Liquid fertilizer with deodorization function as well as preparation method and application thereof

Abstract

The invention provides a liquid fertilizer with a deodorization function and a preparation method and application thereof, and belongs to the technical field of cultivation waste gas treatment.The preparation method of the liquid fertilizer with the deodorization function comprises the following steps that cow dung and bioactive water are mixed to serve as raw materials, solid-liquid separation is conducted after aeration, and the liquid part is the liquid fertilizer with the deodorization function. On the basis of the liquid fertilizer with the deodorization function, one or two of Rhodococcus fence celebrating Ac-P zymophyte liquid or peanut shell extract can be added, and the deodorization capacity of the liquid fertilizer is further improved. The liquid fertilizer with the deodorization function can be used for treating foul gas in livestock and poultry breeding, effectively reduces emission of odor such as NH3 and H2S, and can be directly applied to livestock and poultry breeding houses and odor treatment systems for livestock and poultry manure treatment.

Description

Technical Field

[0001] The invention belongs to the technical field of aquaculture waste gas treatment, and in particular relates to a liquid fertilizer with a deodorizing function, a preparation method and an application thereof. Background Art

[0002] Composting is an effective way to harmlessly treat solid waste from livestock and poultry farming. It has low treatment costs and can meet the requirements for harmless treatment of waste. However, the odor nuisance during the composting process is the biggest problem in the application of the technology. The main components of compost odor include ammonia, hydrogen sulfide, and volatile organic compounds (VOCs). Among them, ammonia has the highest concentration among all odor components, and hydrogen sulfide has the highest odor potential.

[0003] The odor release in the conventional composting fermentation process can be divided into two stages: concentrated release and disordered release. The concentrated release stage is mainly during the turning of the pile and 1-2 hours after turning, and the other periods are the disordered odor release stage. It is not difficult to find from the nitrogen loss data caused by the frequency of turning the pile that the amount of ammonia released is huge during the concentrated odor release stage. The odor release of composting in the disordered odor release stage is relatively small. Therefore, emission reduction in the composting odor process should focus on the concentrated release stage, while taking into account the disordered release stage. However, at present, relevant deodorization measures mainly focus on the two stages of source emission reduction and terminal emission reduction, and there is a lack of equipment and processes in the process emission reduction link.

[0004] From the perspective of the deodorization process, deodorization technology can be roughly divided into two categories: one is ex situ control, that is, the odor has been released, and the released odorous substances are directly removed by physical, chemical, biological and other means; the other is in situ control, that is, the odorous substances in the feces are directly degraded by chemical reagents, enzymes, functional bacteria, etc., or the odor-producing microorganisms in the feces are inhibited to remove the odor. It can generally be divided into in vivo control and in vitro control. In situ control technology is currently the main technology for controlling the odor of livestock and poultry manure.

[0005] At present, the regulation or treatment of malodorous gases in intensive farms is basically limited to exhausting circulating air to dilute the level of malodorous gases. The regulation of these malodorous gases from source prevention to treatment is basically "none", which is also different from the treatment of livestock and poultry wastewater, manure, etc., and is one of the current problems in animal husbandry. Summary of the invention

[0006] In view of this, the object of the present invention is to provide a liquid fertilizer with a deodorizing function, a preparation method and an application thereof, and the deodorizing liquid fertilizer is directly sprayed or applied to livestock and poultry manure for deodorization, thereby degrading malodorous gases.

[0007] The invention provides a method for preparing liquid fertilizer with deodorizing function, comprising the following steps: mixing cow dung and biologically active water as raw materials, aerating and separating solid and liquid, and obtaining the liquid part as the liquid fertilizer with deodorizing function.

[0008] Preferably, by weight, 30-50 parts of peat soil, 8-15 parts of bentonite, 8-15 parts of cement, and 0.2-1 part of calcium alginate are mixed and molded in a mold to obtain a composition, and the composition and pumice are placed in water for aeration to obtain the biologically active water.

[0009] Preferably, the cow dung and the biologically active water are mixed in a mass volume ratio of 1 g:10-20 mL and aerated for 3-5 days.

[0010] Preferably, the raw material further comprises one or both of Rhodococcus fanqingshengii Ac-P fermentation broth or peanut shell extract;

[0011] The deposit number of the Rhodococcus fanqingshengii Ac-P is CGMCC No.32243.

