CN105481107A - Hydrophilic biological carrier for wastewater treatment - Google Patents
Hydrophilic biological carrier for wastewater treatment Download PDFInfo
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- CN105481107A CN105481107A CN201610052619.6A CN201610052619A CN105481107A CN 105481107 A CN105481107 A CN 105481107A CN 201610052619 A CN201610052619 A CN 201610052619A CN 105481107 A CN105481107 A CN 105481107A
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- concentric ring
- carrier
- wastewater treatment
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
-
- 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
-
- 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
- C02F3/109—Characterized by the shape
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a hydrophilic biological carrier for wastewater treatment. The hydrophilic biological carrier comprises a hollow stub pipe, a first concentric ring and a second concentric ring, wherein the first concentric ring and the second concentric ring are sequentially arranged on the outer side of the hollow stub pipe in a concentric mode. The hydrophilic biological carrier is prepared from, by weight, 65-75 parts of high density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 0.2-0.6 part of dicumyl peroxide, 1.5-3 parts of gelatin, 1-2 parts of chitin and 0.5-2 parts of magnetic powder. The density of modified MBBR suspended biological stuffing is 0.96-0.98 g/cm3. The hydrophilic biological carrier is high in biofilm culturing speed, not prone to disengagement, high in treatment efficiency, and suitable for treatment of low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic wastewater. The biological stuffing has extremely high hydrophilia and biocompatibility and has high adsorption strength on a biological film.
Description
Technical field
The present invention relates to a kind of hydrophilic bio-carrier for wastewater treatment, belong to the sewage disposal in environmental engineering subject
Technical field.
Background technology
Along with the development in city, continuing to bring out of emerging industry, accelerates the deterioration of environmental pollution.Particularly country strengthens industrial pollution management, and improve sewage drainage standard, existing treatment technology has been difficult to the requirement meeting new standard.Therefore the water treatment field of China is also in the development need according to overall situation, accelerates the R and D of new technology, to adapt to increasingly serious environmental requirement.In recent years, use technology of biological membrane to solve sewage in sewage disposal and to upgrade requirement up to standard, to alleviate the water treatment pressure of enterprise and sewage to the pollution of people's living environment.In biomembrance process, filler is that microorganism is rely the place perched, and its performance directly affects treatment effect and investment.At present, domestic conventional filler is the fixed fillers such as honeycomb filler, soft-filler, semi soft packing and compounded mix, but these fillers often run into blocking, conglomeration in using, the problem such as harden, and have impact on biological treatment effect.And above-mentioned filler all needs to be arranged on auxiliary stand, cause the inconveniences such as filler installation, replacing.
The filler product of prior art also exists certain problem in actual applications, because specific surface area is little, hydrophilicity and bioaffinity poor, cause Shortcomings in the tightness of biofilm speed, biofilm amount and film and filler; Secondly, because pollution load is lower, microorganism growth is restricted, and the speed of growth is slow, also causes being not easy to bio-film colonization.
Summary of the invention
The object of the invention is to provide a kind of hydrophilic bio-carrier for wastewater treatment, this hydrophilic bio-carrier biofilm speed is fast, difficult drop-off, processing efficiency is high, be applicable to the process of low-concentration organic and ammonia nitrogen in sewage, low-concentration organic waste water, biologic packing material of the present invention has extremely strong wetting ability and bioaffinity, and filler itself has very strong adsorption strength to microbial film, be conducive to retaining and accumulation of biomass on filling carrier, therefore can adapt to the wastewater treatment under low consistency conditions preferably.
For achieving the above object, the technical solution used in the present invention is: a kind of hydrophilic bio-carrier for wastewater treatment, described hydrophilic bio-carrier comprises hollow short pipe, is arranged at ring, the second concentric ring with one heart of first outside hollow short pipe with one heart successively, described hollow short pipe, between the first concentric ring and the second concentric ring by connect muscle connect, be positioned at the outermost second concentric loop surface indentation;
Described modification MBBR suspended biological filler is made up of the component of following weight part:
High density polyethylene(HDPE) 65 ~ 75 parts,
White lime 5 ~ 15 parts,
Tao Shi Powdered Activated Carbon 5 ~ 20 parts,
Light calcium carbonate 6 ~ 10 parts,
Maleic anhydride 3 ~ 5 parts,
Dicumyl peroxide 0.2 ~ 0.6 part,
1.5 ~ 3 parts, gelatin,
Chitin 1 ~ 2 part,
Magnetic 0.5 ~ 2 part;
The density of described modification MBBR suspended biological filler is 0.96 ~ 0.98g/cm
3.
