CN106630242A - Process and device for rapidly removing total organic carbon and chroma in coking reverse osmosis concentrated water - Google Patents

Process and device for rapidly removing total organic carbon and chroma in coking reverse osmosis concentrated water Download PDF

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Publication number
CN106630242A
CN106630242A CN201510718600.6A CN201510718600A CN106630242A CN 106630242 A CN106630242 A CN 106630242A CN 201510718600 A CN201510718600 A CN 201510718600A CN 106630242 A CN106630242 A CN 106630242A
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reverse osmosis
concentrated water
osmosis concentrated
coking reverse
acid
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李恩超
武晟
杨倩宇
胡利光
陈砚秋
郑贻裕
徐小龙
顾德仁
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Baoshan Iron and Steel Co Ltd
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Baoshan Iron and Steel Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • C02F2101/18Cyanides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/32Hydrocarbons, e.g. oil
    • C02F2101/322Volatile compounds, e.g. benzene
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/34Organic compounds containing oxygen
    • C02F2101/345Phenols
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/38Organic compounds containing nitrogen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage 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)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a method for rapidly removing total organic carbon and chroma in coking reverse osmosis concentrated water. The method comprises the following steps: enabling coking reverse osmosis concentrated water to flow into an acid-base regulating reservoir, wherein the pH value of the coking reverse osmosis concentrated water passing through the acid-base regulating reservoir is 7-8 when the retention time in the acid-base regulating reservoir is 3-5 minutes; and pumping a high-efficiency decarburizing agent into a pipeline mixer by a decarburizing agent dosing pump, and fully mixing the high-efficiency decarburizing agent and the coking reverse osmosis concentrated water together in the pipeline mixer so as to enter an oblique board sedimentation tank, thereby rapidly removing the total organic carbon and chroma in the coking reverse osmosis concentrated water. After the coking reverse osmosis concentrated water passes through the whole process flow, the total organic carbon in effluent is 4-11mg/L, and the chroma is 2-15NTU. According to the technical scheme of the invention, the environmental pollution can be reduced, and the increasingly stringent environmental protection regulations can be positively coped.

Description

The technique and device of total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of technology of coking reverse osmosis concentrated water advanced treating And method.
Background technology
China is a coke big country.Coking is typical case's " two high money " of high energy consumption, high pollution, resource Industry.Substantial amounts of waste water can be discharged during production coke, 100,000,000 tons of coking chemical waste waters about discharge every year in China.
Coking chemical waste water is the waste water that coal is formed in high-temperature retorting and gas purification, chemical productss subtractive process, Wherein containing tens kinds of pollutant such as phenol, ammonia nitrogen, cyanogen, benzene, pyridine, indole and quinoline, complicated component has Organic pollutants concentration and Colority of Sewage Water height, toxicity are big, and property is highly stable, is that a kind of typical difficult degradation is organic Waste water.
At present country just steps up to the discharge standard of waste water and " energy-saving and emission-reduction " policy of correlation, and upper 2012 Promulgate new from October 1, in《Coking chemistry emission of industrial pollutants standard》(GB16171-2012), its In《Coking chemistry emission of industrial pollutants standard》Require from 1 day January in 2015, what existing enterprise performed Coking drainage index have strict requirements.
Waste water recycling is the final goal of wastewater treatment, is the enforcement means that industry energy conservation is reduced discharging.It is simple at present Coking waste water reuse technology cannot meet enterprise requirements, and the coking chemical waste water after biochemical treatment is carried out into depth Reuse after reason is inevitable trend.
Domestic coking wastewater deep treatment technology is to adopt nanofiltration and reverse osmosis technology by coking wastewater deep treatment Afterwards reuse is used as iron and steel enterprise's Municipal Sewage for Circulating, but the subject matter for existing is the place of the concentrated water that reverse osmosiss are produced Reason.At present only Baosteel adopts ultrafiltration+nanofiltration+reverse osmosis advanced Treatment of Wastewater in Coking.
