CN104628070A - Defoaming system and method for coking wastewater treatment - Google Patents
Defoaming system and method for coking wastewater treatment Download PDFInfo
- Publication number
- CN104628070A CN104628070A CN201510066051.9A CN201510066051A CN104628070A CN 104628070 A CN104628070 A CN 104628070A CN 201510066051 A CN201510066051 A CN 201510066051A CN 104628070 A CN104628070 A CN 104628070A
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- Prior art keywords
- defoaming
- applicable
- treatment
- defoamer
- water distribution
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Classifications
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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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/12—Prevention of foaming
Abstract
The invention relates to a defoaming system and method for coking wastewater treatment. The system comprises a dosing device, a water distribution pipeline and a plurality of defoaming devices, wherein the defoaming devices are installed on the water distribution pipeline at intervals; the dosing device comprises a defoaming agent storage tank, a clean water tank and a tubular mixer; the tubular mixer is provided with a defoaming agent pipeline connected with the defoaming agent storage tank, a clean water pipeline connected with the clean water tank, and a liquor delivery pipeline connected with the water distribution pipeline; each defoaming device is provided with a defoaming pipe; the lower end of each defoaming pipe is connected to the water distribution pipeline; and the upper end of each defoaming tube is provided with a sprayer. Three water streams are sufficiently mixed in the tubular mixer to form a defoaming agent mixed solution flowing at high speed; the clean water tank adopts the clean water after reaching the standard by wastewater treatment, thereby saving the water resources and implementing efficient utilization of wastewater; and the system can not pollute the environment, and implements continuous defoaming on the foam generation unit.
Description
Technical field
The present invention relates to a kind of sewage treatment equipment, particularly a kind of defoaming system and method being applicable to Treatment of Coking Effluent.
Background technology
Activated sludge process is the most widely used bioremediation of sewage work, the problem of ubiquity surfactant foam.Foam generally has viscosity, and it can make a large amount of solid be absorbed in buoyant foam layer, and produces upset, reduces the oxygen-transfer efficiency of aeration tank; In pure oxygen sealing Sludge System, foam can enter oxygen compressor and cause fire; When flowing into settling tank, water outlet suspended solids can be increased cause effluent quality to worsen under settling tank baffle plate; Foam accumulation can also produce corruption, and can freeze in the area of cold, and impact normally runs; Serious frothing can be caused containing frothy excess sludge when anaerobic digestion, damage anaerobic sludge treatment process.
In recent years, in Activated Sludge Process, the control techniques of bubble-related issues obtains large development, but these technology mostly have stronger specific aim, substantially can be divided into physico-chemical processes, biological process two kinds.Wherein physico-chemical process comprises spray water, adds chemical agent (defoamer, sterilizing agent, clorox etc.).Biological process comprises reduction cell mean residence time method, regulates pH value of sewage water, the air input rate reducing aeration, aeration tank leading portion to set up biological selector etc.Compared with eliminating foam with biological process, physico-chemical process simple operations, cycle are shorter, can not affect the normal operation of Waste Water Treatment, can play the effect of getting instant result.
In existing physical chemistry debubbling method, the uppermost spray water that usual meeting is producing foam structures carries out froth breaking, froth breaking water is directly sprayed onto in pond by straight tube shower nozzle, the spray area of each shower nozzle is less, therefore need to arrange that a large amount of shower nozzles just can reach the object of froth breaking, waste a large amount of water purification, increase the load of water treatment, power loss is larger simultaneously; And if adopt spraying head type shower nozzle, then can increase equipment cost, and easily block, not only reduce defoaming effectiveness, also increase the consumption of equipment.Therefore need to improve the removal of foam system in wastewater treatment process, reach the object of froth breaking by the less water yield, reduce the not quality of shower nozzle simultaneously, save the operation and maintenance cost of equipment, reduce energy consumption.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, and provide a kind of reasonable in design, water saving, improves the defoaming system being applicable to Treatment of Coking Effluent of defoaming effectiveness.
Another technical problem to be solved by this invention is for the deficiencies in the prior art, provide a kind of reasonable in design, cost of reducing investment outlay to greatest extent, and running cost is cheap, utilizes above-mentioned defoaming system in wastewater treatment process, carry out the method for foam removing.
