CN107176672A - A kind of ammonia nitrogen removal agent and preparation method thereof - Google Patents
A kind of ammonia nitrogen removal agent and preparation method thereof Download PDFInfo
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- CN107176672A CN107176672A CN201710420774.3A CN201710420774A CN107176672A CN 107176672 A CN107176672 A CN 107176672A CN 201710420774 A CN201710420774 A CN 201710420774A CN 107176672 A CN107176672 A CN 107176672A
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- 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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
The invention belongs to technical field of sewage, and in particular to a kind of ammonia nitrogen removal agent, including following components in parts by weight：17 parts~27 parts of sym-closene, 2 parts~4 parts of calcium chloride, 1.5 parts~2.5 parts of magnesium chloride, 3 parts~8 parts of sodium acid carbonate, 15 parts~25 parts of calcium carbonate.The present invention also provides the preparation method of the ammonia nitrogen removal agent.Ammonia nitrogen removal agent prepared by the present invention, can effectively remove the remaining ammonia nitrogen in Low Concentration Ammonia Containing Wastewater, and removal efficiency is high, to the ammonia nitrogen degradation rate in sewage up to more than 95%, ammonia-nitrogen content in water can be down into below 5mg/L, meet environmental requirement.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of ammonia nitrogen removal agent and preparation method thereof.
Background technology
Nitrogen is in waste water with molecular nitrogen, organic nitrogen, ammoniacal nitrogen, nitrate nitrogen, nitrite nitrogen and rhodanide and cyanogen
The diversified forms such as compound are present, and ammonia nitrogen is one of topmost existence form.
Ammonia nitrogen refers in water with free ammonia (NH3) and ammonium ion (NH4+) form exist nitrogen.Animality organic matter it is nitrogenous
Amount is height typically compared with vegetalitas organic matter.Meanwhile, itrogenous organic substance is very unstable in human and animal excreta, is readily decomposed to ammonia.Ammonia nitrogen
It is present in many task industry waste water, ammonia nitrogen is discharged into water body, particularly flows more slow lake, bay, easily cause in water
Algae and other microorganism amount reproductions, form eutrophication pollution, except water treatment plants operation can be made difficult, cause drink
With outside the peculiar smell of water, it can decline oxygen in water when serious, fish mortality results even in the dry destruction in lake.
Therefore, ammonia-nitrogen content increases the chemical combination ammonia referred to ammonia or the presence of ammonium ion form in water.During ammonia nitrogen is water body
Nutrient, can cause water eutrophication phenomenon to produce, be the main oxygen consumption pollutant in water body, to fish and some aquatiles
It is toxic.The blue-green algae pollution of Taihu Lake outburst in 2007 is exactly typical ammonia and nitrogen pollution event.On May 16th, 2007, plum beam lake water
Qualitative change is black；22, water factory stopped supplying water in voe；25, tribute lake water factory water quality still met water supply requirement；28 days, Gong Hushuichang
Water head site water quality severe exacerbation, water source stench, water quality blacks, and dissolved oxygen drops to 0 milligrams per liter, and ammonia nitrogen index rises to 5 millis
Gram per liter, resident's running water stink is serious.
Ammonia nitrogen also makes water disinfection and industrial circulating water sterilisation process increase chlorine dosage；To some metals, especially
It is that there is corrosivity to copper；When reusing sewage, ammonia nitrogen can promote microorganism in aqueduct and water equipment in recycled water
Breeding, form biofouling, block pipeline and water equipment, and influence heat exchange efficiency.
Removing the main method of ammonia nitrogen at present has：Physical, chemical method, bioanalysis.Physical is containing counter-infiltration, distillation, soil
The treatment technologies such as earth irrigation；Chemical method is containing ion exchange, ammonia aeration, break point chlorination, burning, chemical precipitation, promotion cracking, electric osmose
The treatment technologies such as analysis；Bioanalysis is containing treatment technologies such as algal culture, biological nitration, immobilized biotechnologies.These above-mentioned ammonia nitrogens
Mainly there be practical method in processing method：Break point chlorination method, selective ion exchange method, ammonia aeration method, bioanalysis with
And chemical precipitation method (MAP).The reaction of break point chlorination method is as follows：NH4++1.5HOCl→0.5N2+1.5H2O+2.5H++1.5Cl-
Treatment effect in actual process is unable to reach theoretic treatment effect, and when ammonia nitrogen concentration is reduced to a certain degree
Continue to remove ammonia nitrogen, its added amount of chemical can be greatly increased, and processing cost will be greatly promoted, and react to pH value requirement very
Height, pH controls are the difficult points of break point chlorination；The restricted application of ion-exchange, requires higher to influent quality, and behaviour
Make complicated, intractability is bigger, easily forms secondary pollution；Ammonia aeration method is the effective of effective processing high-concentration ammonia nitrogenous wastewater
Method, but current stripping technology by ammonia nitrogen removal to after to a certain degree, be just difficult to continue to reduce the concentration of ammonia nitrogen, all the time not
Ammonia nitrogen may disposably be handled to up to standard；Bioanalysis mainly uses microorganism a series of anti-by ammonification, nitrification, denitrification etc.