Therefore, directly discharge if the pollutant of reverse osmosis process generation are unprocessed, will certainly be to water body ring Border produces greatly harm.
The purpose of the present invention is exactly the water quality and quantity situation according to coking reverse osmosis concentrated water, is developed quick, efficient The method and apparatus for removing total organic carbon and colourity.Exploitation coking reverse osmosis concentrated water quick process technique and Device, with friendly process and energy-saving and emission-reduction as main task, reduces environmental pollution, responds actively increasingly strict Legislations of environmental protection.
The content of the invention
The problem of environmental pollution of total organic carbon and colourity in order to solve coking reverse osmosis concentrated water, the invention provides A kind of quick processing system of coking reverse osmosis concentrated water, using the coking reverse osmosis thick water treatment system of the present invention, Process is simple is quickly environmentally friendly steel wastewater environmental protection handling process.
A kind of method of total organic carbon and colourity in quick removal coking reverse osmosis concentrated water, using acid-alkali accommodation pond and Efficient decarburizer, it is characterised in that methods described comprises the steps:
So that coking reverse osmosis concentrated water flows into the acid-alkali accommodation pond equipped with PH meters and robot control system(RCS) by intake pump,
Into acid-alkali accommodation pond coking reverse osmosis concentrated water PH be 5~10, the acid-alkali accommodation pond time of staying be 3~ 5min,
In acid-alkali accommodation pond, by controlling PH robot control system(RCS)s acid-base groove and soda acid dosing pump are controlled, it is determined that acid and The dosage of alkali so that the PH of coking reverse osmosis concentrated water is 7~8 behind acid-alkali accommodation pond,
Coking reverse osmosis concentrated water enters pipe-line mixer, meanwhile,
Efficient decarburizer in medicine system squeezes into pipe-line mixer by decarburizer dosing pump, in line-blending In device, efficient decarburizer and coking reverse osmosis concentrated water enter together inclined-plate clarifying basin after being sufficiently mixed, thus quickly Remove the total organic carbon and colourity in coking reverse osmosis concentrated water.
According to the present invention, the coking reverse osmosis concentrated water above-mentioned whole process operation time is less than 21min.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its It is characterised by, the chemical feeding quantity of efficient decarburizer is 500~900mg/L, and efficient decarburizer and coking are reverse osmosis concentrated The incorporation time of water is 15~30 seconds.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its It is characterised by, the preparation method of the efficient decarburizer is as follows:
1) gangue is modified:
Gangue composition (mass percent):SiO2:28~49%;Al2O3:21~42%;C:16~35%, Other inevitable compositions):3~15%,
Gangue and sodium carbonate mix:It is living in the high temperature furnace that atmosphere is nitrogen protection in batch mixer after mix grinding Change,
Solid is put in sodium hydroxide solution after cooling, 60 DEG C of stirring in water bath are total to after heat, place into hydrochloric acid solution In, in 70 DEG C of stirring in water bath, cleaned with distilled water after cooling, modified gangue powder is obtained;
2) the PFSC aqueous solution that mass percent is 11~20% is prepared, then according to polysilicon acid chlorination Water solution:Modified gangue powder:PDDA liquid-solid ratio 30:5~8:2 ratios Prepare mixed solution;
3) solution is transferred to into 12~16h of reaction in ultrasound-water heating kettle, efficient decarburizer is prepared after cooling.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its Its inevitable composition includes other types of gangue.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, Step 1), gangue and sodium carbonate are blended in 5~10min of mix grinding in batch mixer, are nitrogen protection in atmosphere Activate 2~3 hours in high temperature furnace, solid is put in sodium hydroxide solution after cooling, in 60 DEG C of stirring in water bath Altogether heat 2~3 hours, in placing into hydrochloric acid solution, in 70 DEG C of stirring in water bath 2~3 hours, with distillation after cooling Water is cleaned 3~5 times, and modified gangue powder is obtained.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, Step 3) solution is transferred to into 12~16h of reaction in ultrasound-water heating kettle, the temperature for adjusting reaction system exists 105~135 DEG C, efficient decarburizer is prepared after cooling.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its Be characterised by, in the preparation method step 1 of the efficient decarburizer) gangue it is modified in, gangue particle diameter For 100~180 mesh, gangue and sodium carbonate are with (mass ratio) 3~6:2 mixing.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its Be characterised by, in the preparation method step 1 of the efficient decarburizer) gangue it is modified in, the temperature of high temperature furnace Spend for 780 DEG C, solid is put into water-bath in the sodium hydroxide solution of 4-6mol/L after cooling, hydrochloric acid solution is The hydrochloric acid solution of 2.5-3.5mol/L.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its It is characterised by, after coking reverse osmosis concentrated water and decarburizer mixing inclined-plate clarifying basin, stopping in inclined-plate clarifying basin is entered The time is stayed to be 5~15min, then coking reverse osmosis concentrated water is by going out water pump discharge.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its It is characterised by, after whole technological process, water outlet total organic carbon is 4~11 to the coking reverse osmosis concentrated water Mg/L, colourity is 2~15NTU, and effluent quality electrical conductivity is 17890~21300us/cm, and PH is 6~9.
