CN104190234B - A kind of garbage transfer station deodorizer and preparation method thereof - Google Patents

A kind of garbage transfer station deodorizer and preparation method thereof Download PDF

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Publication number
CN104190234B
CN104190234B CN201410468216.0A CN201410468216A CN104190234B CN 104190234 B CN104190234 B CN 104190234B CN 201410468216 A CN201410468216 A CN 201410468216A CN 104190234 B CN104190234 B CN 104190234B
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deodorizer
chlorine dioxide
mixed liquor
water
transfer station
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CN104190234A (en
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王猛
张千峰
赵强
贾爱铨
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Anhui University of Technology AHUT
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Anhui University of Technology AHUT
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

Disclosure one garbage transfer station deodorizer and preparation method thereof, belongs to deodorizer preparing technical field. The each component of this deodorizer and mass percent thereof be: ferrous sulfate 16��20, stable chlorine dioxide 1��2, nano titanium oxide 0.5��1.5 and excess water. First the stirring of water and stable chlorine dioxide is prepared chlorine dioxide stock solution by this preparation method, then adds nano titanium oxide in chlorine dioxide stock solution and stirs prepared mixed liquor A; In another part water, it blasts bubble and prepares mixed liquid B after adding ferrous sulfate; Undertaken being mixed and stirred for uniformly finally giving garbage transfer station deodorizer of the present invention by mixed liquor A and mixed liquid B. Deodorizer of the present invention has efficient, lasting feature and safe and nontoxic.

