AU2021105293A4 - Method for preparing iron sludge-based biochar micro-electrolysis filler and application in treatment of uranium-containing wastewater thereof - Google Patents
Method for preparing iron sludge-based biochar micro-electrolysis filler and application in treatment of uranium-containing wastewater thereof Download PDFInfo
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- AU2021105293A4 AU2021105293A4 AU2021105293A AU2021105293A AU2021105293A4 AU 2021105293 A4 AU2021105293 A4 AU 2021105293A4 AU 2021105293 A AU2021105293 A AU 2021105293A AU 2021105293 A AU2021105293 A AU 2021105293A AU 2021105293 A4 AU2021105293 A4 AU 2021105293A4
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- iron
- powder
- micro
- based biochar
- electrolysis filler
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000000945 filler Substances 0.000 title claims abstract description 47
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 42
- 239000010802 sludge Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000002351 wastewater Substances 0.000 title claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 20
- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 19
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 19
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 12
- 239000000440 bentonite Substances 0.000 claims abstract description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 8
- 238000001354 calcination Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000011230 binding agent Substances 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- -1 ferrous metals Chemical class 0.000 claims abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 15
- 238000004065 wastewater treatment Methods 0.000 claims description 11
- 229940092782 bentonite Drugs 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 229940080314 sodium bentonite Drugs 0.000 claims description 4
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/16—Clays or other mineral silicates
-
- 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
- C02F2101/006—Radioactive compounds
Abstract
OF THE DISCLOSURE
The present disclosure relates to a method for treating uranium-containing
wastewater by an iron-carbon micro-electrolysis process, and a method for preparing a
filler thereof. A method for preparing an iron sludge-based biochar micro-electrolysis
filler uses a reducing iron powder and an excess sludge-based biochar as a raw material,
sodium silicate or/and bentonite as a binding agent, and a copper powder and a cobalt
powder which are heavy non-ferrous metals as a catalyst, to mix in a certain ratio, and
then sinters to form a regularized iron-carbon micro-electrolysis filler by calcining at a
high temperature. The present disclosure overcomes the shortcomings of the existing
iron-carbon filler which has high cost, and is easy to harden and passivate. And the
present disclosure uses the iron-carbon micro-electrolysis filler to treat the uranium
containing wastewater in a creative manner.
ABSTRACT DRAWING - Fig 1
17958903_1 (GHMatters) P116968.AU
1/1
FIG. 1
FIG. 2
Description
1/1
FIG. 1
FIG. 2
[01] The present disclosure relates to a method for treating uranium-containing wastewater by an iron-carbon micro-electrolysis process and a method for preparing a
filler thereof, specifically relates to a method for preparing an iron-carbon micro
electrolysis filler capable of being recycled, and a method for high-efficiently treating the
uranium-containing wastewater thereof.
[02] With the rapid development of economy, the demand for nuclear energy
continues to increase in China. The vigorous development of the nuclear energy is bound
to produce a large amount of uranium-containing wastewater which greatly threatens
humans and natural environment. Therefore, the treatment or rapid treatment of the
uranium-containing wastewater is very important.
[03] The iron-carbon micro-electrolysis technique is a superior process that uses the
electrochemical corrosion of metals to treat pollutants in the wastewater. When the closely
contacted iron and carbon are immersed in the waste liquid, countless miniature galvanic
cells are formed due to a potential difference of about 1.2 V generated between iron and
carbon, to speed up the reaction.
[04] Currently, demonstrated by many research experiments, the traditional micro
electrolysis technique formed by simple mixing of the reducing iron powder with the
activated carbon powder has the shortcomings that the filler is easy to harden and
passivate, leading to the interruption of the micro-electrolysis process, and affecting the
treatment effect. To overcome the shortcomings of the traditional micro-electrolysis
technique, a regularized iron-carbon micro-electrolysis filler is developed, which has few
reports about related techniques. In addition, the carbon source for preparing the
regularized micro-electrolysis filler is basically the activated carbon powder. While there
17958903_1 (GHMatters) P116968.AU are also few reports about innovatively using the excess sludge-based biochar as the carbon source for preparing the regularized micro-electrolysis filler.
[05] Aiming to the shortcomings of the existing iron-carbon filler which has high cost, and is easy to harden and passivate. The present disclosure provides a regularized iron
carbon micro-electrolysis filler and a preparation method thereof. And the present
disclosure innovatively uses the regularized iron-carbon micro-electrolysis filler to treat
the uranium-containing wastewater.
