KR20130108945A - Composition for deodorizing sludge and method using thereof - Google Patents

Composition for deodorizing sludge and method using thereof Download PDF

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KR20130108945A
KR20130108945A KR1020120030813A KR20120030813A KR20130108945A KR 20130108945 A KR20130108945 A KR 20130108945A KR 1020120030813 A KR1020120030813 A KR 1020120030813A KR 20120030813 A KR20120030813 A KR 20120030813A KR 20130108945 A KR20130108945 A KR 20130108945A
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sewage sludge
carbonate
weight
percarbonate
potassium
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KR1020120030813A
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Korean (ko)
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김영준
김연재
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김영준
김연재
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor

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  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
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Abstract

PURPOSE: A composition for removing an odor of sewage sludge or food waste and a method for removing the odor using the same are provided to treat the deodorization composition directly in the sludge, thereby ensuring an excellent deodorization effect for ammonia and hydrogen sulfide which are the cause of the odor. CONSTITUTION: A composition for deodorizing a sewage sludge consists of 5-30 weight% of carbonate and 70-95 weight% of percarbonate. The carbonate is selected from the group of lithium carbonate, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, calcium carbonate, magnesium carbonate, and dolomite. The percarbonate is either sodium percarbonate or potassium percarbonate. 0.5-5 weight% of the total weight of the composition for deodorizing the sewage sludge is sprayed. [Reference numerals] (AA) Ammonia; (BB) Hydrogen sulfide; (CC) Example 2; (DD) Example 5; (EE) Example 6; (FF) Comparative example 1

Description

Composition for deodorizing sludge and method using same

The present invention relates to a composition for sewage sludge deodorization and a deodorization method using the same, and more particularly, to a composition for sewage sludge deodorization using percarbonate as a main component.

Various sewage sludge deodorizing compositions and deodorization methods using the same have been sought in order to effectively deal with the increase of bio waste each year. If they are to be landfilled, there are problems such as landfill safety and odor, and incineration is difficult due to problems such as air pollution such as dioxins and high disposal costs. Therefore, there is a need for an alternative to the odor problems caused by land treatment and the environmentally friendly use of by-products.

Malodors are generally distinguished by acidic odors such as hydrogen sulfide, methyl sulfide, methyl mercaptan, methyl disulfide, alkaline odors such as ammonia and trimethyl amine, and neutral odors such as acetaldehyde and styrene. In order to remove such odor-causing substances, sensory deodorization method, biological deodorization method (Korean Patent No. 0673585), chemical deodorization method (for example, Republic of Korea Patent Publication No. 2002-0009337, Republic of Korea Patent No. 0821664, Republic of Korea Patent Publication No. 2010-0137773), physical deodorization method (Korean Patent Publication No. 1989-0003410) and the like are used. However, these methods currently require improvement in terms of efficiency, effectiveness, durability, and stability. For example, the triple salt of the Republic of Korea Patent Publication No. 2010-0137773 is difficult to expect a wide range of deodorizing effect on odorous substances having different characteristics, that is, acid odor, alkaline odor, neutral odor. In addition, the method of adsorbing malodorous substances by using the zeolite of Korean Unexamined Patent Publication No. 1989-0003410 has the effect of removing the malodorous substances in a short time, but there is no sustainability when used for a long time. The problem is known.

However, such a conventional sewage sludge deodorizing composition and deodorizing method using the same have problems in terms of deodorizing effect, efficiency, durability, and stability. The present invention is to solve various problems including the above problems, it is an object of the present invention to provide a composition and method that can effectively remove the odor generated from sewage sludge, food waste. However, these problems are exemplary and do not limit the scope of the present invention.

According to one aspect of the invention, there is provided a composition for sewage sludge deodorization consisting of 5 to 30% by weight carbonate and 70 to 95% by weight percarbonate.

In the sewage sludge deodorizing composition, the carbonate is lithium carbonate (Li 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), sodium bicarbonate (NHCO 3 ), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), Calcium carbonate (CaCO 3 ), magnesium carbonate (MgCO 3 ) or dolomite (CaMg (CO 3 ) 2 ), wherein the percarbonate is sodium percarbonate (2Na 2 CO 3 · 3H 2 O 2 ) or potassium percarbonate (2K 2 CO 3 H 2 O 2 ).

In the sewage sludge deodorizing composition, the sewage sludge deodorizing composition may be sprayed 0.5 to 5% (w / w) based on the total sludge weight.

