CN1023208C - Process and equipments for treating waste liquor of red nitric acid - Google Patents
Process and equipments for treating waste liquor of red nitric acid Download PDFInfo
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- CN1023208C CN1023208C CN 87104406 CN87104406A CN1023208C CN 1023208 C CN1023208 C CN 1023208C CN 87104406 CN87104406 CN 87104406 CN 87104406 A CN87104406 A CN 87104406A CN 1023208 C CN1023208 C CN 1023208C
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- nitric acid
- wastewater treatment
- waste water
- treatment equipment
- bicycle shed
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Abstract
The method adopts a roller neutralization method, and the technological process comprises mixing, neutralization, refining, reverse aeration and filtering. The process is mainly realized by technological devices, such as a water pump, an elevator, an acidulous water treater, a clarifying tank, a spray head, a filter, etc., and the technological devices except the filter are all arranged in a boxcar; the boxcar is dragged by a towing vehicle, and then a self-propelled waste water treatment device is formed. The present invention is used for treating the 20S waste water of an oxidizing agent, namely nitric acid; if reagents are changed, the present invention can also be used for treating alkali waste water.
Description
The present invention relates to a kind of acid waste water, particularly red nitric acid method of wastewater treatment and device thereof are mainly used in and handle guided missile oxygenant nitric acid-2OS waste water.
For the processing of guided missile oxygenant nitric acid-2OS waste water, generally all adopt two kinds of methods (" Industrial Wastewater Treatment handbook, 496～507 pages, nineteen eighty-three workman press) at present both at home and abroad: (1) clay treatment method.Here it is in the corner, the method for digging pit in the barren hill and burying; (2) sea disposal method.Here it is with waste water storage in encloses container, encloses container devoted among the deep-sea again.These two kinds of methods all can cause secondary pollution because of without any physics and chemical treatment, destroy the eubiosis, influence safety, and waste time and energy.For the processing of general acid waste water, generally adopt at present two kinds of methods (" Industrial Wastewater Treatment engineering ", 349～350 pages, nineteen eighty-three University Of Xiangtan's chemical industry based environment engineering teaching and research room): during (1) flow lifting type expands and filter tank; (2) during speed changing type expands and filter tank.In these two kinds of filter tanks, all be that Wingdale is fixed, waste water by its down on flow through, be easy to generate like this that filtrate hardens and latch up phenomenon, cause reaction not exclusively, water outlet is difficult to reach national industrial discharge water quality standard.
Task of the present invention provides a kind of easy to use and low self-propelled red nitric acid method of wastewater treatment and device thereof of processing cost, be mainly used in and handle guided missile oxygenant nitric acid-2OS waste water, handling waste strength is 100～1000 mg/litre (being pH=2.8～1.8), and the discharge water after disposable processing reaches the industrial discharge standard.
Task of the present invention is achieved by the following technical solution.
At first be in the Wingdale neutralisation, make the filtration neutralisation that generally adopts at present into the cylinder neutralisation.This method technical process is mixing, neutralization, clarification, oppositely aeration and filtration.The function of each operation and being characterized as:
Mix: the waste water of wastewater disposal basin extracts with pump, flows to loading hopper through throttling valve, flow agent, and Wingdale is directly mentioned loading hopper by lift.
Neutralization: waste water flows to cylinder through pipeline and neutralizes with after Wingdale mixes in loading hopper.
The clarification: waste water and Wingdale in cylinder and after, flow to settling pond by its tail end mounting flange and pipeline.
Reverse aeration: waste water is extracted out by pump after neutralization, clarification, and through the reverse aeration of shower nozzle, jet flow is to strainer.
Filter: the treating water behind the reverse aeration of shower nozzle, in strainer, filter, remove suspended substance and silt particle, make water outlet limpid.
Next is to utilize prior art, selects, development one cover process unit, make its with decide technical process and desired result adapts.This process unit mainly comprises intake pump, lift, sour water handler, settling pond, goes out water pump, shower nozzle, strainer etc.Described process unit except that strainer, all is installed in the box car, and this box car is dragged by tow tractor, forms a kind of self-propelled wastewater treatment equipment.
Accompanying drawing has been described one embodiment of the present of invention.