Description

A kind of garbage transfer station deodorizer and preparation method thereof
Technical field:
The invention belongs to deodorizer preparing technical field, relate to a kind of garbage transfer station deodorizer and preparation method thereof, particularly relate to the aqueous deodorizer of a kind of lower preparation that jointly interacts with titanium dioxide and chlorine dioxide and iron salt.
Technical background:
Ferrous sulfate, as the slaine of a kind of nontoxic, environmental protection, is usually used in preparing iron oxide pigment, water purification agent, preservative, disinfectant etc. Can there is redox reaction and metathesis reaction in the sulfide of iron ion and lower valency, according to the foul smell of these reaction treatment sulfur-bearings or the generation suppressing stink, deodorizing effect can be made more thorough. The mechanism of iron ion removing sulfide is acid different with under alkali condition, particularly as follows: in acid condition, hydrogen sulfide does not ionize, and has following reaction:
H2S+2Fe3+=2Fe2++S+2H+
In the basic conditions, hydrogen sulfide and ferric ion are all absent from, but can exist with the form of sulphion and hydrated ferric oxide., and concrete reaction is:
H2S+2OH-=2H2O+S2-
Fe3++3OH-=Fe (OH)3��
2Fe(OH)3+S2-=2Fe (OH)2+S+2OH-
When sulphion excessive concentration, also can generate the FeS precipitation of more indissoluble, when it is applied to the flocculating and purifying of water, phosphate can be removed from city and trade effluent, in case water-stop body eutrophication, stoping a large amount of bacteria breed so that it is can not produce foul smell by decomposing organic matter, this is to carry out preventative deodorization from the angle changing water quality. The problem smelly in order to solve filthy water better, it is possible to adding oxidant in iron salt solutions, the character utilizing its oxidisability relatively strong carries out sterilizing and aoxidize smelly compound, reaches the purpose of deodorization.
Common oxidant has hypochlorous acid, hydrogen peroxide, potassium permanganate, chlorine dioxide etc., above three kinds exist many defects because of it in preparation, storage, transport etc., fundamentally cannot be used deodorizer, and chlorine dioxide is known as safe and nontoxic Green Oxidant in the world, a series of saprophytic bacteria, aerobic bacteria, anaerobic bacteria can be killed, be a kind of well bactericidal deodorant. From molecular structure, chlorine dioxide is single electron compound, and outer layer has 19 electronics, and therefore, it has extremely strong oxidability, almost can aoxidize all and have material frowzy. Direct oxidation of hydrogen sulfide can be sulfate radical by it, makes stink disappear;Can be also nitrogen by ammonia Quick Oxidation; Some mercaptan, thioether, under its strong oxidation, also can become high-valence state odorless compound. From the viewpoint of Physiology and biochemistry, chlorine dioxide is also without big pathogenic impact, and when working concentration is lower than 500ppm, the impact of human body can be ignored by it; When concentration is when below 100ppm, skin will not be produced any sensitization. It is true that the conventional working concentration of chlorine dioxide is normally only within the scope of tens ppm; Further, chlorine dioxide is gas at normal temperatures, has the specific stimulation taste of similar chlorine and nitric acid, and performance is also very unstable, to heat, vibrations, clashes into and friction quite sensitivity, is extremely easy in decomposition and blasts, thus limiting its extensive use in practice. Gaseous chlorine dioxide is highly soluble in water, and its aqueous solution is relatively stable at dark cold place, is sprayed by high pressure sprays fog equipment after dilution, can play deodorization and sterilization effect. But, so can cause substantial amounts of waste, the chlorine dioxide being dissolved in water all discharges in a flash what spray, it cannot be guaranteed that the time of contact sufficient with bacterial micro-organism and malodor molecules, the air that the chlorine dioxide that left floating also can be circulated is taken away, and its concentration is quickly down to below 100ppm, lose the effect of deodorization and sterilization immediately, being typically in 20��30 minutes, stink can reappear, and deodorizing effect can not be lasting.
Summary of the invention:
The present invention is directed to the technical problems such as existing deodorizer deodorizing effect is not lasting, it is provided that a kind of garbage transfer station deodorizer and preparation method thereof.
A kind of each component of garbage transfer station deodorizer provided by the present invention and mass percent thereof are as follows:
The preparation method of a kind of garbage transfer station deodorizer provided by the present invention specifically comprises the following steps that
(1) it is 20:1 according to water and described stable chlorine dioxide mass ratio, agitator is placed a part of water, then under agitation, it is poured slowly into described stable chlorine dioxide, 10��15 minutes transparent chlorine dioxide stock solution of prepared yellow green will be stirred after described stirrer seal.
(2) in the described chlorine dioxide stock solution of step (1), nano titanium oxide is added, after stirring, preparing yellow green milk shape mixed liquor, this mixed liquor has substantial amounts of chlorine dioxide to be attached on nano titanium oxide, and this mixed liquor is designated as mixed liquor A.
(3) remaining another part water is placed in another agitator, in this agitator, it adds ferrous sulfate, stirring obtains copperas solution, then in this agitator, the prepared mixed liquor of bubble is blasted with air pump, ferrous oxidising for ferric iron by described ferrous sulfate, is designated as mixed liquid B by this mixed liquor.
(4) by described mixed liquor A and mixed liquid B according to mass ratio A:B=1:(0.5��2) carry out being mixed and stirred for uniformly finally giving garbage transfer station deodorizer of the present invention.
The water dilution of 10 times of volumes according to the difference of field of employment, can be added during use after after mixing according to the ratio that mixed liquor A is different from mixed liquid B, diluent is sprayed on rubbish through high-pressure sprayer, the effect of efficient deodorizing can be reached.
