CN111892241A - Industrial sewage purification method - Google Patents
Industrial sewage purification method Download PDFInfo
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- CN111892241A CN111892241A CN202010717845.8A CN202010717845A CN111892241A CN 111892241 A CN111892241 A CN 111892241A CN 202010717845 A CN202010717845 A CN 202010717845A CN 111892241 A CN111892241 A CN 111892241A
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- 239000010865 sewage Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000000746 purification Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000001179 sorption measurement Methods 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000012535 impurity Substances 0.000 claims abstract description 18
- 244000005700 microbiome Species 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000000889 atomisation Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 230000005494 condensation Effects 0.000 claims abstract description 4
- 238000000151 deposition Methods 0.000 claims abstract description 4
- 239000003595 mist Substances 0.000 claims abstract description 4
- 239000008213 purified water Substances 0.000 claims abstract description 4
- 230000000813 microbial effect Effects 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000010842 industrial wastewater Substances 0.000 claims description 10
- 241000186361 Actinobacteria <class> Species 0.000 claims description 7
- 241000235342 Saccharomycetes Species 0.000 claims description 6
- 241000228212 Aspergillus Species 0.000 claims description 3
- 241000235395 Mucor Species 0.000 claims description 3
- 241000228143 Penicillium Species 0.000 claims description 3
- 241000235527 Rhizopus Species 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000010802 sludge Substances 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 241000233866 Fungi Species 0.000 description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 241001446247 uncultured actinomycete Species 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- C02F3/347—Use of yeasts or fungi
Abstract
The invention discloses an industrial sewage purification method, which comprises the following steps: firstly, filtering sewage through a filter screen, and discharging the sewage into a water storage tank after filtering larger impurities in the sewage; secondly, atomizing the sewage by adopting an ultrasonic atomization mode, depositing impurities which are insoluble in water in the sewage at the bottom of a water storage tank, and allowing the impurities which are soluble in water to enter a condensation bin along with water mist and then flow into a regulating tank; thirdly, adding a regulator into the regulating tank to ensure that the pH value of the water body is within the range of 7.0-8.0, filtering the water body and introducing the water body into an adsorption tower; fourthly, carrying out adsorption reaction on the water body in an adsorption tower for about 5-8 minutes, and then discharging the purified water. According to the invention, impurities and water are separated by adopting an ultrasonic atomization mode, and impurities and sludge with larger particles can settle to the bottom of the water storage tank, so that large-particle impurities in water can be effectively removed, and favorable conditions are provided for next purification. The activated carbon cage and the microorganisms simultaneously adsorb heavy metals in the water body, thereby achieving the effect of double treatment.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an industrial sewage purification method.
Background
With the continuous progress of science and technology, the industrial development is also on the rise, the produced products make excellent contribution to the daily life of human beings, but the harm brought by industrial pollution is brought, for example, the paper making industry, the heavy metal smelting industry and the electroplating industry, the discharged wastewater contains a large amount of heavy metal ions, the heavy metal ions pollute water sources, the living of organisms are harmed, and diseases are caused by the fact that food enters human bodies sometimes, so that how to effectively purify industrial sewage at low cost is a problem to be solved urgently.
Most of the existing wastewater treatment methods adopt a chemical precipitation method, for example, in an industrial wastewater treatment method disclosed in the application number 201611034210.8, heavy metal ions in industrial wastewater are removed by the chemical precipitation method, but the method needs to put a large amount of chemical reagents into the water, and the purification is neither economical nor complete. Part of the methods also adopt a filter membrane filtration method, such as the following application numbers: the fan-blade type heavy metal wastewater purification and circulation filtering device disclosed in CN201810572988.7 filters heavy metal ions by using a filter membrane filtration method, which requires frequent replacement of the filter membrane, and is not economical. In addition, some microbial water treatment agents for heavy metal organic wastewater, such as the microbial water treatment agent disclosed in publication No. CN106007006B, generally adopt microbial agents to purify heavy metals, and are directly put into water to purify the heavy metals, so that the efficiency is low and the effect is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an industrial sewage purification method.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an industrial sewage purification method comprises the following steps:
firstly, filtering sewage through a filter screen, and discharging the sewage into a water storage tank after filtering larger impurities in the sewage;
secondly, atomizing the sewage by adopting an ultrasonic atomization mode, depositing impurities which are insoluble in water in the sewage at the bottom of a water storage tank, and allowing the impurities which are soluble in water to enter a condensation bin along with water mist and then flow into a regulating tank;
thirdly, adding a regulator into the regulating tank, stirring and mixing to ensure that the pH value of the water body is 7.0-8.0, filtering the water body and introducing the water body into an adsorption tower;
fourthly, carrying out adsorption reaction on the water body in an adsorption tower for about 5-8 minutes, and then discharging the purified water.
