CN106966542A - The processing method of steel wastewater - Google Patents
The processing method of steel wastewater Download PDFInfo
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- CN106966542A CN106966542A CN201710400295.5A CN201710400295A CN106966542A CN 106966542 A CN106966542 A CN 106966542A CN 201710400295 A CN201710400295 A CN 201710400295A CN 106966542 A CN106966542 A CN 106966542A
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
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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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- 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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- 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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of processing method of steel wastewater, comprise the following steps：Step 1: being passed through 2~3h of oxygen into steel wastewater first, filter afterwards, the steel wastewater after filtering is mixed with steel waste water treating agent, carry out neutralization reaction 3~5 minutes；Reacted 10~25 minutes Step 2: adding Sodium Metabisulfite；Step 3: adding steel waste water treating agent again, neutralization reaction 10~15 minutes is carried out；Reacted 5~15 minutes Step 4: adding Sodium Metabisulfite again, the mass volume ratio of Sodium Metabisulfite and steel wastewater is 1~3:100；Step 5: at 80~90 DEG C of temperature, 30~40min of steel wastewater in heating stepses four；Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 50~80 DEG C of 3~5kPa of vacuum pressure and temperature；Wherein, steel waste water treating agent includes following component：Aluminum sulfate, 10 20 polyacrylamides, urea element, zeolite, sepiolite, quick lime and activated carbon granule, the steel waste water treating agent are that granularity is nano level powder.
Description
Technical field
The present invention relates to a kind of processing method of steel wastewater.
Background technology
The production process of modern steel industry includes the production technologies such as material choosing, iron, steel-making (continuous casting), steel rolling.Steel and iron industry
Waste water is mainly derived from production process water, equipment and product cooling water, flue gas washing and place and rinsed etc., but 70%
Waste water is also derived from cooling water.Indirect cooling water, after cooling can reuse in use only by thermal pollution；It is directly cold
But water with product material etc. because directly contacting, containing polluter, need to after processing can reuse or tandem use.How to steel
Waste water in iron smelting process is handled and reclaimed, in order to recycling, and the reduction energy and resource consumption, are permanent
Since the problem studied always.
The content of the invention
It is an object of the invention to solve at least the above and/or defect, and provide at least will be described later excellent
Point.
It is a still further object of the present invention to provide a kind of processing method of steel wastewater.
Therefore, the technical scheme that the present invention is provided is：
A kind of processing method of steel wastewater, including：
Step 1: being passed through 2~3h of oxygen into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1~2:10,
Filter afterwards, remove precipitation, afterwards mix the steel wastewater after filtering with steel waste water treating agent, carry out neutralization reaction 3~5
Minute；
Reacted 10~25 minutes Step 2: adding Sodium Metabisulfite, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 5~10:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 10~15 minutes is carried out；
Reacted 5~15 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite gives up with the steel
The mass volume ratio of water is 1~3:100；
Step 5: at 80~90 DEG C of temperature, 30~40min of steel wastewater in heating stepses four；
Carried out Step 6: being carried out to the steel wastewater in step 5 at 50~80 DEG C of 3~5kPa of vacuum pressure and temperature
12~36h of vacuum distillation；
Wherein, the steel waste water treating agent includes the component of following parts by weight：10-20 parts of aluminum sulfate, 10-20 poly- third
Acrylamide, 10-20 parts of urea elements, 35-45 parts of zeolites, 10-20 parts of sepiolites and 30-40 parts of quick limes and 3~4 parts of activated carbons
Grain, the steel waste water treating agent is that granularity is nano level powder.
Preferably, in the processing method of described steel wastewater, in the step one, the volume of oxygen and steel wastewater
Than for 1.5:10.
Preferably, in the processing method of described steel wastewater, in the step 2, the Sodium Metabisulfite and institute
The mass volume ratio for stating steel wastewater is 7.5:100.
Preferably, in the processing method of described steel wastewater, in the step one, the steel waste water treating agent with
The mass volume ratio of the steel wastewater is 3~5:20.
Preferably, in the processing method of described steel wastewater, in the step 3, the steel waste water treating agent with
The mass volume ratio of the steel wastewater is 3~5:30.
Preferably, in the processing method of described steel wastewater, in the step 6, the vacuum distillation is in vacuum pressure
Vacuum distillation 24h is carried out at 65 DEG C of power 4kPa and temperature.
The present invention at least includes following beneficial effect：
The present invention is by co-oxidation reduction reaction, acid-base neutralization reaction and vacuum distillation processing method, in a short time
The processing of steel wastewater can be completed, can be recycled again, a kind of new way is provided for the processing of steel wastewater
Footpath, while also saving the energy, the efficiency of energy utilization improved in steel smelting procedure.The treatment effeciency of the present invention improves 5~
15%, efficiency of energy utilization improves 10~20%.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Embodiment
With reference to embodiment, the present invention is described in further detail, to make those skilled in the art with reference to specification
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or many
The presence or addition of individual other elements or its combination.
