CN209065501U - A kind of desulfurization wastewater treatment system - Google Patents

A kind of desulfurization wastewater treatment system Download PDF

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Publication number
CN209065501U
CN209065501U CN201821914515.2U CN201821914515U CN209065501U CN 209065501 U CN209065501 U CN 209065501U CN 201821914515 U CN201821914515 U CN 201821914515U CN 209065501 U CN209065501 U CN 209065501U
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China
Prior art keywords
pump
pond
pipeline
reaction zone
wastewater treatment
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Expired - Fee Related
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CN201821914515.2U
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Chinese (zh)
Inventor
杨福兵
王越
莫奕奇
解明丽
陈俊
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Nanjing Dongda Energy Engineering Design Institute Co Ltd
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Nanjing Dongda Energy Engineering Design Institute Co Ltd
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Abstract

The utility model discloses a kind of desulfurization wastewater treatment systems, and inlet water lifting pumps, integrated settling equipment, water outlet pump and the production pond of wastewater equalization pond rear end are sequentially arranged in including wastewater equalization pond, along the pipeline order of connection;The integrated settling equipment includes the reaction zone of integrated setting, decanting zone and filtering area from left to right;Blender is equipped with inside the reaction zone, the upper end of the reaction zone is disposed with screw feeder, and the screw feeder is equipped with Scatula, can add flocculating agent into integrated settling equipment by Scatula and screw feeder;Sludge delivery pump is connected on the downside of the decanting zone;The outlet end of the sludge delivery pump is connected with filter press through pipeline.The utility model uses integrated settling equipment, solves the problems, such as that part power plant land used is nervous;The flocculating setting agent used is matched through effective component, keeps process simple, easily operated;Reduce precipitating sludge amount, making that treated, sulfur-containing waste water meets emission request.

