CN107673550A - Sewage-treatment plant for chemical industrial park - Google Patents
Sewage-treatment plant for chemical industrial park Download PDFInfo
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- CN107673550A CN107673550A CN201610616307.3A CN201610616307A CN107673550A CN 107673550 A CN107673550 A CN 107673550A CN 201610616307 A CN201610616307 A CN 201610616307A CN 107673550 A CN107673550 A CN 107673550A
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- pond
- catalysis oxidation
- oxidation pond
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- clear water
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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
-
- 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
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/06—Aerobic processes using submerged filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/104—Granular carriers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/108—Immobilising gels, polymers or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention discloses a kind of sewage-treatment plant for chemical industrial park,Including catalysis oxidation pond,Oxidation-stabilized pond,Biochemical BAF ponds afterwards,Clear water reserviors,Collecting-tank and filter,The catalysis oxidation pond,Oxidation-stabilized pond,Biochemical BAF ponds pass sequentially through transfer conduit with clear water reserviors and connected afterwards,The filter is connected to inside catalysis oxidation pond by inlet channel,One ozone generator is connected to inside catalysis oxidation pond by gas pipeline,The clear water reserviors are provided with inlet opening,Apopore and return port,The inlet opening of the clear water reserviors is connected with rear biochemical BAF ponds by transfer conduit,The apopore of the clear water reserviors is connected to a backwashing pump one end,This backwashing pump other end is connected to catalysis oxidation pond by reflux line,Afterwards inside biochemical BAF ponds,The catalysis oxidation pond is filled with ozone catalytic particle with fixed bed form,The collecting-tank is located at the catalysis oxidation pond side opposite with oxidation-stabilized pond.Ammonia nitrogen removal frank of the present invention, more than 78%, therefore can well adapt to the wastewater treatment under low consistency conditions more than 92%, COD clearances.
Description
Technical field
The present invention relates to a kind of sewage-treatment plant for chemical industrial park, belong to chemical engineering sewage technical field.
Background technology
Advanced treatment process currently used for the high saline sewage of chemical industry mainly has biological oxidation process and the advanced oxygen of physical chemistry
The class of change method two, for biological oxidation process using MBR techniques as representative, it is disadvantageous in that high saliferous deeply treating wastewater biodegradability pole
Difference(BOD<10), biochemical process effect is limited, is unable to reach the requirement of sewage discharge primary standard;Advanced oxidation processes include smelly
The direct catalytic oxidation of oxygen, Fenton reagent etc., it is disadvantageous in that, and treatment effect is unstable, operating cost is high, produces secondary dirt
Dye etc..
The content of the invention
It is an object of the present invention to provide a kind of sewage-treatment plant for chemical industrial park, this is used at the sewage of chemical industrial park
Reason device reaction speed is rapid, the hydroxyl radical free radical of a large amount of active non-selectivities of generation, the multiple pollutant in oxidized waste water,
The biodegradability of waste water is improved, operating cost is low, simple to operate, stable.
To reach above-mentioned purpose, the technical solution adopted by the present invention is:A kind of sewage-treatment plant for chemical industrial park,
Including catalysis oxidation pond, oxidation-stabilized pond, rear biochemical BAF ponds, clear water reserviors, collecting-tank and filter, the catalysis oxidation pond, oxygen
Change stabilization pond, rear biochemical BAF ponds pass sequentially through transfer conduit with clear water reserviors and connected, and the filter is connected to by inlet channel
Inside catalysis oxidation pond, an ozone generator is connected to inside catalysis oxidation pond by gas pipeline, and the clear water reserviors are provided with
Inlet opening, apopore and return port, the inlet opening of the clear water reserviors are connected with rear biochemical BAF ponds by transfer conduit, described clear
The apopore in pond is connected to a backwashing pump one end, this backwashing pump other end by reflux line be connected to catalysis oxidation pond, after
Inside biochemical BAF ponds, the catalysis oxidation pond is filled with ozone catalytic particle with fixed bed form, and the collecting-tank is positioned at catalysis
The oxidation pond side opposite with oxidation-stabilized pond;A dividing plate is vertically provided with the catalysis oxidation pond, so as to which oxygen will be catalyzed
Change pond and be divided into left and right chamber;
Several biologic packing materials are placed with biochemical BAF ponds after described, the biologic packing material is overlying on carrier surface by carrier and extension
Microbial film composition;
The carrier is made up of the component of following parts by weight:
60 ~ 70 parts of high density polyethylene (HDPE),
10 ~ 15 parts of acrylic resin,
6 ~ 8 parts of low density polyethylene (LDPE),
5 ~ 15 parts of white lime,
5 ~ 20 parts of Tao Shi Powdered Activated Carbons,
6 ~ 10 parts of precipitated calcium carbonate,
3 ~ 5 parts of maleic anhydride,
0.2 ~ 0.6 part of cumyl peroxide,
1.5 ~ 3 parts of gelatin,
1 ~ 2 part of chitin,
0.5 ~ 2 part of magnetic,
0.5 ~ 1 part of pentaerythritol stearate;
The density of the carrier is 0.96~0.98g/cm3。
Further improved technical scheme is as follows in above-mentioned technical proposal:
Preferably, the ozone generator is connected to the bottom in catalysis oxidation pond by gas pipeline.