Fig. 1. red nitric acid sewage treatment technology process synoptic diagram;
Fig. 2. red nitric acid waste water treatment process device plot plan;
Fig. 3. self-propelled red nitric acid wastewater treatment equipment synoptic diagram;
Fig. 4. neutralization cylinder output terminal sectional view;
Fig. 5. neutralization cylinder input terminus sectional view;
Fig. 6. the box car rear view.
Embodiment 1. red nitric acid wastewater treatment equipments.
This device is made of established technology device, bracing or strutting arrangement and towing mechanism three parts.Process unit comprises intake pump (1), single bucket elevator (2), sour water handler (3), settling pond (4), goes out water pump (5), shower nozzle (6), strainer (7).Bracing or strutting arrangement is box car (12).Towing mechanism is automobile (13).
Intake pump in the process unit (1) is used to extract red nitric acid waste water, adopts acidproof volute pump; Single bucket elevator (2) is used to extract Wingdale, 3～4 kilograms of every bucket load-carryings; Sour water handler (3) is used for and red nitric acid waste water, and it comprises four parts: supervisory control desk (8), in and cylinder (9), loading hopper (10), deceleration device (11).Supervisory control desk (8) control total system, comprise intake pump (1), lift (2), in and cylinder (9), go out water pump (5) and room light, fan etc., make its co-ordination.In order to work conveniently, supervisory control desk (8) structure is made up of three parts: top is dashboard, is thereafter electric control box simultaneously, and the bottom is the work box.Settling pond (4) is used for clarification and water, adopts the steel sheet manufacturing, about 1 meter of volume.Go out the primary water after water pump (5) is used to extract processing, adopt the cast iron volute pump.
In order to prevent that water outlet from leaking, in and cylinder (9) output terminal be provided with mounting flange (14) and tightness system (15); In order to dwindle sour water handler (3) axial dimension so that install on the car, should make loading hopper support (16) as far as possible near in and cylinder (9), the obliquity of input channel (17) is increasing as far as possible, so that the charging smoothness.
Above-mentioned process unit except that strainer (7) build in the car wastewater disposal basin nearby outside, all the other devices (1)～(6) are installed in box car (12) lining.Box car (12) is dragged by tow tractor (13), forms a kind of self-propelled wastewater treatment equipment.
Box car (12) is converted by the supporting trailer of automobile, mainly is to make former trailer into bicycle shed (25), and bicycle shed one side is two fan open type gates (18), (19), during horizontal positioned, the platform of can working uses, and is movable column between two, has made things convenient for the in-vehicle device installation; A fan wicket (20), (21), (22) are respectively established in front and rear portions and central position, back in the another side, and the below, back door is provided with drawer type ladder (23), during vehicle to run, can be collected in the below, back door, pulls out use, convenient work when handling waste water.Be covered with acid-resistant rubber sheet on the base plate of trailer chassis (24), to guarantee that safety, bicycle shed (25) are metal construction, wherein skeleton is the hollow profile that steel sheet is made, and the canopy cover is made by the rust-preventing aluminum alloy plate, has both improved intensity, has alleviated weight again.
Reach state-set standard in order to ensure discharge water, adopt the cylinder neutralisation.The limit rotation in cylinder of mixed waste water and Wingdale, limit neutralization are fully carried out neutralization reaction.When utilize this method to concentration be 100～1000 mg/litre guided missile oxygenant nitric acid-when 2OS waste water was handled, its corresponding process parameters was: 2～1 meters of wastewater treatment capacity (being the intake pump flow)
3/ hour; In and 20～10 rev/mins of drum rotational speeds; CaCO in the Wingdale
3Content 〉=90%; To the open drive first time, in should making He in the cylinder 100～200 kilograms Wingdale is arranged; In operation process, also should add 3～4 kilograms of Wingdales per half an hour.Concrete parameter and treatment effect following (table is seen the literary composition back).
Above-mentioned self-propelled wastewater treatment equipment has following advantage and effect:
1) maneuverability, easy to use:,, particularly favourable to the Fixed Point Operation of flowability so a table apparatus can be handled the waste water in several places because device is a self-propelled.