According to another aspect of the invention, the composition for sewage sludge deodorizing individually packaged; And a reaction initiator comprising 30 to 70 wt% of a carbon dioxide generator and 30 to 70 wt% of an oxidizing agent or an aqueous solution of a reaction initiator in which 1 weight part of the reaction initiator is dissolved in 5 to 20 weight parts of water. Kits are provided.

In the sewage sludge deodorizing kit, the composition for sewage sludge deodorization may be composed of 5 to 30% by weight of carbonate and 70 to 95% by weight of percarbonate, wherein the carbonate is lithium carbonate (Li 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), sodium bicarbonate (NHCO 3 ), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), calcium carbonate (CaCO 3 ), magnesium carbonate (MgCO 3 ) or dolomite (CaMg (CO 3 ) 2 ), And the percarbonate may be sodium percarbonate (2Na 2 CO 3 · 3H 2 O 2 ) or potassium percarbonate (2K 2 CO 3 · H 2 O 2 ).

In the sewage sludge degassing kit, the carbon dioxide generator may be one or two selected from the group consisting of citric acid, nitric acid, huahua, sodium nitrate, potassium nitrate, lactic acid, malic acid and tartaric acid, the oxidizing agent May be one or two selected from the group consisting of ferrous sulfate (FeSO 4 ) and ferric sulfate (FeSO 4 · Fe 2 (SO 4 ) 3 ).

According to another aspect of the invention, 0.05 to 0.5 parts by weight of the reaction initiator containing 30 to 70% by weight of the carbon dioxide generator and 30 to 70% by weight of the oxidizing agent 2 to 15 parts by weight of water 1 part by weight of the sewage sludge deodorizing composition Preparing a sewage sludge deodorizing solution by dissolving in an aqueous reaction initiator solution dissolved in the; And it provides a sewage sludge deodorizing method comprising the step of spraying the sewage sludge deodorizing solution to 0.5 to 5.0% by weight relative to the sewage sludge.

In the sewage sludge deodorizing method, the composition for sewage sludge deodorization may be composed of 5 to 30% by weight of carbonate and 70 to 95% by weight of percarbonate, wherein the carbonate is lithium carbonate (Li 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), sodium bicarbonate (NHCO 3 ), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), calcium carbonate (CaCO 3 ), magnesium carbonate (MgCO 3 ) or dolomite (CaMg (CO 3 ) 2 ) The percarbonate may be sodium percarbonate (2Na 2 CO 3 · 3H 2 O 2 ) or potassium percarbonate (2K 2 CO 3 · H 2 O 2 ).

In the sewage sludge deodorizing method, the carbon dioxide generating agent may be one or two or more selected from the group consisting of citric acid, nitric acid, huahua, sodium nitrate, potassium nitrate, lactic acid, malic acid and tartaric acid, the oxidizing agent May be one or two selected from the group consisting of ferrous sulfate (FeSO 4 ) and ferric sulfate (FeSO 4 · Fe 2 (SO 4 ) 3 ).

According to one embodiment of the present invention made as described above, it is possible to effectively remove the odor of sewage sludge or food waste. Of course, the scope of the present invention is not limited by these effects.

1 is a graph comparing the effect of removing odor pollutants according to the sewage sludge deodorization method according to an embodiment of the present invention.

The terms used in this document are defined as follows.

The - to be used in the present document, "Fenton (Fenton) reaction" is an acid solution from H2O2 is Fe2 + and the reaction to one involving the numerous side reactions, as a method of highly oxidizing reaction to produce OH-, the main reaction of the organic material removal, the OH It means a reaction to generate. This OH - reacts with organic matter to produce the organic radicals, the organic radicals are oxidized and decomposed as Fe3 + is reduced into Fe 2+. In the case of using the Fenton reaction, dilution of hydrogen peroxide to an appropriate concentration in the process of removing the odor of hydrogen peroxide itself and the odor generated from sewage sludge has a problem of danger to workers.

As used herein, "sewage sludge deodorizing composition" means a composition consisting of 5 to 30% by weight carbonate and 70 to 95% by weight percarbonate. It is suitable to remove odor from sewage sludge, food waste, anger and sewage sludge which contains various odor causing substances.