Technical problem to be solved by this invention is realized by following technical scheme, the present invention is a kind of defoaming system being applicable to Treatment of Coking Effluent, be characterized in, comprise chemicals dosing plant, water distribution pipe and some defoaming devices, defoaming device interval is contained on water distribution pipe; Described chemicals dosing plant comprises defoamer storage tank, clean water basin and tube mixer, the liquid delivery conduit that tube mixer is provided with the defoamer pipeline connected with defoamer storage tank, the clear water pipeline connected with clean water basin and connects with water distribution pipe; Described defoaming device is provided with froth breaking pipe, and the lower end of froth breaking pipe is connected on water distribution pipe, and shower nozzle is equipped with in the upper end of froth breaking pipe.
Technical problem to be solved by this invention can also be realized further by following technical scheme, be applicable in the defoaming system of Treatment of Coking Effluent above-described: the lower end of described froth breaking pipe is connected with water distribution pipe by rapid-acting coupling, the length of described rapid-acting coupling is 5-20cm.
Technical problem to be solved by this invention can also be realized further by following technical scheme, is applicable in the defoaming system of Treatment of Coking Effluent above-described: on described defoamer pipeline and clear water pipeline, be equipped with volume pump, valve, under meter from liquid inlet to liquid exit.
Technical problem to be solved by this invention can also be realized further by following technical scheme, be applicable in the defoaming system of Treatment of Coking Effluent above-described: on described liquid delivery conduit, water distribution pipe, be equipped with valve, the water distribution pipe of liquid delivery conduit both sides is equipped with tensimeter, and described manometric scope is 0.1Mpa-3Mpa.
Technical problem to be solved by this invention can also be realized further by following technical scheme, be applicable in the defoaming system of Treatment of Coking Effluent above-described: the spacing distance of adjacent two defoaming devices is 3-8m, the spray area of single defoaming device is 15-50m
2.
Technical problem to be solved by this invention can also be realized further by following technical scheme, is applicable in the defoaming system of Treatment of Coking Effluent above-described: described froth breaking pipe is metal hose, and length is 3-10m.
Technical problem to be solved by this invention can also be realized further by following technical scheme, is applicable in the defoaming system of Treatment of Coking Effluent above-described: described shower nozzle is spiral nozzle.
Technical problem to be solved by this invention can also be realized further by following technical scheme, is applicable in the defoaming system of Treatment of Coking Effluent above-described: the laying mode of described water distribution pipe take surrounding around property, aerial erection, monolateral around in one or more.
Technical problem to be solved by this invention can also be realized further by following technical scheme, is applicable in the defoaming system of Treatment of Coking Effluent above-described: described froth breaking pipe adopts fixed or portable.
Another technical problem to be solved by this invention is realized by following technical scheme, and the present invention is a kind of method using above-mentioned defoaming system to carry out foam removing in wastewater treatment process, it is characterized in that:
(1) defoamer in defoamer storage tank, the clear water in clean water basin are pumped in tube mixer respectively by defoamer pipeline, clear water pipeline, abundant mixing, obtained defoamer mixed solution, defoamer mixed solution forms high velocity flow by the volume pump be located on defoamer pipeline and clear water pipeline in tube mixer; (2) defoamer mixed solution is under the impact of high velocity flow, through liquid delivery conduit, enters water distribution pipe; (3) defoamer mixed solution is through the rapid-acting coupling of water distribution pipe different positions, enters rapidly in froth breaking pipe, is penetrated by the shower nozzle on top, carries out the removal of foam to product foam cell.
The present invention is by establishing defoamer storage tank, tube mixer and clean water basin, fully mix in tube mixer, form swiftly flowing defoamer mixed solution, clear water after adopting wastewater treatment up to standard in clean water basin realizes the removal of foam, while saving water resource, realize the efficiency utilization of waste water, pollution is not produced to environment simultaneously; If water distribution pipe, realize defoamer mixed solution being evenly distributed in pond, ensure defoaming effect good in pond everywhere, avoid remnants; Adopt tube mixer to realize the abundant mixing of defoamer and clear water, effectively improve the utilising efficiency of defoamer mixed solution; If defoaming device, form high pressure seal environment at water distribution pipe, adopt rapid-acting coupling, fixed or packaged type froth breaking pipe carries out froth breaking, substantially increase froth breaking area, reducing water consumption and system run all right after froth breaking, realizing the continuous froth breaking to producing foam cell.Compared with prior art, it is reasonable in design, cost of reducing investment outlay to greatest extent, and running cost is cheap, simple to operate, applied range, and defoaming effect is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structure iron of defoaming device.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, sees figures.1.and.2, a kind of defoaming system being applicable to Treatment of Coking Effluent, comprises chemicals dosing plant, water distribution pipe 1 and some defoaming devices, and defoaming device interval is contained on water distribution pipe 1; Described chemicals dosing plant comprises defoamer storage tank 7, clean water basin 10 and tube mixer 3, the liquid delivery conduit 2 that tube mixer 3 is provided with the defoamer pipeline 4 connected with defoamer storage tank 7, the clear water pipeline 9 connected with clean water basin 10 and connects with water distribution pipe 1; Described defoaming device is provided with froth breaking pipe 13, and the lower end of froth breaking pipe 13 is connected on water distribution pipe 1, and shower nozzle 11 is equipped with in the upper end of froth breaking pipe 13.
