CN104396953A - Novel efficient germicide and algicide and preparation process thereof - Google Patents

Abstract

The invention discloses a novel efficient germicide and algicide and a preparation process thereof. The novel efficient germicide and algicide comprises the following raw materials in percentage by weight: 25-35% of dichloroether, 20-35% of tetramethylethylene diamine, 0.5-5% of dodecyl dimethyl tertiary amine, 0.1-2% of phase transfer agents, 0.1-0.5% of initiator and the balance of deionized water. The novel efficient germicide and algicide belongs to a non-oxidizing germicide and algicide, the germicide and algicide effect is good, and the novel efficient germicide and algicide has good dispersion, seepage and slime removal effects; foam is not produced when the novel efficient germicide and algicide is used, the effect of the novel efficient germicide and algicide lasts for a long period of time, the consumption of the novel efficient germicide and algicide is low, 6-10 ppm (parts per million) of the novel efficient germicide and algicide can have a good use effect in water, and the novel efficient germicide and algicide does not corrode equipment or pipelines and is safe and reliable to use, transport and store and environmentally friendly.

Description

A kind of new and effective Biocidal algae-killing agent and preparation technology thereof

Technical field

The present invention relates to water treatment agent field, be specially a kind of new and effective Biocidal algae-killing agent and preparation technology thereof.

Background technology

Biocidal algae-killing agent is oxidizing and non-oxidizable, and what current oxydixing sterilization algicide was commonly used has chlorine-containing compound, peroxide, bromine-containing compound etc. to have the compound of oxidation susceptibility.These compounds generally have the effect of killing livestock of the microorganism in water strong, sterilization algae removal speed is fast, effect of killing livestock broad spectrum activity is high, disposal cost is low, but it is larger by the impact of organic matter, reducing substances and pH value in water, medicament is short for effective time, consumption is large, it is high to add the frequency, and dispersion, infiltration and peeling effect are poor.What non-oxydizing sterilization algicide was conventional is isothiazolinone, quaternary ammonium salt (such as dodecylbenzyl ammonium chloride), aldehydes, chlorophenols and compound product thereof etc.Isothiazolinone, aldehydes, chlorophenols bactericidal property are better but algae removal and sludge stripping poor-performing and aldehydes, chlorophenols toxicity are comparatively large, inadequate environmental protection; Still consumption is large all very well for quaternary ammonium salt sterilization algae removal and sludge stripping performance, produces a large amount of foam and cause instrument to indicate distortion during use.

Summary of the invention

The object of the present invention is to provide a kind of new and effective Biocidal algae-killing agent and preparation technology thereof, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the invention provides following technical scheme:

A kind of new and effective Biocidal algae-killing agent is prepared from by the raw material of following percentage by weight:

Dichloroether 25-35%;

Tetramethylethylenediamine 20-35%;

Dodeca-tertiary amine 0.5-5%;

Consisting of phase-transferring agent 0.1 ~ 2%;

Initator 0.1 ~ 0.5%;

Deionized water surplus.

As the further scheme of the present invention, described consisting of phase-transferring agent is tetrabutyl ammonium bromide.

As the further scheme of the present invention, described initator is potassium iodide.

A preparation technology for new and effective Biocidal algae-killing agent, comprises the steps:

1) by dichloroether, tetramethylethylenediamine, dodeca-tertiary amine, consisting of phase-transferring agent, initator and deionized water, to add by a certain percentage in reactor and to start stirring;

2) above-mentioned solution is heated to 85-95 DEG C, insulation reaction 6-8 hour;

3) then above-mentioned solution temperature is down to less than 50 DEG C, blowing, obtains this new and effective Biocidal algae-killing agent.

Compared with prior art advantage of the present invention: this new and effective Biocidal algae-killing agent belongs to non-oxydizing sterilization algicide, its sterilization, algae removal are effective, and have good dispersion, infiltration and sludge stripping effect; Non-foam in use, lasting medicine and consumption few (6 ~ 10ppm just can reach good result of use in water), and corrosion-free to equipment, pipeline; Use, transport, storage safe is reliable, environmentally safe.

Embodiment

embodiment 1

New and effective Biocidal algae-killing agent, is equipped to 100% solution and adds in reactor and to start stirring by 30% dichloroether of percentage by weight, 30% tetramethylethylenediamine, 3% dodeca-tertiary amine, 1.5% tetrabutyl ammonium bromide, 0.2% potassium iodide and balance deionized water; Above-mentioned solution is heated to 90 DEG C, insulation reaction 7 hours; Then above-mentioned solution temperature is down to 30 DEG C, namely blowing obtains this new and effective Biocidal algae-killing agent.

The index of new and effective Biocidal algae-killing agent

Lab work	Result of laboratory test
		Outward appearance	The uniform transparency liquid of orange colour
Viscosity (mpa.s)	287 （ 25℃）
		Density (g/cm 3）	1.133（25℃）
Solid content (%)	63.87
		PH	7.77

From substance reaction mechanism and product and product viscosity, the product gone out by this prescription and explained hereafter belongs to more complicated polyphosphazene polymer quaternary ammonium salt.

Sterilization, algae removal mechanism:

Polyphosphazene polymer quaternary ammonium salt, belongs to strong cation polymer; Cation, by effects such as electrostatic force, hydrogen bond force and the hydrophobic bindings between surface-active and protein molecule, adsorbs electronegative bacterial body, is gathered on cell wall, generating chamber's inhibition effect, cause bacterial growth suppressed and dead; Simultaneously its hydrophobic alkyl can also with the hydrophilic group effect of bacterium, change the permeability of film, then lysis occur, destroy cell structure, cause dissolving and the death of cell.This bactericide belongs to non oxidizing bactericide, there is wide spectrum, efficiently sterilization algae removal ability, effectively can control bacterium algae propagation and foundry loam growth in water, and there is good sludge stripping effect and certain dispersion, osmosis, have simultaneously certain to deoil, deodorizing capability, grow have special efficacy in order to control water system bacterium algae.

