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Green medicament used for zero discharge of circulating water

A green, environmentally friendly, circulating water technology, applied in the field of water treatment, can solve the problems of increasing slime adhesion, narrow application range, etc., and achieve the effect of saving water consumption and wide application range

Active Publication Date: 2016-08-24
SCI GREEN SHANDONG ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. 201410559323.4 discloses a scale and corrosion inhibitor that recycles all power plant wastewater into circulating water. It is safe, reliable, easy to configure, and convenient to use. However, the scope of application of this water treatment product is relatively narrow. , only effective for power plant wastewater; and the formula contains phosphorus, which is more likely to breed the growth of organisms in sewage containing organic matter, increasing the chance of slime adhesion

Method used

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  • Green medicament used for zero discharge of circulating water
  • Green medicament used for zero discharge of circulating water
  • Green medicament used for zero discharge of circulating water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The coking waste water of a certain coking plant in Shandong is used for the dynamic simulation test of circulating water, and the coking waste water is filled into the circulating water system, and the medicament of the present invention is added in the circulating water system, and the medicament is made by mixing the following raw materials in parts by weight: chitosan-excessive 28 parts of polyacrylamide graft copolymer, 20 parts of cinnamaldehyde, 12 parts of sulfamic acid, 0.5 part of sodium dialkyl sulfosuccinate, 0.5 part of 1,3,6,8-pyrene tetrasulfonic acid sodium salt, Water: balance, 100 parts in total. The water quality of the coking wastewater is:

[0023]

[0024] According to the water quality, the dosage is determined to be 400mg / L. The system has been in operation for 60 days without any sewage discharge in the middle, and the test piece and heat exchange tubes are not scaled or corroded, completely realizing zero sewage discharge.

Embodiment 2

[0025] Embodiment 2: The steelmaking waste water of a certain iron and steel factory in Shandong is used as a dynamic simulation test of circulating water, the waste water is filled into the circulating water system, and the medicament of the present invention is added in the circulating water system. The medicament is made by mixing the following raw materials in parts by weight: shell 30 parts of polysaccharide-hyperbranched polyacrylamide graft copolymer, 10 parts of cinnamaldehyde, 10 parts of vanillin, 13 parts of sulfamic acid, 0.6 part of fatty alcohol polyoxyethylene ether, 1,3,6,8-pyrene tetra 0.5 parts of sodium sulfonate, water: the balance, a total of 100 parts. The quality of the steelmaking wastewater is:

[0026]

[0027] According to the water quality, the dosage is determined to be 200mg / L. The system has been running for 45 days without any sewage discharge in the middle, and the test piece and heat exchange tubes are not scaled or corroded, completely re...

Embodiment 3

[0029] The fermented waste water of a biopharmaceutical factory in Shandong is used for a dynamic simulation test of circulating water. The waste water is filled into the circulating water system, and the medicament of the present invention is added to the circulating water system. The medicament is made by mixing the following raw materials in parts by weight: carboxymethyl chitosan 30 parts of sugar, 25 parts of furfural, 15 parts of sulfamic acid, 0.5 part of fatty alcohol polyoxyethylene ether, 0.5 part of 1,3,6,8-pyrene tetrasulfonic acid sodium salt, water: the balance, a total of 100 parts. The water quality of the fermented wastewater is:

[0030]

[0031] According to the water quality, the dosage is determined to be 100mg / L. The system has been running for 50 days without any sewage discharge in the middle, and the test piece and heat exchange tubes are not scaled or corroded, completely realizing zero sewage discharge.

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Abstract

The invention relates to the technical field of water treatment and in particular relates to a green medicament used for zero discharge of circulating water. The green medicament used for the zero discharge of the circulating water is characterized by being prepared by adding water into a scale inhibitor, a corrosion inhibitor, a dispersing agent, a surfactant and a fluorescent tracer in a certain weight proportion and mixing. The green medicament used for the zero discharge of the circulating water can be used for solving the sewage treatment problem and also meets demand of industrial production on the circulating water, and water consumption is greatly reduced; and the adopted raw materials are environment-friendly non-phosphorus raw materials, overgrowth of microorganisms, especially algae, in sewage is hardly caused, and a certain bactericidal effect is realized.

Description

(1) Technical field [0001] The invention relates to the technical field of water treatment, in particular to an environment-friendly agent for zero-discharge of circulating water. (2) Background technology [0002] With the rapid development of my country's industrialization, urbanization, and agricultural intensification, a large amount of sewage, especially sewage with complex components, will be discharged directly without treatment, which will have a huge impact on water resources and the environment. After simple treatment of these sewage, reuse of industrial circulating cooling water is an effective problem to solve the problem of water resources. [0003] Due to the large amount of inorganic ions (such as Ca 2- , Mg 2- , SO 4 2- , Cl - ) and organic matter. With the operation of the system, the concentration ratio becomes higher, and insoluble salts are easily formed on the surface of the system equipment, which makes the equipment scale and look down, affecting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/50C02F5/12A01N43/16A01P1/00A01P13/00
CPCA01N43/16C02F1/00C02F1/50C02F5/12C02F2303/04C02F2303/08C02F2303/22
Inventor 田民格杨庆军史海岭殷树梅孙婷
Owner SCI GREEN SHANDONG ENVIRONMENT TECH CO LTD
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