The ammonia nitrogen in waste water should be made to be eventually converted into harmless nitrogen discharge, treatment effect is higher, if but ammonia nitrogen concentration is too high in waste water
Then it is unfavorable for the progress of biochemical treatment, and the biochemical system stability in actual motion is not high, situation not up to standard often occurs,
And with the raising of discharge standard, the processing water outlet of biological treatment will reach that new discharge standard is accomplished by further expansion
Hold, substantial amounts of civil engineering and coordinative composition of equipments are carried out for a small amount of ammonia nitrogen removal, is economically difficult to bear；And change
The removal effect that the precipitation method (MAP) are learned to ammonia nitrogen in high density is preferable, when ammonia nitrogen concentration is down to tens milligram hours of every liter of water, passes through
It is to be difficult to continue to reduce the ammonia nitrogen concentration in waste water to add medicament.
Treatment technology in summary and method, as country is improved ammonia nitrogen concentration emission limit to 8mg/ by 15mg/L
L requirement, these methods effectively handle the residual ammonia values of nitrogen might after ammonia nitrogen waste water to a certain extent, and often still higher than discharge will
Ask, and the ammonia nitrogen concentration of this portion of residual is often less, and investment construction advanced treating is increased for the ammonia nitrogen of this portion of residual
Technique is uneconomical feasible.And due to the difference on different wastewater properties, we must be directed to the property of different industrial wastewaters
Matter, and composition contained by it go deep into systematic research, selection and determine treatment technology and its technique.At present, it is most of
The waste water of company is after preliminary treatment, and ammonia nitrogen is all without too high, in 20~80mg/L or so, to make this part ammonia nitrogen reduction
It is even lower to below 10mg/L, it is necessary to add more efficient except ammonia nitrogen medicament is handled, just ammonia nitrogen can be made to reach national row
Put standard.
Chinese patent CN201510792107.9 discloses a kind of water treatment agent for quick removal ammonia nitrogen of knowing clearly, by following weight
The component of part is formulated：30~45 parts of sym-closene, 15~25 parts of potassium chlorate, 35~50 parts of solid chlorine dioxide.Will
The water treatment agent is applied in wastewater treatment, can preferably play the synergy between oxidant, and ammonia nitrogen removal speed is fast.Should
Inorganic agent ammonia nitrogen removal efficiency in scheme reaches 94%, however, every 1000 milliliters of sewage is, it is necessary to expend inorganic agent 30g, consumption
Larger, cost is higher, and reaction efficiency is not high enough；The processing procedure used time, effect was not quick enough more than 30 minutes, and after reaction
Water sample is in highly acid, it is not possible to which directly discharge is, it is necessary to neutralisation treatment.
In consideration of it, exploitation is more efficient, economical, stably, reaction speed is fast, and the few ammonia nitrogen removal agent of consumption has important warp
Ji value and social value.
The content of the invention
For ammonia nitrogen removal agent in the prior art, removal effect is not thorough, time-consuming long during removal ammonia nitrogen, or
Removal effect is influenceed greatly by pH, and uses the problems such as equipment is complicated, and the present invention provides a kind of ammonia nitrogen removal agent, and it removes ammonia nitrogen
More thoroughly, it is more efficient, it is swift in response, application method is easy and consumption is few.
The present invention provides following technical scheme：
A kind of ammonia nitrogen removal agent, including following components in parts by weight：
17 parts~27 parts of sym-closene,
2 parts~4 parts of calcium chloride,
1.5 parts~2.5 parts of magnesium chloride,
3 parts~8 parts of sodium acid carbonate,
15 parts~25 parts of calcium carbonate.
Further, in the component of ammonia nitrogen removal agent of the present invention, in addition to sierozem power in parts by weight
25 parts~35 parts.
Further, ammonia nitrogen removal agent of the present invention, is made up of following component in parts by weight：
20 parts~24 parts of sym-closene,
2 parts~4 parts of calcium chloride,
1.5 parts~2.5 parts of magnesium chloride,
4 parts~6 parts of sodium acid carbonate,
18 parts~22 parts of calcium carbonate,
8 parts~12 parts of sierozem power.