Bactericidal assay:

A, heterotroph bactericidal assay

Test period: 17 days ~ May 27 May in 2013

Bactericidal assay water: certain cycle water

Test with medicament: new and effective Biocidal algae-killing agent

Bactericidal property evaluation means: measure heterotroph (heterotroph is the main affecting factors of microorganism in water) in water

Test method: plate count (GB/T14643-1993)

Test procedure and data

(1), test procedure:

1, (numbering is respectively: 1 to get the beaker of 31 liter ^#, 2 ^#, 3 ^#add certain cycle water 1000mL respectively)

2, add the new and effective Biocidal algae-killing agent that every milliliter contains 2 milligrams in beaker successively, 2.0mL, 3.0 mL, 4.0 mL, mixing is (so 1 ^#, 2 ^#, 3 ^#respectively containing new and effective Biocidal algae-killing agent 4ppm in beaker, 6ppm, 8ppm).

3, get that certain cycle water (for test is blank) not adding new and effective Biocidal algae-killing agent carries out inoculating, dilutes, cultivates, several heterotrophism bacterium colony (counting).

4,1 ^#, 2 ^#, 3 ^#add new and effective Biocidal algae-killing agent in beaker after 48 hours, carry out respectively inoculating, dilute, cultivate, number heterotrophism bacterium colony (counting).

(2), test data: table one

Other Biocidal algae-killing agent bactericidal assay data are in table two (test method and test water the same):

table two

Toxicity test:

Get 1000ml underground water respectively in 5 1000ml beakers, then add 5 kinds of medicaments in table three respectively, drug concentration reaches 500ppm, then respectively puts a sizable little paradise fish of China, observes the situation of change of fish.

Table three

result of use:

On June 9th, 2014 carries out commercial Application in China electricity certain power plant 5# unit circulation, and applicable cases is as follows:

This generating set is 300MW, its supporting circulation, and quantity of circulating water is 3 × 10 ⁴m ³/ h, possessing the water yield is 2 × 10 ⁴m ³, with underground water as cycle water.The Biocidal algae-killing agent that past produces with a Shandong water treatment agent factory, every two months of winter added once, and summer monthly adds once, each dosage 150ppm(3 ton).Before adding Biocidal algae-killing agent of the present invention, cooling tower column is surrounded by the thick blackish green moss of about 3 ~ 5mm and bur, and the turbidity of cycle water is 13NTU, and in water, heterotroph number is 5 × 10 ⁶individual/ml, iron bacteria is 638/ml, and sulfate reducing bacteria is 163/ml; To add after Biocidal algae-killing agent 10g/m3 of the present invention non-foam in (200Kg) cycle water, after 24 hours, moss starts to get loose, moss after 48 hours on cooling tower column comes off and reaches 60%, the turbidity of cycle water is 86NTU, moss after 96 hours on cooling tower column almost all comes off, column is exposed, and turbidity of circulating water reaches 180NTU, and heterotroph number is 5/ml, iron bacteria is 0/ml, and sulfate reducing bacteria is 0/ml;

On October 29th, 2014, this power plant added again a deuterzooid medicament, and adding concentration is also 10mg/L, and now cooling tower has meagre light green color moss on the column of sunny side, and heterotroph number is 9.3 × 10 ²individual/ml, iron bacteria is 38/ml, and sulfate reducing bacteria is 13/ml; Dosing 48 hours, moss is all disappeared, and all column of cooling tower now true qualities entirely, heterotroph number is 0/ml, and iron bacteria is 0/ml, and sulfate reducing bacteria is 0/ml.

By above data and phenomenon known, the Biocidal algae-killing agent of the present invention's development is environmentally friendly product, is tall and erect effect, lasting, significant and consumption is few, non-foam, achieves excellent effect to the control of the microorganism of water system, foundry loam and algae.

Above embodiment is only introduces preferred case of the present invention, to those skilled in the art, not deviating from any apparent changes and improvements of carrying out in the scope of spirit of the present invention, all should be regarded as a part of the present invention.

Claims (4)

1. a new and effective Biocidal algae-killing agent, is characterized in that, is to be prepared from by the raw material of following percentage by weight:

Dichloroether 25-35%;

Tetramethylethylenediamine 20-35%;

Dodeca-tertiary amine 0.5-5%;

Consisting of phase-transferring agent 0.1 ~ 2%;

Initator 0.1 ~ 0.5%;

Deionized water surplus.

2. a kind of new and effective Biocidal algae-killing agent as claimed in claim 1, is characterized in that, described consisting of phase-transferring agent is tetrabutyl ammonium bromide.

3. a kind of new and effective Biocidal algae-killing agent as claimed in claim 1, is characterized in that, described initator is potassium iodide.

4. a preparation technology for new and effective Biocidal algae-killing agent as claimed in claim 1, is characterized in that, comprise the steps:

1) by dichloroether, tetramethylethylenediamine, dodeca-tertiary amine, consisting of phase-transferring agent, initator and deionized water, to add by a certain percentage in reactor and to start stirring;

2) above-mentioned solution is heated to 85-95 DEG C, insulation reaction 6-8 hour;

3) then above-mentioned solution temperature is down to less than 50 DEG C, blowing, obtains this new and effective Biocidal algae-killing agent.