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A kind of phosphorus-free reclaimed water reuse reverse osmosis membrane antiscalant and preparation method thereof

A technology of reverse osmosis membrane and scale inhibitor, which is applied in the field of reverse osmosis scale inhibitor and dispersant and its preparation, can solve the problems of insignificant corrosion inhibition effect and large dosage, and achieve excellent scale inhibition and dispersion performance and high sterilization rate. , good compatibility effect

Active Publication Date: 2015-08-12
JINAN LUDONG ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the dosing concentration is large, and molybdate needs a suitable oxidant to help it form a protective film (oxidation film) on the metal surface, so the effect is obvious in open circulating cooling water, and corrosion inhibition in closed circulating cooling water no significant effect

Method used

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  • A kind of phosphorus-free reclaimed water reuse reverse osmosis membrane antiscalant and preparation method thereof
  • A kind of phosphorus-free reclaimed water reuse reverse osmosis membrane antiscalant and preparation method thereof
  • A kind of phosphorus-free reclaimed water reuse reverse osmosis membrane antiscalant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor, the components are as follows, all in parts by weight:

[0047]

[0048] The preparation method of the above-mentioned phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor, the steps are as follows:

[0049] Turn on the vacuum pump and pump acrylic acid-2-acrylamide-2-2 methylpropanesulfonic acid copolymer, polyepoxysuccinic acid, polyaspartic acid, benzisothiazolinone and deionized water into the reaction in sequence Inside the cauldron. Stir at room temperature for 1 hour to prepare a phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor.

Embodiment 2

[0051] A phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor, the components are as follows, all in parts by weight:

[0052]

[0053] The preparation method of the above-mentioned phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor, the steps are as follows:

[0054] Turn on the vacuum pump, and draw carboxylate-sulfonate-nonionic terpolymer, polyepoxysuccinic acid, polyaspartic acid benzisothiazolinone and deionized water into the reactor in proportion. Stir at room temperature for 1 hour to prepare a phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor.

Embodiment 3

[0056] A phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor, the components are as follows, all in parts by weight:

[0057]

[0058] The preparation method of the above-mentioned phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor, the steps are as follows:

[0059] Turn on the vacuum pump and scale acrylic-2-acrylamide-2-2-methylpropanesulfonic acid copolymer, acrylic acid-acrylate-sulfonate-copolymer, polyepoxysuccinic acid, polyaspartic acid, benziso Thiazolone and deionized water are pumped into the reactor in sequence. Stir at room temperature for 2 hours to prepare a phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor.

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Abstract

The invention relates to a reverse osmosis membrane scale inhibitor for reusing non-phosphorus reclaimed water and a preparation method of the reverse osmosis membrane scale inhibitor. The reverse osmosis membrane scale inhibitor for reusing the non-phosphorus reclaimed water comprises the following components: a sulfonate copolymer, polyepoxysuccinic acid, polyaspartic acid, benzisothiazolinone and deionized water. The invention also relates to the preparation method of the reverse osmosis membrane scale inhibitor for reusing the non-phosphorus reclaimed water. According to the reverse osmosis membrane scale inhibitor for reusing the non-phosphorus reclaimed water and the preparation method of the reverse osmosis membrane scale inhibitor, phosphorus and carboxylic acid homopolymers are not contained, thus the environment can be protected well on the premise that the scale inhibiting effect is ensured, and the generation of the calcium phosphate scale and the calcium gel is avoided.

Description

technical field [0001] The invention relates to a phosphorus-free reclaimed water reuse reverse osmosis membrane scale inhibitor and a preparation method thereof, in particular to a reverse osmosis scale inhibitor dispersant used in a reclaimed water reuse reverse osmosis system and a preparation method thereof, belonging to water treatment technical field. Background technique [0002] The contradiction between the shortage of water resources and the aggravation of water environment pollution in our country is becoming increasingly prominent. Therefore, it is necessary to establish a sustainable development strategy for water resources with the goal of saving water and cleaning water, improving the quality of water environment, and improving the comprehensive utilization of water resources. Efficient water treatment technology, strengthening the reuse of urban sewage and industrial wastewater, and improving the recycling rate of urban sewage and industrial wastewater reuse c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D65/08C02F5/12C02F1/44
Inventor 王冬生潘兴灿
Owner JINAN LUDONG ENVIRONMENTAL PROTECTION SCI & TECH
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