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Ballast water bactericide and preparation method thereof

A technology of ballast water and fungicides, applied in botany equipment and methods, biocides, disinfectants, etc., can solve problems such as increased costs, operational complexity, failure to meet standards, etc., to promote a virtuous circle and enhance synergy effect, the effect of reducing environmental pollution

Inactive Publication Date: 2013-06-05
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, each of these single methods has its own advantages and disadvantages. When used alone, none of them can meet the IMO (International Maritime Organization) standard for ballast water treatment. When used in combination, it will undoubtedly increase the cost and operational complexity.

Method used

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  • Ballast water bactericide and preparation method thereof
  • Ballast water bactericide and preparation method thereof
  • Ballast water bactericide and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The shells of the mussels were soaked in an aqueous NaOH solution with a concentration of 1% by mass for 0.5 hours, and then soaked in an aqueous solution of HCl with a concentration of 5% by mass for 0.5 hours. After soaking, rinse with distilled water, dry, and then grind to a particle size of 150 μm with a roller mill.

[0048] Calcining and activating the shell powder obtained above at 800°C for 1 hour, adding 0.5% by mass of sodium stearate and mixing, stirring evenly, drying, and then sieving to obtain an active shell skeleton material with a particle size of 150 μm.

[0049] The active shell skeleton material and dodecyl dimethyl benzyl ammonium chloride are fully and uniformly mixed in a mass ratio of 7:2 to obtain the powdered ballast water fungicide of the present invention.

Embodiment 2

[0051] Soak the shells of pearl oyster and meretrix meretrix with a mass percentage concentration of 2% for 1 hour with a mass ratio of 1:1, and then use a mass percentage concentration of 5% H 2 SO 4 Soak in water solution for 1 hour. After soaking, rinse with distilled water, dry, and then grind to a particle size of 160 μm with a roller mill.

[0052] Calcinate and activate the shell powder obtained above at 900°C for 1.5 hours, add 1% of its mass of sodium dodecylbenzenesulfonate and mix, stir evenly, dry, and then sieve to obtain active shells with a particle size of 160 μm Skeleton material.

[0053] The active shell skeleton material and octyldiethylbenzylammonium sulfite are fully and uniformly mixed in a mass ratio of 8:2 to obtain the powdered ballast water fungicide of the present invention.

Embodiment 3

[0055] The shells of the clams were soaked in 2% NaOH aqueous solution for 0.7 hours, and then soaked in 5% HCl aqueous solution for 0.8 hours. After soaking, rinse with distilled water, dry, and then grind to a particle size of 170 μm with a roller mill.

[0056] Calcinate and activate the above-mentioned shell powder at 1000°C for 2 hours, add 2.5% of its mass of sodium lauryl alcohol ether sulfate and mix, stir evenly, dry, and then sieve to obtain active shells with a particle size of 170 μm Skeleton material.

[0057] The active shell skeleton material and pentadecyldipropylphenylpropylammonium bromide are fully and uniformly mixed in a mass ratio of 7:3 to obtain the powdered ballast water fungicide of the present invention.

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Abstract

The invention discloses a ballast water bactericide and a preparation method thereof. The preparation method uses a natural biological material, namely a shell, as a main raw material, forms an active material for a shell framework through pretreatment and modification of an activating agent, and prepares the bactericide by compounding a positive ion surfactant. The bactericide not only can be used for removing possible external plankton in ballast water, but also has stronger killing effect on various pathogenic bacteria in the ballast water through the synergistic effect of the micro-porous adsorption function of the shell material and the sterilization function of the positive ion surfactant, so that the killing rate can be more than 99%. The ballast water bactericide provided by the invention is applicable to the microbiological treatment of the ballast water of a tanker and other ships, and has obvious sterilization treatment effect and very good application prospect.

Description

technical field [0001] The invention relates to a ballast water treatment agent, in particular to a ballast water bactericide and a preparation method thereof, belonging to the field of water treatment and purification of ship water. Background technique [0002] Ballast water, also known as ballast water, is seawater or fresh water filled in the bottom and side tanks of the ship for the purpose of maintaining the balance of the hull and ensuring the safety of operation. When the ship is empty, ballast water needs to be injected into the tank, and when it is loaded in port, the ballast water needs to be de-ballasted. According to incomplete statistics, about 10 billion tons of ballast water are drawn and discharged as ships load and unload cargo in different ports every year in the world, and more than 3,000 species of marine plants and animals are transferred away with ballast water every day original place. Ballast water carries a large number of pathogenic bacteria, vir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/12A01N25/08A01N25/30A01P1/00
Inventor 竺柏康
Owner ZHEJIANG OCEAN UNIV
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