CN205419975U - High concentration coking wastewater's processing system - Google Patents
High concentration coking wastewater's processing system Download PDFInfo
- Publication number
- CN205419975U CN205419975U CN201520753885.2U CN201520753885U CN205419975U CN 205419975 U CN205419975 U CN 205419975U CN 201520753885 U CN201520753885 U CN 201520753885U CN 205419975 U CN205419975 U CN 205419975U
- Authority
- CN
- China
- Prior art keywords
- post
- coking
- dissolved air
- air floatation
- preadsorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a high concentration coking wastewater treatment system, including breaker, ball mill, preadsorption blender, delivery pump, circulating pump, adsorption separation flotation column, dissolved gas pump, dissolved air floatation post and pressure filter. The broken buggy that obtains that grinds of coking buggy, adsorption separation flotation column flotation separation is given by high concentration coking wastewater and foaming agent behind preadsorption treater misce bene, it has oil to adsorb, the buggy foam that contains of suspended solid and macromolecule organic matter is discharged through the foam collecting vat, get rid of oil, suspended solid and macromolecule organic matter, bottom exhaust organic waste water successively gets into preadsorption treater and dissolved air floatation post, the micro molecule organic matter, inorganic ion and suspended solid and bubble formation foam blanket are discharged from the foam collecting vat, it discharges from the bottom of dissolved air floatation post to purify out water, merging the overflow for going into the pressure filter filter -pressing, obtaining filtrating and dehydration honey -comb coal, the honey -comb coal gets into the coking system. The utility model discloses simple structure, simple process, the treatment effeciency is high, with low costs and do not produce mud.
Description
Technical field
This utility model relates to the processing system of a kind of wastewater from chemical industry, the processing system of a kind of high concentration coking.
Background technology
High concentration coking is that coking, coal gas are in high-temperature retorting, purification and side-product removal process, produce the industrial wastewater containing heterocyclic compounds such as volatile phenol, polycyclic aromatic hydrocarbon and oxygen, sulfur, nitrogen, be a kind of high CODcr, high phenol value, high ammonia nitrogen and the most intractable a kind of industrial organic waste water.At present, traditional coking waste water treatment process includes waste water process, tar processing and Treatment of Sludge, reason pretreatment at waste water, biochemical treatment and post processing three part composition.Wastewater biochemical processes and mainly utilizes the organic pollutant in the microbial decomposition waste water such as aerobic, anaerobism, but due to a large amount of aromatic rings contained in coking chemical waste water, condensed ring with how to change compound difficulty and be degraded and microorganism is had certain toxic action, make removal efficiency the lowest, in water outlet, COD content is typically 150～about 300mg/L, it is difficult to reach discharge standard.And traditional handicraft needs grease removal tank, flotation tank and the pre-processing devices such as joint pond that wither, the biochemical processing devices such as anaerobic reactor, anoxic pond, Aerobic Pond, medium sediment pool, contact-oxidation pool and second pond, and the equipment for after-treatment such as mixed reaction pond, coagulative precipitation tank and filter, the equipment such as additional tar and Treatment of Sludge, whole flow process equipment needed thereby is many, floor space is big, and capital construction cost is high.
New standard " coking chemistry emission of industrial pollutants standard " (GB16171-2012) requirement, existing coke-oven plant COD discharge capacity≤100mg/L, newly-built coke-oven plant COD discharge capacity≤80mg/L is performed according to coking industry in 2015.Therefore increase along with the discharge capacity of the raising of environmental requirement and coking chemical waste water, develop a kind of simple in construction, technological process is simple, treatment effeciency is high and production cost the is low new processing system of high concentration coking has become problem demanding prompt solution in coking industry and water environment protection.
Utility model content
Technical problem: the purpose of this utility model is to provide that a kind of simple in construction, technological process be simple, COD removal efficiency height, small investment, the processing system of high concentration coking that operating cost is low.
