阅读说明：本技术 一种液体肥料及其使用方法 (Liquid fertilizer and application method thereof ) 是由 李源 叶青 叶宝兴 胡训文 于 2020-06-19 设计创作，主要内容包括：本发明提供了一种液体肥料及其使用方法,属于资源再利用及肥料制备技术领域。本发明提供的液体肥料以竹柳湿法炭化废水为主成分,由于竹柳湿法炭化废水中含有多酚类物质,使液体肥料具有抑制细菌作用；竹柳湿法炭化废水中含有的矿质元素,保证了液体肥料有充足的微量元素；另外加入的糖醇螯合铁,进一步增加了液体肥料中的铁矿质元素的含量；腐殖酸的加入增加了液体肥料的肥效；有机硅助剂的加入能够增强液体肥料渗透性能,提高了液体肥料肥效的发挥。实施例的数据表明：本发明提供的液体肥料对油菜和苋菜的产量提高效果显著。(The invention provides a liquid fertilizer and a using method thereof, belonging to the technical field of resource recycling and fertilizer preparation. The liquid fertilizer provided by the invention takes the bamboo willow wet carbonization wastewater as a main component, and the liquid fertilizer has the function of inhibiting bacteria because the bamboo willow wet carbonization wastewater contains polyphenol substances; mineral elements contained in the bamboo willow wet carbonization wastewater ensure that the liquid fertilizer has sufficient trace elements; in addition, the content of iron ore elements in the liquid fertilizer is further increased by adding the sugar alcohol chelated iron; the addition of humic acid increases the fertilizer efficiency of the liquid fertilizer; the organic silicon additive can enhance the permeability of the liquid fertilizer and improve the fertilizer efficiency of the liquid fertilizer. The data of the examples show that: the liquid fertilizer provided by the invention has obvious effect of improving the yield of rape and amaranth.)

1. The liquid fertilizer is characterized by comprising the following components in parts by weight:

100-120 parts of bamboo willow wet carbonization wastewater, 2-8 parts of humic acid, 0.1-0.4 part of sugar alcohol chelated iron and 0.4-0.8 part of organic silicon additive;

the bamboo willow wet carbonization wastewater is wastewater collected in a bamboo willow wet carbonization reaction process, and comprises organic acid compounds, polyphenols and mineral elements; the mass percentage of the organic acid compound is 5-12%, the mass percentage of the polyphenol substance is 8-16%, and the mass percentage of the mineral element is 0.1-0.3%.

2. The liquid fertilizer according to claim 1, comprising the following components in parts by weight: 100 parts of bamboo willow wet carbonization wastewater, 5 parts of humic acid, 0.2 part of sugar alcohol chelated iron and 0.5 part of organic silicon auxiliary agent.

3. The liquid fertilizer according to claim 1, comprising the following components in parts by weight: 120 parts of bamboo willow wet carbonization wastewater, 8 parts of humic acid, 0.4 part of sugar alcohol chelated iron and 1.0 part of organic silicon auxiliary agent.

4. The liquid fertilizer according to claim 1, 2 or 3, characterized in that the silicone auxiliary is a silicone containing ethoxy-modified polytrisiloxane as a main component.

5. The liquid fertilizer as claimed in claim 1, 2 or 3, wherein the bamboo willow wet carbonization wastewater is prepared by a method comprising the following steps:

peeling the bamboo willow, and longitudinally rolling and slitting to obtain wood bundles;

carbonizing the wood beam by a wet method, and collecting liquid generated in the wet carbonization process to obtain carbonization reaction liquid;

and adding activated carbon powder into the carbonization reaction liquid for adsorption, centrifuging, and standing the obtained liquid to obtain the bamboo willow wet carbonization wastewater.

6. The liquid fertilizer according to claim 5, wherein the bamboo willow is bamboo willow No. 3, 5 or 7.

7. The liquid fertilizer according to claim 5, wherein the wet carbonization pressure is 0.18-0.22 MPa, the temperature is 130-160 ℃, and the heat preservation and pressure maintaining time is 150-300 min.

8. The liquid fertilizer according to claim 7, wherein the pressure of the wet carbonization is achieved by introducing water vapor.

9. The liquid fertilizer as claimed in claim 5, wherein the amount of the activated carbon powder is 10 to 20% by weight of the carbonization reaction liquid.

10. The method for using the liquid fertilizer as claimed in any one of claims 1 to 9, wherein the volume ratio of the liquid fertilizer to water is 1: (80-150) times of diluted solution is sprayed outside roots; or the liquid fertilizer and water are mixed according to the volume ratio of 1: (40-60) diluting and then irrigating roots.

Technical Field

The invention relates to the technical field of resource recycling and fertilizer preparation, in particular to a liquid fertilizer and a using method thereof.

Background

In the process of producing the recombined wood by using the bamboo willow, the bamboo willow is required to be placed in a closed container, high-pressure saturated steam is introduced, and wet carbonization is carried out. In the carbonization process, high-pressure steam is condensed and the bamboo willow dissolves out substances to form carbonization wastewater. The carbonized wastewater has high temperature, large acidity, high COD value and difficult degradation, and is directly discharged to cause environmental pollution.

Disclosure of Invention

In view of the above, the present invention aims to provide a liquid fertilizer and a use method thereof. The liquid fertilizer provided by the invention recycles the bamboo willow wet carbonization wastewater, and realizes the recycling of the bamboo willow wet carbonization wastewater; meanwhile, the obtained liquid fertilizer has excellent fertilizer efficiency.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides a liquid fertilizer which comprises the following components in parts by weight:

100-120 parts of bamboo willow wet carbonization wastewater, 2-8 parts of humic acid, 0.1-0.4 part of sugar alcohol chelated iron and 0.4-0.8 part of organic silicon additive;

the bamboo willow wet carbonization wastewater is wastewater collected in a bamboo willow wet carbonization reaction process, and comprises organic acid compounds, polyphenols and mineral elements; the mass percentage of the organic acid compound is 5-12%, the mass percentage of the polyphenol substance is 8-16%, and the mass percentage of the mineral element is 0.1-0.3%.

Preferably, the liquid fertilizer comprises the following components in parts by weight: 100 parts of bamboo willow wet carbonization wastewater, 5 parts of humic acid, 0.2 part of sugar alcohol chelated iron and 0.5 part of organic silicon auxiliary agent.

Preferably, the liquid fertilizer comprises the following components in parts by weight: 120 parts of bamboo willow wet carbonization wastewater, 8 parts of humic acid, 0.4 part of sugar alcohol chelated iron and 1.0 part of organic silicon auxiliary agent.

Preferably, the organosilicon auxiliary agent is organosilicon with ethoxy modified polytrisiloxane as a main component.

Preferably, the bamboo willow wet carbonization wastewater is prepared by a method comprising the following steps:

peeling the bamboo willow, and longitudinally rolling and slitting to obtain wood bundles;

carbonizing the wood beam by a wet method, and collecting liquid generated in the wet carbonization process to obtain carbonization reaction liquid;

and adding activated carbon powder into the carbonization reaction liquid for adsorption, centrifuging, and standing the obtained liquid to obtain the bamboo willow wet carbonization wastewater.

Preferably, the bamboo willow is bamboo willow No. 3, bamboo willow No. 5 or bamboo willow No. 7.

Preferably, the pressure of the wet carbonization is 0.18-0.22 MPa, the temperature is 130-160 ℃, and the heat preservation and pressure maintaining time is 150-300 min.

Preferably, the pressure of the wet carbonization is achieved by introducing water vapor.

Preferably, the amount of the activated carbon powder is 10-20% of the weight of the carbonization reaction liquid.

