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Phosphorus-free composite water treatment agent and preparation method thereof

A water treatment agent and formulation technology, applied in the field of phosphorus-free composite water treatment agent and its preparation, can solve the problems of easy generation of bacteria and algae in the system, unfriendly environment, zinc scale deposition, etc., and achieve good corrosion and scale inhibition performance, easy to Biodegradable, highly economical effect

Inactive Publication Date: 2012-07-11
SHANGHAI EMPEROR OF CLEANING HI TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the phosphorus-containing water treatment agent in the prior art is not friendly to the environment, or the cost of using a phosphorus-free formula is high and it is difficult to popularize and use, the zinc salt formula is easy to cause zinc scale deposition, and the sodium gluconate formula will also cause The system is easy to produce defects such as bacteria and algae, and provides a phosphorus-free composite water treatment agent with good corrosion and scale inhibition and environmental protection performance, phosphorus-free, non-toxic, easy to biodegrade, and low concentration and low cost. Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Prepare 100g of phosphorus-free composite water treatment agent

[0030] Phosphorus-free composite water treatment agent formula: polyaspartic acid (PASP) 18g, polyepoxysuccinic acid (PESA) 25g, sodium molybdate 5g, cerium oxide 4g, benzotriazole (BTA) 1g, deionized water 47g.

[0031] Preparation method: Add polyaspartic acid and polyepoxysuccinic acid into deionized water, stir while adding, then add benzotriazole, sodium molybdate and cerium oxide in sequence, and stir until uniform to obtain 100g of phosphorus-free composite water treatment agent.

[0032] 2. See the table below for the experimental water quality

[0033] Test water quality (local water quality in Shanghai)

[0034] water quality index

calcium hard

total alkalinity

total hardness

Cl -

SO 4 2-

pH

Conductivity

concentration

121

85

153

42

36

7.59

365

[0035] Note: The electrical conductivity is μ...

Embodiment 2

[0039] 1. Prepare 100g of phosphorus-free composite water treatment agent

[0040] Phosphorus-free composite water treatment agent formula: polyaspartic acid (PASP) 25g, polyepoxysuccinic acid (PESA) 30g, sodium molybdate 3g, cerium oxide 3g, benzotriazole (BTA) 1g, deionized water 38g.

[0041] Preparation method: Add polyaspartic acid and polyepoxysuccinic acid into deionized water, stir while adding, then add benzotriazole, sodium molybdate and cerium oxide in sequence, and stir until uniform to obtain 100g of phosphorus-free composite water treatment agent.

[0042] 2. See the table below for the experimental water quality

[0043] Test water quality (high hardness and high alkali water quality in the north)

[0044] water quality index

calcium hard

total alkalinity

total hardness

Cl -

SO 4 2-

pH

Conductivity

concentration

308

276

457

119

123

7.98

1087

[0045] 3. Add th...

Embodiment 3

[0048] 1. Prepare 100g of phosphorus-free composite water treatment agent

[0049] Phosphorus-free composite water treatment agent formula: polyaspartic acid (PASP) 15g, polyepoxysuccinic acid (PESA) 20g, sodium molybdate 8g, cerium oxide 5g, benzotriazole (BTA) 2g, deionized water 50g.

[0050] Preparation method: Add polyaspartic acid and polyepoxysuccinic acid into deionized water, stir while adding, then add benzotriazole, sodium molybdate and cerium oxide in sequence, and stir until uniform to obtain 100g of phosphorus-free composite water treatment agent.

[0051] 2. See the table below for the experimental water quality

[0052] Test water quality (low hardness and low alkali water quality in the south)

[0053] water quality index

calcium hard

total alkalinity

total hardness

Cl -

SO 4 2-

pH

Conductivity

concentration

31

45

43

16

24

7.72

101

[0054] 3. Add the prepared...

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PUM

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Abstract

The invention discloses a phosphorus-free composite water treatment agent and a preparation method thereof. The formula of the composite water treatment agent contains polyaspartic acid, polyepoxysuccinic acid, molybdate, cerium source, benzotriazole and / or methylbenzotriazole and water. The preparation method includes the following step that: according to the formula, the water, the polyaspartic acid, the polyepoxysuccinic acid, the benzotriazole and / or methylbenzotriazole, the molybdate and the cerium source are sequentially added and uniformly mixed. The composite water treatment agent has good corrosion-and-scale-inhibiting property, is highly environment-friendly, does not have phosphorus or toxin, and can be easily biodegraded, moreover, the dosage concentration is low, and the cost is low.

Description

technical field [0001] The invention relates to a phosphorus-free composite water treatment agent and a preparation method thereof. Background technique [0002] In the past 20 to 30 years, my country has issued a series of water quality standards and laws and regulations on water pollution prevention and control, but the development trend of water pollution has not been effectively controlled. A lot of industrial wastewater contains toxic and harmful substances, which cause serious pollution in most urban rivers in our country, leading to a decline in the quality of urban water sources and an increase in treatment costs, which seriously threaten the survival and health of human beings. It has a serious negative impact on the sustainable development strategy being implemented in our country, and the consequences are very serious. [0003] With the development of the economy, industrial water consumption is increasing day by day, and industrial circulating cooling water acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12
Inventor 王炜
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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