RU2004126914A - Method for producing deep-demineralized water - Google Patents

Method for producing deep-demineralized water Download PDF

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Publication number
RU2004126914A
RU2004126914A RU2004126914/15A RU2004126914A RU2004126914A RU 2004126914 A RU2004126914 A RU 2004126914A RU 2004126914/15 A RU2004126914/15 A RU 2004126914/15A RU 2004126914 A RU2004126914 A RU 2004126914A RU 2004126914 A RU2004126914 A RU 2004126914A
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RU
Russia
Prior art keywords
water
purification
stage
filters
final
Prior art date
Application number
RU2004126914/15A
Other languages
Russian (ru)
Other versions
RU2281257C2 (en
Inventor
Николай Андреевич Янковский (UA)
Николай Андреевич Янковский
Валерий Андреевич Степанов (UA)
Валерий Андреевич Степанов
Original Assignee
Открытое акционерное общество "Концерн Стирол" (UA)
Открытое акционерное общество "Концерн Стирол"
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Publication date
Priority to UA20040705765 priority Critical
Priority to UA20040705765A priority patent/UA72057C2/en
Application filed by Открытое акционерное общество "Концерн Стирол" (UA), Открытое акционерное общество "Концерн Стирол" filed Critical Открытое акционерное общество "Концерн Стирол" (UA)
Publication of RU2004126914A publication Critical patent/RU2004126914A/en
Application granted granted Critical
Publication of RU2281257C2 publication Critical patent/RU2281257C2/en

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Claims (7)

1. A method of obtaining deeply demineralized water for ammonia production vaporization systems, which consists in collecting the initial river water, its reagent treatment in clarifiers, liming and coagulation, disinfection, preliminary filtration of mechanical and suspended particles in the first purification stage, final purification of suspended particles in cartridge filters of the second the stage of purification, partial demineralization in the third stage of purification, the subsequent removal of carbon dioxide in decarbonizers and the final demineral mixtures in mixed-action filters, characterized in that biologically treated chemical wastewater, storm sewage, mine wastewater and other effluents or mixtures thereof with a total hardness of up to 30 mEq / l and with a total salinity of 4 ÷ 6 g / l with a total microbial number of up to 10 thousand units in 1 ml, reverse osmosis desalination of water is used as the third stage of purification, carrying out the separation process on membranes with a filtration spectrum from 0.0001 to 0.001 μm, at a pressure of 2 ÷ 2.5 MPa, with the formation of permeate and concentrate, the removal of the first to decarbonization and final demineralization in mixed-action filters to a total salinity of 0.2 mg / l.
2. The method according to claim 1, characterized in that the obtained concentrate is subjected to demineralization under a pressure of 2.5 ÷ 3.0 MPa in an additional reverse osmosis stage until the salinity of the obtained permeate is 150 mg / L.
3. The method according to claim 1, characterized in that a flocculant and a solution of sodium hypochlorite are added to the water before the 1st purification step.
4. The method according to claim 1, characterized in that the disinfection of water by double chlorination and the introduction of oxidants.
5. The method according to claim 1, characterized in that a solution of antiscale and a solution of sodium metabisulfate are introduced into clarified water.
6. The method according to claim 1, characterized in that sulfuric acid is dosed in clarified water in front of the pre-filters to the amount necessary to maintain the pH of the water from 5.0 to 7.0.
7. The method according to claim 1, characterized in that the cleaning of the membrane elements is carried out by circulation through the membranes of washing acidic and alkaline solutions.
RU2004126914/15A 2004-07-13 2004-09-07 Method of production of highly demineralized water RU2281257C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
UA20040705765 2004-07-13
UA20040705765A UA72057C2 (en) 2004-07-13 2004-07-13 A method for the preparation of heavily demineralized water

Publications (2)

Publication Number Publication Date
RU2004126914A true RU2004126914A (en) 2006-02-27
RU2281257C2 RU2281257C2 (en) 2006-08-10

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ID=34618235

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2004126914/15A RU2281257C2 (en) 2004-07-13 2004-09-07 Method of production of highly demineralized water

Country Status (2)

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RU (1) RU2281257C2 (en)
UA (1) UA72057C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2447026C2 (en) * 2010-06-11 2012-04-10 Игорь Семенович Балаев Method and apparatus for post-treatment of water during fine demineralisation
CN103043839B (en) * 2013-01-05 2014-08-20 国核电力规划设计研究院 System for removing total organic carbon for demineralization water system for nuclear power station and control method
CN103979697B (en) * 2014-05-30 2016-06-22 重庆德利欧环保有限公司 Small-sized type drinking water system capable of direct drinking
CN104291486B (en) * 2014-09-30 2016-09-14 深圳能源资源综合开发有限公司 Coal Chemical Industry strong brine high power reuse technology and special equipment

Also Published As

Publication number Publication date
RU2281257C2 (en) 2006-08-10
UA72057C2 (en) 2005-01-17

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