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Bactericide for treating papermaking wastewater and preparation method thereof

A technology of papermaking wastewater and bactericide, which is applied in the field of water treatment, can solve the problems that other harmful substances cannot be treated as a whole, and the bactericidal effect is general, and achieve the effect of reducing content, good effect, and high bactericidal rate

Inactive Publication Date: 2016-03-16
JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]Technical problem to be solved: Aiming at the shortcomings of the existing papermaking wastewater treatment agents, which have general bactericidal effect and cannot treat other harmful substances as a whole, the present invention provides a treatment Bactericide for papermaking wastewater and preparation method thereof

Method used

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  • Bactericide for treating papermaking wastewater and preparation method thereof

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Embodiment 1

[0018] A bactericide for treating papermaking wastewater, containing the following components in parts by mass: 5 parts of dichlorovinyl salicylamide, 30 parts of ethyl cellosolve, 32 parts of isophorone, 5 parts of tributyltin oxide, 1 part of alkyl benzene sulfonic acid, 1 part of ethyl allicin, 0.5 part of methylene dithiocyanate, 1 part of coral sand, 0.3 part of cuprous oxide, 1 part of calcium hydroxide, ethylene thiuram monosulfide 1 part of mol, 0.4 part of ferrous sulfate.

[0019] A preparation method of a bactericide for treating papermaking wastewater. The steps of the preparation method are as follows:

[0020] Step 1: Combine dichlorovinyl salicylamide, ethyl cellosolve, isophorone, tributyl tin oxide, alkylbenzene sulfonic acid, ethyl allicin, methylene dithiocyanate, Coral sand, cuprous oxide, calcium hydroxide, ethylene thiuram monosulfide, and ferrous sulfate are added to the reaction kettle, and the stirring is started at 100r / min;

[0021] The second step: Raise...

Embodiment 2

[0024] A bactericide for treating papermaking wastewater, containing the following components in parts by mass: 15 parts of dichlorovinyl salicylamide, 50 parts of ethyl cellosolve, 45 parts of isophorone, 15 parts of tributyltin oxide, Alkylbenzene sulfonic acid 5 parts, ethyl allicin 4 parts, methylene dithiocyanate 2.5 parts, coral sand 4 parts, cuprous oxide 0.7 parts, calcium hydroxide 4 parts, ethylene thiuram monosulfide 5 parts per gram and 1.2 parts of ferrous sulfate.

[0025] A preparation method of a bactericide for treating papermaking wastewater. The steps of the preparation method are as follows:

[0026] Step 1: Combine dichlorovinyl salicylamide, ethyl cellosolve, isophorone, tributyl tin oxide, alkylbenzene sulfonic acid, ethyl allicin, methylene dithiocyanate, Coral sand, cuprous oxide, calcium hydroxide, ethylene thiuram monosulfide, and ferrous sulfate are added to the reaction kettle, and the stirring is started at a speed of 200r / min;

[0027] Step 2: Raise t...

Embodiment 3

[0030] A bactericide for treating papermaking wastewater, containing the following components in parts by mass: 13 parts of dichlorovinyl salicylamide, 45 parts of ethyl cellosolve, 42 parts of isophorone, 13 parts of tributyltin oxide, 4 parts of alkyl benzene sulfonic acid, 3 parts of ethyl allicin, 2 parts of methylene dithiocyanate, 3.5 parts of coral sand, 0.6 part of cuprous oxide, 3 parts of calcium hydroxide, ethylene thiuram monosulfide 1 part of ferrous sulfate.

[0031] A preparation method of a bactericide for treating papermaking wastewater. The steps of the preparation method are as follows:

[0032] Step 1: Combine dichlorovinyl salicylamide, ethyl cellosolve, isophorone, tributyl tin oxide, alkylbenzene sulfonic acid, ethyl allicin, methylene dithiocyanate, Coral sand, cuprous oxide, calcium hydroxide, ethylene thiuram monosulfide, and ferrous sulfate are added to the reactor, and the stirring is started at a speed of 150r / min;

[0033] Step 2: Raise the temperature...

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Abstract

The invention relates to a bactericide for treating papermaking wastewater and a preparation method thereof. The bactericide comprises the following components in parts by mass: 5-15 parts of dichloroethenyl salicylamide, 30-50 parts of an ethyl cellosolve, 32-45 parts of isophorone, 5-15 parts of tributyltin oxide, 1-5 parts of alkylbenzene sulfonic acid, 1-4 parts of ethyl allicin, 0.5-2.5 parts of methylene bisthiocyanate, 1-4 parts of coral sand, 0.3-0.7 part of cuprous oxide, 1-4 parts of calcium hydroxide, 1-5 parts of ethylenethiuram monosulfide, and 0.4-1.2 parts of ferrous sulfate. The bactericide provided by the invention can effectively eliminate bacteria in the papermaking wastewater, and has high bacteria inhibitory and bactericidal rate especially for sulfate reducing bacteria; and at the same time, the bactericide also can effectively reduce the content of various harmful substances in the wastewater and has good effect on treatment of the papermaking wastewater.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a bactericide for treating papermaking wastewater and a preparation method thereof. Background technique [0002] The paper industry uses wood, straw, reeds, rags, etc. as raw materials, and cellulose is separated by high-temperature and high-pressure cooking to make pulp. Papermaking wastewater mainly comes from the two production processes of pulping and papermaking in the papermaking industry. Pulping is to separate the fibers in the plant raw materials, make pulp, and then bleach it. This process will generate a lot of papermaking wastewater; papermaking is to dilute, shape, squeeze, and dry the pulp to make paper. The process is also prone to papermaking wastewater. In the production process, the non-cellulose part of the raw material is finally discharged to become papermaking black liquor. The black liquor contains lignin, cellulose, volatile organic acids, etc....

Claims

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Application Information

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IPC IPC(8): C02F1/50C02F103/28
CPCC02F1/50C02F2103/28
Inventor 程功弼仲英豪
Owner JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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