CN104291474B - The processing method of coking chemical waste water - Google Patents
The processing method of coking chemical waste water Download PDFInfo
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- CN104291474B CN104291474B CN201410532241.0A CN201410532241A CN104291474B CN 104291474 B CN104291474 B CN 104291474B CN 201410532241 A CN201410532241 A CN 201410532241A CN 104291474 B CN104291474 B CN 104291474B
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- waste water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
- C02F2101/322—Volatile compounds, e.g. benzene
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention discloses the processing method of a kind of coking chemical waste water, relate to Technologies of Coke Plant Wastewater Treatment field, coking wastewater processing system is used to process, the waste water that coking biochemical system processes pumps into water knockout drum, waste water is injected at the bottom of tube settler by water knockout drum, waste water uphill process stops through inclined tube packing area, after removing partial suspended thing, waste water is by the water outlet of tube settler top, enter upper prop liquid pool, delivered to enter after shallow sand device group filters resin adsorption tower by upper prop liquid pump again, certainly afterbay is flowed into by the bottom of tower after resin adsorption, the present invention is to colourity, COD and total cyanide retain efficiency height and concentration pollutant productivity is low, outlet tail water water quality stability is good, tail water water quality is effectively improved and stability improves, the water yield is cut down notable；There is the advantages such as flow process is short, take up an area less, investment appropriateness, operation cost are low.
Description
Technical field
The present invention relates to Technologies of Coke Plant Wastewater Treatment field, the processing method of a kind of coking chemical waste water.
Background technology
Coked waste water, essentially from coking, gas purification and chemical products subtractive process, is a kind of composition containing tens kinds of pollutants such as phenol, cyanogen, benzene, ammonia nitrogens and the waste water of complexity thereof, belongs to the organic wastewater of typical case's high concentration poisonous and harmful difficult degradation.Its trade effluent is mostly taked coagulation by domestic coking industry, and as oil removing, extracting and dephenolizing, distillation deamination etc. pre-process, two stage treatment, such as O2、A2/O、A/O2Isoreactivity sludge processes.In recent years coking and environmental protection industry (epi) have carried out a large amount of useful exploration and practice in terms of three grades of i.e. advanced treating of improvement of coking chemical waste water, define charcoal absorption, Fenton efficient oxidation etc., but all suffer from greatly the problems such as technique is immature, plant running is unstable, concentrate productivity high and difficulty is finally administered, operation cost is high and be difficult to promote problem.
Summary of the invention
The processing method that problem to be solved by this invention is to provide a kind of technical maturity, plant running is stable, the water yield cuts down significant coking chemical waste water.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is: use coking wastewater processing system to process, the waste water that coking biochemical system processes pumps into water knockout drum, waste water is injected at the bottom of tube settler by water knockout drum, waste water uphill process stops through inclined tube packing area, after removing partial suspended thing, waste water is by the water outlet of tube settler top, enter upper prop liquid pool, delivered to enter after shallow sand device group filters resin adsorption tower by upper prop liquid pump again, after resin adsorption, certainly flowed into afterbay by the bottom of tower.
In technique scheme, more specifically scheme it may also is that the removal of described suspension be the stop through described inclined tube packing area, adhere to after, suspension builds up into thin mud layer on described inclined tube surface, sinks to sludge hopper at the bottom of pond, discharge pipeline enters sludge-tank through sludge pump；Described waste water enters described shallow sand device to carry out filtering the mud produced from flowing into sludge-tank；The described waste water described resin adsorption tower of entrance, through resin adsorption, regenerates through desorbing agent after resin adsorption is saturated, and the desorption liquid that resin desorption produces enters desorption liquid pool.
Further: described desorption liquid be concentration be the concentration of hydrochloric acid of 1%～4% and NaOH that concentration is 3%～6%, the described resin adsorption time is 90～100h.
Further: described coking wastewater processing system includes described water knockout drum, connected by pipeline bottom this water knockout drum and have described tube settler, this tube settler side connects described desorption liquid pond and described sludge-tank, and opposite side is provided with described upper prop liquid pool；Being connected with described sludge-tank by sludge pump at the bottom of described tube settler, described tube settler top is provided with opening and connects with described upper prop liquid pool；Described upper prop liquid pool is connected with described shallow sand device group by described upper prop liquid pump, this shallow sand device group is connected by pipeline resin adsorption tower, and this resin adsorption tower is connected by adsorption pump has desorption this resin adsorption tower of liquid bath to be connected with described desorption liquid pool by desorption pump.