Further, ammonia nitrogen removal agent of the present invention, is made up of following component in parts by weight：
22 parts of sym-closene,
3 parts of calcium chloride,
2 parts of magnesium chloride,
5 parts of sodium acid carbonate,
20 parts of calcium carbonate,
10 parts of sierozem power.
Ammonia nitrogen removal agent of the present invention is mainly reacted in the solution using the sym-closene in ammonia nitrogen removal agent
Produce ClO-、ClO2、Cl2Ammonia nitrogen is converted into nitrogen and separated from water by the strong oxidation Deng oxidant.
Main component in ammonia nitrogen removal agent is sym-closene, and it constantly produces strong oxidizer to ammonia nitrogen in water
Handled, strong oxidizer is constantly aoxidized so that ammonia nitrogen is finally converted in the case where promoting the catalytic action of composition to ammonia nitrogen
For nitrogen.
Calcium carbonate belongs to adjuvant, Cl that can be to be produced during adsorption reaction-, promote reaction to positive direction, that is, produce
ClO2Direction carry out, produce oxidant and increase, so that accelerated oxidation agent is acted on the oxidation removal of ammonia nitrogen.Sierozem power belongs to auxiliary
Co-ingredients, main function is that the sulfide in water body is degraded, with sulphur removal effect.In addition, calcium carbonate and sierozem power are also
Clean-up effect can be improved with the sedimentation of accelerating solid product, adsorbent solid pollutant.
Sodium acid carbonate is mainly used for the acid-base property of regulating agent, and being in waste water the ionic state of ammonia nitrogen and molecular state has
Beneficial to the distribution state of oxidation；Also there is peptizaiton.The main function of calcium chloride and magnesium chloride is so that ammonia nitrogen removal agent exists
Not deliquescence during sealing preserve, it is ensured that the stabilization of ammonia nitrogen removal agent active ingredient, prevents ammonia nitrogen removal agent from being stored in transport
Occur in journey rotten.In addition, also having certain chelation, promote cured product sedimentation.By adding auxiliary element carbonic acid
Hydrogen sodium, calcium carbonate, sierozem power, the collective effect of calcium chloride and magnesium chloride so that the efficiency of ammonia nitrogen removal agent is greatly carried
Rise, in same sym-closene usage amount, remove ammonia nitrogen efficiency more preferably, effect is more preferable；Imitated in same removal ammonia nitrogen
During fruit, it is only necessary to 1/3rd primary oxidant sym-closene, medicament usage amount is reduced.
On the other hand, present invention also offers the preparation method of described ammonia nitrogen removal agent, it is comprised the steps of：
(1) weigh in the calcium carbonate of formula ratio, input solid mixer, design temperature is 80 DEG C, starts stirring；
(2) sierozem power of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(3) sym-closene of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(4) calcium chloride of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(5) magnesium chloride of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(6) sodium acid carbonate of formula ratio is weighed, is put into above-mentioned mixer, is stirred until homogeneous, then proceedes to heating stirring
20 minutes to 1 hour；
(7) by the feedstock transportation mixed into storage device, and it is distributed into suitable subpackage dress.
Further, in the preparation method of ammonia nitrogen removal agent of the present invention, each raw material used in its preparation, rule
Lattice are content more than 90%, the mesh of the mesh of granular size 300~400.
The ammonia nitrogen removal agent composition of the present invention is simple, and raw material are economical and easily available, and processing prepares simple, and cost is low, is easy to production
Industry metaplasia is produced.
Compared with prior art, beneficial effects of the present invention are：
1st, the ammonia nitrogen removal agent that the present invention is provided, has gathered the treatment technologies such as advanced oxidation, reaction sedimentation, absorption, can have
Effect removes the remaining ammonia nitrogen in Low Concentration Ammonia Containing Wastewater, and removal efficiency is high, to the ammonia nitrogen degradation rate in sewage up to 95% with
On, ammonia-nitrogen content in water can be down to 2mg/L or so, the ammonia nitrogen in water body can thoroughly be removed substantially, meet environmental requirement.
2nd, the ammonia nitrogen removal agent that the present invention is provided, reaction speed is fast, can be basically completed course of reaction, phase within 5 minutes or so
Compared with traditional biochemical techniques remove ammonia nitrogen need more than 12 hours it is even more long, very efficiently.