[0012] More preferably, the preparation method of the fermentation broth of Rhodococcus fanqingsheng's Ac-P is: inoculate Rhodococcus fanqingsheng's Ac-P in #48 liquid culture medium, and culture at a constant temperature of 25-40°C with shaking until the growth logarithmic phase.

[0013] More preferably, the cow dung, biologically active water and Rhodococcus fanqingshengii Ac-P fermentation liquid are mixed in a mass volume ratio of 1 g: 10-20 mL: 0.5-1 mL and aerated for 3-5 days.

[0014] More preferably, the preparation method of the peanut shell extract is: drying and crushing the peanut shell to obtain peanut shell powder, using the bioactive water as the extraction solvent, ultrasonically extracting to obtain peanut shell extract, concentrating and drying to obtain the peanut shell extract.

[0015] More preferably, the cow dung, bioactive water and peanut shell extract are mixed in a mass volume ratio of 1 g:10-20 mL:0.03-0.08 g and aerated for 3-5 days.

[0016] The invention also provides a deodorizing functional liquid fertilizer prepared by the preparation method.

[0017] The present invention also provides the use of the deodorizing functional liquid fertilizer in treating malodorous gases in livestock and poultry breeding, wherein the malodorous gases include NH3 and H2S.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The deodorizing functional liquid fertilizer prepared by the present invention has a significant removal effect on malodorous gases such as NH3 and H2S in livestock and poultry breeding, which helps to improve the livestock and poultry breeding environment and reduce the impact of odor on the surrounding environment and residents.

[0020] The present invention uses cow dung as raw material to prepare liquid fertilizer, realizing resource utilization of waste. Cow dung that may cause pollution is converted into liquid fertilizer with deodorizing function, which not only reduces environmental pollution, but also creates economic value, which is in line with the concept of sustainable development.

[0021] The present invention uses specially prepared biologically active water to participate in the reaction, which is conducive to the deodorization function of liquid fertilizer, and has obvious advantages over ordinary macromolecular water (such as mineral water, tap water, etc.). In addition, the addition of Ac-P fermentation liquid of Rhodococcus fanqingsheng and peanut shell extract further enhances the deodorization ability of liquid fertilizer, making the deodorization effect more comprehensive and lasting.

[0022] The deodorizing functional liquid fertilizer of the present invention can be directly applied to odor treatment systems in livestock and poultry breeding houses and livestock and poultry excrement treatment. It has a simple method of use, such as direct spraying, is easy to operate and promote, can effectively solve the odor problem in the livestock and poultry breeding process, is suitable for farms of different sizes, and has good market application prospects.

[0023] Biological Deposit Description

[0024] Biological material (strain): Ac-P, classified and named Rhodococcus qingshengii, the depository is China General Microbiological Culture Collection Center (CGMCC), the depository address is Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard 1, Beichen West Road, Chaoyang District, Beijing, the deposit number is CGMCC No.32243, and the deposit date is October 17, 2024. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The effect of peanut shell extracts with different solvents on the treatment of NH3 in cow dung;

[0026] Figure 2 The effect of peanut shell extracts with different solvents on the treatment of H2S in cow dung;

[0027] Figure 3 The effect of different deodorizing functional liquid fertilizers (BW 1L) on the treatment of NH3 in cow dung;

[0028] Figure 4 The effect of different deodorizing functional liquid fertilizers (BW 1.5L) on the treatment of NH3 in cow dung;

[0029] Figure 5 The effect of different deodorizing functional liquid fertilizers (BW 2L) on treating NH3 in cow dung;

[0030] Figure 6 The effect of different deodorizing functional liquid fertilizers (BW 1L) on treating H2S in cow dung;

[0031] Figure 7The effect of different deodorizing functional liquid fertilizers (BW 1.5L) on treating H2S in cow dung;

[0032] Figure 8 The effect of different deodorizing functional liquid fertilizers (BW 2L) on treating H2S in cow dung. DETAILED DESCRIPTION

[0033] The invention provides a method for preparing liquid fertilizer with deodorizing function, comprising the following steps: mixing cow dung and biologically active water as raw materials, aerating and separating solid and liquid, and obtaining the liquid part as the liquid fertilizer with deodorizing function.

[0034] In the present invention, preferably by weight, 30-50 parts of peat soil, 8-15 parts of bentonite, 8-15 parts of cement, and 0.2-1 parts of calcium alginate are mixed, and a composition is formed in a mold, and the composition and pumice are placed in water for aeration to obtain the biologically active water; further preferably 40 parts of peat soil, 10 parts of bentonite, 10 parts of cement, and 0.62 parts of calcium alginate; more preferably, 12g of the composition and 24g of pumice are added to each 1L of distilled water, and the biologically active water is prepared by aeration for 4 days. The biologically active water obtained by the present invention is small molecule water, which has a fast movement speed, good permeability, and strong solubility. Compared with macromolecular water (such as mineral water, mountain spring water, tap water, purified water, etc.), it can dissolve metabolites better, which is conducive to the subsequent liquid fertilizer to play a deodorizing function.

[0035] In the present invention, preferably, cow dung and biologically active water are mixed at a mass volume ratio of 1 g: 10-20 mL and aerated for 3-5 days; more preferably, cow dung and biologically active water are mixed at a mass volume ratio of 1 g: 15 mL and aerated for 4 days.

[0036] In the present invention, the preferred mixed raw materials also include fermentation broth of Rhodococcus fanqingsheng's Ac-P, and the preservation number of Rhodococcus fanqingsheng's Ac-P is CGMCC No.32243, which was deposited in the China General Microbiological Culture Collection Center (CGMCC) on October 17, 2024.

[0037] In the present invention, the preferred preparation method of the fermentation broth of Rhodococcus fanqingsheng's Ac-P is: inoculate Rhodococcus fanqingsheng's Ac-P in a #48 liquid culture medium, and culture at a constant temperature of 25-40°C with shaking until the growth logarithmic phase. The further preferred formula of the #48 liquid culture medium is: 1.0g yeast extract, 1.0g beef extract, 2.0g nitrogen source supplement (NE amineA), 10g glucose, and 1L distilled water. In the preparation method, the preferred inoculation amount of Rhodococcus fanqingsheng's Ac-P is 3%-10% (v / v), and more preferably 5% (v / v); the preferred culture speed is 150-200r / min, and more preferably 180r / min; and the fermentation broth is preferably concentrated to achieve a viable count of ≥1×108 CFU / mL standard. By adding Rhodococcus fragilis Ac-P to the deodorizing liquid fertilizer, the deodorizing ability of the liquid fertilizer can be further improved.

[0038] In the present invention, cow dung, biologically active water and Ac-P fermentation liquid of Rhodococcus fanqingsheng are preferably mixed in a mass volume ratio of 1g:10-20mL:0.5-1mL, and aerated for 3-5 days, and further preferably mixed in a mass volume ratio of 1g:15mL:0.5mL, and aerated for 4 days.

[0039] In the present invention, the mixed raw materials preferably also include peanut shell extract; further preferably, the preparation method of the peanut shell extract is: drying and crushing the peanut shell to obtain peanut shell powder, using biologically active water as the extraction solvent, ultrasonically extracting to obtain peanut shell extract, concentrating and drying to obtain the peanut shell extract.

[0040] In the present invention, the peanut shells are preferably dried at 50°C for 4 hours and crushed to a particle size of ≤20 mesh. Peanut shell powder and bioactive water are preferably mixed and extracted at a mass volume ratio of 1g:8-12mL, more preferably 1g:10mL, and more preferably soaked in bioactive water for 24 hours before extraction; the extraction time of ultrasonic oscillation is preferably 2.5-3.5h, more preferably 3h. Bioactive water can replace organic solvents such as ethanol to extract peanut shells, which can effectively reduce the use of organic solvents and prevent secondary pollution, etc., and better provide feasibility for deodorizing farms and improving the environment of farms.

[0041] In the present invention, preferably, cow dung, bioactive water and peanut shell extract are mixed in a mass volume ratio of 1g:10-20mL:0.03-0.08g and aerated for 3-5 days, and more preferably, they are mixed in a mass volume ratio of 1g:15mL:0.037g and aerated for 4 days.

[0042] In the present invention, the preferred mixed raw materials also include two kinds of fermentation bacteria liquid of Rhodococcus aureus Ac-P and peanut shell extract, so as to optimize the deodorization function of the functional liquid fertilizer from multiple angles.

[0043] The present invention also provides a deodorizing functional liquid fertilizer product prepared by the above-mentioned preparation method, wherein when the raw materials are cow dung and bioactive water, the prepared deodorizing functional liquid fertilizer is BW deodorizing functional liquid fertilizer; when the raw materials are cow dung, bioactive water and Ac-P fermentation liquid of Rhodococcus fanqingsheng's, the prepared deodorizing functional liquid fertilizer is BW-Ac-P deodorizing functional liquid fertilizer; when the raw materials are cow dung, bioactive water and peanut shell extract, the prepared deodorizing functional liquid fertilizer is BW-PSE deodorizing functional liquid fertilizer; when the raw materials are cow dung, bioactive water, Ac-P fermentation liquid of Rhodococcus fanqingsheng's and peanut shell extract, the prepared deodorizing functional liquid fertilizer is BW-Ac-P-PSE deodorizing functional liquid fertilizer.

[0044] The present invention also provides the use of the above-mentioned several deodorizing functional liquid fertilizer products in the treatment of malodorous gases in livestock and poultry breeding, wherein the malodorous gases include NH3 and H2S. As an implementation method, the deodorizing functional liquid fertilizer can be directly sprayed on livestock and poultry breeding houses, or added to deodorize during the fermentation process of livestock and poultry manure.

[0045] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0046] Example 1

[0047] The preparation of biologically active water (BW) is as follows:

[0048] (1) Preparation of the composition: 40 g of peat soil, 10 g of bentonite, 10 g of cement and 0.62 g of calcium alginate were mixed evenly, a certain amount of distilled water was sprayed on the mixture, and the mixture was extruded into a columnar material after stirring, and the columnar material was naturally air-dried to obtain the composition;

[0049] (2) Preparation of BW: 1 L of distilled water was measured, and 12 g of the composition prepared in step (1) and 24 g of pumice were added, and the mixture was aerated for 4 days to obtain biologically active water.

[0050] Example 2

[0051] The preparation steps of BW deodorizing functional liquid fertilizer are as follows:

[0052] Cow dung and biologically active water of Example 1 were mixed as raw materials at a mass volume ratio of 1 g:10 mL. After aeration for 4 days, the solid and liquid were separated, and the liquid part was the BW deodorizing functional liquid fertilizer.

[0053] Example 3

[0054] The preparation steps of BW-Ac-P deodorizing functional liquid fertilizer are as follows:

[0055] (1) Using #48 liquid medium (1.0 g of yeast extract, 1.0 g of beef extract, 2.0 g of nitrogen source supplement, 10 g of glucose, and 1 L of distilled water) as the culture medium, inoculating 5% (v / v) of Rhodococcus faecium Ac-P, and culturing at 35° C. and 180 r / min until the logarithmic growth phase to obtain Ac-P fermentation liquid;

[0056] (2) Cow dung, the biologically active water of Example 1 and the Ac-P fermentation broth of step (1) were mixed as raw materials in a mass volume ratio of 1 g:15 mL:0.5 mL. After aeration for 4 days, the solid and liquid were separated, and the liquid part was the BW-Ac-P deodorizing functional liquid fertilizer.

[0057] Example 4

[0058] The preparation steps of BW-PSE deodorizing functional liquid fertilizer are as follows:

[0059] (1) Preparation of peanut shell extract: Dry the peanut shells at 50° C. for 4 h, crush them with a grinder, and pass them through a 20-mesh sieve; soak the peanut shell powder and the bioactive water of Example 1 at a material-liquid mass volume ratio of 1 g:10 mL for 24 h, perform ultrasonic vibration extraction for 3 h, collect the peanut shell powder extract, concentrate, and dry it to prepare a paste-like peanut shell extract;

[0060] (2) Cow dung, the bioactive water of Example 1 and the peanut shell extract of step (1) were mixed as raw materials in a mass volume ratio of 1 g: 20 mL: 0.037 g. After aeration for 4 days, the solid and liquid were separated, and the liquid part was the BW-PSE deodorizing functional liquid fertilizer.

[0061] Example 5

[0062] The preparation steps of BW-Ac-P-PSE deodorizing functional liquid fertilizer are as follows:

[0063] Cow dung, the biologically active water of Example 1, the Ac-P fermentation broth of Example 3 and the peanut shell extract of Example 4 were mixed as raw materials in a mass volume ratio of 1g:20mL:1mL:0.08g. After aeration for 5 days, the solid and liquid were separated, and the liquid part was BW-Ac-P-PSE deodorizing functional liquid fertilizer.

[0064] Example 6

[0065] Deodorization effect of peanut shell extracts with different solvents on cow dung

[0066] The peanut shells were dried at 50°C for 4 hours, crushed with a grinder, and passed through a 20-mesh sieve. The peanut shell powder was soaked with different solvents at a material-liquid mass volume ratio of 1g:10mL for 24 hours, subjected to ultrasonic vibration extraction for 3 hours, and the peanut shell powder extract was collected.

[0067] The deodorization test was divided into 5 treatment groups, each of which was added with 50 g of cow dung and 50 mL of distilled water, and each treatment group was added with 40 mL of peanut shell extract.

[0068] One group was the control group (CK), which was added with 40 mL of distilled water;

[0069] The four experimental groups were:

[0070] Add 40 mL of bioactive water peanut shell extract (BW);

[0071] Add 40 mL of anhydrous ethanol peanut shell extract (EtOH);

[0072] Add 40 mL of chloroform peanut shell extract (CHCl3);

[0073] Add 40 mL of deionized water peanut shell extract (DDW).

[0074] After 24 hours of fermentation, each treatment group used an atmospheric sampler to collect gas, and the samples were analyzed within 24 hours.

[0075] Test results: Figure 1 and Figure 2 As shown in the figure, the treatment groups with better deodorization effect are the bioactive water peanut shell extract group (BW) and the anhydrous ethanol peanut shell extract group (EtOH). Both the bioactive water peanut shell extract group (BW) and the anhydrous ethanol peanut shell extract group (EtOH) have the effect of removing NH3 and H2S from cow dung, and there is no significant difference in the effect (p>0.05). This shows that in the process of removing NH3 and H2S from cow dung, bioactive water can replace organic solvents such as ethanol to extract peanut shells, which can effectively reduce the use of organic solvents and prevent secondary pollution, etc., and better provide feasibility for deodorizing farms and improving the farm environment.

[0076] Example 7

[0077] Deodorizing effect of liquid fertilizers with different deodorizing functions on cow dung

[0078] Prepare different deodorizing functional liquid fertilizers according to Table 1.

[0079] Table 1 Preparation of liquid fertilizers with different deodorizing functions

[0080] Grouping Components and proportions Aeration time CK Distilled water DW 1L: Cow dung 100g 4d Liquid Fertilizer 1 Bioactive Water BW 1L: Cow dung 100g 4d Liquid Fertilizer 2 Bioactive water BW 1L: cow dung 100g: Ac-P bacterial solution 50mL 4d Liquid Fertilizer 3 Bioactive water BW 1L: Cow dung 100g: Peanut shell powder 50g 4d Liquid Fertilizer 4 Bioactive Water BW 1L: Cow dung 100g: Peanut shell extract 3.7g 4d

[0081] According to Table 2, liquid fertilizers from each liquid fertilizer group were taken and sprayed directly onto the cow dung in a blue-capped bottle with a vent tube. The concentrations of NH3 and H2S were measured after 24 hours at a constant temperature of 35°C.

[0082] Table 2 Use of liquid fertilizers with different deodorizing functions

[0083] Grouping Deodorization method Reaction time BK 50g of cow dung, add 100mL DDW 24h CK 50g of cow dung, add 50mL of DW, and then add 50mL of liquid fertilizer CK 24h Process 1 50g of cow dung, add 50mL of DW, and then add 50mL of liquid fertilizer 1 24h Process 2 50g of cow dung, add 50mL of DW, and then add 50mL of liquid fertilizer 2 24h Process 3 50g of cow dung, add 50mL of DW, and then add 50mL of liquid fertilizer 3 24h Process 4 50g of cow dung, add 50mL of DW, and then add 50mL of liquid fertilizer 4 24h

[0084] On the basis of Tables 1 and 2, the biologically active water BW of each treatment group was increased to 1.5L and 2L respectively. Similarly, the cow dung and additives were also changed according to their respective proportions to make different deodorizing functional liquid fertilizers, which were also directly sprayed on the cow dung in the blue-capped bottle with a vent. Under the constant temperature reaction condition of 35℃, the concentrations of NH3 and H2S were measured after 24 hours.