The technical scheme improved further in technique scheme is as follows:
As preferably, described magnetic is at least one in Z 250 magnetic, Mn-Zn ferrite and nickel-zinc ferrite.
As preferably, described white lime mixes according to 1:1.2:0.9 weight part with Tao Shi Powdered Activated Carbon and light calcium carbonate.
As preferably, the diameter of described hollow short pipe and aspect ratio are 10:3 ~ 6.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, the present invention is used for the hydrophilic bio-carrier of wastewater treatment, its biofilm speed is fast, difficult drop-off, processing efficiency is high, be applicable to the process of low-concentration organic and ammonia nitrogen in sewage, low-concentration organic waste water, biologic packing material of the present invention has extremely strong wetting ability and bioaffinity, and filler itself has very strong adsorption strength to microbial film, be conducive to retaining and accumulation of biomass on filling carrier, its ammonia nitrogen removal frank more than 78%, therefore can adapt to the wastewater treatment under low consistency conditions more than 92%, COD clearance preferably.
2, the present invention is used for the hydrophilic bio-carrier of wastewater treatment, it adds dicumyl peroxide 0.2 ~ 0.6 part, 1.5 ~ 3 parts, gelatin and magnetic 0.5 ~ 2 part further in high density polyethylene(HDPE) 65 ~ 75 parts, light calcium carbonate 6 ~ 10 parts, maleic anhydride 3 ~ 5 parts, both being conducive to packing belt has comparatively ferromagnetism to form magnetization effect, improve Pollutants in Wastewater conversion rate and efficiency, produce adsorptive power, increase the adsorptive capacity of filling surface; Simultaneously, dicumyl peroxide 0.2 ~ 0.6 part, 1.5 ~ 3 parts, gelatin can improve microbic activity, in water, microorganism is after magnetization, the microorganism adapting to survive has larger propagation and metabolic capacity, make organic pollutant under the effect of low-intensity magnetic field, gather through magnetic by effects such as magnetic force key, magnetic force, Lorentz force and mangneto cavity effects, adsorb, be enriched to magnetic biological filling material surface; Oxygen is paramagnetic substance, can be adsorbed near biologic packing material under the action of a magnetic field during aeration, increases the oxygen concn of filling surface, and promote the breeding of aerobe, low-intensity magnetic field also has the activity of inducing microbial and the effect of enzymic activity in addition; Again, it adopts 1.5 ~ 3 parts, gelatin and chitin 1 ~ 2 part of collocation to make bio-carrier, shortens the biofilm cycle, and strengthens microbial film adsorption strength, difficult drop-off.
3, the present invention is used for the hydrophilic bio-carrier of wastewater treatment, Tao Shi Powdered Activated Carbon 5 ~ 20 parts is added further in filler component, filler is made to have excellent adsorptive power, biomass cells and Adsorption of Organic solid surface can be made, cause the high oxidization rate of local space, break through the boundary of original concentration balance, extend microorganism and organic duration of contact, organism is degraded rapidly, thoroughly, and biological oxidation makes again activated carbon surface adsorptive power be restored.
4, the present invention is used for the hydrophilic bio-carrier of wastewater treatment, and in filler component, further white lime, improves the proportion of filler, allows floating filler proportion close to the proportion of water, greatly reduces power and stirs energy consumption, improve effect of filler.
Accompanying drawing explanation
Accompanying drawing 1 is for the present invention is for the hydrophilic bio-carrier structural representation of wastewater treatment.
In above accompanying drawing: 1, hollow short pipe; 2, the first concentric ring; 3, the second concentric ring; 4, muscle is connected.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1 ~ 4: a kind of hydrophilic bio-carrier for wastewater treatment, described hydrophilic bio-carrier comprises hollow short pipe 1, is arranged at the concentric ring 3 of the concentric ring of first outside hollow short pipe 12, second with one heart successively, connecting by connecting muscle 4 between the concentric ring of described hollow short pipe 1, first 2 and the second concentric ring 3, being positioned at the surperficial indentation of the outermost second concentric ring 3;
Described modification MBBR suspended biological filler is made up of the component of following weight part, as shown in table 1:
Table 1
The density of above-mentioned modification MBBR suspended biological filler is 0.96 ~ 0.98g/cm
3.