The present invention passes through slow release method, makes chlorine dioxide progressively discharge. This slow release method is to utilize the skin effect of nano titanium oxide, photocatalytic activity that gaseous chlorine dioxide carries out multilayer adsorption and slow releasing. Titanium atom in nano titanium oxide is positive tetravalence, and for its highest price state metal-oxide, character is highly stable, and this can ensure that itself and chlorine dioxide stably coexist; As undersized nanoparticle, its surface can be significantly high, and Chlorine Dioxide Molecules can carry out the absorption of polymolecular layer, and adsorption is Van der Waals force; Titanium dioxide, after sunlight irradiates, reflects ultraviolet therein, and the ultraviolet of high energy can offset part Van der Waals force, loses the adsorption to chlorine dioxide, thus departing from load and being discharged in air. The process of this absorption and release slowly carries out under light irradiates, and therefore, this slow release method can make chlorine dioxide play deodorization for a long time.
The present invention has techniques below feature:
(1) adding nano titanium oxide, it not only can provide the carrier of absorption for chlorine dioxide, increases its dissolubility in water, and the enrichment making stock solution is higher, to save cost;Also can uv reflectance under light illumination, and give off energy, offset the adsorption to titanium dioxide with this, slowly released, make deodorizing effect more efficiently, persistently.
(2) Fe added2+It is oxidised with air to Fe3+, when it is sprayed onto in containing phosphatic smelly water, owing to dibastic sodium phosphate or sodium phosphate aqueous solution are in alkalescence, can with Fe3+React generation iron phosphate precipitation (vivianite). And common bacterial micro-organism is with free phosphate for nutriment, solid phosphoric acid ferrum can not be absorbed and used, and therefore antibacterial cannot be survived down, also cannot Organic substance in decomposition water and then release foul smell.
(3) Fe formed3+It is possible not only to remove portion phosphate, it is also possible to the sulfide of oxidizing lower state is (such as S2-), generate elemental sulfur precipitation, unlimited by the impact of system acid-base value. In acid condition, the Fe that reduction generates2+Can with S2-Reaction, and generate stable Iron sulfuret. precipitation (troilite), make organic sulfur compound and hydrogen sulfide etc. lose stink.
(4) deodorizer stock solution being divided into mixed liquor A and mixed liquid B, the scope of application is more extensive, can according to both field condition Reasonable adjustment ratio so that it is have best deodorizing effect. If on-the-spot rotten odor is relatively larger, illustrates that sulfide content is higher, the content of B component can be improved in mixed liquor, to remove the stink that sulfur-containing compound brings better; If on-the-spot sultry humidity or give an offensive smell because vegetable melon and fruit is corrupt, then can improve component A content, with pungent odours such as the aldehydes that killing microorganisms oxidation give out.
(5) additionally, mixed liquor A and mixed liquid B are individually deposited, be conducive to bulk management and transport safely, commercial production also has more good using value. This deodorizer is safe and nontoxic, and health will not be produced any impact.
Detailed description of the invention:
Embodiment 1:
On-the-spot deodorizing test is carried out at Nanjing garbage transfer station, first the pond that the sour gas such as more serious, the sulfide hydrogen of rotten odor are many is selected, mixed liquor A is mixed according to mass ratio A:B=1:1.5 with mixed liquid B, and by mixed liquor dilute 10 times, stir, be then sprayed in garbage pool. Each constituent mass percentage ratio is: stable chlorine dioxide 1%; Ferrous sulfate 20%; Nano titanium oxide 0.5%; Excess water.
(1) preparation of mixed liquor A and mixed liquid B:
By a conical flask, putting into 500g water, be firstly added 25g stable chlorine dioxide, stirring, to being completely dissolved, obtains yellow green settled solution. Then adding 5g nano titanium oxide in batches, continue stirring, solution becomes faint yellow milk shape emulsion, is designated as mixed liquor A. In another conical flask, add 200g water, then when stirring, add 140gFeSO several times4��7H2O, solution is become bright green by colourless; Then blasting bubble with air pump in copperas solution, solution is become bronzing by bright green, is designated as mixed liquid B.
(2) mixing of stock solution, dilution and sprinkling:
Mixed liquor A is mixed according to mass ratio A:B=1:1.5 with mixed liquid B, then in mixed liquor, adds the water dilution of 10 times of volumes, stir, be then sprayed onto in the compression pond of garbage transfer station through high-pressure sprayer. Will soon feel after sprinkling that stink alleviates. Surveying once every 30 minutes later, stink substantially can be kept not rebound, the deodorization time can more than 6 hours.
(3) deodorizing effect test
Adopt PTM400-H2Hydrogen sulfide content in S type hydrogen sulfide analyzer detection terminal, test data is as follows.
H2S concentration change table (mg/m3)
It is shown that the hydrogen sulfide odor concentration at scene is substantially reduced, substantially reach to national grade one discharge standard.
Embodiment 2:
In the pond that garbage transfer station selection zest foul odour in Nanjing is more serious, the ability of ammonia dispelled by this deodorizer of high spot reviews. Mixed liquor A mixes according to mass ratio A:B=1:0.5 with mixed liquid B, mixed liquor dilute 10 times, is sprayed in garbage-compressing pond, and each constituent mass percentage ratio is: stable chlorine dioxide 1%; Ferrous sulfate 20%; Nano titanium oxide 0.5%; Excess water.
The implementation of the present embodiment includes mixed liquor A and the preparation of mixed liquid B, the mixing of stock solution, dilution and sprinkling, deodorizing effect detection. Concrete operational approach is with embodiment 1. SKY2000-NH3The data that type pump suction type ammonia detector draws show, the deodorizer prepared in the method not only complete deodorization, and in 30 minutes after sprinkling, odor concentration is just reduced to below 0.015mg/m3, and the deodorization time can be maintained at 5��6 hours.
Embodiment 3:
Select to have rancid and foul odour pond concurrently at Nanjing garbage transfer station, it is carried out comprehensive deodorizing test. Mixed liquor A mixes according to mass ratio A:B=1:1 with mixed liquid B, mixed liquor dilute 10 times, is sprayed on sulfur-bearing, the nitrogen class mixing many garbage transfer station of gas, and each constituent mass percentage ratio is: stable chlorine dioxide 1%; Ferrous sulfate 20%; Nano titanium oxide 0.5%; Excess water.
The implementation of the present embodiment includes mixed liquor A and the preparation of mixed liquid B, the mixing of stock solution, dilution and sprinkling, deodorizing effect detection. Concrete operational approach is with embodiment 1. Scene is carried out H2S��NH3Concentration Testing, it is it is shown that this deodorizer can reduce foul smell content to greatest extent, and the deodorization time can be maintained at more than 5 hours.