Preferably, it is disposed with elevator pump and filter between the collecting-tank and catalysis oxidation pond.
Preferably, the magnetic is at least one of ferroso-ferric oxide magnetic, manganese-zinc ferrite and nickel-zinc ferrite.
Because above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art:
1st, the present invention is used for the sewage-treatment plant of chemical industrial park, and its catalytic ozonation technology compares other chemical oxidization methods,
Reaction rate is rapid, the hydroxyl radical free radical of a large amount of active non-selectivities of generation, the multiple pollutant in oxidized waste water, improves useless
The biodegradability of water, oxidation water outlet enter interior circulation BAF, under the effect of the filtering of biological bed, bioflocculation and biological adsorption, give up
The materials such as the organic matter contained in water are further adsorbed oxidation, and it is cheap and advanced that this method effectively combines biochemical treatment cost
The advantages of oxidation efficiency is efficient, improve the feasibility of RO concentrated water advanced treatings;Secondly, improve dirty to the high saliferous of petrochemical industry
The tolerance of water so that in the catalytic oxidation treatment process to saline sewage, catalyst ozone produces active hydroxyl
Free radical, the biodegradability of removal, decolouring, de- stench, degraded toxic pollutant and raising waste water to waste water COD are kept very
Good effect.
2nd, the present invention is used for the sewage-treatment plant of chemical industrial park, and its physical capacity of resistance to salt is strong, can be not more than in TDS
Normal use in 8000mg/L waste water, catalyst activity is high, and cost is low, and preparation method is simple, therefore for catalysis ozone
Extensive use tool of the change technology in saline sewage advanced treating is of great significance.
3rd, the present invention is used for the sewage-treatment plant of chemical industrial park, and carrier biofilm speed is fast in biochemical BAF ponds thereafter, is not easy
Come off, treatment effeciency is high, the processing of low-concentration organic and ammonia nitrogen suitable for sewage, and low-concentration organic waste water is of the invention
Biologic packing material has extremely strong hydrophily and bioaffinity, and filler has very strong adsorption strength to biomembrane in itself, has
Beneficial to the retention and accumulation of biomass on filling carrier, its ammonia nitrogen removal frank more than 92%, COD clearances more than 78%, therefore energy
Well adapt to the wastewater treatment under low consistency conditions.
4th, the present invention be used for chemical industrial park sewage-treatment plant, thereafter in biochemical BAF ponds carrier in high density polyethylene (HDPE)
60 ~ 70 parts, 10 ~ 15 parts of acrylic resin, 6 ~ 10 parts of precipitated calcium carbonate, further addition peroxidating two in 3 ~ 5 parts of maleic anhydride
0.5 ~ 2 part of 0.2 ~ 0.6 part of isopropylbenzene, 1.5 ~ 3 parts of gelatin and magnetic, not only improve filler and carry compared with ferromagnetism formation magnetization effect
Should, Pollutants in Wastewater conversion rate and efficiency are improved, produces absorption affinity, the adsorbance on increase filler surface;Meanwhile peroxidating
1.5 ~ 3 parts of 0.2 ~ 0.6 part of diisopropylbenzene (DIPB), gelatin activity that can improve microorganism, microorganism adapts to life after magnetization in water
Leaving the microorganism come has bigger propagation and metabolic capability so that organic pollution passes through magnetic in the presence of low-intensity magnetic field
The effect such as power key, magnetic force, Lorentz force and mangneto cavity effect gathers through magnetic, adsorbed, being enriched to magnetic biological filling material surface;Oxygen
It is paramagnet, can be adsorbed near biologic packing material during aeration, the oxygen concentration on increase filler surface, promote under magnetic fields
Enter the breeding of aerobe, low-intensity magnetic field also has the function that the activity of inducing microbial and enzymatic activity in addition;Again, it uses bright
1 ~ 2 part of collocation of 1.5 ~ 3 parts of glue and chitin uses so that bio-carrier, shortens the biofilm cycle, and it is strong to strengthen biomembrane absorption
Degree, it is difficult for drop-off.