Above-mentioned white lime mixes according to 1:1.2:0.9 weight part with Tao Shi Powdered Activated Carbon and light calcium carbonate.
For a preparation method for above-mentioned modification MBBR suspended biological filler, comprise the following steps:
Step one, get maleic anhydride 3 ~ 5 parts, dicumyl peroxide 0.2 ~ 0.6 part, with 2.5 kilograms of acetone their are dissolved and make acetone soln, be placed in mixing machine;
Step 2, in mixing machine, add high density polyethylene(HDPE) 65 ~ 75 parts, white lime 5 ~ 15 parts, Tao Shi Powdered Activated Carbon 5 ~ 20 parts, light calcium carbonate 6 ~ 10 parts, 1.5 ~ 3 parts, gelatin, chitin 1 ~ 2 part and magnetic 0.5 ~ 2 part of Homogeneous phase mixing again, taking out to be placed in unlimited container allows acetone naturally volatilize, and makes it to become solid;
Step 3, above-mentioned solid materials to be dropped in twin screw extruder, melt extrude granulation;
Step 4, drop in 45 type single screw extrusion machines by the particle produced above, by extrusion die extrusion molding, the filler obtained is cylinder, establishes on axial cross reinforcing rib, cylinder outer wall and establish axially radial fin in it.
The diameter of above-mentioned hollow short pipe 1 and aspect ratio are embodiment 1 is 10:3, and embodiment 2 is 10:4, and embodiment 3 is 10:4.5, and embodiment 4 is 10:5.
Comparative example 1
Adopt the preparation method identical with embodiment 1, difference is: do not add white lime in product composition.Obtain floating stuffing product E, density is 0.92kg/L.
Comparative example 2
Adopt the preparation method identical with embodiment 1, difference is: do not add magnetic in product composition.Obtain floating stuffing product F, density is 0.958kg/L.
Comparative example 3
Adopt the preparation method identical with embodiment 1, difference is: do not add Tao Shi gac in product composition.Obtain floating stuffing product G, density is 0.98kg/L.
Get product that the embodiment 1 ~ 4 of identical amount and comparative example 1 ~ 3 obtain to be followed successively by A, B, C, D, E, F, G and to put into water and soak, the time is 5 hours, then takes out and leaves standstill 30min, measure water ratio.The water ratio of product A, B, C, D, E, F, G is respectively 17.5,17.8,17.6,17.8,11.8,12.5,13.2.Carry out survey calculation with contact angle instrument, the contact angle of product A, B, C, D, E, F, G is respectively 62 °, 61 °, 63 °, 62 °, 73 °, 75 °, 82 °.Result shows that the hydrophilicity of suspended biological filler prepared by the present invention is greatly improved.
Get product A that the embodiment of identical amount and comparative example obtain, B, C, D, E, F, G, be placed in 5 parallel bio-reactors and test.Mud and waste water are certain chemical engineering sewage treatment unit bio-chemical effluent, wherein test and carry out in MBBR, floating stuffing filling ratio is 40%, pH is 6.3-7.6, and temperature is 20-30 DEG C, C/N/P=100:5:1, under the condition of DO=1.5 ~ 3mg/L, COD is 200mg/L, and ammonia nitrogen is 50mg/L, hydraulic detention time 5h, result is as shown in table 1.
