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Water treatment agent and preparation method of same

A technology of water treatment agent and preparation steps, which is applied in the field of water treatment agent and its preparation, can solve the problems of increased cost, poor thermal stability, and large amount of water treatment agent, and achieve low cost of use, cleanliness, and excellent water purification effect Effect

Active Publication Date: 2018-03-02
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of the water treatment agent is large, which increases the cost, and the thermal stability is poor and easy to decompose

Method used

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  • Water treatment agent and preparation method of same
  • Water treatment agent and preparation method of same

Examples

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Effect test

Embodiment 1

[0016] A water treatment agent, its composition and parts by weight are: 22 parts of modified calcium lignosulfonate, 21 parts of straw, 4 parts of sodium alginate, 0.38 parts of sodium tartrate, 6.5 parts of sodium hypochlorite, 3.8 parts of polyepoxysuccinic acid, 17 parts of bamboo vinegar liquid, the above-mentioned straws are modified anion straws, cationic modified straws and amphoteric modified straws with a weight ratio of 1:1.2:1. The straws have good adsorption properties and can absorb anions and cations in water. It makes up for the shortcomings of traditional ionic adsorbents that can only deal with single ionic pollutants. In addition, the straw can be recycled many times and has a good application prospect; the weight ratio of L-sodium tartrate and D-sodium tartrate in sodium tartrate is 1:0.14, the interaction between L-sodium tartrate, D-sodium tartrate and 4-aminobenzenesulfonate in the sodium tartrate can quickly form a layer of insoluble, thin and dense corr...

Embodiment 2

[0022] A water treatment agent, its composition and parts by weight are: 30 parts of modified calcium lignosulfonate, 17 parts of straw, 7 parts of sodium alginate, 0.31 parts of sodium tartrate, 7 parts of sodium hypochlorite, 4 parts of polyepoxysuccinic acid, 14 parts of bamboo vinegar liquid, above-mentioned straw is the modified anion straw of 1:1.5:0.8 weight ratio, cationic modified straw and amphoteric type modified straw; In sodium tartrate, the weight ratio of L-sodium tartrate and D-sodium tartrate is 1:0.17.

[0023] A kind of preparation method of water treatment agent, concrete steps are:

[0024] 1) Take H with a weight ratio of 1:0.75 2 o 2 and calcium lignosulfonate, H 2 o 2 The concentration is 35%, adding Fe(OH) of 0.6% by weight of lignosulfonic acid 3 , react at 70°C for 50 minutes, centrifuge after the reaction, add absolute ethanol to precipitate the modified wood calcium, centrifuge, repeat 4 times, and dry at 70°C to obtain calcium lignosulfonate ...

Embodiment 3

[0028] A water treatment agent, its composition and parts by weight are: 25 parts of modified calcium lignosulfonate, 19 parts of straw, 6 parts of sodium alginate, 0.35 parts of sodium tartrate, 7 parts of sodium hypochlorite, 3.5 parts of polyepoxysuccinic acid, 15 parts of bamboo vinegar liquid, above-mentioned straw is the modified anion straw of 1:1.3:0.9 weight ratio, cationic modified straw and amphoteric type modified straw; In sodium tartrate, the weight ratio of L-sodium tartrate and D-sodium tartrate is 1:0.15.

[0029] A kind of preparation method of water treatment agent, concrete steps are:

[0030] 1) Take H with a weight ratio of 1:0.8 2 o 2 and calcium lignosulfonate, H 2 o 2 The concentration is 30%, adding Fe(OH) of 0.7% by weight of lignosulfonic acid 3 , react at 65°C for 55 minutes, centrifuge after the reaction, then add absolute ethanol to precipitate the modified wood calcium, centrifuge, repeat 3 times, and dry at 65°C to obtain calcium lignosulf...

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Abstract

The invention discloses a water treatment agent and a preparation method of same. The water treatment agent includes, by weight, 20-30 parts of modified calcium lignosulfonate, 16-22 parts of straw, 4-7 parts of sodium alginate, 0.3-0.4 parts of sodium tartrate, 6-9 parts of sodium hypochlorite, 3-4 parts of polyepoxysuccinic acid, and 12-17 parts of bamboo vinegar. The preparation method of the water treatment agent includes the steps of: hydroxylation modification to calcium lignosulfonate, preparation of modified calcium lignosulfonate, and preparation of the water treatment agent. The water treatment agent has functions of inhibiting corrosion, flocculating foreign matters, inhibiting scaling and sterilizing water, is low in usage amount and use cost, can prevent scaling and depositionof iron, copper and silicon in a water circulation system, and maintains interior of the water circulation system to be clean and corrosion-free. The raw materials of the water treatment agent have wide sources and the preparation method is simple and is easy to carry out industrially. The water treatment agent has no environment-pollution after use and has great development potential.

Description

technical field [0001] The invention relates to the field of environmental science and technology, in particular to a water treatment agent and a preparation method thereof. Background technique [0002] In the context of global population growth and rapid industrialization, people's demand for natural water resources is increasing. As for the supply of natural water resources, due to factors such as increasingly serious pollution, climate change, and sinking of groundwater, the shortage of water resources available to human beings has intensified. Therefore, my country's water resource conditions do not allow industrial water to grow too fast, and industrial water must be based on water conservation and water use efficiency. Therefore, strengthening industrial water conservation and recycling is an important way to alleviate the shortage of water resources. In industrial water, circulating cooling water is generally used to increase the reuse rate of water, and increasing...

Claims

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Application Information

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IPC IPC(8): C02F5/08C02F5/10
CPCC02F5/105C02F2303/04C02F2303/08C02F2303/22
Inventor 孙静亚
Owner ZHEJIANG OCEAN UNIV
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