CN100515199C - Powder preparation for inhibiting sulfate reducing bacteria activity by adopting tourmaline carried cobalt - Google Patents
Powder preparation for inhibiting sulfate reducing bacteria activity by adopting tourmaline carried cobalt Download PDFInfo
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- CN100515199C CN100515199C CNB2007100727711A CN200710072771A CN100515199C CN 100515199 C CN100515199 C CN 100515199C CN B2007100727711 A CNB2007100727711 A CN B2007100727711A CN 200710072771 A CN200710072771 A CN 200710072771A CN 100515199 C CN100515199 C CN 100515199C
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- tourmaline
- cobalt
- reducing bacteria
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- sulfate reducing
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Abstract
The utility model provides a powder using the tourmaline carrying cobalt to restrain the sulfate reducing bacteria activity and the preparation method thereof, relating to a bacteriostatic agent and a preparation method thereof, which aims to resolve problems that the present natural antibacterial agent is hard to be promoted, and that the safety and heat tolerance of the organic antibacterial agent which is easy to decompose and has short service life are bad. The percentage by mass of the tourmaline is 60 to 99.99 percent and the percentage by mass of the cobalt chloride is 0.01 to 40 against the invention. The preparation method is that: first, the nanometer tourmaline or submicron tourmaline is put into and mixed with the deionized water; second, the nitrate solution is added in order to adjust the PH value to 4 to 8; third, the cobalt and dispersing agent are added and mixed; forth, the mixing solution is cleaned by the deionized water after decompression and separation; fifth, the powder which undergoes the separation and cleaning processes is dried; sixth, the dried power is ground and burned, and then is grinded again to become the inorganic bacteria-restrained powder. With the invention which uses the nanometer tourmaline or submicron tourmaline applying the surface modification, ion exchange and solid phase synthesis method, the invention not only increases the cobalt-carrying quantity, but also improves the sterilization effect of the bacteriostatic agent.
Description
Technical field
The present invention relates to antibacterial pulvis, especially crude tourmaline carries the inorganic antibacterial pulvis of cobalt.
Background technology
In recent years, along with the accelerated development of national economy, the industrial wastewater particularly pollution of sulfate wastewater is more and more serious, and the underground water in a lot of cities of China has been subjected to sulfate contamination in various degree.Sulfur acid salt acidic waste water directly enters water body without processing will cause the receiving water body acidifying, reduce water pH value, and produce potential corrosion; This class acidic waste water also can destroy soil structure, reduces crop yield.The sulfate wastewater latency period is long, though the activity of nature reduction bacterium is arranged, do not have tangible negative effect at short notice, in case because of long-term accumulation forms pollution in wide area, the difficulty of administering is very big, and particularly in oilfield process, the breeding of sulfate reducing bacteria can cause a lot of harm, for example: corrosion product in the ground system (being mainly water-fast metal sulfide) causes the water body blackout, and suspended solid amount increases.The activity that how effectively to suppress sulfate reducing bacteria has become a problem of being paid close attention to very much of field produces.
At present, it is 3 big classes that the kind of antibacterial agent can be divided into inorganic system, organic system and natural biological substantially: inorganic antiseptic combines by high efficiency, the broad spectrum activity of stability that inorganic material is intrinsic and antimicrobial component, successfully overcome the shortcoming of organic antibacterial agent, inorganic bacteriostatic agent and bactericide then be meant with inorganic material most of for natural or artificial mineral's material etc. as carrier, be loaded with a kind of novel inorganic antiseptic that the metallic element that possesses certain antibacterial ability and metal ion and the antibacterial material of nanometer are developed; When selecting organic antibacterial agent for use, except that considering its safety, also there is poor heat resistance in the existing quite long history of the application of organic antibacterial agent, easily decomposes and problem such as service life is short; Natural antibacterial agent is extract with the natural plants mainly, and serious waste of resources has been applied certain difficulty.
What be published in that the paper " research of crude tourmaline carrying silver antimicrobials " of Yunnan University's journal in 2006 proposed a kind of employing is the natural tourmaline theory as antibacterial agent, the tourmaline particle diameter that adopts is about 20 μ m, synthetic method mainly is a solid-phase synthesis, form by the ground and mixed calcining, but also there is the waste resource in this method, applies the shortcoming of certain difficulty.
Summary of the invention
The present invention is for solving the particularly with serious pollution problem of sulfate wastewater of existing industrial wastewater, and sulfate reducing bacteria powder in a kind of inorganic inhibition industrial wastewater that adopts tourmaline carried cobalt is provided.
Employing tourmaline carried cobalt of the present invention suppresses the pulvis of sulfate reducing bacteria activity and is made up of tourmaline and cobalt chloride solid, tourmaline is 60～99.99% by mass percentage, the cobalt chloride solid is 0.01～40%, through mix, oven dry, grind, calcining and grind again and make.