The test-results of table 2 filler A-E
| Filling kind | Biofilm time (d) | Water outlet COD(mg/L) | Water outlet ammonia nitrogen (mg/L) | COD clearance (%) | Ammonia nitrogen removal frank (%) |
| A | 12 | 41 | 3 | 79.5 | 94 |
| B | 13 | 38 | 2 | 81 | 96 |
| C | 13 | 40 | 3 | 80 | 94 |
| D | 11 | 39 | 2 | 82 | 95 |
| E | 16 | 68 | 15 | 66 | 70 |
| F | 19 | 86 | 19 | 57 | 62 |
| G | 20 | 78 | 16 | 61 | 68 |
From table 2, the hydrophilic bio-carrier biofilm time prepared by the inventive method obviously shortens, and the clearance of COD and ammonia nitrogen significantly improves.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. the hydrophilic bio-carrier for wastewater treatment, it is characterized in that: described hydrophilic bio-carrier comprises hollow short pipe (1), the first concentric ring (2) being arranged at hollow short pipe (1) outside successively with one heart, the second concentric ring (3), described hollow short pipe (1), between the first concentric ring (2) and the second concentric ring (3) by connect muscle (4) connect, be positioned at the surperficial indentation of the outermost second concentric ring (3);
Described modification MBBR suspended biological filler is made up of the component of following weight part:
High density polyethylene(HDPE) 65 ~ 75 parts,
White lime 5 ~ 15 parts,
Tao Shi Powdered Activated Carbon 5 ~ 20 parts,
Light calcium carbonate 6 ~ 10 parts,
Maleic anhydride 3 ~ 5 parts,
Dicumyl peroxide 0.2 ~ 0.6 part,
1.5 ~ 3 parts, gelatin,
Chitin 1 ~ 2 part,
Magnetic 0.5 ~ 2 part;
The density of described modification MBBR suspended biological filler is 0.96 ~ 0.98g/cm
3.
2. the hydrophilic bio-carrier for wastewater treatment according to claim 1, is characterized in that: described magnetic is at least one in Z 250 magnetic, Mn-Zn ferrite and nickel-zinc ferrite.
3. the hydrophilic bio-carrier for wastewater treatment according to claim 1, is characterized in that: described white lime mixes according to 1:1.2:0.9 weight part with Tao Shi Powdered Activated Carbon and light calcium carbonate.
4. the hydrophilic bio-carrier for wastewater treatment according to claim 1, is characterized in that: the diameter of described hollow short pipe (1) and aspect ratio are 10:3 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052619.6A CN105481107A (en) | 2016-01-27 | 2016-01-27 | Hydrophilic biological carrier for wastewater treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052619.6A CN105481107A (en) | 2016-01-27 | 2016-01-27 | Hydrophilic biological carrier for wastewater treatment |
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| CN105481107A true CN105481107A (en) | 2016-04-13 |
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| CN201610052619.6A Pending CN105481107A (en) | 2016-01-27 | 2016-01-27 | Hydrophilic biological carrier for wastewater treatment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344792A (en) * | 2016-05-04 | 2017-11-14 | 苏州科环环保科技有限公司 | Denitrogenation dephosphorizing complex biological filter |
| CN107344752A (en) * | 2016-05-04 | 2017-11-14 | 苏州科环环保科技有限公司 | Aerobic nitrification-anoxic denitrification biofilter denitrification system |
| CN110655179A (en) * | 2019-09-20 | 2020-01-07 | 西南科技大学 | Hydrophilic and bioaffinity suspended filler and preparation method and application thereof |
| CN111689574A (en) * | 2020-06-23 | 2020-09-22 | 南京乐透思环保科技有限公司 | Preparation of magnetic biological carrier material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1762851A (en) * | 2005-08-29 | 2006-04-26 | 江志伟 | Modified microbe stuffing and its preparation method |
| CN201046931Y (en) * | 2007-04-27 | 2008-04-16 | 宜兴市裕隆环保有限公司 | Suspending biological filler for water treatment |
-
2016
- 2016-01-27 CN CN201610052619.6A patent/CN105481107A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1762851A (en) * | 2005-08-29 | 2006-04-26 | 江志伟 | Modified microbe stuffing and its preparation method |
| CN201046931Y (en) * | 2007-04-27 | 2008-04-16 | 宜兴市裕隆环保有限公司 | Suspending biological filler for water treatment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344792A (en) * | 2016-05-04 | 2017-11-14 | 苏州科环环保科技有限公司 | Denitrogenation dephosphorizing complex biological filter |
| CN107344752A (en) * | 2016-05-04 | 2017-11-14 | 苏州科环环保科技有限公司 | Aerobic nitrification-anoxic denitrification biofilter denitrification system |
| CN110655179A (en) * | 2019-09-20 | 2020-01-07 | 西南科技大学 | Hydrophilic and bioaffinity suspended filler and preparation method and application thereof |
| CN111689574A (en) * | 2020-06-23 | 2020-09-22 | 南京乐透思环保科技有限公司 | Preparation of magnetic biological carrier material |
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Application publication date: 20160413 |