5th, the present invention be used for chemical industrial park sewage-treatment plant, its be formulated in further using high density polyethylene (HDPE) 60 ~
Resin material based on 70 parts of 10 ~ 15 parts of acrylic resins of collocation, 6 ~ 8 parts of low density polyethylene (LDPE)s, adds 3 ~ 5 parts of maleic anhydride,
The contact angle of sewage and carrier is reduced, improves the hydrophily and impact resistance of carrier, makes microorganism be easier to be attached to load
On body, hydrophilic bio-carrier specific surface area is big, adsorptivity is extremely strong, the microbial film that can prevent carrier outer surface from adhering in water
Come off because being rubbed between carrier, it is short the time required to biofilm, improve waste water treatment efficiency;Secondly, 0.5 ~ 2 part of magnetic during it is formulated
With reference to 0.5 ~ 1 part of pentaerythritol stearate, be advantageous to improve the biofilm amount of carrier biofilm.
Brief description of the drawings
Accompanying drawing 1 is used for the sewage-treatment plant structural representation of chemical industrial park for the present invention;
Accompanying drawing 2 is the partial structural diagram of accompanying drawing 1.
In the figures above:1st, catalysis oxidation pond;2nd, oxidation-stabilized pond;3rd, rear biochemical BAF ponds;4th, clear water reserviors;41st, intake
Hole;42nd, apopore;5th, transfer conduit;6th, elevator pump;7th, inlet channel;8th, ozone generator;9th, gas pipeline;10th, return duct
Road;11st, backwashing pump;12nd, ozone catalytic particle;13rd, dividing plate;15th, collecting-tank;16th, filter.
Embodiment
With reference to embodiment, the invention will be further described:
Embodiment 1 ~ 4:A kind of sewage-treatment plant for chemical industrial park, including catalysis oxidation pond 1, oxidation-stabilized pond 2, rear life
Change BAF ponds 3, clear water reserviors 4, collecting-tank 15 and filter 16, the catalysis oxidation pond 1, oxidation-stabilized pond 2, rear biochemical BAF ponds 3
Transfer conduit 5 is passed sequentially through with clear water reserviors 4 to connect, the filter 16 is connected in catalysis oxidation pond 1 by inlet channel 7
Portion, an ozone generator 8 are connected to inside catalysis oxidation pond 1 by gas pipeline 9, the clear water reserviors 4 be provided with inlet opening 41,
Apopore 42, the inlet opening 41 of the clear water reserviors 4 are connected with rear biochemical BAF ponds 3 by transfer conduit 5, and the clear water reserviors 4 go out
Water hole 42 is connected to the one end of a backwashing pump 11, this other end of backwashing pump 11 by reflux line 10 be connected to catalysis oxidation pond 1, after
Inside biochemical BAF ponds 3, the catalysis oxidation pond 1 is filled with ozone catalytic particle 12, the collecting-tank 15 with fixed bed form
In the side that catalysis oxidation pond 1 is opposite with oxidation-stabilized pond 2;
Elevator pump 6 and filter 16 are disposed between this collecting-tank 15 and filtering ponds 16.
A dividing plate 13 is vertically provided with above-mentioned catalysis oxidation pond 1, so as to which catalysis oxidation pond is divided into left and right chamber.
Above-mentioned ozone generator 8 is connected to the bottom in catalysis oxidation pond by gas pipeline 9.
The present embodiment is used for the sewage-treatment plant of chemical industrial park, and specific implementation step is as follows:
(1), high saline sewage after pretreatment be lifted into filter through pump;
(2), filter water outlet gravity flow enter catalytic ozonation pond, while add ozone into catalytic ozonation pond, progress
Catalytic ozonation reacts;
(3), ozone catalytic oxidation unit water outlet gravity flow enter oxidation-stabilized pond;
(4), oxidation-stabilized pond water outlet gravity flow enter after biochemical BAF units, carry out biochemical reaction;
(5), rear biochemical BAF units water outlet gravity flow enter clear water reserviors, qualified discharge;
Wherein, step(1)Middle filter water outlet indicator of suspended solids control is within 20mg/L;
Step(2)In every liter of sewage ozone dosage 20mg, it is 80 ~ 120mgO3/L gas to add ozonized air concentration, ozone
The catalysis oxidation apparent residence time (HRT) is 1.0h, and catalyst exists as a fixed bed in catalytic ozonation pond.