Technical scheme: the processing system of this utility model high concentration coking is provided with the connected disintegrating machine A of order, ball mill B, preadsorption blender C, the first feed pump D, adsorbing separation flotation column F, pretreatment blender G, the second feed pump H, dissolved air floatation post K and pressure filter L, described adsorbing separation flotation column F is configured with circulating pump E, described dissolved air floatation post K and is configured with air dissolved pump J.
The discharge gate of described preadsorption blender C is connected to the first feed pump D, and is connected with adsorbing separation flotation column F through communicating pipe.
The discharge gate of described pretreatment blender G is connected to the second feed pump H, and is connected with dissolved air floatation post K through communicating pipe.
Described adsorbing separation flotation column F through foam collecting tank and described dissolved air floatation post K through foam collecting tank through being connected communicating pipe and being connected with pressure filter L.
The beneficial effects of the utility model are:
1., by absorption and air supporting separating and combining, oil, float and organic pollutant are removed simultaneously, simplification of flowsheet, cost-effective.
2. according to former purposes, coking coal being entered coking system as adsorbent, the coal dust after absorption, coal dust does not has depreciation, and achieves organic recycling in coking chemical waste water, it is achieved that the zero-emission of sewage.
3. there are not the secondary pollutions such as mud in this processing system, decrease Treatment of Sludge, solve the secondary pollution pollution on the environments such as mud, thus reduce operating cost.
4. through adsorbing separation in adsorbing separation flotation column, have been realized in most of organic removal in coking chemical waste water, therefore only a small amount of flocculating agent and flocculant need to be added in pretreatment blender, just can realize small organic molecule, inorganic ions and float flocculate in coking chemical waste water and condense, after the dissolved air flotation of dissolved air floatation post, reduce further the COD value of water outlet.Reduce the consumption of flocculant and flocculating agent, reduce reagent cost.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present utility model.
Fig. 2 is structure of system equipment schematic diagram of the present utility model.
In Fig. 2: A disintegrating machine, B ball mill, C preadsorption blender, D the first feed pump 1, E circulating pump, F adsorbing separation flotation column, G pretreatment blender, H the second feed pump, J air dissolved pump, K dissolved air floatation post, L pressure filter.
Detailed description of the invention
It is embodied as example with reference below according to of the present utility model, this utility model is described further:
nullCoking coal dust is crushed by the processing system of high concentration coking of the present utility model by described disintegrating machine and ball mill、Coal dust is obtained after ore grinding，By coal dust、High concentration coking and foaming agent feed described adsorbing separation flotation column after described preadsorption processor mix homogeneously，Absorption through adsorbing separation flotation column、After dissolved air flotation，Be adsorbed with oil and larger molecular organics containing coal powder foam by the discharge of the foam collecting tank of described adsorbing separation flotation column，Complete the removal of oil and larger molecular organics，The pretreatment blender described in organic wastewater entrance discharged bottom adsorbing separation flotation column，Flocculating agent is added in pretreatment blender、Flocculant and foaming agent，After the mixing of preprocessed device，Feed described dissolved air floatation post，Small organic molecule after flocculation and cohesion、Inorganic ions and float are discharged from the top of described dissolved air flotation flotation column through foam collecting tank with bubble formation froth bed，Purify water outlet to discharge from the bottom of described dissolved air floatation post；The overflow that separating flotation post and dissolved air floatation post are discharged by foam collecting tank being merged together, then feed described pressure filter filter pressing, obtain filtrate and dehydration briquette, wherein filtrate returns to preadsorption processor, and briquette returns to coking system.
