues.
Water outlet can be back to production and discharging by direct part after processing.
Beneficial effect of the present invention
1, this technological principle is clear, complete, and treatment system energy continuous and steady operation does not produce secondary pollution.
2, treatment effect COD＜100mg/l, nitrophenol＜1mg/l, colourity is almost nil, and the sulfide inspection does not measure.
3, process water outlet can direct reuse in producing or greening, be of great importance for the area of water resources anxiety, but the reagent cost of processing waste water about 30 yuan/tons of waste water only.
Description of drawings
Fig. 1 Loading Materials for Initiating Explosive Devices production wastewater treatment of the present invention process flow sheet.
Embodiment
With reference to figure 1, characteristics according to the Loading Materials for Initiating Explosive Devices production technique, the wastewater collection that each operation produces is processed to equalizing tank again, its concrete treatment process is as follows: the waste water of equalizing tank is pumped into the reduction pond, add hydrochloric acid and regulate pH value≤2, and adding reductive agent, water outlet is from flowing into reaction tank 1, add coagulant aids PAM at reaction tank 1, water outlet is carried out mud-water separation from flowing into settling tank 1, and supernatant liquor is from flowing into pump well, the waste water of pump well is through being pumped to three-phase sulfidation-oxidation bed oxidation 3 hours, water outlet causes Three phase 3 D fluidisation oxidation bed from flowing into electricity, stops 2.5 hours in bed, and water outlet adds Ca (OH)
2Regulate PH to 8～9, coagulant aids, water behind coagulation is from flowing into the transition pond, carry out mud-water separation through sludge pumping to plate-and-frame filter press, filtrate enters pump well, add hydrochloric acid at pump well and regulate PH to 4～5 by being pumped into reaction tank 3, add catalyzer at reaction tank 3, water outlet stopped 6～8 hours from flowing into the logical reaction tower of the electricity charge, and water outlet adds Ca (OH)
2Regulate PH to 8～9, coagulant aids, the water behind coagulation is from flowing into settling tank, and the settling tank water outlet is squeezed into more medium filter through pump, and the waste water after the filtration is being regulated PH adjustment pond adjusting pH value in 6～9, partly is back to finally by clean water basin and produces all the other qualified discharges.
More than be exactly the process of improving of a complete Loading Materials for Initiating Explosive Devices production wastewater treatment, if management is strict, PH and dosage strictly controlled, waste water is incited somebody to action stably qualified discharge after treatment.
Table 1 passes through the result of laboratory test of the water outlet after aforesaid method is processed for the dinitrodiazophenol factory effluent.Examination criteria is carried out State Standard of the People's Republic of China's " weapon industry pollution discharge standard---Loading Materials for Initiating Explosive Devices " (GB14470.2-2002).
Table 1
As can be seen from Table 1, adopt the inventive method treated water, indices not only all reaches the emission request of national regulation, and far below the maximum emission standard value of national regulation, wherein the clearance of COD reaches 98.95%, the clearance of colourity is near 100%, and the removal class of nitropheneol reaches 99.97%, and the clearance of sulfide is near 100%.
The according to the above description announcement of book and instruction, those skilled in the art in the invention can also change and revise above-mentioned embodiment.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this specification sheets, these terms do not consist of any restriction to the present invention just for convenience of description.