[06] The technical solutions employed by the present disclosure are as follows:
[07] A method for preparing an iron sludge-based biochar micro-electrolysis filler
includes using a reducing iron powder and an excess sludge-based biochar as a raw
material, sodium silicate or/and bentonite as a binding agent, and a copper powder and a
cobalt powder which are heavy non-ferrous metals as a catalyst, to mix in a certain ratio,
and then sinters to form a regularized iron-carbon micro-electrolysis filler by calcining at
a high temperature of 400-900°C after being granulated and dried;
the mixing ratio is:
40-70 parts of the reducing iron powder, 20-50 parts of the excess sludge-based
biochar, 15-25 parts of sodium silicate or/and bentonite, 5-10 parts of the copper powder,
and 1-5 parts of the cobalt powder
[08] Preferably, a preparation process of the excess sludge-based biochar is as follows:
taking excess sludge after being dehydrated from a wastewater treatment plant to dry and
crush, then putting in a quartz boat and calcining in a muffle furnace at a temperature of
300-600°C for 2 h under an anaerobic condition, then naturally cooling to a room
temperature under an oxygen-free condition, and grinding the obtained excess sludge in
a mortar to pass through a 120-160 mesh sieve.
[09] Preferably, a preparation process of the reducing iron powder is as follows:
taking a certain amount of an iron powder to grind in the mortar to pass through an 80
120 mesh sieve, then soaking the obtained iron powder with diluted hydrochloric acid of
0.1 mol/L for 2-4 h before use, and drying in a shade for standby;
17958903_1 (GHMatters) P116968.AU the copper powder or the cobalt powder is prepared as follows: taking a certain amount of the copper powder or the cobalt powder to grind in the mortar, and then passing through a 160-200 mesh sieve.
[10] Preferably, sodium silicate or bentonite is prepared as follows: taking a certain amount of sodium silicate or bentonite to grind in the mortar, and then passing through
an 80-120 mesh sieve.
[11] The present disclosure provides an application of the regularized iron-carbon
micro-electrolysis filler prepared by the method for preparing the iron sludge-based
biochar micro-electrolysis filler in the treatment of uranium-containing wastewater.
[12] The beneficial effects of the present disclosure are as follows:
[13] 1. The method for preparing the iron sludge-based biochar micro-electrolysis filler of the present disclosure mixes the reducing iron powder, the excess sludge-based
biochar, the binding agent, and the catalyst to granulate and dry, and then sinters to form
a regularized filler through a high temperature. Compared with the traditional micro
electrolysis filler, the regularized iron-carbon filler prepared by the present disclosure
overcomes the shortcomings of the traditional iron-carbon micro-electrolysis filler which
is easy to harden and passivate.
[14] 2. The method for preparing the iron sludge-based biochar micro-electrolysis
filler of the present disclosure high-efficiently uses the excess sludge-based biochar, and
the prepared novel regularized filler can high-efficiently treat the uranium-containing
wastewater with medium and low concentrations. It has good treatment effect on the
laboratory wastewater, realizing the waste recycling. The method is simple with low cost
and excellent treatment effect.
[15] FIG. 1 is a microscopic view of a surface of a regularized iron sludge-based
biochar filler of the present disclosure;
[16] FIG. 2 is a microscopic view of the regularized iron sludge-based biochar filler
of the present disclosure after being used to treat uranium-containing wastewater.
17958903_1 (GHMatters) P116968.AU
[17] The technical solutions of the present disclosure will be further described in
detail below in conjunction with specific examples.
[18] The raw materials used in the following examples are prepared as follows:
[19] (1) iron powder: taking a certain amount of the iron powder, and grinding in the
mortar, and then passing the ground iron powder through the 80-120 mesh sieve,
preferably the 100-mesh sieve, then soaking the obtained iron powder with diluted
hydrochloric acid of 0.1 mol/L for 2-4 h before use, and drying in a shade for standby.
[20] (2) copper powder: taking a certain amount of the copper powder, and grinding in the mortar, and then passing the ground copper powder through the 160-200 mesh sieve,
preferably the 180-mesh sieve.
[21] (3) cobalt powder: taking a certain amount of the cobalt powder, and grinding in the mortar, and then passing the ground cobalt powder through the 160-200 mesh sieve,
preferably the 180-mesh sieve.
[22] (4) sodium silicate: taking a certain amount of sodium silicate, and grinding in
the mortar, and then passing the ground sodium silicate through the 80-120 mesh sieve,
preferably the 100-mesh sieve.
[23] Example 1
[24] The method for preparing the iron sludge-based biochar micro-electrolysis filler
of this example is as follows:
[25] The excess sludge after being dehydrated is taken from a wastewater treatment
plant to dry and crush, and then put in the quartz boat and calcined in the muffle furnace
at 400°C for 2 h under the anaerobic condition, then naturally cooled to a room
temperature under the oxygen-free condition, and ground in the mortar to pass through
the 150-mesh sieve.
