CN206232528U - A kind of COD high NH high3The emergency treatment device of N waste water - Google Patents

A kind of COD high NH high3The emergency treatment device of N waste water Download PDF

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Publication number
CN206232528U
CN206232528U CN201621258457.3U CN201621258457U CN206232528U CN 206232528 U CN206232528 U CN 206232528U CN 201621258457 U CN201621258457 U CN 201621258457U CN 206232528 U CN206232528 U CN 206232528U
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water
level
cod
waste water
grades
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谭金
李骎
王海棠
吴倩
甄胜利
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Beijing Geoenviron Engineering and Technology Inc
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Beijing Geoenviron Engineering and Technology Inc
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Abstract

The utility model discloses a kind of COD high NH high3The emergency treatment device of N waste water, the device includes the one-level Fenton oxidation tower, one-level neutralization reaction groove, first stage precipitation tank, two grades of Fenton oxidation towers, two grades of neutralization reaction grooves, second-level settling pond, rapid filter, primary deamination reaction device, depth deamination reaction device and the clear water reserviors that are sequentially connected with, and the depth deamination reaction device is also connected with activated carbon adsorber.The utility model can be processed salinity Organic Pollution surface water high, meet production and environmental requirement, and each device employed in the utility model is existing commercially available matured product, the purification requirement of water can not be met when being used alone, only water can be made to reach the requirement for reusing in combination and in a specific sequence after use, had the advantages that easy to operate, with low cost.

Description

A kind of COD high NH high3The emergency treatment device of-N waste water
Technical field
The utility model is on a kind of high-COD waste water processing unit.More specifically, it is on a kind of COD NH high high3-N The emergency treatment device of waste water.
Background technology
With the improvement of living standards, environmental consciousness enhancing, people to the migration in the environment of the organic matter of difficult degradation, become Change is increasingly paid close attention to, but the treatment of high-concentration hardly-degradable organic pollution, it is a difficult point of wastewater treatment.It is several typical High concentrated organic wastewater, such as coking chemical waste water, paper waste, pharmacy waste water, textile waste, dyeing waste water, oil/wastewater from chemical industry, Percolate etc., the effluent COD concentration that it mainly produces workshop section is generally higher.
And water quality is complicated, containing various poisonous and hazardous inorganic matters and organic matter, wherein containing be difficult to biodegradable naphthalene, The non-chlorinated such as phenanthrene aromatic compound, chlorinated aromatic race compound, phosphoric acid vinegar, phenolic compound and amino benzenes compounds etc..Rubbish COD, BOD in percolate5Concentration peak is compared up to thousands of to tens of thousands of with municipal sewage, and concentration is much higher.
There are following situations in some areas：Due to large-area precipitation, wastewater treatment are up to standard, waste water leaks reasons such as accident, The water bodys such as neighbouring reservoir are polluted.Therefore, it is necessary to emergency processing is carried out to the polluted-water, to avoid influenceing downstream Water quality, and hidden danger is come to periphery ecological environment and resident's diversion safety belt.
Utility model content
The purpose of this utility model is to provide a kind of COD NH high high3The emergency treatment device of-N waste water, to reach discharge It is required that.
The utility model provides a kind of COD NH high high3The emergency treatment device of-N waste water, including the one-level being sequentially connected with Fenton oxidation tower, one-level neutralization reaction groove, first stage precipitation tank, two grades of Fenton oxidation towers, two grades of neutralization reaction grooves, two grades sink Shallow lake pond, rapid filter, primary deamination reaction device, depth deamination reaction device and clear water reserviors, the depth deamination reaction device is also Connection activated carbon adsorber.
Also include the sludge treatment equipment of the connection first stage precipitation tank and second-level settling pond, and sludge treatment equipment goes out Water end (W.E.) connects the one-level Fenton oxidation tower.
Also include the backwash pump pipeline system for cleaning active charcoal adsorption tower；Also include the institute being connected with clear water reserviors respectively State emergent accident pond.