According to the method for total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its It is characterised by, the water electric conductivity of the coking reverse osmosis concentrated water is 17890~21300us/cm, PH is 5~ 10, total organic carbon is 32~55mg/L, and colourity is 67~145NTU.
A kind of device of total organic carbon and colourity in quick removal coking reverse osmosis concentrated water, described device includes pipeline Blender, it is characterised in that the pipe-line mixer is used for efficient decarburizer and coking reverse osmosis concentrated water is fully mixed Close,
The pipe-line mixer front sequence is provided with one-level intake pump 1,2, two grades of acid-alkali accommodation pond intake pump 5,
Acid-alkali accommodation pond 2 is connected with acid-base groove 3 and soda acid dosing pump 4,
Inclined-plate clarifying basin 10, discharge pipeline 11 are sequentially set with after the pipe-line mixer 9 and go out water pump 12, institute State pipe-line mixer 9 and be connected with the medicine system 6 equipped with efficient decarburizer 7 and coagulant dosing pump 8.
According to the device of total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water of the present invention, its It is characterised by, equipped with PH meters and robot control system(RCS) in acid-alkali accommodation pond, by controlling PH robot control system(RCS)s soda acid is controlled Groove and soda acid dosing pump, determine the dosage of bronsted lowry acids and bases bronsted lowry.
The present invention proposes the technical scheme of coking reverse osmosis concentrated water advanced treating, fast and effectively solves reverse osmosis The problem of environmental pollution of saturating concentrated water total organic carbon and colourity.Therefore the invention belongs to iron and steel environmental protection production technology, With good social benefit and environmental benefit.
Description of the drawings
The process system of total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated waters of Fig. 1, including one-level Intake pump 1, acid-alkali accommodation pond 2, acid-base groove 3,4, two grades of intake pumps 5 of soda acid dosing pump, medicine system 6, Efficiently decarburizer 7, coagulant dosing pump 8, pipe-line mixer 9, inclined-plate clarifying basin 10, discharge pipeline 11, go out Water pump 12.
Specific embodiment
The present invention is elaborated with reference to the accompanying drawings and examples.
Embodiment 1:
The process system of total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water, including one-level water inlet Pump, acid-alkali accommodation pond, acid-base groove, soda acid dosing pump, two grades of intake pumps, medicine system, efficient decarburizer, Decarburizer dosing pump, pipe-line mixer, inclined-plate clarifying basin, discharge pipeline, go out water pump.
The water electric conductivity of the coking reverse osmosis concentrated water is 19570s/cm, and PH is 6, and total organic carbon is 52 Mg/L, colourity is 132NTU.
The coking reverse osmosis concentrated water flows into acid-alkali accommodation pond by intake pump.
Coking reverse osmosis concentrated water PH into acid-alkali accommodation pond is 6, is 3min in the acid-alkali accommodation pond time of staying. Equipped with PH meters and robot control system(RCS) in acid-alkali accommodation pond, by controlling, PH robot control system(RCS)s control acid-base groove and soda acid adds Teat pipette, determines the dosage of bronsted lowry acids and bases bronsted lowry.
The PH of coking reverse osmosis concentrated water is 7.3 behind acid-alkali accommodation pond.
Coking reverse osmosis concentrated water enters pipe-line mixer by two grades of intake pumps, while efficient in medicine system Decarburizer squeezes into pipe-line mixer by decarburizer dosing pump, abundant with coking reverse osmosis concentrated water in pipe-line mixer Mixing, the time is 25 seconds, and inclined-plate clarifying basin is then entered together.Efficiently the chemical feeding quantity of decarburizer is 800mg/L.
The efficient decarburizer of the present invention is prepared from for the specially good effect of coking reverse osmosis concentrated water, can quickly remove coking Total organic carbon and colourity in reverse osmosis concentrated water.The method of preparation:1) gangue is modified:The bastard coal of selection Stone composition (mass percent):SiO2:32%;Al2O3:31%;C:31%, other compositions:6%.Choose Particle diameter is the gangue of 120 mesh, by gangue and sodium carbonate (mass ratio) 5:2 mixing, then in batch mixer Middle mix grinding 10min.Activate 2 hours in the high temperature furnace that atmosphere is nitrogen protection, the temperature of high temperature furnace is 780 DEG C, solid is put in the sodium hydroxide solution of 5mol/L after cooling, it is hot 2 hours altogether in 60 DEG C of stirring in water bath, In placing into the hydrochloric acid solution of 3mol/L, in 70 DEG C of stirring in water bath 3 hours, cleaned with distilled water after cooling 3 times, modified gangue powder is obtained.2) the PFSC aqueous solution that mass percent is 16% is prepared, Then according to PFSC aqueous solution, suction modified gangue powder:PDDA liquid Admittedly than 30:5:2 proportions mixed solutions.3) solution is transferred in ultrasound-water heating kettle, the response time is 15h, adjusts the temperature of reaction system at 115 DEG C.Efficient decarburizer is prepared after cooling.
Inclined-plate clarifying basin is entered after coking reverse osmosis concentrated water and the mixing of efficient decarburizer, in the stop of inclined-plate clarifying basin Time is 10min, and then coking reverse osmosis concentrated water is by going out water pump discharge.Sludge pump is arranged at inclined-plate clarifying basin bottom, Sludge under precipitation is discharged by sludge pump.
After whole technological process, effluent quality conductance conductance is 20500 to the coking reverse osmosis concentrated water Us/cm, PH are 7.7, and total organic carbon is 8mg/L, and colourity is 9NTU.The whole process operation time is 13.25 Min, therefore, fast and effectively eliminate the total organic carbon and colourity in coking reverse osmosis concentrated water.
Embodiment 2
The process system of total organic carbon and colourity in a kind of quick removal coking reverse osmosis concentrated water, including one-level water inlet Pump, acid-alkali accommodation pond, acid-base groove, soda acid dosing pump, two grades of intake pumps, medicine system, efficient decarburizer, Decarburizer dosing pump, pipe-line mixer, inclined-plate clarifying basin, discharge pipeline, go out water pump.
The water electric conductivity of the coking reverse osmosis concentrated water is 18300us/cm, and PH is 9, and total organic carbon is 45 Mg/L, colourity is 117NTU.
The coking reverse osmosis concentrated water flows into acid-alkali accommodation pond by intake pump.
Coking reverse osmosis concentrated water PH into acid-alkali accommodation pond is 10, is 4min in the acid-alkali accommodation pond time of staying. Equipped with PH meters and robot control system(RCS) in acid-alkali accommodation pond, by controlling, PH robot control system(RCS)s control acid-base groove and soda acid adds Teat pipette, determines the dosage of bronsted lowry acids and bases bronsted lowry.
The PH of coking reverse osmosis concentrated water is 7.6 behind acid-alkali accommodation pond.
Coking reverse osmosis concentrated water enters pipe-line mixer by two grades of intake pumps, while efficient in medicine system Decarburizer squeezes into pipe-line mixer by decarburizer dosing pump, abundant with coking reverse osmosis concentrated water in pipe-line mixer Mixing, the time is 20 seconds, and inclined-plate clarifying basin is then entered together.Efficiently the chemical feeding quantity of decarburizer is 750mg/L.
The efficient decarburizer of the present invention is prepared from for the specially good effect of coking reverse osmosis concentrated water, can quickly remove coking Total organic carbon and colourity in reverse osmosis concentrated water.The method of preparation:1) gangue is modified:The bastard coal of selection Stone composition (mass percent):SiO2:39%;Al2O3:25%;C:28%, other compositions:8%.Choosing The gangue that particle diameter is 100 mesh is taken, by gangue and sodium carbonate (mass ratio) 3:2 mixing, then in batch mixing Mix grinding 8min in machine.Activate 3 hours in the high temperature furnace that atmosphere is nitrogen protection, the temperature of high temperature furnace is 780 DEG C, solid is put in the sodium hydroxide solution of 5mol/L after cooling, it is hot 3 hours altogether in 60 DEG C of stirring in water bath, In placing into the hydrochloric acid solution of 3mol/L, in 70 DEG C of stirring in water bath 2 hours, cleaned with distilled water after cooling 5 times, modified gangue powder is obtained.2) the PFSC aqueous solution that mass percent is 19% is prepared, Then according to PFSC aqueous solution, suction modified gangue powder:PDDA liquid Admittedly than 30:7:2 proportions mixed solutions.3) solution is transferred in ultrasound-water heating kettle, the response time is 13h, adjusts the temperature of reaction system at 125 DEG C.Efficient decarburizer is prepared after cooling.
Inclined-plate clarifying basin is entered after coking reverse osmosis concentrated water and decarburizer mixing, in the time of staying of inclined-plate clarifying basin For 5~15min, then coking reverse osmosis concentrated water is by going out water pump discharge.Sludge pump is arranged at inclined-plate clarifying basin bottom, Sludge under precipitation is discharged by sludge pump.
After whole technological process, effluent quality conductance conductance is 18420 to the coking reverse osmosis concentrated water Us/cm, PH are 7.8, and total organic carbon is 7mg/L, and colourity is 11NTU.The whole process operation time 13.20 Min, therefore, fast and effectively eliminate the total organic carbon and colourity in coking reverse osmosis concentrated water.
In sum, the quick processing system of coking reverse osmosis concentrated water of the present invention realizes reverse osmosis concentrated water De- organic carbon and colourity, present invention process one-time investment is low;Water treatment effect is stablized, and has fully demonstrated section The effect that can be reduced discharging, is environmentally friendly green process for producing steel and iron.
Certainly, those skilled in the art in the art are it should be appreciated that above-described embodiment is intended merely to explanation The present invention, rather than as limitation of the invention, as long as in the spirit of the present invention, to above-mentioned reality Applying the conversion of example, deformation all will fall within the scope of the claims.

Claims (10)

1. in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, using acid-alkali accommodation pond and efficient decarburizer, it is characterised in that methods described comprises the steps:
So that coking reverse osmosis concentrated water flows into the acid-alkali accommodation pond equipped with PH meters and robot control system(RCS) by intake pump,
Coking reverse osmosis concentrated water PH into acid-alkali accommodation pond is 5~10, is 3~5min in the acid-alkali accommodation pond time of staying,
In acid-alkali accommodation pond, acid-base groove and soda acid dosing pump are controlled by controlling PH robot control system(RCS)s, determine the dosage of bronsted lowry acids and bases bronsted lowry so that the PH of coking reverse osmosis concentrated water is 7~8 behind acid-alkali accommodation pond,
Coking reverse osmosis concentrated water enters pipe-line mixer, meanwhile,
Efficient decarburizer in medicine system squeezes into pipe-line mixer by decarburizer dosing pump, in pipe-line mixer, enter inclined-plate clarifying basin after efficiently decarburizer and coking reverse osmosis concentrated water are sufficiently mixed together, thus quickly remove total organic carbon and colourity in coking reverse osmosis concentrated water.
2. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, it is characterised in that efficiently the chemical feeding quantity of decarburizer is 15~30 seconds for the incorporation time of 500~900mg/L, efficient decarburizer and coking reverse osmosis concentrated water.
3. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, it is characterised in that the preparation method of the efficient decarburizer is as follows:
1) gangue is modified:
Gangue composition (mass percent):SiO2:28~49%;Al2O3:21~42%;C:16~35%, other inevitable compositions):3~15%,
Gangue and sodium carbonate mix:In batch mixer after mix grinding, activate in the high temperature furnace that atmosphere is nitrogen protection,
Solid is put in sodium hydroxide solution after cooling, 60 DEG C of stirring in water bath are total to after heat, in placing into hydrochloric acid solution, in 70 DEG C of stirring in water bath, are cleaned with distilled water after cooling, and modified gangue powder is obtained;
2) the PFSC aqueous solution that mass percent is 11~20% is prepared, then according to PFSC aqueous solution:Modified gangue powder:PDDA liquid-solid ratio 30:5~8:2 proportions mixed solutions;
3) solution is transferred to into 12~16h of reaction in ultrasound-water heating kettle, efficient decarburizer is prepared after cooling.
4. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, it is characterized in that, in the preparation method step 1 of the efficient decarburizer) gangue it is modified in, gangue particle diameter is 100~180 mesh, and gangue and sodium carbonate are with (mass ratio) 3~6:2 mixing.
5. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, it is characterized in that, in the preparation method step 1 of the efficient decarburizer) gangue it is modified in, the temperature of high temperature furnace is 780 DEG C, solid is put into into water-bath in the sodium hydroxide solution of 4-6mol/L after cooling, hydrochloric acid solution is the hydrochloric acid solution of 2.5-3.5mol/L.
6. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, it is characterized in that, inclined-plate clarifying basin is entered after coking reverse osmosis concentrated water and decarburizer mixing, it is 5~15min in the time of staying of inclined-plate clarifying basin, then coking reverse osmosis concentrated water is by going out water pump discharge.
7. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, it is characterized in that, the coking reverse osmosis concentrated water is after whole technological process, water outlet total organic carbon is 4~11mg/L, colourity is 2~15NTU, effluent quality electrical conductivity is 17890~21300us/cm, and PH is 6~9.
8. as claimed in claim 1 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity method, characterized in that, the water electric conductivity of the coking reverse osmosis concentrated water is 17890~21300us/cm, PH is 5~10, total organic carbon is 32~55mg/L, and colourity is 67~145NTU.
9. in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity device, described device includes pipe-line mixer, it is characterised in that the pipe-line mixer is used for efficient decarburizer and coking reverse osmosis concentrated water and is sufficiently mixed,
The pipe-line mixer front sequence is provided with one-level intake pump 1,2, two grades of acid-alkali accommodation pond intake pump 5,
Acid-alkali accommodation pond 2 is connected with acid-base groove 3 and soda acid dosing pump 4,
Inclined-plate clarifying basin 10, discharge pipeline 11 are sequentially set with after the pipe-line mixer 9 and go out water pump 12, the pipe-line mixer 9 is connected with the medicine system 6 equipped with efficient decarburizer 7 and coagulant dosing pump 8.
10. as claimed in claim 9 in a kind of quick removal coking reverse osmosis concentrated water total organic carbon and colourity device, it is characterized in that, equipped with PH meters and robot control system(RCS) in acid-alkali accommodation pond, acid-base groove and soda acid dosing pump are controlled by controlling PH robot control system(RCS)s, determine the dosage of bronsted lowry acids and bases bronsted lowry.
CN201510718600.6A 2015-10-29 2015-10-29 Process and device for rapidly removing total organic carbon and chroma in coking reverse osmosis concentrated water Pending CN106630242A (en)

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