Several biologic packing materials are placed with biochemical BAF ponds 3 after described, the biologic packing material is overlying on carrier by carrier and extension
The microbial film composition on surface;
The carrier is made up of the component of following parts by weight, as shown in table 1:
Table 1
The density of above-mentioned carrier is 0.96~0.98g/cm3。
Above-mentioned white lime is with Tao Shi Powdered Activated Carbons and precipitated calcium carbonate according to 1:1.2:0.9 parts by weight mix.
A kind of preparation method for above-mentioned carrier, comprise the following steps:
Step 1: taking 3 ~ 5 parts of maleic anhydride, 0.2 ~ 0.6 part of cumyl peroxide, they are dissolved with 2.5 kilograms of acetone and made
Into acetone soln, it is placed in mixer;
Step 2: 60 ~ 70 parts of high density polyethylene (HDPE), 10 ~ 15 parts of acrylic resin, low density polyethylene (LDPE) are added into mixer again
6 ~ 8 parts, 5 ~ 15 parts of white lime, 5 ~ 20 parts of Tao Shi Powdered Activated Carbons, 6 ~ 10 parts of precipitated calcium carbonate, 1.5 ~ 3 parts of gelatin, chitin 1 ~
2 parts, 0.5 ~ 2 part of magnetic, the uniformly mixing of 0.5 ~ 1 part of pentaerythritol stearate, be placed in after taking-up in unlimited container and allow acetone
Naturally volatilize, make solid;
Step 3: above-mentioned solid material is put into double screw extruder, melting extrusion is granulated;
Step 4: the particle produced above is put into 45 type single screw extrusion machines, by extrusion die extrusion forming, obtain
Filler is cylinder, and axial cross reinforcing rib is set in it, sets axially radial fin on cylinder outer wall.
For above-mentioned the problems of the prior art deficiency, the present invention proposes high treating effect, stable, operating cost
The high saline sewage deep treatment method of petrochemical industry that is low, not producing secondary pollution.It is biochemical after being combined using catalytic ozonation
BAF techniques, biological oxidation unit employ interior circulation BAF technologies, and catalytic ozonation technical matters is simple and convenient to operate, can
Accomplished the end in view according to influent quality situation by gas flowmeter flexibly changing ozone amount;Interior circulation BAF technologies can
Higher biomass and bioactivity are maintained in poor auxotype sewage and keeps biochemical ability.In order to ensure the two function is effective
Combination, in ozone catalytic oxidation unit front end, increase more medium filter, remove oil removal;And between two processing units
There is provided oxidation-stabilized pond, to ensure being properly completed and preventing remaining oxidizing agent after suppressing in biochemical unit for advanced oxidation processes
Microbial activity, reach the purpose having complementary functions.Operating cost is low, simple to operate, stable, and obtains efficient degradation and have
The purpose of organic pollutants, the high saline sewage advanced treating of petroleum chemical industry and qualified discharge under low cost can be achieved.
The present invention uses ozone catalytic particle, ozone catalytic is produced into hydroxyl radical free radical, while reduce hydroxyl radical free radical oxygen
Change the activation energy of reaction, make an organic matter part for difficult degradation in high saline sewage modified, become by macromolecular biorefractory organic
Into the easily biochemical organic matter of small molecule, a part directly mineralising removes, or direct oxidation is decomposed into H2O and CO2。
Pretreated high saline sewage is first entered into collecting-tank, is lifted into filter through pump, filter goes out aqueous suspension
Thing index is less than 20mg/L, it is therefore an objective to the suspension in high saline sewage is removed, so as to reduce the oxidation in catalytic ozonation pond
The dirt of load and ozone catalyst is blocked up;Filter water outlet gravity flow enters the catalytic ozonation for being filled with metal ion catalyst
Pond, while add 50mgO3The ozonized air of/L water, in the presence of catalyst, the ozone of high oxidative is changed into oxidisability
Stronger and selective non-oxidation hydroxyl radical free radical, while reduce the activation energy of hydroxyl radical free radical oxidation reaction, hydroxyl free
Base is modified by a remaining hardly degraded organic substance part in high saline sewage, and it is easy to become small molecule by macromolecular biorefractory organic
Biochemical organic matter, a part directly mineralising is decomposed, or direct oxidation is H2O and CO2;It is steady that ozone oxidation water outlet gravity flow enters oxidation
Determine pond, by the 0.5h residence times, make water stabilization and clear up excessive ozone naturally;After oxidation-stabilized pond water outlet gravity flow enters
Biochemical BAF units carry out biochemical treatment, so as to reach the advanced treating purpose of high saline sewage.