Further: described tube settler is respectively sludge hopper, buffering area, inclined tube packing area and gathering ground from bottom to top, and the side mouth of described gathering ground connects with described upper prop liquid pool；Described sludge-tank top is provided with the overflow launder being connected with described tube settler；It is connected with described sludge-tank by pipeline bottom described shallow sand device group；Described resin adsorption tower is connected with described desorption liquid pool by desorption pump.
Further: described shallow sand device group 4 is made up of the one-level sand filter connected and two grades of sand filters.
Owing to using technique scheme, the present invention compared with prior art, has the advantages that
1, owing to using coking wastewater processing system to process, stop through inclined tube packing area, after removing the partial suspended thing in waste water, filtered by shallow-layer filter group again, sludge filtration in waste water is fallen, eventually pass resin adsorption tower, certainly afterbay is flowed into by the bottom of tower after resin adsorption, colourity, COD and total cyanide can effectively be retained by such processing mode, retain efficiency height and concentration pollutant productivity is low, being about 2%, outlet tail water water quality stability is good, and tail water water quality is effectively improved and stability improves, the water yield is cut down notable.
2, owing to having tube settler by pipeline connection bottom the water knockout drum of coking wastewater processing system, this tube settler side connects desorption liquid pool and sludge-tank, opposite side is provided with upper prop liquid pool, upper prop liquid pool is connected with shallow sand device group, shallow sand device group is connected with resin adsorption tower again, this flow process processed is short, and system footprint is few, and investment appropriateness, operation cost are low.
Accompanying drawing explanation
Fig. 1 is the coking wastewater processing system structural representation of the present invention.
Fig. 2 is the structural representation of resin adsorption tower.
Detailed description of the invention
Below in conjunction with attached Example, the invention will be further described:
Embodiment 1:
Coking wastewater processing system as shown in Figure 1, including water knockout drum 1, connected by pipeline bottom this water knockout drum and have tube settler 2, this tube settler side connects desorption liquid pool 8 and sludge-tank 7, opposite side is provided with upper prop liquid pool 3, tube settler 2 is respectively sludge hopper 201, buffering area 202, inclined tube packing area 203, gathering ground 204 from bottom to top, sludge hopper 201 end, is connected with sludge-tank 7 by sludge pump 701, and the side, gathering ground 204 at tube settler top is provided with opening and connects with upper prop liquid pool 3；Upper prop liquid pool 3 is connected with shallow sand device group 4 by upper prop liquid pump 301, and shallow sand device group 4 is made up of the one-level sand filter connected and two grades of sand filters, and every grade of shallow sand device is respectively equipped with mud discharging mouth, and two mud discharging mouths are connected to sludge-tank 7 by pipeline；Sludge-tank 7 top is provided with the overflow launder being connected with tube settler 2；Shallow sand device group 4 is connected by pipeline resin adsorption tower 5, as shown in Figure 2, the water inlet 501 of resin adsorption tower 5 is positioned at this top of tower, delivery port 502 is positioned at this tower bottom, and the valve being connected with resin adsorption top of tower water inlet 501 has water intaking valve A1, compressed air valve A3, desorption liquid enterprising valve A6；The valve being connected with resin adsorption tower bottom delivery port 502 have under outlet valve A2, remaining water valve A4, desorption liquid enter valve A5, return pot valve A7, desorption liquid outlet valve A8 and atmospheric valve A10, resin adsorption top of tower is provided with diffusion valve A9；Resin adsorption tower 5 is connected by adsorption pump desorption liquid bath 6, and desorption liquid enterprising valve A6 is flowed in tower by tower top for the desorption liquid controlling to be desorbed in liquid bath 6, enters valve A5 and flowed in tower by tower bottom for the desorption liquid controlling to be desorbed in liquid bath 6 under desorption liquid；When processing coking chemical waste water, the waste water pump that coking biochemical system processes controls flow 380 m3/ h delivers to water knockout drum 1, waste water is divided evenly bottom tube settler 2, waste water uphill process stops through inclined tube packing area 203, after removing partial suspended thing, waste water is by gathering ground 204 water outlet at tube settler top, enter upper prop liquid pool 3, waste water in upper prop liquid pool is delivered to the shallow sand device group 4 of two-stage series connection by upper prop liquid pump, enters resin adsorption tower 5, certainly flowed into afterbay by the bottom of tower after resin adsorption after filtration；Sequentially passing through hydrochloric acid desorption liquid and the 4% NaOH desorption liquid of 1% after resin adsorption 90h is saturated in resin adsorption tower to regenerate, the desorption liquid that resin desorption produces enters desorption liquid pool 8.