As used in this document, “sodium percarbonate” provides the deodorizing effect by oxidatively decomposing odor causing substances in sewage sludge through the production of free radicals and OH radical reactions. When the percarbonate is dissolved in water, it shows an oxidation potential of about 1.7 to 3.0 V through the following oxidation reaction, which can decompose most organic matter:

H 2 O 2 + 2H + + 2e - -> 2H 2 O (oxidation potential: 1.8V);

2OH. + 2H + + 2e -- > 2H 2 O (oxidation potential: 2.8V); And

HO2 · + 2H + + 2e - -> 2H 2 O ( oxidation potential: 1.7V).

In addition, when the percarbonate is dissolved in water, it maintains the slurry (slurry) state, it is possible to maintain a continuous reactivity to provide an effect of increasing the efficiency of decomposition of odor causing substances of sewage sludge. The percarbonate is preferably contained 70 to 95% by weight relative to the total weight of the composition for sewage sludge deodorization. If it is less than the above-mentioned range, there is a problem that does not generate enough oxidation potential to decompose the odor-causing substances of sewage sludge, and when used over the above-mentioned range, problems such as an increase in cost and an increase in water content of the sludge Can be generated.

As used in this document, "sodium carbonate" provides the effect of capturing and removing odorous substances through carbon dioxide generated by reaction with organic acids in sewage sludge deodorizing compositions. The carbonate is preferably contained 5 to 30% by weight based on the total weight of the composition for sewage sludge deodorization. If it is less than the above-mentioned range, there is a problem that the odorous substances are not sufficiently removed, and when used in excess of the above-described range, problems such as an increase in cost and an increase in water content of sludge may occur.

"Sewage sludge restoration method" used in this document is a reaction initiator containing 0.05 to 0.5 parts by weight of water 2 to 1 part by weight of the sewage sludge deodorizing composition 30 to 70% by weight carbon dioxide generator and 30 to 70% by weight oxidizing agent Preparing a sewage sludge purification solution by dissolving in an aqueous solution of a reaction initiator dissolved in 15 to 15 parts by weight; And spraying the sewage sludge purification solution into the sewage sludge at 0.5 to 5.0% by weight with respect to the sewage sludge, after separately preparing each component constituting the sewage sludge deodorizing composition, It is characterized in that the mixing during the spraying. When spraying the sewage sludge in less than the above-mentioned range does not sufficiently decompose odor-causing substances, there is a problem that the efficiency of the cost decreases when spraying over.

In the sewage sludge restoration method, the carbon dioxide generating agent reacts with the carbonate to generate carbon dioxide, and the carbon dioxide generated as described above collects odorous substances to remove odors. The carbon dioxide generating agent may be one kind or two or more kinds selected from the group consisting of citric acid, nitric acid, Hwaan, sodium nitrate, potassium nitrate, lactic acid, malic acid and tartaric acid.

Further, in the sewage sludge restoration method, the oxidizing agent provides the effect of removing the odor contaminants of the sewage sludge by the oxidizing power to react with percarbonate to generate OH - radicals. The oxidizing agent may be one or two or more selected from the group consisting of ferrous sulfate (FeSO 4 ) and ferric sulfate (FeSO 4 · Fe 2 (SO 4 ) 3 ), and the form of the oxidizing agent is particularly limited. Although it does not, granular or powdery form can be used.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the drawings disclosed below, but may be implemented in various forms. The embodiments shown in the following drawings make the disclosure of the present invention complete, and It is provided to fully inform the knowledge of the scope of the invention. Also, for convenience of explanation, the components may be exaggerated or reduced in size.

1 is a graph comparing the effect of removing odor pollutants according to the sewage sludge deodorization method according to an embodiment of the present invention. The method using the sewage sludge deodorizing composition containing the percarbonate and carbonate as a main component according to an embodiment of the present invention, the removal rate of ammonia and hydrogen sulfide (Example 2) is the wood vinegar solution used as a conventional deodorizer remover (Comparative Example 1) Compared with the excellent deodorizing effect. However, when the percarbonate (Example 5) or carbonate (Example 6) constituting the deodorizing composition according to an embodiment of the present invention as a single component, such a deodorizing effect was reduced. These results prove that the deodorizing effect is more effective when the percarbonate and carbonate are used together.

Hereinafter, the present invention will be described in more detail with reference to Examples and Experimental Examples. It should be understood, however, that the invention is not limited to the disclosed embodiments and examples, but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to fully inform the owner of the scope of the invention.