The present invention provides a kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through 2~3h of oxygen into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1~2:10,
Filter afterwards, remove precipitation, afterwards mix the steel wastewater after filtering with steel waste water treating agent, carry out neutralization reaction 3~5
Minute；
Reacted 10~25 minutes Step 2: adding Sodium Metabisulfite, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 5~10:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 10~15 minutes is carried out；
Reacted 5~15 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite gives up with the steel
The mass volume ratio of water is 1~3:100；
Step 5: at 80~90 DEG C of temperature, 30~40min of steel wastewater in heating stepses four；
Carried out Step 6: being carried out to the steel wastewater in step 5 at 50~80 DEG C of 3~5kPa of vacuum pressure and temperature
12~36h of vacuum distillation；
Wherein, the steel waste water treating agent includes the component of following parts by weight：10-20 parts of aluminum sulfate, 10-20 poly- third
Acrylamide, 10-20 parts of urea elements, 35-45 parts of zeolites, 10-20 parts of sepiolites and 30-40 parts of quick limes and 3~4 parts of activated carbons
Grain, the steel waste water treating agent is that granularity is nano level powder.
In one of embodiment of the present invention, preferably, in the step one, the volume of oxygen and steel wastewater
Than for 1.5:10.
In one of embodiment of the present invention, preferably, in the step 2, the Sodium Metabisulfite and institute
The mass volume ratio for stating steel wastewater is 7.5:100.
In one of embodiment of the present invention, preferably, in the step one, the steel waste water treating agent with
The mass volume ratio of the steel wastewater is 3~5:20.
In one of embodiment of the present invention, preferably, in the step 3, the steel waste water treating agent with
The mass volume ratio of the steel wastewater is 3~5:30.
In one of embodiment of the present invention, preferably, in the step 6, the vacuum distillation is in vacuum pressure
Vacuum distillation 24h is carried out at 65 DEG C of power 4kPa and temperature.
Embodiment 1
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 3h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 2:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 5 minutes；
Reacted 25 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 10 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 15 minutes is carried out；
Reacted 15 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 3:100；
Step 5: at 80~90 DEG C of temperature, 30~40min of steel wastewater in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 80 DEG C of vacuum pressure 5kPa and temperature
36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：20 parts of aluminum sulfate, 20 polyacrylamides
Amine, 20 parts of urea elements, 45 parts of zeolites, 20 parts of sepiolites and 40 parts of quick limes and 4 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 5%, and efficiency of energy utilization improves 10%.
Embodiment 2
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 2h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 3 minutes；
Reacted 10 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 5 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 10 minutes is carried out；
Reacted 5 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio is 1:100；
Step 5: at 80 DEG C of temperature, the steel wastewater 30min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 under vacuum pressure 3kPa and temperature 50 C
12~36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：10 parts of aluminum sulfate, 10 polyacrylamides
Amine, 10 parts of urea elements, 35 parts of zeolites, 10 parts of sepiolites and 30 parts of quick limes and 3 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 15%, and efficiency of energy utilization improves 20%.
Embodiment 3
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 2.5h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1.5:10, it
After filter, remove precipitation, afterwards mix the steel wastewater after filtering with steel waste water treating agent, progress neutralization reaction 4 minutes；
Reacted 17 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 7 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 12 minutes is carried out；
Reacted 10 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 2:100；
Step 5: at 85 DEG C of temperature, the steel wastewater 35min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 65 DEG C of vacuum pressure 4kPa and temperature
12~36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：15 parts of aluminum sulfate, 15 polyacrylamides
Amine, 15 parts of urea elements, 40 parts of zeolites, 15 parts of sepiolites and 35 parts of quick limes and 3.5 parts of activated carbon granules, the steel wastewater processing
Agent is that granularity is nano level powder.
The treatment effeciency of the present invention improves 6%, and efficiency of energy utilization improves 11%.
Embodiment 4
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 2h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 3 minutes, described
The mass volume ratio of steel waste water treating agent and the steel wastewater is 4:20.
Reacted 18 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 7 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 13 minutes is carried out；The steel waste water treating agent with
The mass volume ratio of the steel wastewater is 4:30.
Reacted 7 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio is 2:100；
Step 5: at 82 DEG C of temperature, the steel wastewater 32min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 75 DEG C of vacuum pressure 4kPa and temperature
18h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：16 parts of aluminum sulfate, 16 polyacrylamides
Amine, 15 parts of urea elements, 39 parts of zeolites, 15 parts of sepiolites and 35 parts of quick limes and 6 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 7%, and efficiency of energy utilization improves 12%.