Further, be equipped with the active carbon cage in the adsorption tower, the inside vertically and horizontally staggered of active carbon cage is provided with the active carbon skeleton, and the inside microbial film that all hangs on surface of active carbon cage.
Further, the microorganisms attached to the microorganism biofilm are actinomycetes, moulds and yeasts, and the quantity ratio of the actinomycetes, the moulds and the yeasts is 5:4: 3.
Further, the moulds comprise aspergillus, mucor, rhizopus and penicillium, and the quantitative ratio is as follows: 1:1:1:1.
Further, the adsorption tower is pressurized to have an internal pressure of 1.5 to 1.8MPa for a duration of 1 to 1.5 minutes.
Further, the temperature inside the adsorption tower is controlled to be 30-35 degrees.
The invention has the beneficial effects that:
1. according to the invention, impurities and water are separated by adopting an ultrasonic atomization mode, and impurities and sludge with larger particles can settle to the bottom of the water storage tank, so that large-particle impurities in water can be effectively removed, and favorable conditions are provided for next purification.
2. The adsorption reaction adopts the activated carbon cage as an attachment point, a microbial film is hung on the activated carbon cage, the activated carbon cage and microorganisms simultaneously adsorb heavy metal in a water body, the dual-treatment effect is achieved, meanwhile, the heavy metal adsorbed in the activated carbon cage can be used as a nutrient source of the microorganisms, and the microorganisms rely on the microorganisms to live and purify the microorganisms.
3. The microorganism is mixed and cultured by actinomycetes, mould and saccharomycetes, and the actinomycetes are filamentous fungi, so that the mould and the saccharomycetes can be better adsorbed on a microbial film, the microorganism is prevented from flowing away along with water, and the stable exertion of the adsorption effect is ensured.
Drawings
FIG. 1 is a block diagram of a process for purifying industrial wastewater according to the present invention;
FIG. 2 is a flow chart of the industrial wastewater purification method of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-2, the industrial wastewater purification method provided by the present invention comprises the following steps:
the first step, pass through the filter screen with sewage and filter, discharge to the tank 1 after the great debris of filtering aquatic, great debris are some waste materials in the industrial production process generally, can retrieve and recycle, are favorable to practicing thrift the cost, the environmental protection.
And secondly, atomizing the sewage by adopting an ultrasonic atomization mode, depositing impurities insoluble in water in the sewage at the bottom of the water storage tank 1, and allowing the impurities soluble in water to enter a condensation bin along with water mist and then flow into a regulating tank.
Supersonic generator sets up in tank 1 middle part, and supersonic generator atomizes the water in with tank 1, and the fog condenses into the water droplet after getting into to condense in the storehouse 2, and silt and the large granule impurity of tank 1 bottom deposit can regularly carry out manual cleaning, purification.
And thirdly, adding a regulator into the regulating tank 3, stirring and mixing to ensure that the pH value of the water body is 7.0-8.0, filtering the water body, and introducing the filtered water body into the adsorption tower 4.
The regulator added into the regulating tank 3 is soda ash or sulfuric acid, and the soda ash or the sulfuric acid can be added to regulate the pH value of the water body so as to be suitable for the survival of microorganisms on one hand and can precipitate calcium ions, magnesium ions and copper ions in the water on the other hand.
Fourthly, the water body is subjected to adsorption reaction in the adsorption tower 4 for about 5 to 8 minutes, and then the purified water is discharged.
Be equipped with the active carbon cage in the adsorption tower 4, the active carbon cage is a polyhedron, stably fixes in the adsorption tower, and the inside vertically and horizontally staggered of active carbon cage is provided with the active carbon skeleton, and the active carbon skeleton increases adsorption area on the one hand, and on the other hand is used for hanging and establishes the microbial film, and the inside microbial film that is equipped with is all hung with the surface to the active carbon cage.
The microorganisms attached to the microorganism biofilm are actinomycetes, mould and microzyme, and the number ratio of the various microorganisms is 5:4: 3.
The actinomycete is filamentous in form, has stronger adsorbability compared with other fungi, can be stably adsorbed on a microbial film, but because the adsorbability of the fungi and the saccharomycetes is poor, particularly the saccharomycetes is granular in form and poorer in adsorbability, the actinomycete is easy to flow away with water in the water flowing process, the three types of strains are mixed and attached, the actinomycete plays a role in auxiliary fixation, and the adhesive force of the other two types of strains is enhanced.
The mould comprises aspergillus, mucor, rhizopus and penicillium, and the proportion is as follows: 1:1:1:1. The strain has excellent microbial adsorption capacity, and can effectively remove Cd, Pb, Ni and Zn in water. The yeast can remove more heavy metal ions, such as Cu, Co, Cs, Sr, U, Cd, Pb, Zn, Cr, Ni and the like, and particularly has the best adsorption effect on Pb, Zn, Cr and Ni.