The result of the test of the carrier of table 2
Filling kind | Biofilm time (d) | Water outlet COD(mg/L) | Water outlet ammonia nitrogen (mg/L) | COD clearances(%) | Ammonia nitrogen removal frank(%) |
Embodiment 1 | 9 | 35 | 0.018 | 82.5 | 95 |
Embodiment 2 | 10 | 34 | 0.026 | 82 | 96 |
Embodiment 3 | 10 | 35 | 0.025 | 81.5 | 95 |
Embodiment 4 | 10 | 33 | 0.02 | 81 | 94 |
From table 2, the carrier biofilm time prepared by the inventive method substantially shortens, and the clearance of COD and ammonia nitrogen significantly improves.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all be included within the scope of the present invention.
Claims (4)
- A kind of 1. sewage-treatment plant for chemical industrial park, it is characterised in that:Including catalysis oxidation pond(1), oxidation-stabilized pond (2), rear biochemical BAF ponds(3), clear water reserviors(4), collecting-tank(15)And filter(16), the catalysis oxidation pond(1), oxidation it is steady Determine pond(2), rear biochemical BAF ponds(3)And clear water reserviors(4)Pass sequentially through transfer conduit(5)Connection, the filter(16)By entering Waterpipe(7)It is connected to catalysis oxidation pond(1)Inside, an ozone generator(8)Pass through gas pipeline(9)It is connected to catalysis oxidation Pond(1)Inside, the clear water reserviors(4)It is provided with inlet opening(41), apopore(42), the clear water reserviors(4)Inlet opening(41) With rear biochemical BAF ponds(3)Pass through transfer conduit(5)Connection, the clear water reserviors(4)Apopore(42)It is connected to a backwashing pump (11)One end, this backwashing pump(11)The other end passes through reflux line(10)It is connected to catalysis oxidation pond(1), rear biochemical BAF ponds(3) Inside, the catalysis oxidation pond(1)Ozone catalytic particle is filled with fixed bed form(12), the collecting-tank(15)Positioned at urging Change oxidation pond(1)With oxidation-stabilized pond(2)Opposite side;The catalysis oxidation pond(1)Inside vertically it is provided with a dividing plate (13), so as to which catalysis oxidation pond is divided into left and right chamber;Biochemical BAF ponds after described(3)Several biologic packing materials are inside placed with, the biologic packing material is overlying on carrier table by carrier and extension The microbial film composition in face;The carrier is made up of the component of following parts by weight:60 ~ 70 parts of high density polyethylene (HDPE),10 ~ 15 parts of acrylic resin,6 ~ 8 parts of low density polyethylene (LDPE),5 ~ 15 parts of white lime,5 ~ 20 parts of Tao Shi Powdered Activated Carbons,6 ~ 10 parts of precipitated calcium carbonate,3 ~ 5 parts of maleic anhydride,0.2 ~ 0.6 part of cumyl peroxide,1.5 ~ 3 parts of gelatin,1 ~ 2 part of chitin,0.5 ~ 2 part of magnetic,0.5 ~ 1 part of pentaerythritol stearate;The density of the carrier is 0.96~0.98g/cm3。
- 2. the sewage-treatment plant according to claim 1 for chemical industrial park, it is characterised in that:The ozone generator (8)Pass through gas pipeline(9)It is connected to the bottom in catalysis oxidation pond.
- 3. the sewage-treatment plant according to claim 1 for chemical industrial park, it is characterised in that:The collecting-tank(15) With catalysis oxidation pond(1)Between be disposed with elevator pump(6)And filter(16).
- 4. the sewage-treatment plant according to claim 1 for chemical industrial park, it is characterised in that:The magnetic is four oxygen Change at least one of three ferromagnetic, manganese-zinc ferrites and nickel-zinc ferrite.
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CN201610616307.3A CN107673550A (en) | 2016-08-01 | 2016-08-01 | Sewage-treatment plant for chemical industrial park |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN205045948U (en) * | 2015-08-19 | 2016-02-24 | 苏州科环环保科技有限公司 | Petrochemical is efficient handling of discharging equipment for sewage |
CN105692880A (en) * | 2016-01-27 | 2016-06-22 | 苏州科环环保科技有限公司 | Suspended biological stuffing for water treatment |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN205045948U (en) * | 2015-08-19 | 2016-02-24 | 苏州科环环保科技有限公司 | Petrochemical is efficient handling of discharging equipment for sewage |
CN105692880A (en) * | 2016-01-27 | 2016-06-22 | 苏州科环环保科技有限公司 | Suspended biological stuffing for water treatment |
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