Preparation method's step of the pulvis of employing tourmaline carried cobalt inhibition sulfate reducing bacteria activity of the present invention is as follows:
Step 2, in the aaerosol solution that step 1 obtains, add nitrate solution 0.03mol/L, the pH value is adjusted to 4～8;
Step 3, add 0.01～40% cobalt chloride solid by mass percentage in the mixed solution that step 2 obtains, add the solid polyethylene glycol dispersant again, stirred 4～5 hours, the final concentration of polyethylene glycol dispersant in system is 1.5～2.5%;
Step 4, step 3 is carried out decompress filter separate to obtain sediment, with deionized water washing and precipitating thing;
Step 5, the powder after will separating through step 4, cleaning be placed in the thermostatic drying chamber and dry with 90～110 ℃;
Step 6, will grind through the powder of step 5 oven dry, the powder after the grinding was calcined in 200～800 ℃ 2～4 hours, to after calcining the back powder and grinding once more, promptly obtained the inorganic inhibiting sulfate reducing bacteria powder of tourmaline carried cobalt.
The chemical composition of tourmaline mineral is very complicated, after the 1950's its crystal structure being determined, just proposes relatively rational structure general formula, and its general formula is expressed as: XY
3Z
6Si
6O
18(BO
3)
3W
4, X is mainly by Na, Ca or comprise K in the formula, and perhaps the part room occupies; Y is mainly by Fe
2+(or) Mg
2+, Al
+ 3± Li
+Or Fe
3+, usually also by Mn
2+And Mn
3+Occupy; Z is mainly by Al
3+, Fe
3+Or Cr
3+Occupy, also may comprise Mg
2+And V
3+W is by OH
-, F
-, O
-2Occupy.X, Y, the atom of 3 positions of Z or ionic species can influence the color of tourmaline not simultaneously.The tourmaline crystal structure belongs to trigonal system, C
5 3v-R3m group is so tourmaline is the heteropolarity mineral.Tourmaline is with a wide range of applications as a kind of novel environment friendly material.
It is the tourmaline of nanometer or the sub-micron of 50～800nm that the present invention has adopted particle diameter, carries cobalt with surface modification and ion exchange and solid-phase synthesis, not only effectively raises and carries a cobalt amount, and improved the sulfate reducing bacteria sterilization effects.This inorganic bacteriostatic agent has tourmaline itself can produce anion, electric polarity, spontaneous polarization effect, piezoelectricity and far infrared radiation characteristic, has improved the surface area of contact; Has the bacteria resistance function that other bacteriostatic agents do not have simultaneously, to Escherichia coli fungistatic effect 100%; Can effectively improve redox potential, suppress the activity of sulfate reducing bacteria, make it no longer to carry out sulfate reduction, no longer produce hydrogen sulfide gas and sulphide; 100%, this antibacterial pulvis adds in the fibrous woven goods to the inhibiting rate of sulfate reducing bacteria, also is widely used in improvement and water body reparation that water pollutes.Antibacterial pulvis of the present invention has to be saved that resource, safety are good, good heat resistance, is difficult for decomposing and the characteristics of long service life.For reducing the influence of sulfate reducing bacteria, be with a wide range of applications to field produces and economic benefit aspect.
Description of drawings
Fig. 1 is tourmaline ESEM of the present invention (SEM) shape appearance figure, Fig. 2 is AFM (AFM) schematic diagram of tourmaline of the present invention, Fig. 3 is the SEM shape appearance figure of tourmaline carried cobalt of the present invention, Fig. 4 is the infrared spectrogram of tourmaline and tourmaline carried cobalt, Fig. 5 is the XRD figure of tourmaline carried former state, Fig. 6 is the XRD figure of tourmaline carried cobalt, and the XRD figure of tourmaline carried cobalt when Fig. 7 is 800 ℃, Fig. 8 are the inhibition figure of tourmaline carried cobalt to the activity of sulfate reducing bacteria.
Embodiment
Embodiment one: the tourmaline carried cobalt inorganic inhibiting sulfate reducing bacteria powder of present embodiment is made up of tourmaline and cobalt chloride solid, by mass percentage tourmaline be 60～99.99%, the cobalt chloride solid be 0.01～40% through mix, oven dry, grind, calcining and grind again and make.
Embodiment two: tourmaline is 60% to present embodiment by mass percentage, the cobalt chloride solid is 40% to make.Other composition is identical with embodiment one.
Embodiment three: tourmaline is 80% to present embodiment by mass percentage, the cobalt chloride solid is 20% to make.Other composition is identical with embodiment one.
Embodiment four: tourmaline is 99.99% to present embodiment by mass percentage, the cobalt chloride solid is 0.01% to make.Other composition is identical with embodiment one.
Embodiment five: preparation method's step of the pulvis of the employing tourmaline carried cobalt inhibition sulfate reducing bacteria activity of present embodiment is as follows:
Step 2, in the aaerosol solution that step 1 obtains, add nitrate solution 0.03mol/L, the pH value is adjusted to 4～8;
Step 3, add 0.01～40% cobalt chloride solid by mass percentage in the mixed solution that step 2 obtains, add the solid polyethylene glycol dispersant again, stirred 4～5 hours, the final concentration of polyethylene glycol dispersant in system is 1.5～2.5%;
Step 4, step 3 is carried out decompress filter separate to obtain sediment, with deionized water washing and precipitating thing;
Step 5, the powder after will separating through step 4, cleaning be placed in the thermostatic drying chamber and dry with 90～110 ℃;
Step 6, will grind through the powder of step 5 oven dry, the powder after the grinding was calcined in 200～800 ℃ 2～4 hours, to after calcining the back powder and grinding once more, promptly obtained the inorganic inhibiting sulfate reducing bacteria powder of tourmaline carried cobalt.
Embodiment six: the particle diameter of tourmaline is 10～700nm in the present embodiment step 1.Other step is identical with embodiment five.
Embodiment seven: getting tourmaline in the present embodiment step 1 by mass percentage is 70～95%.Other step is identical with embodiment five.
Embodiment eight: the concentration of polyethylene glycol dispersant in system in the present embodiment step 3 is 2%.Other step is identical with embodiment five.
Embodiment nine: the powder in the present embodiment step 5 is placed in the thermostatic drying chamber and dries with 100～105 ℃.Other step is identical with embodiment five.
Embodiment ten: the powder after grinding in the present embodiment step 6 is calcined 400～750 ℃ of temperature.Other step is identical with embodiment five.
Claims (4)
1, adopt tourmaline carried cobalt to suppress the pulvis of sulfate reducing bacteria activity in the industrial wastewater, it is made up of tourmaline and cobalt chloride solid, it is characterized in that by mass percentage that tourmaline is 60～99.99%, the cobalt chloride solid be 0.01～40% through mix, oven dry, grind, calcining and grind again and make.
2, employing tourmaline carried cobalt according to claim 1 suppresses the pulvis of sulfate reducing bacteria activity in the industrial wastewater, it is characterized in that by mass percentage that tourmaline is 60%, the cobalt chloride solid is 40% to make.
3, employing tourmaline carried cobalt according to claim 1 suppresses the pulvis of sulfate reducing bacteria activity in the industrial wastewater, it is characterized in that by mass percentage that tourmaline is 80%, the cobalt chloride solid is 20% to make.
4, employing tourmaline carried cobalt according to claim 1 suppresses the pulvis of sulfate reducing bacteria activity in the industrial wastewater, it is characterized in that by mass percentage that tourmaline is 99.99%, the cobalt chloride solid is 0.01% to make.
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|---|---|---|---|
| CNB2007100727711A CN100515199C (en) | 2007-09-06 | 2007-09-06 | Powder preparation for inhibiting sulfate reducing bacteria activity by adopting tourmaline carried cobalt |
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|---|---|---|---|
| CNB2007100727711A CN100515199C (en) | 2007-09-06 | 2007-09-06 | Powder preparation for inhibiting sulfate reducing bacteria activity by adopting tourmaline carried cobalt |
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| CN101116447A CN101116447A (en) | 2008-02-06 |
| CN100515199C true CN100515199C (en) | 2009-07-22 |
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| CN101717154B (en) * | 2009-11-30 | 2011-02-16 | 沈阳大学 | Complex biological growth promoter used for recovering river bottom sediment |
| CN112028471B (en) * | 2020-09-09 | 2022-08-26 | 九牧厨卫股份有限公司 | Inorganic antibacterial material for high-temperature ceramic and preparation method and application thereof |
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2007
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Non-Patent Citations (6)
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| 抗菌金属材料的开发. 金属功能材料. 2004 |
| 抗菌金属材料的开发. 金属功能材料. 2004 * |
| 无机抗菌剂的研究与应用. 徐瑛等.国外建材科技，第22卷第4期. 2001 |
| 无机抗菌剂的研究与应用. 徐瑛等.国外建材科技，第22卷第4期. 2001 * |
| 电气石基无机抗菌材料的研究. 王静等.2002年材料科学与工程新近展（上）-2002年中国材料研讨会论文集. 2002 |
| 电气石基无机抗菌材料的研究. 王静等.2002年材料科学与工程新近展(上)-2002年中国材料研讨会论文集. 2002 * |
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