2) reagent source is wide, and universal performance is good: the domestic overwhelming majority all has Wingdale inside the province, helps the popularization of this device, and changes reagent, also can be used for handling alkaline waste water.Its use department spreads all over chemical industry, pharmacy, weaving, metallurgy, mine, factory, R﹠D institution and test base.
3) got rid of secondary pollution: owing to adopt cylinder neutralization, sufficient reacting; Adopt reverse aeration, removed the CO that produces in the reaction
2; The employing fine sand filters, and has removed suspended substance and dregs thereof, so discharge water pH value is higher, and content of fluoride in the waste water is had certain removal ability, and discharge water is limpid, transparent, meets national industrial discharge water quality standard fully.
4) reduced processing cost: general sour water processing cost; domestic is 0.861 yuan/ton; the annual fate 365 days (" waste disposal plant survey data compilation " of handling; 478～524 pages; Circumstances Protection Science Inst. of Jinzhou City); this device then is 0.60 yuan/ton, and annual processing fate is 200 days.
The final discharge water index of raw wastewater Wingdale drum rotational speed
CaCO in the wastewater treatment capacity
3PH COD F
Content rev/min suspended substance
PH rice
3/ hour (%) mg/litre mg/litre mg/litre
1.8 1.4 95 11 6.3 15.08 4.84 41.25
2.3 1.5 95 15 6.2 6.78 3.23 24.50
2.8 1.8 95 17 6.7 3，32 2.91 10.25
Claims (5)
1, a kind of red nitric acid method of wastewater treatment, wherein every liter of waste water contains 100～1000 milligrams of nitric acid, this method comprises the steps: Wingdale neutralization, clarification, filters, and it is characterized in that has reverse aerating step in clarification with between filtering, in the described Wingdale and adopt the cylinder neutralization.
2, a kind of red nitric acid wastewater treatment equipment, comprise intake pump (1), lift (2), sour water handler (3), settling pond (4), go out water pump (5), shower nozzle (6), it is characterized in that above-mentioned treatment unit is positioned in the box car (12), box car (12) is dragged by tow tractor (13), form a kind of self-propelled wastewater treatment equipment, strainer (7) is installed in outside the box car (12).
3, red nitric acid wastewater treatment equipment as claimed in claim 2, it is characterized in that sour water handler (3) is provided with supervisory control desk (8), the top of supervisory control desk (8) is dashboard, it is electric control box thereafter, the bottom is the work box, in the sour water handler and cylinder (9) output terminal be provided with mounting flange (14) and tightness system (15).
4, red nitric acid wastewater treatment equipment as claimed in claim 2, it is characterized in that box car (12) comprises open type gate (18), (19), wicket (20), (21), (22), drawer type ladder (23), chassis (24) and bicycle shed (25), described gate 918), (19) be positioned at bicycle shed (25) one sides, wicket (20), (21), (22) are located at the front and rear portions and bicycle shed (25) central position, back of bicycle shed (25) opposite side.
5, red nitric acid wastewater treatment equipment as claimed in claim 4 is characterized in that bicycle shed (25) is metal construction, and wherein skeleton is the hollow profile that steel sheet is made, and the canopy cover is made by the rust-preventing aluminum alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104406 CN1023208C (en) | 1987-06-26 | 1987-06-26 | Process and equipments for treating waste liquor of red nitric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104406 CN1023208C (en) | 1987-06-26 | 1987-06-26 | Process and equipments for treating waste liquor of red nitric acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030066A CN1030066A (en) | 1989-01-04 |
| CN1023208C true CN1023208C (en) | 1993-12-22 |
Family
ID=4814861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87104406 Expired - Fee Related CN1023208C (en) | 1987-06-26 | 1987-06-26 | Process and equipments for treating waste liquor of red nitric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023208C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040345A (en) * | 2010-11-17 | 2011-05-04 | 宋洪义 | Device for converting gypsum powder in waste water |
| CN106431506B (en) * | 2016-09-13 | 2020-02-21 | 广沣金源（北京）科技有限公司 | Method for treating concentrated nitric acid-containing wastewater |
-
1987
- 1987-06-26 CN CN 87104406 patent/CN1023208C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1030066A (en) | 1989-01-04 |
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