The invention also provides a use method of the liquid fertilizer, which is characterized in that the liquid fertilizer and water are mixed according to the volume ratio of 1: (80-150) times of diluted solution is sprayed outside roots; or the liquid fertilizer and water are mixed according to the volume ratio of 1: (40-60) diluting and then irrigating roots.

The invention provides a liquid fertilizer, which takes bamboo willow wet carbonization wastewater as a main component, and the liquid fertilizer has the function of inhibiting bacteria because the bamboo willow wet carbonization wastewater contains polyphenol substances; mineral elements contained in the bamboo willow wet carbonization wastewater ensure that the liquid fertilizer has enough trace elements; in addition, the content of iron ore elements in the liquid fertilizer is further increased by adding the sugar alcohol chelated iron; the addition of humic acid increases the fertilizer efficiency of the liquid fertilizer; the organic silicon additive can enhance the permeability of the liquid fertilizer and improve the fertilizer efficiency of the liquid fertilizer. The data of the examples show that: the liquid fertilizer provided by the invention has obvious effect of improving the yield of rape and amaranth.

Detailed Description

The invention provides a liquid fertilizer which comprises the following components in parts by weight:

100-120 parts of bamboo willow wet carbonization wastewater, 2-8 parts of humic acid, 0.1-0.4 part of sugar alcohol chelated iron and 0.4-0.8 part of organic silicon additive;

the bamboo willow wet carbonization wastewater is wastewater collected in a bamboo willow wet carbonization reaction process, and comprises organic acid compounds, polyphenols and mineral elements; the mass percentage of the organic acid compound is 5-12%, the mass percentage of the polyphenol substance is 8-16%, and the mass percentage of the mineral element is 0.1-0.3%.

The liquid fertilizer provided by the invention comprises 100-120 parts by weight of bamboo willow wet carbonization wastewater, and is preferably 110 parts.

In the invention, the bamboo willow wet carbonization wastewater is preferably prepared by a method comprising the following steps:

peeling the bamboo willow, and longitudinally rolling and slitting to obtain wood bundles;

carbonizing the wood beam by a wet method, and collecting liquid generated in the wet carbonization process to obtain carbonization reaction liquid;

and adding activated carbon powder into the carbonization reaction liquid for adsorption, centrifuging, and standing the obtained liquid to obtain the bamboo willow wet carbonization wastewater.

The bamboo willow is peeled, and longitudinally rolled and cut into strips to obtain the wood bundle.

In the invention, the bamboo willow is preferably bamboo willow No. 3, bamboo willow No. 5 or bamboo willow No. 7. The bamboo willow peeling operation is not particularly limited, and the peeling operation known to the skilled person can be adopted. The parameters of the longitudinal rolling slitting are not particularly limited in the invention, and the parameters of the longitudinal rolling slitting which are well known to those skilled in the art can be adopted.

After the wood beam is obtained, the wood beam is carbonized by a wet method, and liquid generated in the process of carbonization by the wet method is collected to obtain carbonization reaction liquid.

In the invention, the pressure of the wet carbonization is preferably 0.18-0.22 MPa, and more preferably 0.2 MPa; the temperature is preferably 130-160 ℃, and is further preferably 140-150 ℃; the heat preservation and pressure maintaining time is preferably 150-300 min, and more preferably 180-240 min. In the present invention, the pressure of the wet carbonization is preferably controlled by introducing water vapor.

In the present invention, the wet carbonization is preferably performed in a high-pressure sealed tank.

After the carbonization reaction liquid is obtained, adding activated carbon powder into the carbonization reaction liquid for adsorption, centrifuging, and standing the obtained liquid to obtain the bamboo willow wet carbonization wastewater.

In the invention, the temperature of the carbonization reaction liquid is preferably 70-80 ℃. In the present invention, the amount of the activated carbon powder is preferably 10 to 20% by weight, and more preferably 15% by weight, of the carbonization reaction liquid.

