CN100501384C - Method for real time in-situ tracking migration process of ammonium nitrogen fertilizer - Google Patents
Method for real time in-situ tracking migration process of ammonium nitrogen fertilizer Download PDFInfo
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- CN100501384C CN100501384C CNB2007100195508A CN200710019550A CN100501384C CN 100501384 C CN100501384 C CN 100501384C CN B2007100195508 A CNB2007100195508 A CN B2007100195508A CN 200710019550 A CN200710019550 A CN 200710019550A CN 100501384 C CN100501384 C CN 100501384C
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- comparison tube
- color comparison
- perlite
- nitrogen fertilizer
- fertilizer
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Abstract
This invention discloses one method to real time original trace ammonium nitrogen fertilizer transmission, which adopts nanometer agent with high accuracy and simple operations, wherein, it instantly turns to yellow to express ammonium nitrogen concentration property with pear rock as medium materials; pearl block is of silicon block with abundant minerals with ball cracks with enclosed cell structure and sparse structure in white color and small intensity.
Description
Technical field
The present invention relates to field of environment protection, specifically is a kind of method of tracking migration process of ammonium nitrogen fertilizer.
Background technology
2002, United Nations Environment Programme (UNEP) delivered " global environment prospect " report, and big G﹠W pollution deterioration is classified as first of the eight overall situation problems.The most important inducement of atmospheric pollution is greenhouse gas emission, and it mainly is that nitrogen, phosphorus etc. enter water body and cause body eutrophication that water pollutes.One studies show that, because a large amount of uses and the improper use of chemical fertilizer, China has 123.5 ten thousand tons of nitrogen to flow to rivers and lakes by the surface water river rising in Ningxia and flowing into central Shaanxi every year, and 49.4 ten thousand tons enter underground water, and 2,990,000 tons enter atmosphere.Nitrogen water body such as enters through approach such as runoff, drip washing, causes the rivers,lakes and seas eutrophication, and volatile matter is with N
2The O form enters atmosphere, causes greenhouse gases to increase.As seen, a large amount of uses of nitrogenous fertilizer have formed the solid of " from underground to aerial " and have polluted, and the loss that causes is startling.
Nitrogen source in the water body is a lot, and exogenous load and endogenous load is wherein arranged.Ectogenic nitrogen has pollution of area source and point-source pollution.Pollution of area source is mainly derived from agricultural, accounts for 70%, and point-source pollution is mainly derived from sanitary sewage and industrial waste water, and endogenous is loaded the release of nitrogen in the sediment, aquatic animals and plants metabolism is decomposed etc.Estimate according to Isermann (1990),, account for 37%～82% nitrogen in the agricultural soil and be discharged into surface water in West Europe.Nutritional surveillance to 270 rivers of Danish shows, 94% nitrogen wherein is mainly from the non-point pollution of rural activity.In China, in the period of nearest 20～30, the nitrogen that is lost to every year outside the farmland surpasses more than 1,000 ten thousand tons, about 30,000,000,000 yuan of direct economic loss.
As seen, the control loss of nitrogenous fertilizer is to reduce the matter of utmost importance that water pollutes.Accordingly, a kind of method of simple real time in-situ tracking loss of nitrogenous fertilizer dynamic process seems very important.At present, the detection technique of nitrogenous fertilizer (ammonia nitrogen) mainly contains Na Shi colourimetry, gas-phase molecular absorption spectrometry method etc., and these methods just detect the water sample of fetching, and the dynamic flow process of tracking ammonia nitrogen that can not real-time in-situ, can not satisfy people's needs.
Summary of the invention
The present invention proposes a kind of method of real time in-situ tracking migration process of ammonium nitrogen fertilizer, this method is simple, simple and clear, can assess the loss of nitrogenous fertilizer ability simultaneously for the nitrogenous fertilizer worker provides a kind of, follows the tracks of the loss approach, determine that nitrogenous fertilizer spreads the method for spatial and temporal distributions.
Technical scheme of the present invention is as follows:
The method of real time in-situ tracking migration process of ammonium nitrogen fertilizer is characterized in that carrying out following steps:
(1), is mixed with nessler reagent and potassium sodium tartrate solution according to GB (T7479-1987) method;
(2) in color comparison tube, add perlite;
(3) in color comparison tube, add, make the perlite come-up through nessler reagent and potassium sodium tartrate solution after the water dilution;
(4) get ammoniacal nitrogen fertilizer and put into the perlite top, guarantee not have in the color comparison tube red-brown precipitation to occur;
(5) ammoniacal nitrogen fertilizer place of arrival can be yellowish-brown, and its color depth is represented ammonia nitrogen concentration, thus, just can real-time in-situ ground follows the tracks of parameters such as the rate of propagation of investigating this nitrogenous fertilizer, diffusion path, diffusion concentration.
Its more specifically step be:
(1) is mixed with nessler reagent 100mL and potassium sodium tartrate solution 100mL according to GB (T7479-1987) method;
(2) in the 25ml color comparison tube, add perlite to the 25mL scale;
(3) get nessler reagent 1mL that (1) prepare and potassium sodium tartrate solution 2mL in the 50ml beaker, and add 30mL distilled water, stir;
(4) get reagent 15mL that (3) prepare in the color comparison tube of (2), make about 2cm at the bottom of the perlite distance from bottom color comparison tube that floats;
(5) take by weighing ammoniacal nitrogen fertilizer 0.05g-0.5g to be measured and put into perlite top in the color comparison tube of (4), guarantee not have in the color comparison tube red-brown precipitation to occur;
(6) ammoniacal nitrogen fertilizer place of arrival can be yellowish-brown, and its color depth is represented ammonia nitrogen concentration, thus, just can real-time in-situ ground follows the tracks of parameters such as the rate of propagation of investigating this nitrogenous fertilizer, diffusion path, diffusion concentration.
The used reagent of the present invention is nessler reagent, and compound method is seen GB (T7479-1987).This reagent sensitivity height, simple to operate, flavescence look and its color depth are represented the concentration of ammonia nitrogen, the requirement that its these character and characteristics meet agents useful for same of the present invention at once to meet ammonia nitrogen.
The used dielectric material of the present invention is a perlite.Show yellowish-brown because Na Shi solution is met ammonia nitrogen, in soil, be difficult to observe.The present invention has selected for use perlite to replace soil as medium.Perlite is the mineral matter that is formed by siliceous volcanic, has the spherical crackle of pearl shape and gains the name.This mineral matter have close close born of the same parents' columnar structure, short texture, be white in color, density is littler than water; Chemical property is stable, pH value is (PH7.5-7.0), because it has so how good character, so come the diffusion process of real time in-situ tracking ammonia nitrogen in soil with it as medium.
The dynamic flow process of the tracking ammonia nitrogen of the present invention's energy real-time in-situ, simple, simple and clear, can assess the loss of nitrogenous fertilizer ability simultaneously for the nitrogenous fertilizer worker provides a kind of, follow the tracks of the loss approach, determine that nitrogenous fertilizer spreads the method for spatial and temporal distributions.
Embodiment
A kind of method of real time in-situ tracking migration process of ammonium nitrogen fertilizer may further comprise the steps:
(1) is mixed with nessler reagent 100mL and potassium sodium tartrate solution 100mL according to GB (T7479-1987) method.
Nessler reagent: take by weighing 16g NaOH, be dissolved in the 50mL water, fully be cooled to room temperature.Other takes by weighing 7g potassium iodide and mercuric iodixde (HgI
2) water-soluble, then this solution is under agitation injected sodium hydroxide solution slowly.Be diluted with water to 100mL, store in the polyethylene bottle, close plug is preserved.
Potassium sodium tartrate solution: take by weighing 50g sodium potassium tartrate tetrahydrate (KNaC
4H
4O
64H
2O) be dissolved in the 100mL water, heated and boiled to be to remove deammoniation, puts coldly, is settled to 100mL.
(2) in the 25ml color comparison tube, add perlite to the 25mL scale.
(3) get nessler reagent 1mL that (1) prepare and potassium sodium tartrate solution 2mL in the 50ml beaker, and add 30mL distilled water, stir.
(4) get reagent 15mL that (3) prepare in the color comparison tube of (2), make about 2cm at the bottom of the perlite distance from bottom color comparison tube that floats.
(5) taking by weighing generation surveys perlite top in the color comparison tube that ammoniacal nitrogen fertilizer 0.05g-0.5g puts into (4), guarantees not have in the color comparison tube red-brown precipitation to occur.
(6) ammoniacal nitrogen fertilizer place of arrival can be yellowish-brown, and its color depth is represented ammonia nitrogen concentration.Thus, just can real-time in-situ ground follow the tracks of parameters such as the rate of propagation of investigating this nitrogenous fertilizer, diffusion path, diffusion concentration.
Claims (2)
1, the method for real time in-situ tracking migration process of ammonium nitrogen fertilizer is characterized in that carrying out following steps:
(1), is mixed with nessler reagent and potassium sodium tartrate solution according to the GB/T7479-1987 method;
(2) in color comparison tube, add perlite;
(3) in color comparison tube, add, make the perlite come-up through nessler reagent and potassium sodium tartrate solution after the water dilution;
(4) get ammoniacal nitrogen fertilizer and put into the perlite top, guarantee not have in the color comparison tube red-brown precipitation to occur;
(5) ammoniacal nitrogen fertilizer place of arrival can be yellowish-brown, and its color depth is represented ammonia nitrogen concentration, thus, just can follow the tracks of rate of propagation, diffusion path, the diffusion concentration parameter of investigating this nitrogenous fertilizer in real-time in-situ ground.
2, method according to claim 1, it is characterized in that its more specifically step be:
(1) is mixed with nessler reagent 100mL and potassium sodium tartrate solution 100mL according to the GB/T7479-1987 method;
(2) in the 25ml color comparison tube, add perlite to the 25mL scale;
(3) get nessler reagent 1mL that (1) prepare and potassium sodium tartrate solution 2mL in the 50ml beaker, and add 30mL distilled water, stir;
(4) get reagent 15mL that (3) prepare in the color comparison tube of (2), make 2cm at the bottom of the perlite distance from bottom color comparison tube that floats;
(5) take by weighing ammoniacal nitrogen fertilizer 0.05g-0.5g to be measured and put into perlite top in the color comparison tube of (4), guarantee not have in the color comparison tube red-brown precipitation to occur;
(6) ammoniacal nitrogen fertilizer place of arrival can be yellowish-brown, and its color depth is represented ammonia nitrogen concentration, thus, just can follow the tracks of rate of propagation, diffusion path, the diffusion concentration parameter of investigating this nitrogenous fertilizer in real-time in-situ ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100195508A CN100501384C (en) | 2007-01-13 | 2007-01-13 | Method for real time in-situ tracking migration process of ammonium nitrogen fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100195508A CN100501384C (en) | 2007-01-13 | 2007-01-13 | Method for real time in-situ tracking migration process of ammonium nitrogen fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101008618A CN101008618A (en) | 2007-08-01 |
| CN100501384C true CN100501384C (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100195508A Expired - Fee Related CN100501384C (en) | 2007-01-13 | 2007-01-13 | Method for real time in-situ tracking migration process of ammonium nitrogen fertilizer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621084B (en) * | 2012-03-14 | 2013-07-31 | 合肥工业大学 | Method for measuring soil ammonium nitrogen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004233325A (en) * | 2003-01-31 | 2004-08-19 | One Uiru:Kk | Sales promotion method and sales promotion kit of air-purifying product |
| US20050227369A1 (en) * | 2004-04-13 | 2005-10-13 | The Lubrizol Corporation, A Corporation Of The State Of Ohio | Rapid analysis of functional fluids |
| CN1850743A (en) * | 2006-05-18 | 2006-10-25 | 中国科学院等离子体物理研究所 | Nitrogen fertilizer solidifying method by active soil, flocculant, adsorbent composite material and fertilizer |
-
2007
- 2007-01-13 CN CNB2007100195508A patent/CN100501384C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004233325A (en) * | 2003-01-31 | 2004-08-19 | One Uiru:Kk | Sales promotion method and sales promotion kit of air-purifying product |
| US20050227369A1 (en) * | 2004-04-13 | 2005-10-13 | The Lubrizol Corporation, A Corporation Of The State Of Ohio | Rapid analysis of functional fluids |
| CN1850743A (en) * | 2006-05-18 | 2006-10-25 | 中国科学院等离子体物理研究所 | Nitrogen fertilizer solidifying method by active soil, flocculant, adsorbent composite material and fertilizer |
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| Publication number | Publication date |
|---|---|
| CN101008618A (en) | 2007-08-01 |
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Granted publication date: 20090617 Termination date: 20110113 |