Example 1 Sewage Sludge Deodorization Method

The sewage sludge deodorizing method of Example 1 is a method using a composition for sewage sludge deodorization, a carbon dioxide generator and an oxidizing agent as a reaction initiator. The sewage sludge deodorizing composition is composed of percarbonate and carbonate, and was prepared by individually packing 170 g and 30 g of percarbonate and carbonate in the solid state, respectively. As the reaction initiator, 100 g of citric acid was added to 900 g of pure water, followed by stirring, and 100 g of ferrous sulfate was added to 900 g of pure water, followed by stirring.

Immediately after using 200 g of the sewage sludge deodorizing composition and 1800 g of water, 1 ml of the mixture of 10 g of the mixture and 1 g of the oxidizing agent was applied to a standard cotton cloth prescribed in JIS L 0803, followed by ammonia The deodorizing effect of, trimethylamine, methyl mercaptan and hydrogen sulfide was measured. The initial concentrations of the ammonia, trimethylamine, methyl mercaptan and hydrogen sulfide were 100 ppm, 28 ppm, 8 ppm and 50 ppm, respectively. At this time, the deodorization rate was calculated using the following equation (1).

Figure pat00001

Cb: BLANK, concentration of the test gas remaining in the test gas bag after 2 hours

Cs: concentration of the test gas remaining in the test gas bag after 2 hours.

Example 2 Sewage Sludge Deodorization Method

The sewage sludge deodorizing method of Example 2 is a method using a sewage sludge deodorizing composition, a carbon dioxide generator, and an oxidizing agent as a reaction initiator. Unlike Example 1, the deodorizing effect on ammonia was confirmed by spraying directly on sewage sludge. The sewage sludge deodorizing composition was used to individually package 170 g and 30 g of percarbonate and carbonate in the solid state, respectively. As the reaction initiator, 100 g of citric acid was added to 900 g of pure water, followed by stirring, and 100 g of ferrous sulfate was added to 900 g of pure water, followed by stirring. Immediately before using 200 g of the sewage sludge deodorizing composition and 1800 g of water, 10 g of the mixture and 1 g of the oxidizing agent were sprayed onto 1000 g of sewage sludge having an initial concentration of 1,300 ppm of ammonia.

Example 3: Sewage Sludge Deodorization Method

The sludge deodorizing method of Example 3 was a method of using the sewage sludge deodorizing composition, a carbon dioxide generator and an oxidizing agent as a reaction initiator, and was performed to confirm the odor removal effect of the sludge according to the difference in the content of the reaction initiator. The sewage sludge deodorizing composition was used to individually package 170 g and 30 g of percarbonate and carbonate in the solid state, respectively. A reaction initiator prepared by adding 100 g of citric acid and 100 g of ferrous sulfate to 800 g of pure water and then stirring was used. Immediately before using 200 g of the sewage sludge deodorizing composition and 1800 g of water, 10 g of the mixture and 1 g of the oxidizing agent were sprayed onto 1000 g of sewage sludge having an initial concentration of 800 ppm of ammonia. The mixture was mixed evenly and the deodorizing effect was measured. At this time, the deodorization rate was calculated using the equation (1).

Example 4 Sewage Sludge Deodorization Method

The sludge deodorizing method of Example 4 was a method of using the sewage sludge deodorizing composition, a carbon dioxide generator, and an oxidizing agent as a reaction initiator. The sewage sludge deodorizing composition was used to individually package 170 g and 30 g of percarbonate and carbonate in the solid state, respectively. A reaction initiator prepared by adding 100 g of citric acid and 100 g of ferrous sulfate to 800 g of pure water and then stirring was used. Immediately before using 200 g of the sewage sludge deodorizing composition and 1800 g of water, 8 ml of the mixture of 10 g of the mixture and 1 g of the oxidizing agent was sprayed on 1 kg of food waste and left for 30 minutes, followed by Gas-tech The ammonia and hydrogen sulfide odors were measured through a detection tube. The food wastes were collected in a food waste disposal company and immediately put into a sealed container of 30 cm x 30 cm by 1 kg.