Embodiment 2, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: the lower end of described froth breaking pipe 13 is connected with water distribution pipe 1 by rapid-acting coupling 12, the preferred 5-20cm of length of rapid-acting coupling 12.
Embodiment 3, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: on described defoamer pipeline 4 and clear water pipeline 9, be equipped with volume pump 6, valve 8, under meter 5 from liquid inlet to liquid exit.
Embodiment 4, be applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: on described liquid delivery conduit 2, water distribution pipe 1, be equipped with valve, the water distribution pipe 1 of liquid delivery conduit 2 both sides is equipped with tensimeter, and described manometric scope is 0.1Mpa-3Mpa.
Embodiment 5, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described shower nozzle is spiral nozzle.
Embodiment 6, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: the laying mode of described water distribution pipe 1 take surrounding around property, aerial erection, monolateral around in one or more.
Embodiment 7, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 adopts fixed or portable.
Embodiment 8, embodiment 1-7 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: described shower nozzle 14 is spiral nozzle.
Embodiment 9, embodiment 1-8 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the length of described rapid-acting coupling 12 is 5cm.
Embodiment 10, embodiment 1-8 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the length of described rapid-acting coupling 12 is 10cm.
Embodiment 11, embodiment 1-8 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the length of described rapid-acting coupling 12 is 15cm.
Embodiment 12, embodiment 1-8 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the length of described rapid-acting coupling 12 is 20cm.
Embodiment 13, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 6m, and the spray area of single defoaming device is 35m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume>=3000m
3situation.
Embodiment 14, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 7m, and the spray area of single defoaming device is 45m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume>=3000m
3situation.
Embodiment 15, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 8m, and the spray area of single defoaming device is 50m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume>=3000m
3situation.
Embodiment 16, embodiment 1-15 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: described froth breaking pipe 13 is metal hose, and length is 8m.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume>=3000m
3situation.
Embodiment 17, embodiment 1-15 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: described froth breaking pipe 13 is metal hose, and length is 9m.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume>=3000m
3situation.
Embodiment 18, embodiment 1-15 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: described froth breaking pipe 13 is metal hose, and length is 10m.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume>=3000m
3situation.
Embodiment 19, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 4m, and the spray area of single defoaming device is 20m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 20, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 5m, and the spray area of single defoaming device is 25m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 21, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 6m, and the spray area of single defoaming device is 30m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 22, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 5.5m, and the spray area of single defoaming device is 40m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 23, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 is metal hose, and length is 5m.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 24, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 is metal hose, and length is 6m.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 25, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 is metal hose, and length is 8m.It is medium that the present embodiment is applicable to coking chemical waste water day output, and producing foam cell useful volume is 1500-3000m
3situation.
Embodiment 26, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 3m, and the spray area of single defoaming device is 15m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume≤1500m
3situation.
Embodiment 27, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 3.5m, and the spray area of single defoaming device is 25m
2.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume≤1500m
3situation.
Embodiment 28, embodiment 1-12 is applicable in the defoaming system of Treatment of Coking Effluent described in any one: the spacing distance of adjacent two defoaming devices is 4m, and the spray area of single defoaming device is 30m
2it is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume≤1500m
3situation.
Embodiment 29, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 is metal hose, and length is 3m.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume≤1500m
3situation.
Embodiment 30, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 is metal hose, and length is 4m.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume≤1500m
3situation.
Embodiment 31, is applicable in the defoaming system of Treatment of Coking Effluent described in embodiment 1: described froth breaking pipe 13 is metal hose, and length is 5m.It is medium that the present embodiment is applicable to coking chemical waste water day output, produces foam cell useful volume≤1500m
3situation.