3rd, the ammonia nitrogen removal agent that the present invention is provided, suitable water pH value range is that 1~12, pH uses in extensive range, Ji Huke
It is applicable the sewage disposal with all categorys of employment, e.g., ink, packages printing, auto parts machinery, machinery, spray painting, surface treatment, painting
Material, paint, plating, papermaking, food, print and dye, bleaching and dyeing, the waste water treatment process such as process hides；Printing and dyeing mill's waste liquid etc..Ammonia nitrogen removal agent medicine
Agent is nontoxic or low-toxic agent, will not produce secondary pollution to waste water, is particularly suitable for use in constitution transformation of sewage treatment plant etc.
Engineering, can also replace disinfectant to be used for disinfecting for sewage disposal water outlet.
4th, the ammonia nitrogen removal agent that the present invention is provided, it is easy to add and use, not only can dry powder with good operability
Mode is directly added in reaction tank, can also by medicament configuration into add after solution with reaction tank, for example, 1/100 (m/m)
Add water after punching is converted and add；It can directly add in general reaction tank, be not required to special reaction equipment.
5th, the ammonia nitrogen removal agent that the present invention is provided, consumption is few, and general every liter of sewage, addition has obvious effect in 5g or so
Really, and handle after water body can keep clean-up effect, if continuous processing, can further reduce consumption, it is cost-effective.
6th, the ammonia nitrogen removal agent that the present invention is provided belongs to Combined sewage purifying agent, has gathered advanced oxidation, reaction
Sedimentation,
Absorption etc. remove ammonia nitrogen principle, can by the ammonia nitrogen in sewage simultaneously from water body fast decoupled, to biochemical treatment
Can not be up to standard
Enterprise, be the exceeded preferable Waste water treatment medicament of ammonia nitrogen.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below in conjunction with accompanying drawing to skill
Art scheme is briefly described.
Fig. 1 is ammonia nitrogen removal agent consumption of the present invention and ammonia-nitrogen content and degradation rate relation line chart.
Fig. 2 is the relation line chart that ammonia nitrogen removal agent consumption of the present invention changes with pH.
Fig. 3 is using the relation line chart after ammonia nitrogen removal agent of the present invention between ammonia-nitrogen content and degradation rate and time.
Fig. 4 is using the relation line chart after ammonia nitrogen removal agent of the present invention between pH value and time.
Embodiment
Reach technological means and effect that predetermined purpose is taken for the present invention is expanded on further, it is right with reference to embodiments
The embodiment and its effect of the present invention, is described in detail as follows.For those of ordinary skill in the art, do not paying
On the premise of creative labor, other suitable embodiments can also be obtained according to these embodiments.
Raw material sym-closene, calcium chloride, magnesium chloride, sodium acid carbonate, calcium carbonate and sierozem power used in preparation
It is that market purchasing is obtained, specification is content more than 90%, the mesh of the mesh of granular size 300~400.
Embodiment 1：The preparation of ammonia nitrogen removal agent
Weigh sym-closene 22kg respectively, calcium chloride 3kg, magnesium chloride 2kg, sodium acid carbonate 5kg, calcium carbonate 20kg and
Sierozem power 10kg.
Preparation method is as follows：
(1) weigh in the calcium carbonate of formula ratio, input solid mixer, design temperature is 80 DEG C, starts stirring；
(2) sierozem power of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(3) sym-closene of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(4) calcium chloride of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(5) magnesium chloride of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(6) sodium acid carbonate of formula ratio is weighed, is put into above-mentioned mixer, is stirred until homogeneous, then proceedes to heating stirring
20 minutes to 1 hour, mixing time can carry out accommodation according to inventory.
(7) by the feedstock transportation mixed into storage device, the specification of setting subpackage dress, general packing setting Bao Installed weights
Dust is carried out into centralized recovery using extract system in amount 25kg/ bags, packaging process to reuse.
General packing is packed 20~25kg using kraft paper bag and often wrapped.
The ammonia nitrogen removal agent physical behavior prepared is as follows：The partially yellow powder particle of white in appearance, 235 DEG C of fusing point~
258 DEG C, relative density：2.3g/cm3~2.5g/cm3。
Embodiment 2：The preparation of ammonia nitrogen removal agent
Sym-closene 17kg, calcium chloride 2kg, magnesium chloride 1.5kg, sodium acid carbonate 3kg, calcium carbonate 15kg are weighed respectively
With sierozem power 8kg；Fed, prepared according to the methods described of embodiment 1.
Embodiment 3：The preparation of ammonia nitrogen removal agent
Sym-closene 27kg, calcium chloride 4kg, magnesium chloride 2.5kg, sodium acid carbonate 8kg, calcium carbonate 25kg are weighed respectively
With sierozem power 12kg；Fed, prepared according to the methods described of embodiment 1.