Description

A kind of desulfurization wastewater treatment system
Technical field
The utility model relates to a kind of desulfurization wastewater treatment systems, belong to desulfurization wastewater processing technology field.
Background technique
Currently, the most sulfur removal technology of the industrial applications such as thermal power generation is Gypsum Wet, but the gypsum of the process Dehydration and cleaning system can generate a certain amount of desulfurization wastewater.Desulfurization wastewater slant acidity (pH 4-5.5), wherein suspension content It is higher, the heavy metals exceeding standards such as mercury, copper, zinc, chromium, simultaneously containing a large amount of chloride ions, sulfate, sulphite etc., if direct emission Environment will be caused greatly to impact.Main desulfurization wastewater processing technique to be used domestic at present is that neutralization-precipitating-flocculation-is clear Clearly-filtering, which has very strong removal to act on most of metal and suspended matter, but disadvantage is also fairly obvious: first is that Occupation area of equipment is larger, for the power plant of part land used anxiety, often by shortening sewage in clarifier Residence time reduces land occupation, will so reduce the treatment effeciency of clarifier, and eventually leads to standard water discharge difficulty;Second is that whole The medicament kind that a process flow needs is more, prepare it is cumbersome, it is inconvenient;Third is that will increase using milk of lime as neutralizer A large amount of precipitating waste residues.
Utility model content
In view of the above-mentioned problems of the prior art, the utility model provides a kind of desulfurization wastewater treatment system, using one Body precipitation apparatus solves the problems, such as that part power plant land used is nervous;The medicament used is matched through effective component, makes process Simply, easily operated;Reduce precipitating sludge amount, making that treated, sulfur-containing waste water meets emission request.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of desulfurization wastewater treatment system, including wastewater equalization pond, it is sequentially arranged in along the pipeline order of connection waste water adjusting Inlet water lifting pumps, integrated settling equipment, water outlet pump and the production pond of pond rear end;The integrated settling equipment includes from a left side Reaction zone, decanting zone and the filtering area for integrated setting of turning right;Be equipped with blender inside the reaction zone, the reaction zone it is upper End is disposed with screw feeder, and the screw feeder is equipped with Scatula, and flocculating agent passes through Scatula and screw feeder Device is added in integrated settling equipment;Sludge delivery pump is connected on the downside of the decanting zone;The sludge delivery pump goes out Mouth end is connected with filter press through pipeline.
Preferably, the wastewater equalization pond uses interior recyclegas agitating device.
Preferably, more medium filter is equipped between the water outlet pump and production pond.
Preferably, back washing device is connected on the filter.
Preferably, the back washing device include backwash water pump, the backwash blower for being connected to more medium filter bottom and Dredge pump;The arrival end of the backwash water pump connects production pond, outlet end through pipeline and connects more medium filter through pipeline;It is described The arrival end of dredge pump connect through pipeline with more medium filter, the arrival end of outlet end and sludge delivery pump connects.
The utility model solves the problems, such as that part power plant land used is nervous by using integrated settling equipment, while Simplify the process flow of desulfurization wastewater;Medicament used is matched through effective component, is had both adjusting and is precipitated flocculated effect, makes Process is simple, easily operated;Treated, and sulfur-containing waste water meets emission request, and there is no lead due to short in the clarifying basin residence time The problem for causing effluent quality not up to standard, while compared with traditional handicraft needs to add milk of lime, greatly reduce precipitating sludge amount.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is more medium filter structure and connection relationship diagram.
Detailed description of the invention: 1, wastewater equalization pond, 2, inlet water lifting pumps, 3, integrated settling equipment, 31, reaction zone, 32, make up a prescription Case, 33, screw feeder, 34, decanting zone, 35, filtering area, 4, water outlet pump, 5, more medium filter, 51, backwash water pump, 52, Backwash blower, 53, dredge pump, 6, production pond, 7, filter press, 8, sludge delivery pump.
Specific embodiment
With reference to the accompanying drawing, a specific embodiment of the utility model is described in detail, it is to be understood that this The protection scope of utility model is not limited by the specific implementation.
As depicted in figs. 1 and 2, a kind of desulfurization wastewater treatment system provided by the utility model, including wastewater equalization pond 1, Inlet water lifting pumps 2, the integrated settling equipment 3, water outlet pump 4 of 1 rear end of wastewater equalization pond are sequentially arranged in along the pipeline order of connection And produce pond 6;The integrated settling equipment 3 includes the reaction zone 31 of integrated setting, decanting zone 34 and mistake from left to right Filter area 35;Blender is equipped with inside the reaction zone 31, the upper end of the reaction zone 31 is disposed with screw feeder 33, the spiral shell It revolves dispenser 33 and is equipped with Scatula 32, flocculating agent is added to integrated settling by Scatula 32 and screw feeder 33 In equipment 3;The downside of the decanting zone 34 is connected with sludge delivery pump 8;The outlet end of the sludge delivery pump 8 is connected through pipeline There is filter press 7.Wherein flocculating agent is matched by calcium hydroxide, flocculation aid and organic heavy metal agent for capturing, has both adjusting Flocculated effect is precipitated, stream more relative to medicament kind needed for traditional desulfuration waste water treatment process and corresponding dispensing equipment For journey is cumbersome, process can be made simple, easily operated;In addition, flocculation aid can select polymeric aluminum sulfate iron, polymeric aluminum sulfate iron It is a kind of novel inorganic polymer flocculant, with purifying water effect is good, price is low, treated, and water quality is completely superior to national mark Quasi- advantage, is the preferable product for replacing common flocculant of polymeric aluminium chloride.
Waste water enters wastewater equalization pond 1 through collecting, and the tune that sodium hydroxide carries out water quality and quantity is added into wastewater equalization pond 1 Section, is adjusted to 11-13 for the pH of waste water;Then waste water is pumped through inlet water lifting pumps 2 to the reaction zone 31 of integrated settling equipment 3 In, flocculating agent is added into reaction zone 31 by Scatula 32 and screw feeder 33 at this time, is made in the stirring of blender It is uniformly mixed and then is flowed into decanting zone 34 rapidly with flocculating agent with lower waste water;Under the action of calcium hydroxide, waste water In SO4 2-Ion generates calcium sulfate, under the action of organic heavy metal agent for capturing, Cu2+、Zn2+、Hg+、Cr3+Equal heavy metals from Son is efficiently removed, while the bottom of decanting zone 34 is precipitated to by flocculation aid quickening, squeezes into pressure finally by sludge delivery pump 8 7 filters pressing of filter disposition;And clear water part flows into filtering area 5 and is filtered, and is then driven by water outlet pump 4 and produces the progress of pond 6 It recycles.
The wastewater equalization pond 1 uses interior recyclegas agitating device as a further improvement of the utility model,.Directly Using the gas of 1 water level upper space of wastewater equalization pond as gas source, the interior recyclegas formed inside wastewater equalization pond 1 is stirred It mixes, can avoid corrosion of the acid waste water to Mixing Machine when mechanical stirring, while can also reach energy-saving and environment-friendly effect.
More medium filter 5 is equipped between the water outlet pump 4 and production pond 6 as a further improvement of the utility model,. The cleared water of filtering area 35 can further be filtered, keep the source quality flowed ultimately into production pond 6 more preferable, just In subsequent recycling.
Back washing device is connected on the filter 5 as a further improvement of the utility model,.Each workflow Afterwards, it is rinsed by the inside to more medium filter 5, the dirt of residual in the filter can be discharged, prevent its entrance It produces in pond 6, while the service life of more medium filter 5 can be extended.
The back washing device includes backwash water pump 51, is connected to multimedium mistake as a further improvement of the utility model, The backwash blower 52 and dredge pump 53 of 5 bottom of filter;The arrival end of the backwash water pump 51 is connected through pipeline to be produced pond 6, goes out More medium filter 5 is connected through pipeline in mouth end;The arrival end of the dredge pump 53 connect with more medium filter 5 through pipeline, goes out Mouth end is connect with the arrival end of sludge delivery pump 8.Backwash water pump 51 is under the cooperation of backwash blower 52, by from production pond 6 The impurity for being rinsed the inside of more medium filter 5, while filtering out is pumped to flow into through dredge pump 53 and sludge delivery pump 8 In filter press 7.
In use, waste water is introduced into wastewater equalization pond 1, the pH that sodium hydroxide adjusts waste water is added;Then waste water is through intaking Elevator pump 2 is pumped into reaction zone 31, and flocculating agent is added by Scatula 32 and screw feeder 33;Waste water and sedimentation are flocculated Agent flows into decanting zone 34 after mixing rapidly, and calcium hydroxide makes SO4 2-Ion generates calcium sulfate, and the capture of organic heavy metal agent for capturing is gone Except Cu2+、Zn2+、Hg+、Cr3+Etc. heavy metal ion, flocculation aid accelerate precipitating;Finally it flow to the settled sludge of 34 bottom of decanting zone Filter press 7 is squeezed by sludge delivery pump 8 and carries out filters pressing disposition, and clear water part flows into filtering area 5 and is filtered, then by going out Water pump 4 is driven into production pond 6 and is recycled.
Finally, the utility model saves tradition using integrated settling equipment by a kind of desulfurization wastewater treatment system It is nervous to solve the problems, such as part power plant land used, while also simplifying desulfurization for the facilities such as sedimentation basin, neutralization pond used in technique The process flow of waste water;, stream more relative to medicament kind needed for traditional desulfuration waste water treatment process and corresponding dispensing equipment For journey is cumbersome, medicament used in the utility model is matched through effective component, is had both adjusting and is precipitated flocculated effect, makes process Simply, easily operated;Treated, and sulfur-containing waste water meets emission request, and there is no cause due to short in the clarifying basin residence time Water water quality problem not up to standard greatly reduces precipitating sludge amount compared with traditional handicraft needs to add milk of lime, can save one Partial sludge disposal costs.
Disclosed above is only several specific embodiments of the utility model, and still, the utility model embodiment is not office It is limited to this, the changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.