And pressurizing the adsorption tower 4 in any adsorption time period to ensure that the internal pressure is 1.5-1.8MPa, the pressurizing time lasts for 1-1.5 minutes, and the pressurizing function is to ensure that the water body can be more fully contacted with the activated carbon cage to accelerate the adsorption process.
In the adsorption process, the temperature in the adsorption tower is controlled to be 30-35 degrees, and in the temperature range, the adsorption performance of the microorganisms is better and the adsorption speed is higher.
The activated carbon cage saturated in adsorption can be taken out of the adsorption tower 4 for desorption, and then put into the adsorption tower 4 again to exert the adsorption effect again.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. The industrial sewage purification method is characterized by comprising the following steps:
firstly, filtering sewage through a filter screen, and discharging the sewage into a water storage tank after filtering larger impurities in the sewage;
secondly, atomizing the sewage by adopting an ultrasonic atomization mode, depositing impurities which are insoluble in water in the sewage at the bottom of a water storage tank, and allowing the impurities which are soluble in water to enter a condensation bin along with water mist and then flow into a regulating tank;
thirdly, adding a regulator into the regulating tank, stirring and mixing to ensure that the pH value of the water body is 7.0-8.0, filtering the water body and introducing the water body into an adsorption tower;
fourthly, carrying out adsorption reaction on the water body in an adsorption tower for about 5-8 minutes, and then discharging the purified water.
2. The industrial wastewater purification method according to claim 1, characterized in that: be equipped with the active carbon cage in the adsorption tower, the inside vertically and horizontally staggered of active carbon cage is provided with the active carbon skeleton, and the inside microbial film that all hangs on active carbon cage and surface is equipped with.
3. The industrial wastewater purification method according to claim 2, characterized in that: the microorganisms attached to the microorganism biofilm are actinomycetes, mould and saccharomycetes, and the number ratio of the actinomycetes, the mould and the saccharomycetes is 5:4: 3.
4. The industrial wastewater purification method according to claim 3, characterized in that: the mould comprises aspergillus, mucor, rhizopus and penicillium, and the quantity ratio is as follows: 1:1:1:1.
5. The industrial wastewater purification method according to claim 1, characterized in that: pressurizing the adsorption tower to make its internal pressure be 1.5-1.8MPa, and the pressurizing duration be 1-1.5 min.
6. The industrial wastewater purification method according to claim 1, characterized in that: the temperature in the adsorption tower is controlled to be 30-35 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010717845.8A CN111892241A (en) | 2020-07-23 | 2020-07-23 | Industrial sewage purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010717845.8A CN111892241A (en) | 2020-07-23 | 2020-07-23 | Industrial sewage purification method |
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| CN111892241A true CN111892241A (en) | 2020-11-06 |
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| CN202010717845.8A Pending CN111892241A (en) | 2020-07-23 | 2020-07-23 | Industrial sewage purification method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056876A (en) * | 1996-05-28 | 2000-05-02 | Sharp Kabushiki Kaisha | Method and apparatus for wastewater treatment |
| CN103979749A (en) * | 2014-06-06 | 2014-08-13 | 福州大学 | Treatment device and method for removing heavy metals out of sewage |
| CN109851120A (en) * | 2019-04-16 | 2019-06-07 | 梁毅强 | A kind of effluent treatment plant and effluent purification method |
| 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 |
| CN210559747U (en) * | 2019-05-22 | 2020-05-19 | 湖北润琪生态实业有限公司 | Industrial heavy metal sewage treatment system |
-
2020
- 2020-07-23 CN CN202010717845.8A patent/CN111892241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056876A (en) * | 1996-05-28 | 2000-05-02 | Sharp Kabushiki Kaisha | Method and apparatus for wastewater treatment |
| CN103979749A (en) * | 2014-06-06 | 2014-08-13 | 福州大学 | Treatment device and method for removing heavy metals out of sewage |
| CN109851120A (en) * | 2019-04-16 | 2019-06-07 | 梁毅强 | A kind of effluent treatment plant and effluent purification method |
| CN210559747U (en) * | 2019-05-22 | 2020-05-19 | 湖北润琪生态实业有限公司 | Industrial heavy metal sewage treatment 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 |
Non-Patent Citations (4)
| Title |
|---|
| 刘远: "《食品生物技术导论》", 31 August 2007, 中国农业出版社 * |
| 张增志: "《中国战略性新兴产业——新材料 环境工程材料》", 30 November 2018, 中国铁道出版社 * |
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| 林海等: "固定化生物活性炭对矿山酸性废水中Zn2+的吸附性能", 《东北大学学报（自然科学版）》 * |
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Application publication date: 20201106 |