Embodiment 4：The preparation of ammonia nitrogen removal agent
Sym-closene 20kg, calcium chloride 2kg, magnesium chloride 1.5kg, sodium acid carbonate 4kg, calcium carbonate 18kg are weighed respectively
With sierozem power 8kg；Fed, prepared according to the methods described of embodiment 1.
Embodiment 5：The preparation of ammonia nitrogen removal agent
Sym-closene 24kg, calcium chloride 4kg, magnesium chloride 1.5kg, sodium acid carbonate 6kg, calcium carbonate 22kg are weighed respectively
With sierozem power 11kg；Fed, prepared according to the methods described of embodiment 1.
Embodiment 6：The preparation of ammonia nitrogen removal agent
Sym-closene 25kg, calcium chloride 3kg, magnesium chloride 2.5kg, sodium acid carbonate 5kg, calcium carbonate 20kg are weighed respectively
With sierozem power 9kg；Fed, prepared according to the methods described of embodiment 1.
The ammonia nitrogen removal agent composition of the present invention is simple, and raw material are economical and easily available, and processing prepares simple, and cost is low, is easy to production
Industry metaplasia is produced.
Embodiment 7：The use of ammonia nitrogen removal agent
1st, laboratory experiment method
Method is as follows：Take 1000mL waste water；The ammonia nitrogen removal agent of the preparation of the embodiment of the present invention 1 is added, dosage is from 0.5g
Start, increase 0.5g every time, be gradually increased to 9g, stirring is added every time 10~15 minutes or so, allow medicament fully to react；Utilize
Filter paper is filtered, ammonia-nitrogen content in the water sample water intaking analysis water-like after processing, detects detection knot during different ammonia nitrogen removal agent consumptions
Really, pH situations of change and are monitored simultaneously, and experimental result is as shown in table 1, and draws line chart respectively.Ammonia nitrogen removal agent consumption and ammonia
Nitrogen content and degradation rate relation are as shown in Figure 1；Ammonia nitrogen removal agent consumption and the relation that pH changes are as shown in Figure 2.
1000mL waste water is taken, the ammonia nitrogen removal agent of the preparation of the embodiment of the present invention 1 is added, ammonia nitrogen removal agent consumption is 5g/L,
Stand to 15 minutes, 30 minutes, 1 hour, 5 hours, 1 day, 3 days, 1 week, each time point takes the water sample after same processing to enter water-filling
Sample is analyzed, and is filtered using filter paper, ammonia-nitrogen content, detection during detection different time points in the water sample water intaking analysis water-like after processing
As a result, pH situations of change are monitored and simultaneously, and experimental result as shown in table 2, draws line chart respectively.Ammonia-nitrogen content and degradation rate with
Relation line chart between time is as shown in Figure 3；The relation line chart that pH changed between the time is as shown in Figure 4.
Table 1：Result of Ammonia Nitrogen Examination and pH situations of change during different ammonia nitrogen removal agent consumptions
| Ammonia nitrogen removal agent consumption (g/mL) | Ammonia-nitrogen content (mg/L) | Degradation rate % | PH changes |
| Raw water | 66.129 | 0.00% | 8.53 |
| 0.5/1000 | 60.989 | 7.77% | 8.93 |
| 1/1000 | 52.558 | 20.52% | 8.98 |
| 2/1000 | 38.828 | 41.28% | 9.79 |
| 3/1000 | 28.128 | 57.46% | 9.88 |
| 5/1000 | 2.475 | 96.26% | 10.11 |
| 7/1000 | 2.118 | 96.80% | 10.46 |
| 9/1000 | 2.106 | 96.82% | 10.59 |
From table 1 and Fig. 1, the initial ammonia-nitrogen content 66mg/L of water sample, when adding ammonia nitrogen removal agent 5g of the present invention, water sample
Middle ammonia-nitrogen content can be down to below 5mg/L, and degradation rate is more than 95%.Continue to increase ammonia nitrogen removal agent consumption, ammonia-nitrogen content still may be used
Further reduction, finally when injected volume reaches 9g, ammonia-nitrogen content can be down to 2mg/L, and degradation rate is reached close to 97%.Therefore,
The consumption of every liter of water sample ammonia nitrogen remover is in 5g~9g, and with good ammonia nitrogen removal effect, ammonia-nitrogen content can be down to 5mg/L
Hereinafter, degradation rate reaches 95%~100%.
From table 1 and Fig. 2, the initial pH value of water sample is about 8.5, and with the increase of ammonia nitrogen removal agent consumption, pH value is slow
Rise, when addition is 5g, pH value is 10.1, and in maximum dosage 9g, pH value is 10.6；It is known that the ammonia of the present invention
Nitrogen remover can slowly lift pH value, but can't significantly change the pH value of water sample, and the pH for removing water sample after ammonia nitrogen exists substantially
Alkalescent is to medium basic.Relative to the conventional ammonia nitrogen removal agent using sym-closene as main water composition, it is removed
Ammonia nitrogen is more efficient, and the sewage of unit quantity, consumption is smaller, with significant economic advantages.
Table 2：Result of Ammonia Nitrogen Examination and pH testing results during different time points
Added in table 2 and Fig. 3, water sample according to 5/1000 (g/mL) consumption after ammonia nitrogen removal agent, at first 5 minutes
Interior, reaction speed is exceedingly fast, and ammonia nitrogen degradation rate 96%, ammonia-nitrogen content has fallen to 2mg/L or so, changes over time and continues afterwards
Slow to decline, degradation rate is up to 97% after one week；Ammonia-nitrogen content has fallen to below 2mg/L, illustrates the ammonia nitrogen removal agent of the present invention
In 5 minutes can fundamental reaction completely, reaction speed is very fast, better than existing ammonia nitrogen removal agent, and after the completion of reacting,
Oxidation effectiveness can continue to play, and will not rebound.
From table 2 and Fig. 4, the initial pH value of water sample is about 8.5, and after ammonia nitrogen removal agent is added, pH value slowly rises, and is added
After 5 minutes, that is, fundamental reaction it is complete when, pH value be 9.8 or so, hereafter, pH value changes over time and slowly raises change
Change, but maintain pH value always in the range of 10~11；Slowly carried it is known that the ammonia nitrogen removal agent of the present invention has to pH
Effect is risen, the water sample pH value after being handled using the ammonia nitrogen removal agent of the present invention can be maintained between 10~11, be medium alkali
Property.
Embodiment 8：Ammonia nitrogen removal agent is in sewage disposal onsite application method and effect
The ammonia nitrogen removal agent of the present invention needs to regard the content situation adjustment of live raw water under continuous service condition, using can
Following two schemes are selected to carry out：
Scheme one：Express method, for the pond of selected dispensing reaction, calculates its good volume, will according to suitable chemical feeding quantity
Solid chemicals are uniformly dispersed in each position of reaction tank.
Scheme two：Middling speed method, in the position chosen, is added solid chemicals with 1/100 (m/m) according to suitable chemical feeding quantity
Water punching is added after converting.
Ammonia nitrogen removal agent prepared by Example 1~6 respectively, and different ammonia-nitrogen contents sewage, ammonia in every group of sewage
The dosage of nitrogen remover is every liter of sewage 5g, and the stirring reaction time is 10 minutes.Ammonia nitrogen index in waste water before and after the processing
Such as table 3 below：
Ammonia nitrogen removal agent prepared by Example 1~6 respectively, and different ammonia-nitrogen contents sewage, dosage is every liter
Sewage 5g, the reaction time is 15 minutes.Same waste water is compared using break point chlorination, and the amount for adding sodium hypochlorite is
Every liter of water 150g, 30 minutes reaction time.Ammonia nitrogen index such as table 3 below in waste water before and after the processing：
Table 3：Ammonia nitrogen waste water result
It can see by the result of the test of above-mentioned table 3, the ammonia nitrogen removal agent that the present invention is provided can be removed efficiently in waste water
Ammonia-nitrogen content in water, to the ammonia nitrogen degradation rate in sewage up to more than 98%, can be down to close to 0mg/L by ammonia nitrogen, substantially can be by
Ammonia nitrogen in water body is thoroughly removed, the current ammonia nitrogen removal agent of customer service, reduces ammonia nitrogen halfway defect.Reaction speed is fast, and 5
Course of reaction can be completed within~10 minutes, reaction speed is fast, more than 12 hours are needed compared to ammonia nitrogen traditional biochemical techniques are removed
Even more long, very efficiently.The ammonia nitrogen removal agent of the present invention also has pH castering actions, and the ammonia nitrogen removal agent using the present invention is entered
Water sample pH value after row processing can be maintained between 10~11.
In addition, the ammonia nitrogen removal agent of the present invention is highly susceptible to adding and used, with good operability, it can not only do
Powder mode is directly added in reaction tank, can also by medicament configuration into add after solution with reaction tank, can directly add in
In general reaction tank or clear water reserviors, special reaction equipment is not required to.