Claims (5)

1. a kind of desulfurization wastewater treatment system, which is characterized in that including wastewater equalization pond (1), along the pipeline order of connection successively cloth It sets the inlet water lifting pumps (2) in wastewater equalization pond (1) rear end, integrated settling equipment (3), water outlet pump (4) and produces pond (6);The integrated settling equipment (3) includes reaction zone (31), decanting zone (34) and the filtering of integrated setting from left to right Area (35);Blender is equipped with inside the reaction zone (31), the upper end of the reaction zone (31) is disposed with screw feeder (33), The screw feeder (33) is equipped with Scatula (32), and flocculating agent is thrown by Scatula (32) and screw feeder (33) It is added in integrated settling equipment (3);Sludge delivery pump (8) are connected on the downside of the decanting zone (34);The sludge conveying The outlet end of pump (8) is connected with filter press (7) through pipeline.
2. a kind of desulfurization wastewater treatment system according to claim 1, which is characterized in that the wastewater equalization pond (1) is adopted With interior recyclegas agitating device.
3. a kind of desulfurization wastewater treatment system according to claim 1, which is characterized in that the water outlet pump (4) and production water More medium filter (5) are equipped between pond (6).
4. a kind of desulfurization wastewater treatment system according to claim 3, which is characterized in that the more medium filter (5) On be connected with back washing device.
5. a kind of desulfurization wastewater treatment system according to claim 4, which is characterized in that the back washing device includes backwash Water pump (51), the backwash blower (52) and dredge pump (53) for being connected to more medium filter (5) bottom;The backwash water pump (51) arrival end is connected through pipeline produces pond (6), outlet end through pipeline connection more medium filter (5);The dredge pump (53) arrival end connect through pipeline with more medium filter (5), the arrival end of outlet end and sludge delivery pump (8) connects.
CN201821914515.2U 2018-11-21 2018-11-21 A kind of desulfurization wastewater treatment system Expired - Fee Related CN209065501U (en)

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Application Number Priority Date Filing Date Title
CN201821914515.2U CN209065501U (en) 2018-11-21 2018-11-21 A kind of desulfurization wastewater treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821914515.2U CN209065501U (en) 2018-11-21 2018-11-21 A kind of desulfurization wastewater treatment system

Publications (1)

Publication Number Publication Date
CN209065501U true CN209065501U (en) 2019-07-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410270A (en) * 2020-03-27 2020-07-14 湖南钜晟环保科技工程有限公司 Process and system for treating desulfurization wastewater by membrane method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410270A (en) * 2020-03-27 2020-07-14 湖南钜晟环保科技工程有限公司 Process and system for treating desulfurization wastewater by membrane method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190705

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