Claims (8)
1. Loading Materials for Initiating Explosive Devices production wastewater treatment technique is characterized in that: concrete treatment process steps is:
(1) equalizing tank waste water is quantitatively delivered to through pump and is added reductive agent after adjusting PH in reduction pond is acidity;
(2) waste water after step (1) is processed enters reaction tank 1, adds organic coagulant aids at this;
(3) waste water after step (2) is processed carries out solid-liquid separation from flowing into settling tank 1;
(4) supernatant liquor after step (3) is processed enters the three-phase fluidization oxidation bed, carbon containing iron filings and porous plastics grain are filled in three-phase fluidization oxidation bed middle part, the filler bottom is provided with gas distribution system and provides the required oxygen of oxidation and the required power of three-phase fluidization for waste water, and waste water residence time in three-phase fluidized bed is 2～3 hours;
(5) waste water after step (4) is processed enters electricity and causes Three phase 3 D fluidisation oxidation bed, electricity causes in the Three phase 3 D fluidisation oxidation bed and is provided with battery lead plate, battery lead plate all is connected to power supply, it is that waste water provides the required oxygen of oxidation and the required power of three-phase fluidization that electrode packing particles between plates catalyzer, battery lead plate and beaded catalyst bottom are provided with gas distribution;
(6) waste water after step (5) is processed carries out solid-liquid separation from flowing into reaction tank 2 accent PH for alkalescence and adding coagulant aids by being pumped into plate-and-frame filter press;
(7) filtrate after step (6) is processed is regulated at reaction tank 3 and is entered the logical reaction tower of the electricity charge after PH is acidity, adds H simultaneously in tower
2O
2With catalyzer R, be provided with battery lead plate in the logical reaction tower tower of the electricity charge, battery lead plate all is connected to power supply, and the reaction tower bottom is provided with gas distribution system provides oxygen, and waste water is 6～8 hours at the logical reaction of electricity charge dwell time in the tower;
(8) waste water after step (7) is processed carries out coagulating sedimentation to alkalescence and after adding coagulant aids at settling tank 2 at reaction tank 4 adjusting PH, and supernatant liquor enters clean water basin, and a part is back to production, other qualified discharge.
2. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: pH value is less than or equal to 2 in the described step (1).
3. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: organic coagulant aids is PAM in the described step (2).
4. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: the volume ratio of carbon containing iron filings and porous plastics grain is 2: 1 in the described step (4), and the particle diameter of carbon containing iron filings and plastics is 2～3mm, and gas-water ratio is 5: 1.
5. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: battery lead plate is through the A3 of special processing steel plate in the described step (5), the battery lead plate spacing is 25cm～30cm, access voltage is 5～10V, electric current is 30～35A, beaded catalyst is the gac of 3mm, and gas-water ratio is 3: 1.
6. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: transferring pH value in the described step (6) is 8～9, and the coagulant aids of adding is PAM.
7. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: transferring pH value in the described step (7) is that 4～5, R is with AI
2O
3Be one or more oxide compounds among Ti, the Ni of carrier, Mn, the Fe, V
Water: MH
2O
2:: M
R=1000ml: 2～8g: 2～3g, battery lead plate is that the battery lead plate spacing is 20cm～25cm through the A3 steel plate of special passivation processing, and access voltage is 10～12V, and electric current is 25～30A, and gas-water ratio is 3: 1.
8. described Loading Materials for Initiating Explosive Devices production wastewater treatment technique according to claim 1, it is characterized in that: transferring pH value in the described step (8) is 8～9, and the coagulant aids of adding is PAM.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110284805.XA CN103011469B (en) | 2011-09-23 | 2011-09-23 | Technology for treating initiating explosive material production waste water |
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| CN201110284805.XA CN103011469B (en) | 2011-09-23 | 2011-09-23 | Technology for treating initiating explosive material production waste water |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562818A (en) * | 2004-04-01 | 2005-01-12 | 广东省三○九厂 | Method for treating wastewater of dinitrodiazophenol |
| CN101519260A (en) * | 2008-02-28 | 2009-09-02 | 清远市灵捷制造化工有限公司 | Molecular micro-electrolysis treatment method for dinitrodiazophenol wastewater |
| CN101693572A (en) * | 2009-10-28 | 2010-04-14 | 雅化集团绵阳实业有限公司 | Dinitrodiazophenol waste water processing method |
| CN101734817A (en) * | 2009-12-31 | 2010-06-16 | 江苏苏净集团有限公司 | Method for treating organic chemical waste water |
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2011
- 2011-09-23 CN CN201110284805.XA patent/CN103011469B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562818A (en) * | 2004-04-01 | 2005-01-12 | 广东省三○九厂 | Method for treating wastewater of dinitrodiazophenol |
| CN101519260A (en) * | 2008-02-28 | 2009-09-02 | 清远市灵捷制造化工有限公司 | Molecular micro-electrolysis treatment method for dinitrodiazophenol wastewater |
| CN101693572A (en) * | 2009-10-28 | 2010-04-14 | 雅化集团绵阳实业有限公司 | Dinitrodiazophenol waste water processing method |
| CN101734817A (en) * | 2009-12-31 | 2010-06-16 | 江苏苏净集团有限公司 | Method for treating organic chemical waste water |
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