Embodiment 1: the processing system step of the organic coking chemical waste water of high concentration of the present utility model is as follows:
A, coking coal 1 is fed A crusher in crushing, obtain the breakdown products 2 that granularity is 5mm；
B, product is fed in B ball mill levigate by broken, obtain below granularity 74 μm and account for the ore grinding product 3 of 80%, i.e. coking coal coal dust；
C, being 7000mg/L by chemical oxygen consumption (COC) (COD) value, suspension content is 370mg/L, high concentration coking 4, coal dust 3 and foaming agent 5 send in C preadsorption blender and mix；
In d, step c, coking chemical waste water and coal dust intermixture 6 after mix homogeneously feed adsorbing separation flotation column through D feed pump 1, through the absorption of F adsorbing separation flotation column, eddy flow, dissolved air flotation, 1. the larger molecular organics in coking chemical waste water, oil droplet and the absorption of pulverized coal particle making contact, the pulverized coal particle after absorption forms coal-gas complex with bubble hit；2. in coking chemical waste water, float and pulverized coal particle collision are sticked, and stick rear pulverized coal particle and form coal-gas complex with bubble hit；3. the oil droplet in coking chemical waste water and the adhesion on pulverized coal particle surface again after mutual collision coalescence between larger molecular organics, further increase oil removal efficiency；
The mix-froth that e, the small organic molecule after adsorbing separation flotation column separates, oil droplet, float, bubble and coal dust are formed is discharged through foam collecting tank through adsorbing separation flotation column top, it is overflow product 9, the coking chemical waste water after process purification water pipe bottom adsorbing separation flotation column is discharged, and is underflow product 10；
Underflow product 10 in f, step e is the coking chemical waste water after primary sorption separating flotation post processes, in drainage conduit feeds G pretreatment blender；
G, in G pretreatment blender, add flocculant 11, flocculating agent 12 and foaming agent 13, mix homogeneously with the coking chemical waste water after processing；
In h, step f, the coking chemical waste water of mix homogeneously feeds K dissolved air floatation post through H feed pump 2, after eddy flow, dissolved air flotation；
I, the small organic molecule after dissolved air floatation post separates, dissolved oil, the mix-froth layer of float and bubble formation are discharged through foam collecting tank through dissolved air floatation column top, are overflow product 18；The coking chemical waste water after the process purification water pipe through the bottom of dissolved air floatation post is discharged, and is underflow product 17；
Underflow product 17 in j, step i is 15mg/L for the qualified water outlet that chemical oxygen consumption (COC) is 75mg/L, suspension content；
The overflow product 18 in overflow product 9 and i in k, step e feeds pressure filter after merging into 19 and is dehydrated, and obtains filtrate 20 and dehydration briquette 21；
Filtrate in l, step k is in 2 preprocessors squeezed into by pipeline pump；
Dehydration briquette in m, step k feeds in the coke oven of coking system and carries out coking process；
In n, step c, the foaming agent 13 in foaming agent 5 and step g is all sec-octyl alcohol, and in step g, flocculant 11 is cationic polyvinyl, and described flocculating agent 12 is NaCl；
In o, step c, preadsorption mixed process is carried out under the conditions of quality of pc percentage concentration 8%～12%；
In p, step e, the chemical oxygen consumption (COC) of underflow product is 300mg/L, and suspension content is 45mg/L.
For the circulation chats containing small organic molecule, oil droplet and float being sufficiently separated in q, step e, through J air dissolved pump, in the middle part of dissolved air flotation flotation column, tangent line feeds and carries out further dissolved air flotation.
Claims (4)
1. the processing system of a high concentrated organic wastewater, it is characterized in that: this system is provided with disintegrating machine (A), ball mill (B), preadsorption blender (C), the first feed pump (D), adsorbing separation flotation column (F), pretreatment blender (G), the second feed pump (H), dissolved air floatation post (K) and the pressure filter (L) that order is connected, described adsorbing separation flotation column (F) is configured with circulating pump (E), and described dissolved air floatation post (K) is configured with air dissolved pump (J).
The processing system of a kind of high concentrated organic wastewater the most according to claim 1, it is characterized in that: the discharge gate of described preadsorption blender (C) is connected to the first feed pump (D), and is connected with adsorbing separation flotation column (F) through communicating pipe.