Embodiment 32, a kind of method using embodiment 1-31 defoaming system described in any one to carry out foam removing in wastewater treatment process,
(1) clear water in the defoamer in defoamer storage tank 7, clean water basin 10 is pumped in tube mixer 3 respectively by defoamer pipeline 4, clear water pipeline 9, abundant mixing, obtained defoamer mixed solution, defoamer mixed solution forms high velocity flow by the volume pump be located on defoamer pipeline 4 and clear water pipeline 9 in tube mixer 3; (2) defoamer mixed solution is under the impact of high velocity flow, through liquid delivery conduit 2, enters water distribution pipe; (3) defoamer mixed solution is through the rapid-acting coupling 12 of water distribution pipe 1 different positions, enters rapidly in froth breaking pipe 13, is penetrated by the shower nozzle 11 on top, carries out the removal of foam to product foam cell.
The present invention is not only applicable to the elimination of coking chemical waste water foam, and being equally applicable to the elimination that the industries such as surface active agent wastewater, electroplating wastewater, pharmaceutical wastewater, agricultural chemicals waste water, textile waste, leather waste water produce foam cell foam, is a kind of method of efficient stable.
Claims (10)
1. be applicable to a defoaming system for Treatment of Coking Effluent, it is characterized in that: comprise chemicals dosing plant, water distribution pipe and some defoaming devices, defoaming device interval is contained on water distribution pipe; Described chemicals dosing plant comprises defoamer storage tank, clean water basin and tube mixer, the liquid delivery conduit that tube mixer is provided with the defoamer pipeline connected with defoamer storage tank, the clear water pipeline connected with clean water basin and connects with water distribution pipe; Described defoaming device is provided with froth breaking pipe, and the lower end of froth breaking pipe is connected on water distribution pipe, and shower nozzle is equipped with in the upper end of froth breaking pipe.
2. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: the lower end of described froth breaking pipe is connected with water distribution pipe by rapid-acting coupling, and the length of described rapid-acting coupling is 5-20cm.
3. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: on described defoamer pipeline and clear water pipeline, be equipped with volume pump, valve, under meter from liquid inlet to liquid exit.
4. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, it is characterized in that: on described liquid delivery conduit, water distribution pipe, be equipped with valve, the water distribution pipe of liquid delivery conduit both sides is equipped with tensimeter, and described manometric scope is 0.1Mpa-3Mpa.
5. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: the spacing distance of adjacent two defoaming devices is 3-8m, and the spray area of single defoaming device is 15-50m
2.
6. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: described froth breaking pipe is metal hose, and length is 3-10m.
7. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: described shower nozzle is spiral nozzle.
8. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: the laying mode of described water distribution pipe take surrounding around property, aerial erection, monolateral around in one or more.
9. the defoaming system being applicable to Treatment of Coking Effluent according to claim 1, is characterized in that: described froth breaking pipe adopts fixed or portable.
10. use the defoaming system of claim 1-9 described in any one in wastewater treatment process, carry out a method for foam removing, it is characterized in that:
(1) defoamer in defoamer storage tank, the clear water in clean water basin are pumped in tube mixer respectively by defoamer pipeline, clear water pipeline, abundant mixing, obtained defoamer mixed solution, defoamer mixed solution forms high velocity flow by the volume pump be located on defoamer pipeline and clear water pipeline in tube mixer; (2) defoamer mixed solution is under the impact of high velocity flow, through liquid delivery conduit, enters water distribution pipe; (3) defoamer mixed solution is through the rapid-acting coupling of water distribution pipe different positions, enters rapidly in froth breaking pipe, is penetrated by the shower nozzle on top, carries out the removal of foam to product foam cell.
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| CN201510066051.9A CN104628070B (en) | 2015-02-09 | 2015-02-09 | A kind of defoaming system and method suitable for wastewater treatment |
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| CN201510066051.9A CN104628070B (en) | 2015-02-09 | 2015-02-09 | A kind of defoaming system and method suitable for wastewater treatment |
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| CN104628070B CN104628070B (en) | 2017-07-25 |
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| CN116514196A (en) * | 2023-05-31 | 2023-08-01 | 昆明理工大学 | Soil groundwater treatment pipe chute and installation method thereof |
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| CN116514196A (en) * | 2023-05-31 | 2023-08-01 | 昆明理工大学 | Soil groundwater treatment pipe chute and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104628070B (en) | 2017-07-25 |
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