[0085] Test results:

[0086] like Figure 3-Figure 5As shown, the BW-Ac-P deodorizing functional liquid fertilizer in treatment 2 has the highest removal efficiency for NH3 in cow dung, followed by the BW-PSE deodorizing functional liquid fertilizer in treatment 4 and the BW deodorizing functional liquid fertilizer in treatment 1. When preparing the deodorizing functional liquid fertilizer, the deodorizing functional liquid fertilizer prepared with 1.5L BW has the best effect.

[0087] like Figure 6-Figure 8 As shown, the removal efficiency of H2S in cow dung is the same as that of the treatment of NH3 in cow dung. The BW-Ac-P deodorizing functional liquid fertilizer in treatment 2 is the highest, followed by the BW-PSE deodorizing functional liquid fertilizer in treatment 4 and the BW deodorizing functional liquid fertilizer in treatment 1. When preparing the deodorizing functional liquid fertilizer, the deodorizing functional liquid fertilizer prepared with 1.5L BW has the best effect.

[0088] In summary, the deodorizing functional liquid fertilizer prepared by the present invention has a good effect of removing NH3 and H2S in cow dung, and can be used in odor treatment systems for livestock and poultry breeding houses (such as cow sheds) and livestock and poultry manure (such as cow dung).

[0089] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for preparing liquid fertilizer with deodorizing function, characterized in that: The method comprises the following steps: mixing cow dung and biologically active water as raw materials, separating solid and liquid after aeration, and the liquid part is deodorizing functional liquid fertilizer.

2. The preparation method according to claim 1, characterized in that: In parts by weight, 30-50 parts of peat soil, 8-15 parts of bentonite, 8-15 parts of cement and 0.2-1 parts of calcium alginate are mixed and molded in a mold to obtain a composition, and the composition and pumice are put into water for aeration to obtain the biologically active water.

3. The preparation method according to claim 1, characterized in that: The cow dung and biologically active water are mixed at a mass volume ratio of 1 g:10-20 mL and aerated for 3-5 days.

4. The preparation method according to claim 1, characterized in that: The raw materials also include one or two of Rhodococcus fanqingshengii Ac-P fermentation liquid or peanut shell extract; The preservation number of the Rhodococcus fanqingshengii Ac-P is CGMCC No.32243.

5. The preparation method according to claim 4, characterized in that: The preparation method of the fermentation bacterial liquid of Rhodococcus fanqingsheng's Ac-P is as follows: inoculate Rhodococcus fanqingsheng's Ac-P in a #48 liquid culture medium, and culture at a constant temperature of 25-40° C. with shaking until the growth logarithmic phase.

6. The preparation method according to claim 4, characterized in that: The cow dung, biologically active water and the fermentation bacterial liquid of Rhodococcus fanqingshengii Ac-P are mixed in a mass volume ratio of 1 g: 10-20 mL: 0.5-1 mL, and aerated for 3-5 days.

7. The preparation method according to claim 4, characterized in that: The preparation method of the peanut shell extract comprises the following steps: drying and crushing the peanut shell to obtain peanut shell powder, using the bioactive water of claim 2 as an extraction solvent, ultrasonically extracting to obtain a peanut shell extract, and concentrating and drying to obtain the peanut shell extract.

8. The preparation method according to claim 4, characterized in that: The cow dung, biologically active water and the peanut shell extract are mixed in a mass volume ratio of 1 g: 10-20 mL: 0.03-0.08 g and aerated for 3-5 days.

9. The deodorizing functional liquid fertilizer obtained by the preparation method described in any one of claims 1 to 8.

10. Use of the deodorizing functional liquid fertilizer according to claim 9 in treating malodorous gases in livestock and poultry breeding, wherein the malodorous gases include NH3 and H2S.

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