Embodiment 2:
In the present embodiment, wastewater flow is 290 m3/ h, the resin adsorption time is 100h, and hydrochloric acid desorbing agent concentration is 2%, and NaOH desorbing agent concentration is 6%；Remaining is the most identical with embodiment 1.
Claims (5)
1. the processing method of a coking chemical waste water, it is characterized in that: use coking wastewater processing system to process, the waste water that coking biochemical system processes pumps into water knockout drum, waste water is injected at the bottom of tube settler by water knockout drum, waste water uphill process stops through inclined tube packing area, and after removing partial suspended thing, waste water is by the water outlet of tube settler top, enters upper prop liquid pool, delivered to enter after shallow sand device group filters resin adsorption tower by upper prop liquid pump again, after resin adsorption, certainly flowed into afterbay by the bottom of tower；Described coking wastewater processing system includes described water knockout drum, and being connected by pipeline bottom this water knockout drum has described tube settler, and this tube settler side connects desorption liquid pool and sludge-tank, and opposite side is provided with upper prop liquid pool；Being connected with described sludge-tank by sludge pump bottom described tube settler, described tube settler top is provided with opening and connects with described upper prop liquid pool；Described upper prop liquid pool is connected with described shallow sand device group by described upper prop liquid pump, this shallow sand device group is connected by pipeline resin adsorption tower, this resin adsorption tower is connected by adsorption pump desorption liquid bath, and this resin adsorption tower is connected with described desorption liquid pool by desorption pump.
The processing method of coking chemical waste water the most according to claim 1, it is characterized in that: after the removal of described suspension is the stop through described inclined tube packing area, adhesion, suspension builds up into thin mud layer on described inclined tube surface, sinks to sludge hopper at the bottom of pond, discharge pipeline enters sludge-tank through sludge pump；Described waste water enters described shallow sand device to carry out filtering the mud produced from flowing into sludge-tank；The described waste water described resin adsorption tower of entrance, through resin adsorption, regenerates through desorbing agent after resin adsorption is saturated, and the desorption liquid that resin desorption produces enters desorption liquid pool.
The processing method of coking chemical waste water the most according to claim 2, it is characterised in that: described desorption liquid be concentration be the concentration of hydrochloric acid of 1%～4% and NaOH that concentration is 3%～6%, the described resin adsorption time is 90～100h.
The processing method of coking chemical waste water the most according to claim 1, it is characterised in that: described tube settler is respectively sludge hopper, buffering area, inclined tube packing area and gathering ground from bottom to top, and the side mouth of described gathering ground connects with described upper prop liquid pool；Described sludge-tank top is provided with the overflow launder being connected with described tube settler；It is connected with described sludge-tank by pipeline bottom described shallow sand device group.
The processing method of coking chemical waste water the most according to claim 1, it is characterised in that: described shallow sand device group is made up of the one-level sand filter connected and two grades of sand filters.
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| CN201410532241.0A CN104291474B (en) | 2014-10-11 | 2014-10-11 | The processing method of coking chemical waste water |
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| CN201410532241.0A CN104291474B (en) | 2014-10-11 | 2014-10-11 | The processing method of coking chemical waste water |
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| CN104291474A CN104291474A (en) | 2015-01-21 |
| CN104291474B true CN104291474B (en) | 2016-09-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105036234A (en) * | 2015-07-01 | 2015-11-11 | 江苏天成生化制品有限公司 | Acetoacetanilide wastewater recycling process |
| CN110237832B (en) * | 2019-05-29 | 2021-12-21 | 江苏南大环保科技有限公司 | Regeneration method of coking tail water adsorption resin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368176B1 (en) * | 2000-03-27 | 2003-01-24 | 이희권 | Wastewater disposal device |
| CN101514063A (en) * | 2009-03-24 | 2009-08-26 | 郴州市勤鑫高科有限公司 | Advanced treatment method of biochemical tail water of coking wastewater |
-
2014
- 2014-10-11 CN CN201410532241.0A patent/CN104291474B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368176B1 (en) * | 2000-03-27 | 2003-01-24 | 이희권 | Wastewater disposal device |
| CN101514063A (en) * | 2009-03-24 | 2009-08-26 | 郴州市勤鑫高科有限公司 | Advanced treatment method of biochemical tail water of coking wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 几种焦化废水深度处理技术的比较;谭绍栋 等;《化工环保》;20121231;第32卷(第2期);第1.2节及图2 * |
| 焦化废水深度处理技术的实验探索;谢文鹏 等;《柳钢科技》;20101231(第2期);第37-39页 * |
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