Embodiment 9：The ammonia nitrogen removal agent of the present invention handles optimal addition environment during different water samples
The ammonia nitrogen removal agent that the present invention is provided, suitable water pH value range be 1~12, pH using in extensive range, be applicable to
The sewage of nearly all category of employment, e.g., ink, packages printing, auto parts machinery, machinery, spray painting, surface treatment, coating, oil
Paint, plating, papermaking, food, print and dye, bleaching and dyeing, the waste water treatment process such as process hides；Printing and dyeing mill's waste liquid etc..Ammonia nitrogen removal agent is nontoxic
Medicament, will not produce secondary pollution to waste water, be particularly suitable for use in the engineerings such as the constitution transformation of sewage treatment plant, can also replace sterilization
Agent is used for disinfecting for sewage disposal water outlet.
The ammonia nitrogen removal agent of the present invention regard pending raw water quality addition environment add it is better, at biochemical
Reason, it is desirable to added after biochemical treatment better.The present invention takes ink, plating, the different sewage water sample in chemical plant, carries out
Contrast experiment, specific method be the same as Example 8 finds different water samples according to experimental result, and ring is added with different optimal pHs
Border.
1st, the main main ammonia nitrogen of PCB sewage derives from alkaline etching liquid or chemical nickel-plating liquid, when being mixed into composite wastewater pond
After sewage, the pH of water body up to more than 11, can after flocculation sediment pH value be 9.5~10 when ammonium addition remover.Reason is this
The alkaline etching liquid or chemical nickel-plating liquid of industry originally belong to the waste water of strong basicity or neutral meta-acid, are that the ammonia nitrogen of high content comes
Source, need to carry out big portion by blow-off method (add piece alkali or liquid caustic soda is handled to pH value to more than 12, by part ammonia nitrogen removal)
The ammonia nitrogen degradation divided, now between pH value about 10~12, ammonia-nitrogen content control adds the ammonia of the present invention in below 200mg/L
Nitrogen remover is thoroughly degraded remaining ammonia nitrogen.
2nd, the raw water that chemical plant sewage is produced in production process is added after handling (biochemical treatment) through original system, its
PH value can add for 8~9.Reason is that the waste water majority of chemical industry is organic matter ammonia-nitrogen content matter, and its raw water pH environment is about
In neutral meta-alkali, now directly carry out input ammonia nitrogen removal agent and organic ammonia nitrogen substances are subjected to decomposition degraded.
3rd, when hardware electroplating sewerage removes ammonia nitrogen, pH value can add for 6~7.Reason is ammonia nitrogen main source in waste water
Organic polishing material is being electroplated, raw water pH environment is neutral meta-acid, same direct progress input ammonia nitrogen removal agent participates in reaction, will
Organic ammonia nitrogen substances carry out decomposition degraded.
Experiment determines the optimal addition pH environment of the sewage of separate sources above, and this hair is added in the environment of optimum
Bright ammonia nitrogen removal agent, can reach optimal ammonia nitrogen removal effect.
The present invention ammonia nitrogen removal agent on the premise of the continuous use of client, general processing cost about in 2~3 yuan/ton of water,
Some client's use cases, less than 1 yuan/ton water (dye house effluents) of its processing cost；Have been applied in more than 10 kinds of industry at present
Sewage disposal case, its ammonia nitrogen degradation rate has more than 90%.
When the ammonia nitrogen removal agent of the present invention is used in composite wastewater handling process, it most preferably delivers opportunity in flocculation
Before the final settling tanks of (PAC or PAM).
The ammonia nitrogen removal agent that the present invention is provided belongs to Combined sewage purifying agent, has gathered advanced oxidation, reaction and has sunk
Drop, absorption etc. remove ammonia nitrogen principle, can by the ammonia nitrogen in sewage simultaneously from water body fast decoupled, biochemical treatment can not be reached
Target enterprise, is the exceeded preferable Waste water treatment medicament of ammonia nitrogen.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (6)
1. a kind of ammonia nitrogen removal agent, including following components in parts by weight：
17 parts~27 parts of sym-closene,
2 parts~4 parts of calcium chloride,
1.5 parts~2.5 parts of magnesium chloride,
3 parts~8 parts of sodium acid carbonate,
15 parts~25 parts of calcium carbonate.
2. ammonia nitrogen removal agent according to claim 1, it is characterised in that also including sierozem power 25 in parts by weight
Part~35 parts.
3. ammonia nitrogen removal agent according to claim 2, it is characterised in that by following component group in parts by weight
Into：
20 parts~24 parts of sym-closene,
2 parts~4 parts of calcium chloride,
1.5 parts~2.5 parts of magnesium chloride,
4 parts~6 parts of sodium acid carbonate,
18 parts~22 parts of calcium carbonate,
8 parts~12 parts of sierozem power.