[26] The raw materials are mixed according to the mixing ratio: 40 parts of the
reducing iron powder, 50 parts of the excess sludge-based biochar, 25 parts of sodium
silicate or/and bentonite, 10 parts of the copper powder, and 5 parts of the cobalt powder,
and then sintered to form the regularized iron-carbon micro-electrolysis filler by calcining
at 700°C after being granulated and dried.
17958903_1 (GHMatters) P116968.AU
[27] Example 2
[28] The excess sludge after being dehydrated is taken from a wastewater treatment plant to dry and crush, and then put in the quartz boat and calcined in the muffle furnace
at 520°C for 2 h under the anaerobic condition, then naturally cooled to a room
temperature under the oxygen-free condition, and ground in the mortar to pass through
the 140-mesh sieve.
[29] The raw materials are mixed according to the mixing ratio: 60 parts of the
reducing iron powder, 30 parts of the excess sludge-based biochar, 20 parts of sodium
silicate or/and bentonite, 8 parts of the copper powder, and 4 parts of the cobalt powder,
and then sintered to form the regularized iron-carbon micro-electrolysis filler by calcining
at 800°C after being granulated and dried.
[30] Example 3
[31] The excess sludge after being dehydrated is taken from a wastewater treatment
plant to dry and crush, and then put in the quartz boat and calcined in the muffle furnace
at 430°C for 2 h under the anaerobic condition, then naturally cooled to a room
temperature under the oxygen-free condition, and ground in the mortar to pass through
the 130-mesh sieve.
[32] The raw materials are mixed according to the mixing ratio: 45 parts of the
reducing iron powder, 30 parts of the excess sludge-based biochar, 25 parts of sodium
silicate or/and bentonite, 10 parts of the copper powder, and 1 parts of the cobalt powder,
and then sintered to form the regularized iron-carbon micro-electrolysis filler by calcining
at 900°C after being granulated and dried.
[33] The following applications apply the regularized iron-carbon micro-electrolysis
filler prepared by the above-mentioned method to treat the uranium-containing
wastewater. Various simulated uranium-containing wastewaters with different
concentrations are prepared using uranium standard solution with the concentration of1
g/L to dilute.
[34] Application 1
[35] A certain amount of the simulated uranium-containing wastewater of 10 mg/L is
accurately weighed, and then a certain mass of the regularized iron-carbon micro
17958903_1 (GHMatters) P116968.AU electrolysis filler is weighed to treat the simulated uranium-containing wastewater. Many research tests show that when the addition amount of the regularized iron-carbon filler is
2 g/L, and the reaction time is 60 min, the removal efficiency is as high as 98%. Thus, the
treatment effect is good.
[36] Table 1 shows the water quality index of the iron sludge-based biochar micro
electrolysis filler prepared in this example before and after the wastewater treatment
[371
U (mg/L) pH
Before the wastewater treatment 10.0 3.28
After the wastewater treatment 0.20 5.0
Removal efficiency 98.0%
[38] Application 2
[39] A certain amount of the simulated uranium-containing wastewater of 50 mg/L is accurately weighed, and then a certain mass of the regularized iron-carbon micro
electrolysis filler is weighed to treat the simulated uranium-containing wastewater. Many
research tests show that when the addition amount of the regularized iron-carbon filler is
2 g/L, and the reaction time is 5 h, the removal efficiency is as high as 99.7%.
[40] Table 2 shows the water quality index of the iron sludge-based biochar micro
electrolysis filler prepared in this example before and after the wastewater treatment
[41]
U (mg/L) pH
Before the wastewater treatment 50.0 3.26
After the wastewater treatment 0.15 4.70
Removal efficiency 99.7%
[42] The regularized iron-carbon micro-electrolysis filler prepared by the method of
the present disclosure can also be applied to the treatment of the refractory organic
wastewater, and has good application effect in the treatment of ammonia nitrogen and
[43] It is to be understood that, if any prior art publication is referred to herein, such
17958903_1 (GHMatters) P116968.AU reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
[44] In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
17958903_1 (GHMatters) P116968.AU
Claims (5)
1. A method for preparing an iron sludge-based biochar micro-electrolysis filler,
wherein, the method uses a reducing iron powder and an excess sludge-based biochar as
a raw material, sodium silicate or/and bentonite as a binding agent, and a copper powder
and a cobalt powder which are heavy non-ferrous metals as a catalyst, to mix in a certain
ratio, and then sinters to form a regularized iron-carbon micro-electrolysis filler by
calcining at a high temperature of 400-900°C after being granulated and dried;
wherein, the mixing ratio is:
40-70 parts of the reducing iron powder, 20-50 parts of the excess sludge-based
biochar, 15-25 parts of sodium silicate or/and bentonite, 5-10 parts of the copper powder,
and 1-5 parts of the cobalt powder.
