Environment-friendly composite water treatment agent and application thereof

A water treatment agent and composite technology, applied in the field of water treatment, can solve the problems of polluted water environment, poor biodegradation performance, good scale inhibition effect, etc., and achieve good biodegradability effect

Active Publication Date: 2015-01-28
GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used water treatment agents for central air-conditioning cooling water mainly include polyphosphates, organic phosphines and inorganic salts. These scale and corrosion inhibitors are economical and efficient, but the biodegradability of polyphosphates and organic phosphines Poor, and the discharge of phosphorus-containing substances into the environment will cause eutrophication of the water body and seriously pollute the water en

Method used

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  • Environment-friendly composite water treatment agent and application thereof
  • Environment-friendly composite water treatment agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] Preparation of compound medicine: Add sodium molybdate and tetradecyldimethylbenzyl ammonium chloride to water, add polyepoxysuccinic acid (average molecular weight 1200, concentration 40%), polyglutamic acid ( The average molecular weight is 6000), sodium lauroyl sarcosinate, so that the mass percentage of each component is: polyepoxysuccinic acid 20%, polyglutamic acid 13%, sodium molybdate 25%, sodium lauroyl sarcosinate 12% %, tetradecyl dimethyl benzyl ammonium chloride 15%, mixed and stirred evenly to obtain a composite water treatment agent.

[0020] The scale inhibition, corrosion inhibition and sterilization effects of the water treatment agents provided in this example are shown in Table 1.

Example Embodiment

[0021] Example 2

[0022] Preparation of compound medicine: Add sodium molybdate and tetradecyldimethylbenzyl ammonium chloride to water, add polyepoxysuccinic acid (average molecular weight 1200, concentration 55%), polyglutamic acid ( The average molecular weight is 7000), sodium lauroyl sarcosinate, so that the mass percentage of each component is: polyepoxysuccinic acid 25%, polyglutamic acid 15%, sodium molybdate 20%, sodium lauroyl sarcosinate 15% %, tetradecyl dimethyl benzyl ammonium chloride 10%, mixed and stirred evenly to obtain a composite water treatment agent. The scale inhibition, corrosion inhibition and sterilization effects of the water treatment agents provided in this example are shown in Table 1.

Example Embodiment

[0023] Example 3

[0024] Preparation of compound medicine: Add sodium molybdate and tetradecyldimethylbenzyl ammonium chloride to water, add polyepoxysuccinic acid (average molecular weight 1200, concentration 55%), polyglutamic acid ( The average molecular weight is 7000), sodium lauroyl sarcosinate, so that the mass percentage of each component is: polyepoxysuccinic acid 18%, polyglutamic acid 12%, sodium molybdate 20%, sodium lauroyl sarcosinate 15% %, 20% tetradecyl dimethyl benzyl ammonium chloride, mixed and stirred evenly to obtain a composite water treatment agent.

[0025] The scale inhibition, corrosion inhibition and sterilization effects of the water treatment agents provided in this example are shown in Table 1.

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Abstract

The invention discloses an environment-friendly composite water treatment agent which is especially suitable for circulating cooling water of a central air conditioner. The water treatment agent comprises the following components by mass percent: 15-30% of polyepoxysuccinic acid, 10-20% of polyglutamic acid, 15-40% of sodium molybdate, 10-20% of sodium lauroyl sarcosinate, 10-25% of tetradecyl dimethyl benzyl ammonium chloride and the balance of water. When the dosage of the composite formula is 10mg/ L, the scale inhibition rate reaches more than 90%, so that the corrosion rate of carbon steel is lower than 0.075mm/a, the corrosion rates of red copper and stainless steel are lower than 0.005mm/ a, and the sterilizing rate reaches more than 85%.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a green and environment-friendly composite water treatment agent for central air-conditioning circulating cooling water treatment. Background technique [0002] The central air-conditioning cooling water system is an open loop system composed of cooling water pumps, pipelines, cooling towers, condensers of refrigerators, and sumps. The notable feature of this system is that the ratio of retained water (that is, system water capacity) to circulating water is very small. The make-up water of the cooling water system is basically tap water with high impurity content, so the concentration of the cooling water can reach 8 to 10 times in a short period of time. If proper treatment is not carried out, scaling, corrosion and biological slime will inevitably occur, leading to a series of problems such as pipeline blockage, corrosion leakage, greatly reduced heat transfer effici...

Claims

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Application Information

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IPC IPC(8): C02F5/10C02F5/12C02F5/08C02F1/50
CPCC02F5/105C02F5/125C02F2303/04C02F2303/08C02F2303/22
Inventor 李茂东朱志平杨波代陈林陈志刚黎华陈映桐郭思学张辉
Owner GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
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