Also include COD high NH high3- N waste water is taken out to the water fetching device of one-level Fenton oxidation tower.
The utility model has the advantage that：
The COD a kind of high NH high provided using the utility model3The emergency treatment device of-N waste water, can have to salinity high Machine thing polluted surface water is processed, and is met each device employed in production and environmental requirement, and the utility model and is Existing commercially available matured product, the purification requirement of water can not be met when being used alone, only in combination and in a specific sequence Water can be made to reach the requirement for reusing after use, with easy to operate, with low cost advantage.
Brief description of the drawings
The COD high NH high that Fig. 1 is provided for the utility model3The structural representation of the emergency treatment device of-N waste water；
The COD high NH high that Fig. 2 is provided for the utility model3The process chart of the emergency treatment device of-N waste water.
Specific embodiment
The specific embodiment in the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, the utility model provides a kind of COD NH high high3The emergency treatment device of-N waste water, includes water intaking In device 1, one-level Fenton oxidation tower 2, one-level neutralization reaction groove 3,4, two grades of first stage precipitation tank, 5, two grades of Fenton oxidation tower With reactive tank 6, second-level settling pond 7, rapid filter 8, primary deamination reaction device 9, depth deamination reaction device 10, charcoal absorption Tower 11, clear water reserviors 12, sludge treatment equipment 13 and emergent accident pond 14.One-level Fenton oxidation tower 2, one-level neutralization reaction groove 3rd, 4, two grades of first stage precipitation tank, 5, two grades of Fenton oxidation tower neutralization reaction groove 6, second-level settling pond 7, rapid filter 8, primary deamination Reaction unit 9, depth deamination reaction device 10 and clear water reserviors 12, the depth deamination reaction device 10 are also connected with charcoal absorption Tower 11.The first stage precipitation tank 4 and second-level settling pond 7 are also connected with sludge treatment equipment 13.The emergent accident pond 14 respectively with Water fetching device 1 is connected with clear water reserviors 12.Activated carbon adsorber 11 also connects clear water reserviors 12.
Water fetching device 1 is directly fetched water by floating drum pump from polluted-water, and water-filling matter runoff investigation is carried out in regulating reservoir With the stabilization of pH value, there is no actual conditions to require, it is only necessary to meet stabilizing water quality.In the delivery port of regulating reservoir reaction unit Place is provided with raw water elevator pump A1, so that the water that regulating reservoir reaction unit is exported is fed directly into one-level Fenton oxidation tower 2.
One-level Fenton oxidation tower 2 connects the H of promising its dosing2O2Chemicals dosing plant B2, sulfuric acid chemicals dosing plant and FeSO4 Chemicals dosing plant.One-level Fenton oxidation tower 2 is additionally provided with two advanced oxidation reflux pumps of connection, and advanced oxidation reflux pump is connected respectively The recycling effluent mouthful at the top of one-level Fenton oxidation tower 2, the current water inlet of tower bottom promote medicament and give up to ensure interior circulation The uniform mixing of water, improves oxidation effectiveness.The addition of sulfuric acid can adjust the pH value of waste water, reach oxidation reaction optimal conditions. FeSO4H can be promoted2O2Decomposition, generate hydroxyl radical free radical.The oxidizing potential of hydroxyl radical free radical reaches 2.8V, in being nature The hardening agent of fluorine is only second to, efficient oxidation removal can be carried out to difficult biochemical organic matter in sewage, so as to reach reduction sewage The purpose of COD and colourity.And hydroxyl radical free radical will not produce secondary pollution, meet the requirement of environmental protection.By Fenton oxidation tower Treatment after, COD total removal rate >=65% in sewage.