Example 5 Sewage Sludge Deodorization Method

The deodorizing effect of the sodium percarbonate single component constituting the composition for sewage sludge deodorization according to an embodiment of the present invention was confirmed. 200 g of solid sodium percarbonate was separately packaged and prepared by adding 100 g of citric acid to 900 g of pure water as the reaction initiator, followed by stirring and adding 100 g of ferrous sulfate to 900 g of pure water, followed by stirring the oxidizing agent. Was used. Immediately before using 200 g of the sewage sludge deodorizing composition and 1800 g of water, 10 g of the mixture and 1 g of the oxidizing agent were sprayed onto 1000 g of sewage sludge having an initial concentration of 1,300 ppm of ammonia.

Example 6 Sewage Sludge Deodorization Method

The deodorizing effect of the sodium carbonate single component constituting the composition for sewage sludge deodorization according to an embodiment of the present invention was confirmed. 200 g of solid sodium carbonate was separately packaged and prepared by adding 100 g of citric acid to 900 g of pure water as the reaction initiator, followed by stirring and adding 100 g of ferrous sulfate to 900 g of pure water, followed by using a stirred oxidizing agent. It was. Immediately before using 200 g of the sewage sludge deodorizing composition and 1800 g of water, 10 g of the mixture and 1 g of the oxidizing agent were sprayed onto 1000 g of sewage sludge having an initial concentration of 1,300 ppm of ammonia.

Comparative Example 1: Sewage Sludge Deodorization Method

The sewage sludge deodorizing effect according to an embodiment of the present invention was compared with wood vinegar. The wood vinegar is a substance known to the deodorizing effect, the effect is described in Republic of Korea Patent No. 10-0719857. Specifically, after adding 100 g of wood vinegar and 10 g of citric acid to 890 g of pure water. After preparing the dissolved composition by stirring, 8 g of the diluted solution of 10 g of the composition diluted in 490 g of distilled water was sprayed on 1 kg of food waste and left for 30 minutes, and then the degree of ammonia and hydrogen sulfide odor was measured through a gas-tech detector. . The food wastes were collected in a food waste disposal company and immediately put into a sealed container of 30 cm x 30 cm by 1 kg.

Experimental Example 1: Confirmation of the effect of the sewage sludge deodorization method

Deodorizing effect according to the deodorizing method according to an embodiment of the present invention was confirmed using the method of Examples 1 to 4 and Comparative Example 1.

Through the method of Example 1, the composition for sewage sludge deodorization according to an embodiment of the present invention is excellent against all kinds of odor regardless of acidic odor (hydrogen sulfide), alkali odor (ammonia) as shown in Table 1 below It was confirmed that the removal efficiency was shown (Table 1).

Item Deodorization Rate (%) ammonia 99.8 Trimethylamine 99.6 Acetaldehyde 78.6 Methyl mercaptan 99.3 Acetic acid 99.9 Hydrogen sulfide 99.4

In addition, when the sewage sludge deodorizing composition according to an embodiment of the present invention by the method of Example 2 directly treated with sludge, it exhibits a deodorizing effect of 80.8% and 90.8% for ammonia and hydrogen sulfide, which are odor causing substances, respectively. Excellent deodorizing effect was demonstrated (Table 2).

In addition, as a result of confirming the deodorizing effect of sewage sludge according to the content of the reaction initiator by the method of Example 3, as shown in Table 2, the composition for sewage sludge deodorization according to an embodiment of the present invention is a odor causing material of sewage sludge Phosphorus ammonia and hydrogen sulfide showed 88.8% and 92.3% deodorization rates, respectively, and excellent deodorizing effect was demonstrated (Table 2).

In addition, when the food waste was treated with the composition for sewage sludge deodorizing according to an embodiment of the present invention by the method of Example 4, the deodorization rate of 99.2% and 80.3% for ammonia and hydrogen sulfide, which are odor causing substances of the food waste, respectively It has been demonstrated that it can provide an excellent deodorizing effect even in food waste (Table 2). In addition, when using a composition prepared using wood vinegar as a comparative example for the deodorizing effect, 70.4% and 30.2% of ammonia and hydrogen sulfide, which are the bad smells of food wastes, were removed (Table 2). That is, compared to the composition for sewage sludge deodorization according to an embodiment of the present invention was confirmed that the efficiency is about 20 to 50% lower. These results prove that the composition for sewage sludge deodorization according to an embodiment of the present invention shows an excellent effect compared to the conventional deodorizing composition.

Item Ammonia Deodorization Rate (%) Hydrogen sulfide deodorization rate (%) Example 2 80.8 90.8 Example 3 88.8 92.8 Example 4 99.2 80.3 Example 5 75.3 82.3 Example 6 68.9 72.6 Comparative Example 1 70.4 30.2

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (13)

Sewage sludge deodorizing composition consisting of 5 to 30% by weight of carbonate and 70 to 95% by weight of percarbonate. The method of claim 1,
The carbonate is lithium carbonate (Li 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), sodium bicarbonate (NHCO 3 ), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), calcium carbonate (CaCO 3 ), May be magnesium carbonate (MgCO 3 ) or dolomite (CaMg (CO 3 ) 2 ), and the percarbonate is sodium percarbonate (2Na 2 CO 3 · 3H 2 O 2 ) or potassium percarbonate (2K 2 CO 3 · H 2 O 2 ) Phosphorus sludge deodorizing composition. The method of claim 1,
The sewage sludge deodorizing composition is 0.5 to 5% (w / w) to the sludge, based on the total weight of the sludge, sewage sludge deodorizing composition. Individually packaged sewage sludge deodorizing compositions; And
Kit for sewage sludge deodorization comprising a reaction initiator containing 30 to 70% by weight of carbon dioxide generator and 30 to 70% by weight of oxidizing agent or an aqueous solution of a reaction initiator dissolved in 5 to 20 parts by weight of water. . 5. The method of claim 4,
Sewage sludge deodorizing composition is composed of 5 to 30% by weight of carbonate and 70 to 95% by weight percarbonate, sewage sludge deodorization kit. 5. The method of claim 4,
The carbonate is lithium carbonate (Li 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), sodium bicarbonate (NHCO 3 ), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), calcium carbonate (CaCO 3 ), May be magnesium carbonate (MgCO 3 ) or dolomite (CaMg (CO 3 ) 2 ), and the percarbonate is sodium percarbonate (2Na 2 CO 3 · 3H 2 O 2 ) or potassium percarbonate (2K 2 CO 3 · H 2 O 2 ) Kit for phosphorus and sewage sludge deodorization. 5. The method of claim 4,
The carbon dioxide generator is one or two or more selected from the group consisting of citric acid, nitric acid, huahua, sodium nitrate, potassium nitrate, lactic acid, malic acid and tartaric acid, sewage sludge deodorizing kit. 5. The method of claim 4,
The oxidizing agent is one or two or more selected from the group consisting of ferrous sulfate (FeSO 4 ) and ferric sulfate (FeSO 4 · Fe 2 (SO 4 ) 3 ), sewage sludge deodorization kit. 1 part by weight of the sewage sludge deodorizing composition 0.05 to 0.5 parts by weight of a reaction initiator comprising 30 to 70% by weight of a carbon dioxide generator and 30 to 70% by weight of an oxidizing agent is dissolved in an aqueous solution of a reaction initiator dissolved in 2 to 15 parts by weight of water. Preparing a sewage sludge deodorizing solution; And
Sewage sludge deodorizing method comprising the step of spraying sewage sludge with 0.5 to 5.0% by weight relative to the sewage sludge. The method of claim 9,
Sewage sludge deodorizing composition is composed of 5 to 30% by weight of carbonate and 70 to 95% by weight percarbonate, sewage sludge deodorization method. The method of claim 9,
The carbonate is lithium carbonate (Li 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), sodium bicarbonate (NHCO 3 ), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), calcium carbonate (CaCO 3 ), May be magnesium carbonate (MgCO 3 ) or dolomite (CaMg (CO 3 ) 2 ), and the percarbonate is sodium percarbonate (2Na 2 CO 3 · 3H 2 O 2 ) or potassium percarbonate (2K 2 CO 3 · H 2 O 2 ) Deodorization method of phosphorus and sewage sludge. The method of claim 9,
The carbon dioxide generator is one or two or more selected from the group consisting of citric acid, nitric acid, Hwaan, sodium nitrate, potassium nitrate, lactic acid, malic acid and tartaric acid, sewage sludge deodorization method. The method of claim 9,
The oxidizing agent is one or two selected from the group consisting of ferrous sulfate (FeSO 4 ) and ferric sulfate (FeSO 4 · Fe 2 (SO 4 ) 3 ), sewage sludge deodorization method.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102541123B1 (en) * 2022-05-06 2023-06-08 윤찬헌 Odor treatment and disinfectant composition comprising

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102541123B1 (en) * 2022-05-06 2023-06-08 윤찬헌 Odor treatment and disinfectant composition comprising

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