Multifunctional scale inhibitor capable of inhibiting multiple types of scale

A multi-functional, antiscalant technology, applied in the field of antiscalants, can solve the problems of secondary pollution of water bodies, less research and development of antiscalants, etc., achieve effective dispersion, good dispersion and dissolution ability, and improve the effect

Inactive Publication Date: 2017-05-31
SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, for the characteristics of landfill leachate, the total nitrogen, ammonia nitrogen, alkalinity, hardness, and heavy metals are very high. Most of the existing antiscalants contain phosphorus, etc., which will cause secondary pollution to the water body, and are specially designed for landfill leachate.

Method used

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  • Multifunctional scale inhibitor capable of inhibiting multiple types of scale
  • Multifunctional scale inhibitor capable of inhibiting multiple types of scale
  • Multifunctional scale inhibitor capable of inhibiting multiple types of scale

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 50kg of pure water, 25kg of carboxylic acid polymer, 10kg of sulfonic acid copolymer, and 15kg of imidazoline corrosion inhibitor into the reaction kettle, stir for 1 hour and mix well to get the new scale inhibitor 1#.

Embodiment 2

[0032] Add 55kg of pure water, 15kg of carboxylic acid polymer, 15kg of sulfonic acid copolymer, and 15kg of imidazoline corrosion inhibitor into the reaction kettle. After stirring for 1 hour and mixing evenly, the new scale inhibitor 2 is obtained. #.

Embodiment 3

[0034] Add 56kg of water, SF-16kg, DT-10135kg, 3kg of polyoxyethylene ether imidazoline into the reaction kettle, stir for 0.5 hours at a temperature of 30°, and mix well to obtain the new scale inhibitor 3 #.

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PUM

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Abstract

The invention provides a multifunctional scale inhibitor capable of inhibiting multiple types of scale according to landfill leachate characteristics. The multifunctional scale inhibitor is characterized by being prepared from, by mass, 6%-29% of carboxylic acid polymer, 1%-35% of sulfonic acid copolymer, 3%-19% of compound containing five-element heterocyclic nitrogen and the balance water. The scale inhibitor is environmentally friendly and efficient, is effective for multiple types of salt scale such as phosphate scale, sulfate scale, magnesium hydroxide and calcium carbonate, especially has the good inhibiting effect on calcium phosphate, is obvious in effect and free of phosphorus and does not cause secondary pollution to a water body.

Description

technical field [0001] The invention relates to the field of scale inhibitors, specifically, it is a scale inhibitor developed for the characteristics of landfill leachate, especially for phosphate scale, sulfate scale, magnesium hydroxide, calcium carbonate, etc. in high hardness water systems It is effective for many types of scale salts, especially a highly effective scale inhibitor with good inhibitory effect on calcium phosphate. Background technique [0002] During the process of stacking and landfilling garbage, due to biochemical degradation such as compaction and fermentation, and at the same time, a liquid with high concentration of organic or inorganic components is produced under the seepage of precipitation and groundwater, which we call landfill leachate. Also called leachate. There are many factors affecting the production of leachate, mainly including the rainfall in the landfill area, the nature and composition of the waste, the anti-seepage treatment of th...

Claims

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Application Information

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IPC IPC(8): C02F5/10C02F5/12C02F101/10C02F101/20C02F103/06
CPCC02F5/105C02F5/12C02F2101/10C02F2101/101C02F2101/105C02F2101/20C02F2103/06C02F2303/04
Inventor 张金山冉欢夏志先杜崇鑫
Owner SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH
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