The processing system of a kind of high concentrated organic wastewater the most according to claim 1, it is characterized in that: the discharge gate of described pretreatment blender (G) is connected to the second feed pump (H), and is connected with dissolved air floatation post (K) through communicating pipe.
The processing system of a kind of high concentrated organic wastewater the most according to claim 1, is characterized in that: described adsorbing separation flotation column (F) through foam collecting tank and described dissolved air floatation post (K) through foam collecting tank through being connected communicating pipe and being connected with pressure filter (L).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753885.2U CN205419975U (en) | 2015-09-25 | 2015-09-25 | High concentration coking wastewater's processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753885.2U CN205419975U (en) | 2015-09-25 | 2015-09-25 | High concentration coking wastewater's processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205419975U true CN205419975U (en) | 2016-08-03 |
Family
ID=56517693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753885.2U Expired - Fee Related CN205419975U (en) | 2015-09-25 | 2015-09-25 | High concentration coking wastewater's processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205419975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467205A (en) * | 2018-12-19 | 2019-03-15 | 武汉格林环保设施运营有限责任公司 | High-concentration organic wastewater treatment system |
-
2015
- 2015-09-25 CN CN201520753885.2U patent/CN205419975U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467205A (en) * | 2018-12-19 | 2019-03-15 | 武汉格林环保设施运营有限责任公司 | High-concentration organic wastewater treatment system |
| CN109467205B (en) * | 2018-12-19 | 2021-10-08 | 武汉格林环保设施运营有限责任公司 | High-concentration organic wastewater treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105110516A (en) | Treatment process of high-concentration coking wastewater | |
| CN202744428U (en) | River sediment sieving, oxidation reducing and deep dewatering device | |
| CN111170552A (en) | Oily sewage pretreatment method and device without air floatation | |
| CN106045257A (en) | Sediment combination treatment technology | |
| CN106045107A (en) | Heavy-metal-containing flotation wastewater treatment and recycling technique | |
| CN102976511A (en) | Coking wastewater membrane filtration concentrate recycle method | |
| CN103288311A (en) | Slack coal pressure gasification wastewater resourceful treatment method and treatment system as well as application | |
| CN103145301B (en) | Coking wastewater treatment technology | |
| CN112605094A (en) | Harmless treatment and green cyclic resource utilization method for high-salt-content hazardous waste | |
| CN109179578A (en) | A kind of processing method of coal mine water and/or coal washing waste water | |
| CN106430866A (en) | Synthetic rubber processing waste water treatment device and method | |
| CN104310664A (en) | Processing method for TNT explosive waste water and application of TNT explosive waste water | |
| CN205419975U (en) | High concentration coking wastewater's processing system | |
| CN113896305A (en) | Preparation method of polyaluminum ferric chloride water purifying agent | |
| CN105601055A (en) | Semi-coke wastewater multi-level treatment technology | |
| CN211999160U (en) | Pretreatment equipment for advanced treatment and recycling of industrial wastewater | |
| CN104609606B (en) | A kind of petrochemical wastewater preprocess method | |
| Al-Ani | Treatment of oily wastewater produced from old processing plant of north oil company | |
| CN111547886A (en) | Coal mine wastewater recycling comprehensive treatment system | |
| CN111186936A (en) | Oily water treatment method and oily water treatment system | |
| CN107792972B (en) | Treatment process and treatment system for oily wastewater | |
| CN107381981B (en) | Treatment method for removing mineral oil in wastewater | |
| Ozerova et al. | Analysis of methods for treatment of industrial wastewaters containing polycyclic aromatic hydrocarbons | |
| CN111170550B (en) | Method and device for reducing oil sludge and scum in cleaning treatment of oily sewage | |
| CN100441527C (en) | Treatment of acid wastewater in cold rolling neutralizing station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |