CN1256171C

CN1256171C - Biochemical liquid of humate in application for purifying air indoors

Info

Publication number: CN1256171C
Application number: CN 200410022135
Authority: CN
Inventors: 文正贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-23
Filing date: 2004-03-23
Publication date: 2006-05-17
Anticipated expiration: 2024-03-23
Also published as: CN1562448A

Abstract

The present invention relates to the biochemical liquid of humate in application for purifying indoor air, which is characterized in that the biochemical liquid of the humate is formed by mixing the dilute solution of sodium humate / potassium humate and the emulsion of humate iron. The present invention comprises the following procedures that the sodium humate / the potassium humate is prepared; the emulsion of the humate iron is prepared; the dilute solution of the sodium humate / the potassium humate is prepared; the biochemical liquid of the humate is prepared; the prepared biochemical liquid of the humate is injected into a purifying barrel of an air purifying device, and an inflation pump of the air purifying device is started to pump the indoor air into the biochemical liquid of the humate in the purifying barrel to remove harmful gases and absorbable particles in the indoor air and kill bacterium; finally, the purified air is exhausted from an exhaust outlet of the purifying barrel. Thus, with the reciprocating circulation, the indoor air is purified. The present invention has a function of integrative purification, can remove various harmful gases and absorbable particles in the indoor air simultaneously, and can suppress or kill various bacterium. The present invention also has the advantages of obvious effect and no secondary pollution. Thereby, the present invention is suitable for purifying the indoor air of households, recreation rooms, offices, etc.

Description

Application of humate biochemical liquid in purifying indoor air

Technical Field

The invention relates to an indoor air purification technology, in particular to application of humate biochemical liquid in purifying indoor air.

Background

Indoor environments are the main place where people live, work, and socialize, and most of the life time of people is spent in indoor environments. The human beings can not survive in the air, and the fresh air is breathed to be beneficial to the health of the human bodies. However, typically 50% -60% of the room air is recycled, up to 90% of the air being recycled in the conditioned room. Indoor decoration materials, furniture coatings and harmful substances released by partial household appliances and particulate matters in air cause increasingly serious pollution to indoor air, and according to related research reports that the harmful substances polluting the indoor air are more than hundreds of types, wherein the harmful substances having the greatest influence on human health can be roughly divided into two categories: one is harmful gas, such as sulfur dioxide, nitrogen dioxide, carbon monoxide, carbon dioxide, ammonia, formaldehyde, ozone, benzene, benzo [ a]pyrene, etc.; secondly, the particles can be inhaled, including dust, smog, pollen and various harmful microorganism bacteria. The harmful gases and inhalable particles are enriched in indoor air, and people stay in the environment for a long time, and then the symptoms such as headache, dizziness, tiredness, somnolence, even breath disorder, arrhythmia, mental disorder and the like 'building syndrome' can occur. According to the survey statistics of international related organizations, harmful gases are found in 30% of new and reconstructed buildings worldwide and cause an increase in the morbidity and mortality of the global population. Therefore, the indoor environmental problem has become a focus of attention and discussion, which draws high attention from all countries in the world, and a great deal of manpower, material resources and financial resources are invested to control indoor air pollution, and a strict indoor air quality standard is established, and technologies for controlling indoor air pollution emerge endlessly. Such as air freshener, deodorization sundry fungus tablet, oil smoke smell-removing tablet, microwave vibration air purifier, high-efficiency ultraviolet sterilizer, etc. The products and the equipment for purifying the indoor air are effective in removing part of harmful gases or absorbable particles in the indoor air, have poor comprehensive functions and unobvious effects, and cause secondary pollution in some cases. Recently, sodium/potassium humate biochemical agents have been developed for large-area deodorization in refuse dumps. The technology fully and effectively utilizes the physical and biochemical characteristics of humic acid, sprays the sodium/potassium humate biochemical agent on the garbage, can quickly and thoroughly remove the odor of the garbage, and can kill fly pupa, maggot and clarify the garbage leachate.

Disclosure of Invention

The invention aims to disclose application of humate biochemical liquid in indoor air purification, which can efficiently remove various harmful gases in the indoor air, adsorb inhalable particles and kill bacteria without secondary pollution.

The invention relates to an application of humate biochemical liquid in purifying indoor air, which is characterized in that the adopted humate biochemical liquid is a mixed liquid of sodium/potassium humate diluent and ferric humate emulsion, the indoor air passes through the mixed liquid under the action of an air pump of an air purifying device to remove harmful gas and inhalable particles in the indoor air and kill bacteria, and then the purified air is discharged from an exhaust port of a purifying barrel of the air purifying device. The application of the humate biochemical liquid in purifying indoor air comprises the following steps:

(1) preparing sodium/potassium humate by taking peat or lignite or weathered coal as a raw material, adding alkali, and mixing the raw materials in percentage by weight: taking the materials according to the weight ratio of alkali to water of 100: 8.5-9.5: 400-500, pouring the materials into a reaction kettle with a stirrer, heating the materials to 70-130 ℃ for 1 hour, controlling the pH value of a reaction extract to be 9-11, precipitating to obtain sodium humate/potassium colloidal liquid, and drying the sodium humate/potassium colloidal liquid by a tower dryer to prepare powdery or granular sodium humate/potassium humate, wherein the content of humic acid is more than 50 percent, and the content of water-insoluble substances is less than 15 percent. The prepared sodium/potassium humate is an organic macromolecular compound, has no toxicity, no odor and no secondary pollution, and is mainlyThe constituent elements are carbon, oxygen, hydrogen, nitrogen and sulfur, and the average molecular weight thereof is between 1000-1400. The physical property isThe air purifier has colloid property and large inner surface area, is similar to loose sponge, and has strong adsorption capacity, thereby being capable of adsorbing harmful gas and inhalable particles in indoor air; the chemical property is that the structure is complex, the macromolecule contains a plurality of functional groups, the solution is alkalescent, and has strong ion exchange capacity, so that harmful metal ions can be removed in the contact with pollutants, and bacteria can be killed; because the molecule of the compound contains benzene rings, condensed rings and various heterocycles, the rings are connected by a bridge bond, and the rings and the branched chains have carboxyl, hydroxyl, methoxyl, amino and the like, the compound is determined to have acidity, hydrophilicity and ion exchange property, and also has stronger complexing and chelating capacity and adsorption capacity, and can prevent and remove harmful gases in indoor air; and because the main functional groups in the molecules of the ionic liquid have negative charges, the ionic liquid can capture and degrade harmful ions released in the air such as organic solvents, alkanes, aromatic hydrocarbons, esters and the like; humic acid containing 1 × 10¹⁷-4×10¹⁸Free radicals per gram, which belong to the semiquinone structure, can be oxidized to quinones and reduced to phenols, and are therefore donors and acceptors of electrons. However, under the influence of external conditions, such as radiation from indoor computers and microwave ovens, ultraviolet radiation, pollution of volatile gases, cigarette combustion, etc., molecules are subject to external energy and are split into radicals containing unpaired valence electrons, i.e., free radicals. The free radicals have very high activity and are easily self-combined into stable molecules or reacted with molecules of other substances to generate new free radicals. The reaction between free radical and molecule is self-maintained and continuous. Thereby removing harmful gas from the chamber.

(2) Preparing iron humate, taking materials according to the weight ratio of ferrous sulfate, sodium humate/potassium colloidal solution and water of 0.1: 1: 10, pouring the materials into a reaction kettle with a stirrer, heating to 70-100 ℃, and boiling the reaction solution until the reaction solutionis boiled to generate the iron humate through an emulsification reaction.

(3) Preparing sodium humate/potassium diluent, taking the sodium humate/potassium humate/water according to the weight ratio of 1: 50-100, pouring the mixture into a container, and uniformly stirring;

(4) preparing humate biochemical solution, taking the material according to the weight ratio of the ferric humate emulsion to the sodium humate/potassium humate diluent of 1: 3, and pouring the material into a container to be uniformly stirred.

(5) Injecting the prepared humate biochemical liquid into a purification barrel of the air purification device, starting an inflator pump of the air purification device, pumping indoor air into the sodium humate/potassium biochemical liquid in the purification barrel, removing harmful gases and inhalable particles in the indoor air, killing bacteria, discharging the purified air from an exhaust port of the purification barrel, and circularly repeating the steps to purify the indoor air.

The humate biochemical liquid can remove various harmful gases and inhalable particles in the air and kill bacteria.

SO₂Is colorless and irritant toxic gas, is easily soluble in water when in gas state, can be adsorbed by organic acid glue solution, under normal conditions, 1 volume of water can dissolve 40 volumes of SO₂Sulfur dioxide can also oxidize hydrogen sulfide odor with reducing property in the solution into elemental sulfur;

NO₂is a red brown toxic gas with special stimulating odor, can be dissolved in water or absorbed by humic acid solution, and contains NO₂Absorbed to generate nitrous acid and nitric acid which react to form ；

CO is colorless, tasteless, odorless and non-irritant harmful gas, is slightly soluble in water, and can be adsorbed by humic acid solution colloid; the solution of ferric humate has lipophilicity and hydrophilicity, iron ions in the solution can prevent and control the harm of CO, and the iron ions and CO generate carbonyl compounds Fe (CO)²⁺；

CO₂Is a colorless and odorless gas, is easily dissolved in water, is easily absorbed by alkali liquor (NaOH) in a purifier, and reacts to obtain ；

Ammonia is colorless and strongly irritantGas in the form of NH₃And NH₄ ⁺The basic equilibrium in water can be represented by the following formula: the humic acid solution contacts with ammonia gas in the air and reacts rapidly to generate ammonium salt without pungent odor, and the reaction formula is as follows: ；

formaldehyde is colorless and easily soluble irritant gas, and 40% aqueous solution of formaldehyde can be used as disinfectant and is easily absorbed and adsorbed by colloidal solution;

benzene is colorless or light yellow transparent oily liquid, has strong aromaticity, and is volatile and flammable; the volatile gas contains a large amount of free radicals which react with free radicals contained in humic acid to combine into stable molecules or generate new free radicals;

the toluene and the xylene are colorless transparent liquid and have volatility, and the removal of free radicals contained in volatile gas is similar to that of benzene;

benzo [ a]pyrene, can be captured and degraded by the functional group with negative charge in humic acid; most of them are insoluble in water and various organic solvents, but easily soluble in lipophilic substances, and easily adsorbed on the particles of fly ash.

Inhalable particles refer to particles with the aerodynamic equivalent diameter less than or equal to 10um suspended in air, and the sponge colloid fluid of humic acid can adsorb the inhalable particles.

Bacteria including nonpathogenic saprophytic microorganisms such as bacillus, leucobacter, micrococcus, actinomycetes, yeast and the like, and pathogenic microorganisms from human body such as tubercle bacillus, diphtheria bacillus, hemolytic streptococcus, staphylococcus aureus, meningococcus, cold and measles virus, which are too many parasitic on particles in the air, and bacteria of pathogenic microorganisms in the air are inhibited or killed by adsorption in the humic acid solution because the pH value of the humic acid solution is 9-10 weak alkaline;

radon is a metal ion, is the only natural radioactive inert gas of natural wheel generated by decay of radium, and isNo color, nor any odor; when radon gas is absorbed into the humic acid solution, not only can salt be generated in a general way, but also functional groups on side chains can be reacted with CU²⁺、Fe³⁺、U⁴⁺Forming complex or chelate by divalent and polyvalent metal ions to remove metal radon ions;

ozone (O)₃) Is an oxygen homomorphic body which is colorless and has special odor, the spongiform fluid of the humic acid can absorb ozone, and free radicals contained in oxygen-containing functional groups of the humic acid can remove the ozone.

Compared with the prior art, the invention has comprehensive purification function, can simultaneously remove various harmful gases and inhalable particles in indoor air and inhibit or kill various bacteria, has obvious effect and can not cause secondary pollution. Is suitable for the industrial field: special requirements of electronic factories, chemical factories, petrochemical factories, pharmaceutical factories, printing factories and the like, and special design and installation; the third industrial field: hotels, hospitals, barbershops, pet stores, etc.; the field of air conditioners is as follows: removing harmful substances, sterilizing, and deodorizing; the family field is as follows: living room, bedroom, office, etc.

Detailed Description

(1) Preparing sodium/potassium humate, taking peat or lignite or weathered coal as a raw material, adding alkali, taking materials according to the weight ratio of coal, alkali and water of 100: 8.5-9.5: 400 and 500, pouring the materials into a reaction kettle with a stirrer, heating to 70-130 ℃ for 1 hour, controlling the pH value of a reaction extract to be 9-11, precipitating to obtain sodium/potassium humate colloidal liquid, and drying to prepare powdery or granular sodium/potassium humate, wherein the content of humic acid is more than 50 percent, and the content of water insoluble substances is less than 15 percent;

(2) preparing ferric humate emulsion, taking materials according to the weight ratio of ferrous sulfate, sodium humate/potassium colloidal solution and water of 0.1: 1: 10, pouring the materials into a reaction kettle with a stirrer, heating to 70-100 ℃ for boiling the reaction solution, and carrying out an emulsion reaction to generate the ferric humate emulsion;

(4) preparing humate biochemical solution, taking the materials according to the weight ratio of the ferric humate emulsion to the sodium humate/potassium humate diluent of 1: 3, and pouring the materials into a container to be uniformly stirred;

(5) injecting the prepared humate biochemical liquid into a purification barrel of an air purification device, wherein the barrel is provided with a visual position device, starting an inflator pump of the air purification device, the pump is also provided with a timer, pumping indoor air into the sodium humate/potassium biochemical liquid in the purification barrel, removing harmful gas and inhalable particles in the indoor air, killing bacteria, discharging the purified air from the exhaust of the purification barrel, and circularly and repeatedly purifying the indoor air.

Claims

1. The application of humate biochemical liquid in purifying indoor air is characterized in that the adopted humate biochemical liquid is a mixed liquid of sodium/potassium humate diluent and ferric humate emulsion, and the preparation steps of the mixed liquid are as follows:

(1) preparing sodium/potassium humate, taking peat or lignite or weathered coal as a raw material, adding alkali, taking materials according to the weight ratio of coal, alkali and water of 100: 8.5-9.5: 400-500, pouring the materials into a reaction kettle with a stirrer, heating to 70-130 ℃ for 1 hour, controlling the pH value of a reaction extract to be 9-11, precipitating to obtain sodium/potassium humate colloidal liquid, and drying to prepare powdery or granular sodium/potassium humate, wherein the content of humic acid is more than 50 percent, and the content of water insoluble substances is less than 15 percent;

(2) preparing ferric humate emulsion, taking materials according to the weight ratio of ferrous sulfate, sodium humate/potassium colloidal solution and water of 0.1: 1: 10, pouring the materials into a reaction kettle with a stirrer, heating to 70-100 ℃ for boiling the reaction liquid, and carrying out an emulsion reaction to generate the ferric humate emulsion;

(5) injecting the prepared humate biochemical liquid into a purification barrel of the air purification device, starting an inflator pump of the air purification device, pumping indoor air into the sodium humate/potassium biochemical liquid in the purification barrel, discharging the purified air from exhaust of the purification barrel, and repeating the steps in this way.