CN1087880A - The treatment process of nitrite and equipment thereof in the underground drinking water - Google Patents
The treatment process of nitrite and equipment thereof in the underground drinking water Download PDFInfo
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- CN1087880A CN1087880A CN 92114001 CN92114001A CN1087880A CN 1087880 A CN1087880 A CN 1087880A CN 92114001 CN92114001 CN 92114001 CN 92114001 A CN92114001 A CN 92114001A CN 1087880 A CN1087880 A CN 1087880A
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Abstract
The present invention relates to the treatment process of nitrite in a kind of underground drinking water.Existing method has: ozone oxidation method and ion exchange method.The present invention is the liquid chlorine oxidation style, its flow process be the chlorine that discharges by chlorine cylinder under pressure water action, mix mutually with current in the water sprayer through chlorinating machine, form a small gangs of chlorine water, flow into acidproof plastics tubing simultaneously, the other end of plastics tubing extends the downhole submersible pumps place.When electric motor starting, the shallow bid chlorine water in the acidproof plastics tubing is descending, handles water with the down-hole desire and mixes, and mixed water is up along the down-hole upper hose, constitutes treatment system.Its advantage is: treatment effect is good, and treating processes is short, the level of automation height.
Description
The present invention relates to the treatment process and the equipment thereof of nitrite in a kind of underground drinking water.
Existing underground drinking water is not generally handled, but virulent water needs processing, and treatment process is a lot, just can drink after must handling for the underground drinking water that contains nitrite.
In general, nitrite content is atomic in the underground water, but because the difference of geologic framework, material composition, and the discharging of the processing of the waste of humans and animals, the use of nitrogen fertilizer in agriculture, industrial nitrogenous compound, ooze etc. phreatic pollution, make nitrite content sharp increase in the underground water of partial area, substantially exceed the hygienic standard of tap water, directly endangering the healthy of people, this is during people live one of major issue to be solved to be arranged.
Show according to medical research: the existence of a certain material or shortage in the tap water can directly influence the variation of certain disease incident.Nitrite is a kind of deleterious chemical substance, show that mainly it can make the oxidation of divalent in the haemoglobin molecule become ferric iron, form denatured hemoglobin (or methemoglobin), in normal people's red corpuscle, constantly carrying out the formation and the reduction process of denatured hemoglobin.General health people's denatured hemoglobin concentration accounts for below 20% of hemoglobin concentration, but when denatured hemoglobin concentration is 20-50%, the nitrite poisoning symptom will appear, tangible purple infantile malnutrition due to digestive disturbances or intestinalparasites promptly appears, and, overrun and the loss of consciousness as weakness, expiratory dyspnea, headache, heartbeat with the anoxic symptom; Its concentration surpasses at 50% o'clock, can cause people's death.In addition, nitrite also can react with organic amine, generates the nitrosamines material.This nitrosamines material has very strong carcinogenesis to animal, but and almost at parts of body induced tumor all.Therefore, nitrite is most important to the human lives in the improvement tap water.
The existing method of handling nitrite has:
(1) nitrite in ozone oxidation method-usefulness ozone Oxidation Treatment water.Its advantage is that the oxidation potential of ozone is more much higher than chlorine.Ozone and nitrite reaction formula are as follows:
It can guarantee to react carries out quite fully.The degradation production of ozone is an oxygen, therefore when dosage surpasses the desired quantity of technological process, in most cases causes treating water by oxygen saturation.But produce ozone cost height, this has just limited its a large amount of use on water treatment technology.For example, synthetic IKg ozone will consume the electric weight of 25KWh.
The process system of ozonize water device comprises following equipment and structures:
1. air compression plant; 2. the air degree of depth is removed the mist of oil device; 3. the one-level heat exchanger used of cooling air; 4. enter the moisture eliminator degree of depth refrigerating unit of air before; 5. ozonizer; 6. ozone exposure chamber; 7. the distribution apparatus of air ozone mixed gas; 8. monitoring setting device; 9. residual ozone removes device.
In addition, construction of ozonize station and production run expense are all quite high.For example, at Beijing the eighties initial stage, build (500g/ hour) ozonize station and need cost nearly 800,000 yuan.
Ozone must be used oxygen production at the scene, or produce from atmosphere with more common commercial production method owing to its unstable chemcial property.
Ozonizer device commonly used has plate electrode and vitreous insulating material or cylindrical electrode and insulating material.Ozone has off-odor, because its oxidisability is strong, makes parts perishable, leaks contaminate environment.It is 60 μ g/M that the atomosphere quality standard threshold concentration is recommended by the World Health Organization " WHO "
3
(2) nitrite in ion exchange method-usefulness ion exchange treatment water.Its advantage is 1. can expect its effect; 2. be subjected to influence of temperature change less; 3. treatment process easily is automated.
Its weak point is: 1. the ionic concn when exchange surpasses one regularly, and the application of ion exchange method just is subjected to certain limitation; 2. consume a large amount of chemical regenerant, so that exchanger recovers original state and uses for continuous; 3. produce a large amount of regenerator waste liquids in the operation, if suitably do not handle, will contaminate environment; 4. present employed most of ion-exchanger all belongs to the selectivity exchanger, is not single-minded exchanger, and promptly exchanger is all removed some harmless ion with the ion that will remove from solution in ion exchange process.The exchanger capacity is descended, influenced the utilization ratio of resin; 5. contain a large amount of muriates or oxyhydroxide in the water after handling, also need to carry out secondary treatment; 6. equipment is complicated, the cost height, and its expense is not less than 10 times of chloridized expenses.
The objective of the invention is to propose a kind of method and equipment thereof that is used for handling the underground drinking water nitrite.