2. The method for preparing the iron sludge-based biochar micro-electrolysis filler
according to claim 1, wherein, a preparation process of the excess sludge-based biochar
is as follows: taking excess sludge after being dehydrated from a wastewater treatment
plant to dry and crush, then putting in a quartz boat and calcining in a muffle furnace at a
temperature of 300-600°C for 2 h under an anaerobic condition, then naturally cooling to
a room temperature under an oxygen-free condition, and grinding the obtained excess
sludge in a mortar to pass through a 120-160 mesh sieve.
3. The method for preparing the iron sludge-based biochar micro-electrolysis filler
according to claim 1, wherein, a preparation process of the reducing iron powder is as
follows: taking a certain amount of an iron powder to grind in a mortar to pass through
an 80-120 mesh sieve, then soaking the obtained iron powder with diluted hydrochloric
acid of 0.1 mol/L for 2-4 h before use, and drying in a shade for standby;
the copper powder or the cobalt powder is prepared as follows: taking a certain
amount of the copper powder or the cobalt powder to grind in the mortar, and then passing
through a 160-200 mesh sieve.
4. The method for preparing the iron sludge-based biochar micro-electrolysis filler
according to claim 1, wherein, sodium silicate or bentonite is prepared as follows: taking
a certain amount of sodium silicate or bentonite to grind in a mortar, and then passing
through an 80-120 mesh sieve.
17958903_1 (GHMatters) P116968.AU
5. An application of the regularized iron-carbon micro-electrolysis filler prepared
by the method for preparing the iron sludge-based biochar micro-electrolysis filler
according to claim 1 in a treatment of uranium-containing wastewater is provided.
17958903_1 (GHMatters) P116968.AU
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105293A AU2021105293A4 (en) | 2021-08-11 | 2021-08-11 | Method for preparing iron sludge-based biochar micro-electrolysis filler and application in treatment of uranium-containing wastewater thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105293A AU2021105293A4 (en) | 2021-08-11 | 2021-08-11 | Method for preparing iron sludge-based biochar micro-electrolysis filler and application in treatment of uranium-containing wastewater thereof |
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| AU2021105293A4 true AU2021105293A4 (en) | 2021-10-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230119A (en) * | 2021-12-28 | 2022-03-25 | 重庆大学 | Fenton sludge and waste biochar cooperative recycling treatment method and system |
| CN114538600A (en) * | 2022-03-28 | 2022-05-27 | 中化学朗正环保科技有限公司 | Iron-carbon coupled microbial film carrier material, reaction device thereof and nitrogen and phosphorus removal system |
| CN114887553A (en) * | 2022-06-16 | 2022-08-12 | 青岛科技大学 | Preparation of straw biochar-based micro-electrolysis filler and pharmaceutical wastewater treatment process |
| CN115650426A (en) * | 2022-11-08 | 2023-01-31 | 合肥工业大学 | Efficient denitrification process based on micro-electrolysis waste iron-sludge-based filling material |
-
2021
- 2021-08-11 AU AU2021105293A patent/AU2021105293A4/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230119A (en) * | 2021-12-28 | 2022-03-25 | 重庆大学 | Fenton sludge and waste biochar cooperative recycling treatment method and system |
| CN114230119B (en) * | 2021-12-28 | 2023-07-04 | 重庆大学 | Fenton sludge and waste biochar cooperative recycling treatment method and system |
| CN114538600A (en) * | 2022-03-28 | 2022-05-27 | 中化学朗正环保科技有限公司 | Iron-carbon coupled microbial film carrier material, reaction device thereof and nitrogen and phosphorus removal system |
| CN114538600B (en) * | 2022-03-28 | 2023-12-26 | 中化学朗正环保科技有限公司 | Iron-carbon coupled microbial membrane carrier material, reaction device and nitrogen and phosphorus removal system thereof |
| CN114887553A (en) * | 2022-06-16 | 2022-08-12 | 青岛科技大学 | Preparation of straw biochar-based micro-electrolysis filler and pharmaceutical wastewater treatment process |
| CN115650426A (en) * | 2022-11-08 | 2023-01-31 | 合肥工业大学 | Efficient denitrification process based on micro-electrolysis waste iron-sludge-based filling material |
| CN115650426B (en) * | 2022-11-08 | 2024-04-02 | 合肥工业大学 | Efficient denitrification process based on micro-electrolysis waste iron mud-based filling material |
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