Claims (2)

1. a garbage transfer station deodorizer, it is characterised in that each component of this deodorizer and mass percent thereof are as follows:
2. the preparation method of a kind of garbage transfer station deodorizer described in claim 1, it is characterised in that this preparation method specifically comprises the following steps that
(1) it is 20:1 according to water and described stable chlorine dioxide mass ratio, agitator is placed a part of water, then under agitation, it is poured slowly into described stable chlorine dioxide, 10��15 minutes transparent chlorine dioxide stock solution of prepared yellow green will be stirred after described stirrer seal;
(2) in the described chlorine dioxide stock solution of step (1), add nano titanium oxide, after stirring, prepare yellow green milk shape mixed liquor, this mixed liquor is designated as mixed liquor A;
(3) being placed in another agitator by remaining another part water, add ferrous sulfate in this agitator, stirring obtains copperas solution, then blasts the prepared mixed liquor of bubble with air pump in this agitator, this mixed liquor is designated as mixed liquid B;
(4) by described mixed liquor A and described mixed liquid B according to mass ratio A:B=1:(0.5��2) carry out being mixed and stirred for obtaining described garbage transfer station deodorizer after uniformly.
CN201410468216.0A 2014-09-15 2014-09-15 A kind of garbage transfer station deodorizer and preparation method thereof Active CN104190234B (en)

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CN105883946B (en) * 2016-06-22 2019-03-26 南京永禾环保工程有限公司 A kind of composite water purifying agent and preparation method thereof for chemi-mechanical pulp Sewage advanced treatment
CN108211752B (en) * 2017-12-11 2021-03-30 无锡迅朗科技有限公司 Smell removing agent and method for removing peculiar smell of air in space
CN108261906A (en) * 2018-01-16 2018-07-10 上海净入环境工程有限公司 Sterilization, eliminate the unusual smell formula and preparation method thereof except formaldehyde
CN108057328A (en) * 2018-02-05 2018-05-22 段宝荣 Remove cleanser of formaldehyde in indoor air and preparation method thereof
CN108557975A (en) * 2018-03-30 2018-09-21 河南金盾环保设备安装工程有限公司 A kind of sustained release sewage-treating agent and preparation method thereof
CN108392982B (en) * 2018-05-31 2021-06-15 松恩(山东)生态环境工程有限公司 Deodorant and preparation method and using method thereof
CN112042676A (en) * 2019-06-06 2020-12-08 广东山美环境科技有限公司 Deodorant with antiseptic and bactericidal effects

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CN103506090A (en) * 2013-08-30 2014-01-15 蚌埠德美过滤技术有限公司 Modified active carbon water treatment absorbent and preparation method thereof
CN103721564A (en) * 2013-12-31 2014-04-16 深圳先进技术研究院 Combined photocatalyst-ClO2 deodorization device and deodorization method adopting same
CN103768909A (en) * 2013-12-31 2014-05-07 深圳先进技术研究院 Comprehensive foul smell control system and method for livestock and poultry farm

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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101744004A (en) * 2009-12-21 2010-06-23 许庆华 Attapulgite chlorine dioxide antiseptic disinfectant
CN103506090A (en) * 2013-08-30 2014-01-15 蚌埠德美过滤技术有限公司 Modified active carbon water treatment absorbent and preparation method thereof
CN103721564A (en) * 2013-12-31 2014-04-16 深圳先进技术研究院 Combined photocatalyst-ClO2 deodorization device and deodorization method adopting same
CN103768909A (en) * 2013-12-31 2014-05-07 深圳先进技术研究院 Comprehensive foul smell control system and method for livestock and poultry farm

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