Embodiment 5
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 2.5h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1.5:10, it
After filter, remove precipitation, afterwards mix the steel wastewater after filtering with steel waste water treating agent, progress neutralization reaction 4 minutes,
The mass volume ratio of the steel waste water treating agent and the steel wastewater is 4:20.
Reacted 17 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 7 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 14 minutes is carried out；The steel waste water treating agent with
The mass volume ratio of the steel wastewater is 4:30
Reacted 10 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 2:100；
Step 5: at 83 DEG C of temperature, the steel wastewater 36min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 under vacuum pressure 4kPa and temperature 70 C
12~36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：10-20 parts of aluminum sulfate, 10-20 poly- third
Acrylamide, 10-20 parts of urea elements, 35-45 parts of zeolites, 10-20 parts of sepiolites and 30-40 parts of quick limes and 3~4 parts of activated carbons
Grain, the steel waste water treating agent is that granularity is nano level powder.
The treatment effeciency of the present invention improves 8%, and efficiency of energy utilization improves 12%.
Embodiment 6
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 3h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 2:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 5 minutes, described
The mass volume ratio of steel waste water treating agent and the steel wastewater is 5:20.
Reacted 12 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 8 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 12 minutes is carried out；The steel waste water treating agent with
The mass volume ratio of the steel wastewater is 5:30
Reacted 15 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 2:100；
Step 5: at 80~90 DEG C of temperature, 30~40min of steel wastewater in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 80 DEG C of vacuum pressure 5kPa and temperature
36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：20 parts of aluminum sulfate, 20 polyacrylamides
Amine, 20 parts of urea elements, 45 parts of zeolites, 20 parts of sepiolites and 40 parts of quick limes and 4 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 9%, and efficiency of energy utilization improves 13%.
Embodiment 7
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 3h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 2:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 5 minutes, described
The mass volume ratio of steel waste water treating agent and the steel wastewater is 4:20.
Reacted 19 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 7 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 16 minutes is carried out；The steel waste water treating agent with
The mass volume ratio of the steel wastewater is 4:30.
Reacted 7 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio is 3:100；
Step 5: at 85 DEG C of temperature, the steel wastewater 36min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 80 DEG C of vacuum pressure 5kPa and temperature
19h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：16 parts of aluminum sulfate, 16 polyacrylamides
Amine, 19 parts of urea elements, 39 parts of zeolites, 16 parts of sepiolites and 36 parts of quick limes and 3 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 9%, and efficiency of energy utilization improves 19%.
Embodiment 8
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 3h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 2:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 5 minutes, described
The mass volume ratio of steel waste water treating agent and the steel wastewater is 4:20.
Reacted 19 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 7 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 10 minutes is carried out；The steel waste water treating agent with
The mass volume ratio of the steel wastewater is 3:30
Reacted 12 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 2:100；
Step 5: at 84 DEG C of temperature, the steel wastewater 34min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 80 DEG C of vacuum pressure 3kPa and temperature
12~36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：14 parts of aluminum sulfate, 14 polyacrylamides
Amine, 14 parts of urea elements, 38 parts of zeolites, 14 parts of sepiolites and 34 parts of quick limes and 4 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 14%, and efficiency of energy utilization improves 18%.
Embodiment 9
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 3h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 2:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 5 minutes, described
The mass volume ratio of steel waste water treating agent and the steel wastewater is 5:20.
Reacted 25 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 10 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 15 minutes is carried out；The steel waste water treating agent with
The mass volume ratio of the steel wastewater is 5:30
Reacted 15 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 3:100；
Step 5: at 90 DEG C of temperature, the steel wastewater 40min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 under vacuum pressure 3kPa and temperature 50 C
12h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：13 parts of aluminum sulfate, 13 polyacrylamides
Amine, 13 parts of urea elements, 36 parts of zeolites, 13 parts of sepiolites and 33 parts of quick limes and 3 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 13%, and efficiency of energy utilization improves 17%.
Embodiment 10
A kind of processing method of steel wastewater, comprises the following steps：
Step 1: being passed through oxygen 2h into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1:10, mistake afterwards
Filter, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out neutralization reaction 4 minutes, described
The mass volume ratio of steel waste water treating agent and the steel wastewater is 4:20.
Reacted 16 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 6 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 12.5 minutes is carried out；The steel waste water treating agent
Mass volume ratio with the steel wastewater is 4:30
Reacted 10 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio be 2:100；
Step 5: at 85 DEG C of temperature, the steel wastewater 35min in heating stepses four；
Vacuum distillation is carried out Step 6: being carried out to the steel wastewater in step 5 at 65 DEG C of vacuum pressure 4kPa and temperature
24h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：15 parts of aluminum sulfate, 15 polyacrylamides
Amine, 15 parts of urea elements, 38 parts of zeolites, 15 parts of sepiolites and 35 parts of quick limes and 3 parts of activated carbon granules, the steel waste water treating agent
It is nano level powder for granularity.
