CN102161539A - Application of combined technology of high-density filtering pond and V-shaped filtering pond in deep processing method of coking wastewater - Google Patents
Application of combined technology of high-density filtering pond and V-shaped filtering pond in deep processing method of coking wastewater Download PDFInfo
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- CN102161539A CN102161539A CN2011100239112A CN201110023911A CN102161539A CN 102161539 A CN102161539 A CN 102161539A CN 2011100239112 A CN2011100239112 A CN 2011100239112A CN 201110023911 A CN201110023911 A CN 201110023911A CN 102161539 A CN102161539 A CN 102161539A
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Abstract
The invention relates to the technology for the deep purification method of coking wastewater generated by coal chemical enterprises. At present, most Chinese coking enterprises adopt the technology of combining a mechanical agitation clarification tank with a common filtering pond to carry out deep processing on coking wastewater, but the technology of combining the mechanical agitation clarification tank with the common filtering pond can not satisfy production requirements. The application adopts the following technical scheme to solve the technical problem of the deep processing of the coking wastewater: a high-density filtering pond and a V-shaped filtering pond are combined to replace the common technology of combining the mechanical agitation clarification tank with the common filtering pond. The application has the result that the processing efficiency is improved compared with the original common technology of combining the mechanical agitation clarification tank with the common filtering pond, the concentration of effluent suspended matter is greatly lowered, effluent COD (Chemical Oxygen Demand) is lowered, operation stability is improved, and flocculoreaction time is shortened. The application is suitable for various types of water treatment medicament, satisfies production requirements and provides a powerful guarantee for the standard discharge of cooking wastewater.
Description
Affiliated technical field
The present invention relates to the invention technology of the coking wastewater deep treatment that coal chemical industry enterprises produces.
Background technology
Coking chemical waste water is the waste water that produces in coking, system gas and the coke chemicals removal process.Its pollutent is formed complexity, concentration is high, toxicity is big.Waste water mainly comprises remained ammonia, methanol production waste water, coke-oven waste water, is equipped with the burnt waste water of screen, dehydration of tar waste water etc.Mainly contain inorganicss such as ammonia, prussiate, sulphur hydrogen root in the coking chemical waste water, also have phenol, benzene, naphthalene, pyridine, quinoline, anthracene and other fragrance and condensed-nuclei aromatics compound and coal tar oily substance, belong to high-concentration organic industrial waste water.
Domestic coal chemical enterprise now adopts accelerator combination general filter chamber that coking chemical waste water is carried out advanced treatment more, exist processing efficiency not high, fluctuation of service, go out the problem that water suspension exceeds standard, and because the coming into operation of a large amount of efficient flocculants, oxygenant, coagulant aids, accelerator combination general filter chamber can't satisfy the demand of production already.
Summary of the invention
For solving the problem that domestic now coal chemical enterprise coking wastewater deep treatment exists, through years of researches and practice, the demonstration of actual engineering has been invented the advanced treatment process of coking waste water in combination V-type filter tank, high-density filter tank.
The present invention solves the scheme that the advanced treatment process of coking waste water problem adopted: adopt high-density filter tank combination V-type filter tank technique to substitute original accelerator combination general filter chamber technology.
The high-density filter tank is the integrated precipitation/concentration basin of a kind of high speed, and its technology is based on following four technical characterstics:
(1) unique integrated reacting district designs;
(2) the reaction zone change in flow lower to the settling region;
(3) settling region is to the mud circulation of reaction zone;
(4) adopt tube settling to arrange.
The advantage that above mechanism has determined efficient settling pond to have is: the mud circulation has improved the flocculation ability that advances mud, makes floss more even closely knit; Inclined tube arranges and has improved sedimentation effect to have higher sedimentation speed, can reach 20m/h; The primary water quality is higher; It is insensitive that water inlet is fluctuateed, and can bear fluctuations in discharge in a big way.
The V-type filter tank is a kind of air-water backwashing rapid filter, and the both sides in V-type filter tank or a side inlet flume are designed to V-type and gain the name.
Its principal feature is:
(1) adopt homogeneous filtering material, the water environment capacity of filtering layer is enhanced;
(2) recoil of gas, water adds the lateral surfaces that exists all the time again and sweeps and wash, and developing result is good, and washing water quantity significantly reduces.
The characteristics of V-type filter tank maximum are to have introduced air purge in flushing process, and whole flushing process divided for three steps carried out: 1. single air purge: loosening whole filtering layer, and dirt incrust during the water flushing is peeled off under the high shearing that bubble sharply rises; 2. air water is united flushing: gas dashes the collision friction aggravation that makes between filtering material particle, when water washes, the shearing action on filtering material particle surface is also given full play to, and has strengthened water towards usefulness; 3. water dashes: Dan Shuichong takes the impurity that comes off out of filter material layer.
Achievement of the present invention is, more original accelerator combination general filter chamber technology has improved processing efficiency, greatly reduced the concentration that water suspension, reduced the COD of water outlet, improve operating stability, shortened the flocculation reaction time simultaneously, adapted to all kinds of novel water treatment agents, satisfied the demand of producing, for the coking chemical waste water qualified discharge provides sound assurance.
Description of drawings
The Figure of description explanation:
The high-density filter tank
The V-type filter tank
Embodiment
(1) the high-density filter tank substitutes accelerator.
(2) the V-type filter tank substitutes general filter chamber.
Claims (1)
- Art breading efficient at accelerator assembled filter in the coking wastewater deep treatment now not high, can't satisfy the problem of present stage production demand, utilize high-density filter tank, V-type filter tank combination process to substitute mechanize settling pond assembled filter technology, shorten the flocculation reaction time, improve processing efficiency, improve operation stability, realize discharged wastewater met the national standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100239112A CN102161539A (en) | 2010-06-23 | 2011-01-21 | Application of combined technology of high-density filtering pond and V-shaped filtering pond in deep processing method of coking wastewater |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020233485.6 | 2010-06-23 | ||
| CN201020233485 | 2010-06-23 | ||
| CN2011100239112A CN102161539A (en) | 2010-06-23 | 2011-01-21 | Application of combined technology of high-density filtering pond and V-shaped filtering pond in deep processing method of coking wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102161539A true CN102161539A (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100239112A Pending CN102161539A (en) | 2010-06-23 | 2011-01-21 | Application of combined technology of high-density filtering pond and V-shaped filtering pond in deep processing method of coking wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102161539A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462801A (en) * | 2009-01-16 | 2009-06-24 | 首钢总公司 | Steel composite wastewater recycle-water double-membrane demineralization system and technique |
| CN101596410A (en) * | 2009-07-03 | 2009-12-09 | 首钢总公司 | The cleaning method of moisture film method desalting system reverse osmosis membrane in a kind of iron and steel |
-
2011
- 2011-01-21 CN CN2011100239112A patent/CN102161539A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462801A (en) * | 2009-01-16 | 2009-06-24 | 首钢总公司 | Steel composite wastewater recycle-water double-membrane demineralization system and technique |
| CN101596410A (en) * | 2009-07-03 | 2009-12-09 | 首钢总公司 | The cleaning method of moisture film method desalting system reverse osmosis membrane in a kind of iron and steel |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110824 |