The reaction formula of treatment process is as follows:
Chlorine and water effect produce a kind of strong oxidizer-hypochlorous acid, and it is the nitrite in the oxidizing water rapidly, generates harmless nitrate and chlorion at last.Reach the purpose of nitrite in the treating water.
The object of the present invention is achieved like this: the processing technological flow of nitrite is that the chlorine that discharged by chlorine cylinder is under the effect of pressure water in the underground drinking water of the present invention, mixed mutually through chlorinating machine with the current in the water sprayer, form a small gangs of chlorine water, flow into acidproof plastics tubing simultaneously, the other end of plastics tubing extends the downhole submersible pumps place.When the water supply electric motor starting, the shallow bid chlorine water in the acidproof plastics tubing is descending, handles water with the down-hole desire and mixes, and mixed water is up along the down-hole upper hose, constitutes treatment system.
Advantage of the present invention is: 1. treatment effect is good, and chlorine has very strong oxidation capacity, and nitrite oxidation makes its content decline≤0.06mg/L effectively, meets the GB3838-88 standard; 2. finish because of reacting instantaneous, so treating processes is short; 3. because this process using chlorinating machine, so the level of automation height, and can eliminate the harm that shutdown for some reason causes chlorine.
Accompanying drawing of the present invention has:
The processing technological flow synoptic diagram of nitrite in Fig. 1 underground drinking water
Below in conjunction with drawings and Examples the present invention is further described.
From underground drinking water in the processing technological flow synoptic diagram of nitrite as can be seen, treatment facility is made up of chlorine cylinder 1, chlorinating machine 2, water sprayer 3, vacuum breaker 4, submersible pump 5, motor 6, acidproof plastics tubing 7, down-hole upper hose 8 and copper tube 10 etc.The chlorine that discharges by chlorine cylinder 1,, under the pressure effect of water pressure, can buy through copper tube 10 by chlorinating machine 2(market) mixed mutually with the current in the water sprayer 3, form a small gangs of chlorine water, flow into acidproof plastics tubing 7 simultaneously, the other end of acidproof plastics tubing 7 extends downhole submersible pumps 5 places.When 6 startings of water supply motor, the shallow bid chlorine water of acidproof plastics tubing 7 is descending, handles water with the down-hole desire and mixes, and mixed water is up along down-hole upper hose 8, constitutes treatment system.
The steel cylinder 1 that chlorine is housed is connected with chlorinating machine 2 by copper tube 10.By the pressure water import that the pressure water in the vacuum breaker 4 rear portion water pipes enters chlorinating machine 2, open the chlorine passage in the chlorinating machine 2, chlorine is dissolved in the current in the water sprayer 3 by the suction opening (11) of water sprayer 3, forms a small gangs of chlorine water.This shallow bid chlorine water enters acidproof plastic flow tube to the down-hole, handles water with the down-hole desire and mixes, and mixed water is up along the upper hose 8 of down-hole, reaches the purpose of handling nitrite.Hydraulic pressure disappears when motor 6 stop, and the chlorine passage in the chlorinating machine is closed automatically.Opening or closing of chlorine passage controlled by the startup or the stop of water supply motor 6 fully, constitutes automatically system for handling continuously.
Claims (2)
1, the treatment process of nitrite in a kind of underground drinking water has ozone oxidation method and ion exchange method usually, the invention is characterized in: adopt the liquid chlorine oxidation style, its reaction formula is as follows:
Chlorine and water effect produce a kind of strong oxidizer--hypochlorous acid, and the nitrite in the oxidizing water generates harmless nitrate and chlorion.
2, the treatment facility of nitrite in a kind of underground drinking water, it is characterized in that equipment is by chlorine cylinder 1, chlorinating machine 2, water sprayer 3, vacuum breaker 4, submersible pump 5, motor 6, acidproof plastics tubing 7, down-hole upper hose 8 and copper tube 10 are formed, the chlorine that discharges by chlorine cylinder 1, through copper tube 10 under the pressure effect of water pressure, mixed mutually by chlorinating machine 2 with the current in the water sprayer 3, form a small gangs of chlorine water, flow into acidproof plastics tubing 7 simultaneously, the other end of acidproof plastics tubing 7 extends downhole submersible pumps 5 places, when 6 startings of water supply motor, the shallow bid chlorine water of acidproof plastics tubing 7 is descending, handling water with the down-hole desire mixes, mixed water is up along down-hole upper hose 8, constitutes treatment system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114001 CN1087880A (en) | 1992-12-07 | 1992-12-07 | The treatment process of nitrite and equipment thereof in the underground drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114001 CN1087880A (en) | 1992-12-07 | 1992-12-07 | The treatment process of nitrite and equipment thereof in the underground drinking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1087880A true CN1087880A (en) | 1994-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92114001 Pending CN1087880A (en) | 1992-12-07 | 1992-12-07 | The treatment process of nitrite and equipment thereof in the underground drinking water |
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| Country | Link |
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| CN (1) | CN1087880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531253A (en) * | 2012-03-06 | 2012-07-04 | 中国海洋大学 | Method and process for implementing resource utilization of nitrate-polluted underground water |
| CN104843898A (en) * | 2014-12-03 | 2015-08-19 | 重庆摩尔水处理设备有限公司 | High-strontium natural mineral water purifying system |
-
1992
- 1992-12-07 CN CN 92114001 patent/CN1087880A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531253A (en) * | 2012-03-06 | 2012-07-04 | 中国海洋大学 | Method and process for implementing resource utilization of nitrate-polluted underground water |
| CN104843898A (en) * | 2014-12-03 | 2015-08-19 | 重庆摩尔水处理设备有限公司 | High-strontium natural mineral water purifying system |
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| WD01 | Invention patent application deemed withdrawn after publication |