The treatment effeciency of the present invention improves 12%, and efficiency of energy utilization improves 18%.
Comparative example
Steel wastewater processing is completed according to prior art.
Module number and treatment scale described herein are the explanations for simplifying the present invention.The steel of the present invention is given up
The application of the processing method of water, modifications and variations will be readily apparent to persons skilled in the art.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (6)
1. a kind of processing method of steel wastewater, it is characterised in that comprise the following steps：
Step 1: being passed through 2~3h of oxygen into steel wastewater first, the volume ratio of oxygen and steel wastewater is 1~2:10, afterwards
Filtering, removes precipitation, afterwards mixes the steel wastewater after filtering with steel waste water treating agent, carries out 3~5 points of neutralization reaction
Clock；
Reacted 10~25 minutes Step 2: adding Sodium Metabisulfite, the matter of the Sodium Metabisulfite and the steel wastewater
It is 5~10 to measure volume ratio:100；
Step 3: adding steel waste water treating agent again, neutralization reaction 10~15 minutes is carried out；
Reacted 5~15 minutes Step 4: adding Sodium Metabisulfite again, the Sodium Metabisulfite and the steel wastewater
Mass volume ratio is 1~3:100；
Step 5: at 80~90 DEG C of temperature, 30~40min of steel wastewater in heating stepses four；
Depressurized Step 6: being carried out to the steel wastewater in step 5 at 50~80 DEG C of 3~5kPa of vacuum pressure and temperature
Distill 12~36h；
Wherein, the steel waste water treating agent includes the component of following parts by weight：10-20 parts of aluminum sulfate, 10-20 polyacrylamides
Amine, 10-20 parts of urea elements, 35-45 parts of zeolites, 10-20 parts of sepiolites and 30-40 parts of quick limes and 3~4 parts of activated carbon granules, institute
It is that granularity is nano level powder to state steel waste water treating agent.
2. the processing method of steel wastewater as claimed in claim 1, it is characterised in that in the step one, oxygen and steel
The volume ratio of waste water is 1.5:10.
3. the processing method of steel wastewater as claimed in claim 1, it is characterised in that in the step 2, described to lay particular stress on Asia
The mass volume ratio of sodium sulphate and the steel wastewater is 7.5:100.
4. the processing method of steel wastewater as claimed in claim 1, it is characterised in that in the step one, the steel gives up
The mass volume ratio of water treatment agent and the steel wastewater is 3~5:20.
5. the processing method of steel wastewater as claimed in claim 1, it is characterised in that in the step 3, the steel gives up
The mass volume ratio of water treatment agent and the steel wastewater is 3~5:30.
6. the processing method of steel wastewater as claimed in claim 1, it is characterised in that in the step 6, the decompression is steamed
Evaporate in progress vacuum distillation 24h at 65 DEG C of vacuum pressure 4kPa and temperature.
Priority Applications (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108773885A (en) * | 2018-07-04 | 2018-11-09 | 怀宁县恒源再生科技有限公司 | A kind of steel waste water treating agent and the method using inorganic agent processing waste water |
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| CN102398970A (en) * | 2010-09-13 | 2012-04-04 | 陈亚芬 | Steel waste water treating agent |
| CN102583860A (en) * | 2012-02-17 | 2012-07-18 | 江苏加德绿色能源有限公司 | Novel steel quality inspection wastewater treatment method |
| CN105084493A (en) * | 2015-09-28 | 2015-11-25 | 宁波高新区巴艺新材料科技有限公司 | Steel wastewater treatment method |
| CN105692771A (en) * | 2016-04-21 | 2016-06-22 | 苏州云舒新材料科技有限公司 | Material for treating wastewater containing heavy metal |
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| CN102398970A (en) * | 2010-09-13 | 2012-04-04 | 陈亚芬 | Steel waste water treating agent |
| CN102583860A (en) * | 2012-02-17 | 2012-07-18 | 江苏加德绿色能源有限公司 | Novel steel quality inspection wastewater treatment method |
| CN105084493A (en) * | 2015-09-28 | 2015-11-25 | 宁波高新区巴艺新材料科技有限公司 | Steel wastewater treatment method |
| CN105692771A (en) * | 2016-04-21 | 2016-06-22 | 苏州云舒新材料科技有限公司 | Material for treating wastewater containing heavy metal |
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| CN108773885A (en) * | 2018-07-04 | 2018-11-09 | 怀宁县恒源再生科技有限公司 | A kind of steel waste water treating agent and the method using inorganic agent processing waste water |
| CN108773885B (en) * | 2018-07-04 | 2021-06-08 | 怀宁县恒源再生科技有限公司 | Steel wastewater treating agent and method for treating wastewater by using same |
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