The water outlet of one-level Fenton oxidation tower 2 enters one-level neutralization reaction groove 3, and the connection of one-level neutralization reaction groove 3 NaOH adds Medicine device, makes waste water pH be adjusted in one-level neutralization reaction groove 3 between 8 to 9.One-level neutralization reaction groove 3 is provided with flocculation aid PAM Chemicals dosing plant B5.Fe in the water outlet of one-level Fenton oxidation tower 23+Ion reacts generation Fe (OH) under weakly alkaline environment3Precipitation. The remaining H of simultaneous reactions2O2Generation oxygen is easily decomposed under alkaline environment, it is possible to reduce the content of hydrogen peroxide in water outlet.Help solidifying Agent polyacrylamide（PAM）Macromolecular chain can be made mutually to twine crosslinking with the suspended particles in absorption effluent, be formed and built bridge, so that Flocculent structure increase is easy to clarified separation, and then can more effectively remove the Fe (OH) in waste water3Precipitation and other pollutions Thing.
The part water outlet of one-level neutralization reaction groove 3 carries out mud-water separation reaction into first stage precipitation tank 4, and then sludge passes through Sludge lifting pump enters sludge treatment equipment 13（Between sludge dewatering）.In sludge treatment equipment 13, sludge is separated into traveling The treatment of one step, and its effluent recycling enters one-level neutralization reaction groove 3.The water outlet of first stage precipitation tank 4 enters two grades of Fenton oxidations Tower 5.
Other part water outlet in one-level neutralization reaction groove 3 is back to one-level Fenton oxidation tower 2 by external reflux pump, with Raw water carries out advanced oxidation reaction after being sufficiently mixed, it is ensured that the condition of water quality needed for advanced oxidation.
Two grades of Fenton oxidation towers 5 are provided with H2O2Chemicals dosing plant, sulfuric acid chemicals dosing plant and FeSO4Chemicals dosing plant.Two grades Fenton oxidation tower 5 is additionally provided with two advanced oxidation reflux pumps, and two advanced oxidation reflux pumps are connected at the top of oxidizing tower respectively Recycling effluent mouthful, the current water inlet of tower bottom, to ensure that interior circulation ensures interior circulation, promote medicament and the uniform of waste water to mix Close, improve oxidation effectiveness.The addition of sulfuric acid can adjust pH value of waste water, reach the optimal conditions of flco generation.FeSO4Can promote Enter H2O2Decomposition, generate hydroxyl radical free radical.The oxidizing potential of hydroxyl radical free radical reaches 2.8V, is to be only second to fluorine in nature Hardening agent, can carry out efficient oxidation removal to organic matter difficult biochemical in sewage, and COD of sewage and colourity are reduced so as to reach Purpose.And hydroxyl radical free radical will not produce secondary pollution, meet the requirement of environmental protection.By two grades for the treatment of of Fenton oxidation tower 5 Afterwards, COD total removal rate >=60% in sewage.
The water outlet of two grades of Fenton oxidation towers 5 adjusts pH ≈ 9.00 by NaOH chemicals dosing plants in two grades of neutralization reaction grooves 6 （PH can be between 8-10）.Two grades of neutralization reaction grooves 6 are provided with flocculation aid chemicals dosing plant.In the water outlet of two grades of Fenton oxidation towers 5 Fe3+Ion reacts generation Fe (OH) under weakly alkaline environment3Precipitation.The remaining H of simultaneous reactions2O2Under alkaline environment easily Decompose generation oxygen, it is possible to reduce the content of hydrogen peroxide in water outlet.Flocculation aid polyacrylamide（PAM）Can be with absorption effluent Suspended particles, make macromolecular chain mutually twine crosslinking, are formed and built bridge, so that flocculent structure increase is easy to clarified separation, and then can be with More effectively remove the Fe (OH) in waste water3Precipitation and other pollutants.
Two grades of water parts of neutralization reaction groove 6, to two grades of Fenton oxidation towers 5, are sufficiently mixed by exteenal reflux with raw water After carry out advanced oxidation reaction, it is ensured that the condition of water quality needed for advanced oxidation.Two grades of another part water outlets of neutralization reaction groove 6 enter Second-level settling pond 7 carries out mud-water separation, and sludge enters sludge treatment equipment 13, and the water outlet of second-level settling pond 7 enters rapid filter 8, The water outlet of rapid filter 8 sequentially enters primary deamination reaction device and depth ammonia removal device, the water outlet of depth deamination reaction device Into clear water reserviors 12.
When the water outlet of depth deamination reaction device is not up to standard, in addition it is also necessary to be used to be met an urgent need using activated carbon adsorber 11, Will depth deamination reaction device water outlet enter the further Adsorption water of activated carbon adsorber 11 in organic matter, reduce COD and colourity.
Water in clear water reserviors 12 is water up to standard, and the pool inner water is transported to sewage treatment plant by car, or enters town sewer pipe Net, does subsequent treatment.
The sludge dehydration device 13 set in the utility model between sludge dewatering, due to sludge disposal technology more into It is ripe, it is prior art, no longer separately illustrate herein.
Also it is connected with water fetching device 1 and clear water reserviors 12 including emergent accident pond 14 in the utility model, for accident emergency, Broken down for treatment facility or treatment water outlet situation not up to standard carry out interim storage to waste water, or ultrahigh concentration sewage Temporarily storage.
The utility model provides a kind of COD NH high high3The emergency handling process of-N waste water, as shown in Fig. 2 comprising following step Suddenly：
1）COD NH high high3- N waste water is from polluted-water（Such as reservoir）After middle extraction, water quality and quantity regulation is carried out to waste water With the stabilization of pH value；
2）The sewage of floating drum water fetching device discharge enters one-level Fenton oxidation tower by elevator pump, and is added by measuring pump Enter required chemical agent, adjust pH value and carry out Fenton oxidation treatment；
3）Enter one-level neutralization reaction groove after sewage is oxidation-treated, pH value to weak base is adjusted in one-level neutralization reaction groove Property simultaneously adds PAM flocculation aids；
4）One-level neutralization reaction groove foul water fraction is back to one-level Fenton oxidation tower, and remainder enters first stage precipitation tank After carrying out mud-water separation after precipitation, sewage enters two grades of Fenton oxidation towers, and sludge enters sludge treating system；
5）Two grades of Fenton oxidation towers add required chemical agent by measuring pump, and adjusting pH value simultaneously carries out Fenton oxygen Change is processed；Water outlet enters two grades of neutralization reaction grooves, adjusts pH value to alkalescent in two grades of neutralization reaction grooves and to add PAM to help solidifying Agent；
6）Two grades of water sections of neutralization reaction groove are back to two grades of Fenton oxidation towers by external reflux pump, to COD's high Raw water carries out mixed diluting, it is ensured that COD is in stabilization and is thoroughly mixed state in oxidizing tower；
7）After two grades of neutralization reaction groove remainder sewage enter second-level settling pond precipitate and separate, filtered out into rapid filter Remaining particulate pollutant in water, sludge enters sludge treating system；
8）Rapid filter enters primary deamination reaction device after filtering out remaining particulate pollutant in water, in removal waste water NH3- N, it is ensured that water outlet NH3- N is up to standard.The water outlet of primary deamination reaction device enters the depth further denitrogenation of deamination reaction device, and Removal part chlorine residue, water outlet enters clear water reserviors；
9）When depth deamination reaction device water outlet is not up to effluent quality requirement, answered using activated carbon adsorber Anxious, the organic matter in further Adsorption water reduces COD and colourity；
10）Clear water reserviors are kept in sewage, and the pool inner water is transported to sewage treatment plant and does subsequent treatment by car.
11）Emergent accident pond accident emergency, breaks down for treatment facility or treatment water outlet situation not up to standard is to useless Water carries out interim storage, or the sewage of ultrahigh concentration is temporarily stored.
In order to be further ensured that the normal operation of each device and ensure the water quality of output, as shown in Fig. 2 in the utility model More specifically technical process is as follows：
1）COD NH high high3- N waste water is from polluted-water（Such as reservoir）After middle extraction, floating drum water fetching device 1 is directly entered, By the regulation of 0.5-2.0h, make regulating reservoir water outlet COD ≈ 3000mg/L, pH=7~8, regulating reservoir water outlet is lifted via raw water Pump A1 is input into the one-level Fenton oxidation device 2.
2）H is provided with the return line of one-level Fenton oxidation tower 22O2Chemicals dosing plant B2, sulfuric acid chemicals dosing plant and FeSO4Chemicals dosing plant.Medicament and sewage can be allowed sufficiently to be mixed by the internal reflux of one-level Fenton oxidation tower 2. By adding sulfuric acid, regulation wastewater pH ≈ 3.00, it is ensured that the suitable condition of Fenton oxidation.After Fenton oxidation is processed, The COD total removal rates of water outlet between 50-85%, water outlet COD≤700mg/L.
3）The water outlet gravity flow of one-level Fenton oxidation tower 2 enters one-level neutralization reaction groove 3, and one-level neutralization reaction groove 3 is configured There are NaOH chemicals dosing plant B1, the pH ≈ 9.00 of water body in one-level neutralization reaction groove 3 are conducive to the water outlet of one-level Fenton oxidation tower 2 In Fe3+Ion reacts generation Fe (OH) under alkaline environment3Precipitation, while being also beneficial to excessive H2O2Under alkaline environment Decompose.One-level neutralization reaction groove 3 is also configured with PAM chemicals dosing plants, flocculation aid polyacrylamide（PAM）Can be with absorption effluent Suspended particles, make macromolecular chain mutually twine crosslinking, are formed and built bridge, so that flocculent structure increase is easy to clarified separation, and then can be with More effectively remove the Fe (OH) in waste water3Precipitation and other pollutants.The addition of flocculation aid is to the colloid in sewage and admittedly Body particle suspensions serve extraordinary removal effect.One-level Fenton oxidation tower 2 is additionally provided with two advanced oxidation reflux pumps.
4）After the sewage of one-level neutralization reaction groove 3 carries out mud-water separation into sedimentation basin precipitation, sewage enters two grades of Fenton Oxidizing tower 5, sludge enters sludge treating system.
5）The water outlet of one-level neutralization reaction groove 3 is reacted into first stage precipitation tank 4, is then entered by sludge lifting pump Sludge treatment equipment 13.In between sludge dewatering, sludge is separated to be further processed, and water outlet enters leading portion processing system.
Water section in one-level neutralization reaction groove 3 is back to one-level Fenton oxidation tower 2 by external reflux pump, is filled with raw water Advanced oxidation reaction is carried out after dividing mixing, it is ensured that the condition of water quality needed for advanced oxidation.The remaining water outlet of one-level neutralization reaction groove 3 is entered Enter first stage precipitation tank 4.
Sewage carries out mud-water separation in first stage precipitation tank 4, and sludge enters sludge treatment equipment 13, the water outlet of first stage precipitation tank 4 Into two grades of Fenton oxidation towers 5.
6）Water body COD≤700mg/L in one-level neutralization reaction groove 3,90% is back to one-level Fenton by external reflux pump Oxidizing tower 2, the raw water to the mg/L of COD ≈ 3000 carries out mixed diluting, it is ensured that sewage is in stabilization and is thoroughly mixed in oxidizing tower State, the water of intermediate pool residue 10% is water outlet, and its amount is intake equal to raw water.
7）Two grades of Fenton oxidation towers 5 are provided with H2O2Chemicals dosing plant B5, sulfuric acid chemicals dosing plant B6 and FeSO4Dosing is filled Put.Two grades of Fenton oxidation towers 5 are additionally provided with advanced oxidation reflux pump A6, A7, it is ensured that interior circulation, promote the uniform of medicament and waste water Mixing, improves oxidation effectiveness.The addition of sulfuric acid can adjust pH value of waste water, reach the optimal conditions of flco generation.FeSO4Can be with Promote H2O2Decomposition, generate hydroxyl radical free radical.The oxidizing potential of hydroxyl radical free radical reaches 2.8V, is to be only second to fluorine in nature Hardening agent, efficient oxidation removal can be carried out to organic matter difficult biochemical in sewage, reduce COD of sewage and colourity so as to reach Purpose.And hydroxyl radical free radical will not produce secondary pollution, meet the requirement of environmental protection.By after the treatment of Fenton oxidation tower, COD total removal rate >=60% in sewage.
The water outlet of two grades of Fenton oxidation towers 5 adjusts pH ≈ by NaOH chemicals dosing plants in two grades of neutralization reaction grooves 6 9.00.Two grades of neutralization reaction grooves 6 are provided with PAM chemicals dosing plants.Fe in the water outlet of two grades of Fenton oxidation towers 53+Ion is in alkalescent Generation Fe (OH) is reacted under environment3Precipitation.The remaining H of simultaneous reactions2O2Generation oxygen is easily decomposed under alkaline environment, can be with Reduce the content of hydrogen peroxide in water outlet.Flocculation aid polyacrylamide（PAM）Macromolecule can be made with the suspended particles in absorption effluent Chain mutually twines crosslinking, is formed and built bridge, so that flocculent structure increase is easy to clarified separation, and then can more effectively remove waste water Fe (OH)3Precipitation and other pollutants.
8）Water section in two grades of neutralization reaction grooves 6 is fully mixed by exteenal reflux to two grades of Fenton oxidation towers 5 with raw water Advanced oxidation reaction is carried out after conjunction, it is ensured that the condition of water quality needed for advanced oxidation.The water outlet of two grades of neutralization reaction grooves 6 enters two grades and sinks Shallow lake pond 7.
9）Sewage carries out mud-water separation in second-level settling pond 7, and sludge enters sludge treatment equipment 13, and second-level settling pond 7 goes out Water enters clear water reserviors 12.
10）Activated-carbon device 11 is met an urgent need, the organic matter in further Adsorption water, reduces COD and colourity.
11）Water in clear water reserviors 12 is water up to standard, and the pool inner water is transported to sewage treatment plant by car, or enters town sewer Pipe network, does subsequent treatment.
COD NH high high in the utility model3- N waste water refers to COD contents >=1000mg/L, NH3- N content >=100mg/L's Contaminant water.The effluent index for being finally reached emission request reaches《Sewage enters town sewer water standard》（GB/T 31962- 2015）Grade III Standard.

Claims (4)

1. a kind of COD high NH high3The emergency treatment device of-N waste water, it is characterised in that including the one-level Fenton oxygen being sequentially connected with Change tower, one-level neutralization reaction groove, first stage precipitation tank, two grades of Fenton oxidation towers, two grades of neutralization reaction grooves, second-level settling pond, fast Filter tank, primary deamination reaction device, depth deamination reaction device and clear water reserviors, the depth deamination reaction device are also connected with activity Charcoal adsorption tower.
2. COD high NH high according to claim 13The emergency treatment device of-N waste water, it is characterised in that also including connection The sludge treatment equipment of the first stage precipitation tank and second-level settling pond, and the water side of sludge treatment equipment connects the one-level Fenton oxidation tower.
3. COD high NH high according to claim 13The emergency treatment device of-N waste water, it is characterised in that also including being used for The backwash pump pipeline system of cleaning active charcoal adsorption tower；Also include the emergent accident pond being connected with clear water reserviors respectively.
4. COD high NH high according to claim 13The emergency treatment device of-N waste water, it is characterised in that also including COD high NH high3- N waste water is taken out to the water fetching device of one-level Fenton oxidation tower.
CN201621258457.3U 2016-11-23 2016-11-23 A kind of COD high NH high3The emergency treatment device of N waste water Active CN206232528U (en)

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CN201621258457.3U CN206232528U (en) 2016-11-23 2016-11-23 A kind of COD high NH high3The emergency treatment device of N waste water

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Application Number Priority Date Filing Date Title
CN201621258457.3U CN206232528U (en) 2016-11-23 2016-11-23 A kind of COD high NH high3The emergency treatment device of N waste water

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