In the invention, the particle size of the activated carbon powder is preferably 0.4-0.6 mm; the source of the activated carbon powder is not specifically limited in the present invention, and commercially available products known to those skilled in the art may be used, specifically: 40-mesh shell activated carbon powder produced by green beneficial environmental protection science and technology limited company in Changgu city. In the invention, the added active carbon powder can adsorb part of tar substances and decolor in the carbonization reaction liquid.

In the invention, the adsorption is preferably carried out under the condition of stirring, and the rotating speed of the stirring is preferably 80-100 r/min; the stirring time is preferably 30-120 min; the stirring temperature is preferably 60-80 ℃.

In the invention, the rotation speed of the centrifugation is preferably 2500-5000 r/min, more preferably 3000-4500 r/min, and even more preferably 3500-400 r/min.

In the invention, the standing time is preferably 15 to 25 days.

In the invention, the organic acid compounds in the bamboo willow wet carbonization wastewater comprise acetic acid, dicarboxylacetone, propionic acid and butyric acid; the mass percentage of the organic acid compound is 5-12%. In the invention, the polyphenols in the willow wet carbonization wastewater comprise phenol, methyl phenol, dimethyl phenol, ethyl phenol and guaiacol; the mass percentage of the polyphenols is 8-16%. In the invention, mineral elements in the willow wet carbonization wastewater comprise calcium, potassium, zinc, magnesium, sodium and iron; the mass percentage of the mineral elements is 0.1-0.3%.

The liquid fertilizer disclosed by the invention takes the bamboo willow wet carbonization wastewater as a main raw material, so that the bamboo willow wet carbonization wastewater is efficiently recycled, and partial elements and effective components can be provided for the liquid fertilizer.

Based on the weight parts of the bamboo willow wet carbonization wastewater, the liquid fertilizer provided by the invention comprises 2-8 parts of humic acid by weight, and preferably 5-6 parts. The source of the humic acid is not particularly limited, and a commercially available product known to those skilled in the art can be used, and specifically, the humic acid is purchased from the company of chemical industry, heart-in-heart, Henan.

Based on the weight parts of the bamboo willow wet carbonization wastewater, the liquid fertilizer provided by the invention comprises 0.1-0.4 part of sugar alcohol chelated iron, and preferably 0.2-0.3 part. The source of the iron chelate of sugar alcohol of the present invention is not particularly limited, and commercially available products known to those skilled in the art may be used. In the invention, the sugar alcohol chelated iron can provide iron element, mannitol, sorbitol, xylitol, glycerol and the like, and can carry nutrients to smoothly enter into the phloem of the plant for nutrient transportation.

Based on the weight parts of the bamboo willow wet carbonization wastewater, the liquid fertilizer provided by the invention comprises 0.4-0.8 part of organic silicon additive, preferably 0.5-0.7 part, and more preferably 0.6 part. In the invention, the organosilicon auxiliary agent is preferably organosilicon with ethoxy modified polytrisiloxane as a main component; specifically, china agricultural silicone of china bio-technology ltd, shijiazhuang china, silicone products using DCorning 5211 of Dowcorning, usa as a raw material, and silicone products using L-77 of momentive, meiji as a raw material. In the invention, the organic silicon auxiliary agent is used to improve the permeability of the liquid fertilizer and fully exert the fertility of the liquid fertilizer.

The method for preparing the liquid fertilizer is not particularly limited, and the method for preparing the mixture well known to those skilled in the art can be adopted.

The invention also provides a use method of the liquid fertilizer. In the invention, the volume ratio of the liquid fertilizer to water is 1: (80-150) times of diluted solution is sprayed outside roots; or the liquid fertilizer and water are mixed according to the volume ratio of 1: (40-60) diluting and then irrigating roots.

The liquid fertilizer provided by the invention can be applied to any plants, such as rape and amaranth.

The liquid fertilizer and the method for using the same according to the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.