4. ammonia nitrogen removal agent according to claim 3, it is characterised in that by following component group in parts by weight
Into：
22 parts of sym-closene,
3 parts of calcium chloride,
2 parts of magnesium chloride,
5 parts of sodium acid carbonate,
20 parts of calcium carbonate,
10 parts of sierozem power.
5. the preparation method of the ammonia nitrogen removal agent according to any one of Claims 1 to 4, it is comprised the steps of：
(1) calcium carbonate of formula ratio is weighed, is added in solid mixer, design temperature is 80 DEG C, starts stirring；
(2) sierozem power of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(3) sym-closene of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(4) calcium chloride of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(5) magnesium chloride of formula ratio is weighed, puts into above-mentioned mixer, is stirred until homogeneous；
(6) sodium acid carbonate of formula ratio is weighed, is put into above-mentioned mixer, is stirred until homogeneous, then proceedes to 20 points of heating stirring
Clock was to 1 hour；
(7) by the feedstock transportation mixed into storage device, and it is distributed into suitable subpackage dress.
6. the preparation method of ammonia nitrogen removal agent according to claim 5, it is characterised in that each original used in preparation
Material, specification is content more than 90%, the mesh of the mesh of granular size 300~400.
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| CN107698008A (en) * | 2017-11-25 | 2018-02-16 | 山西师范大学 | New application of the solid-state ammonium sulfate calcium carbonate reaction in water body NH_3-N treating |
| CN108275747A (en) * | 2018-02-08 | 2018-07-13 | 上海山恒生态科技股份有限公司 | A kind of ecological, environmental protective water purification agent of quick elimination black and odorous water ammonia nitrogen |
| CN109574106A (en) * | 2018-12-27 | 2019-04-05 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Ammonia nitrogen fast degradation medicament and preparation method thereof, application method and application |
| CN112320915A (en) * | 2020-09-22 | 2021-02-05 | 甘肃鹏发环保节能科技有限公司 | Water ammonia nitrogen removal degradation agent |
| CN112830530A (en) * | 2020-12-30 | 2021-05-25 | 悦虎晶芯电路(苏州)股份有限公司 | Nitrogen-emission-free production process for circuit board production |
| CN113213602A (en) * | 2021-05-17 | 2021-08-06 | 绿水青山环保科技（大连）有限公司 | Purifying agent for producing nitrogenous wastewater by aerobic fermentation of household garbage, and preparation method and application thereof |
| CN113303335A (en) * | 2020-02-27 | 2021-08-27 | 超水国际股份有限公司 | Unitary hypochlorous acid disinfectant and its preparing process |
| CN113511715A (en) * | 2021-06-17 | 2021-10-19 | 苏州福硼科技发展有限公司 | High-efficiency denitrifying agent and preparation method thereof |
| CN114291881A (en) * | 2021-12-24 | 2022-04-08 | 湖南有色郴州氟化学有限公司 | Ammonia nitrogen wastewater treatment agent and use method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107698008A (en) * | 2017-11-25 | 2018-02-16 | 山西师范大学 | New application of the solid-state ammonium sulfate calcium carbonate reaction in water body NH_3-N treating |
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| CN109574106A (en) * | 2018-12-27 | 2019-04-05 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Ammonia nitrogen fast degradation medicament and preparation method thereof, application method and application |
| CN113303335A (en) * | 2020-02-27 | 2021-08-27 | 超水国际股份有限公司 | Unitary hypochlorous acid disinfectant and its preparing process |
| CN112320915A (en) * | 2020-09-22 | 2021-02-05 | 甘肃鹏发环保节能科技有限公司 | Water ammonia nitrogen removal degradation agent |
| CN112830530A (en) * | 2020-12-30 | 2021-05-25 | 悦虎晶芯电路(苏州)股份有限公司 | Nitrogen-emission-free production process for circuit board production |
| CN113213602A (en) * | 2021-05-17 | 2021-08-06 | 绿水青山环保科技（大连）有限公司 | Purifying agent for producing nitrogenous wastewater by aerobic fermentation of household garbage, and preparation method and application thereof |
| CN113511715A (en) * | 2021-06-17 | 2021-10-19 | 苏州福硼科技发展有限公司 | High-efficiency denitrifying agent and preparation method thereof |
| CN114291881A (en) * | 2021-12-24 | 2022-04-08 | 湖南有色郴州氟化学有限公司 | Ammonia nitrogen wastewater treatment agent and use method and application thereof |
| CN114291881B (en) * | 2021-12-24 | 2023-03-03 | 湖南有色郴州氟化学有限公司 | Ammonia nitrogen wastewater treatment agent and use method and application thereof |
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