CN106975435A - Sludge base micropore framework traps leader and the method for repairing underground water heavy metal pollution - Google Patents
Sludge base micropore framework traps leader and the method for repairing underground water heavy metal pollution Download PDFInfo
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- CN106975435A CN106975435A CN201710266402.XA CN201710266402A CN106975435A CN 106975435 A CN106975435 A CN 106975435A CN 201710266402 A CN201710266402 A CN 201710266402A CN 106975435 A CN106975435 A CN 106975435A
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
- C02F1/705—Reduction by metals
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- Environmental & Geological Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of sludge base micropore framework trapping leader and the method for repairing underground water heavy metal pollution, belong to field of environment engineering technology.It is an object of the invention to provide a kind of sludge base micropore framework trapping leader based on modified sewage sludge and the method for repairing underground water heavy metal pollution, the reduction and absorption that have for target can be realized to the heavy metal contaminants in underground water.Sludge base micropore framework of the present invention traps leader, leader is trapped by multiple three-dimensional module compositions one that trap, described three-dimensional trapping module is composited by core area with membranous wall, core area is the sludge base micropore framework hard ball for carrying nanometer Fe (0), membranous wall is sludge-coal tar pitch charing film, and the sludge base micropore framework hard ball for carrying nanometer Fe (0) is filled in composition cylindrical solid trapping module in sludge-coal tar pitch charing film.
Description
Technical field
The present invention relates to a kind of sludge base micropore framework trapping leader and the method for repairing underground water heavy metal pollution, belong to
Field of environment engineering technology.
Background technology
Underground water pollution is the important environmental problem for being related to national economy.The pollutant that mankind's activity is produced penetrates into ground
Under, cause quality of groundwater to deteriorate.The underground water pollution situation of China various regions is on the rise in recent years, according to statistics, China 60%
Groundwater environment be in serious or more serious pollution situation.Typical underground water pollution includes：Saline water intrusion, nitrate is dirty
Dye, petrochemicals pollution, refuse landfill leakage pollution.Wherein heavy metal lead, chromium, cadmium, manganese, arsenic, copper are main dirts
Contaminate element.Current more typical Remedy Technology of Contaminated Groundwater mainly has：Chemical method, Physical, bioanalysis, united restoration method.
Or can be divided into showering and based technique for in-situ remediation by repair mode.Nanometer Fe (0) reduction recovery technique be a quasi-representative can
For the technological means of engineering application, the method for nanometer Fe stability is improved in recent years to be included realizing using materials such as CMC, pectin
Its decentralized, stabilisation.Also underground water can be repaired using sorbing material, but is generally faced with the selectivity of sorbing material
Poor problem.Also there is the activated carbon technology for loading each metalloid and other active components on the adsorbent material, but its activated centre has
Limit, load it is easy to fall off, it is easily affected by environment and fail rapidly.
The content of the invention
It is an object of the invention to provide a kind of sludge base micropore framework trapping leader based on modified sewage sludge and reparation
Heavy metal contaminants in underground water can be realized the reduction and suction that have for target by the method for underground water heavy metal pollution
It is attached.
The present invention to achieve the above object and the technical scheme taken is：
A kind of sludge base micropore framework traps leader, and leader is trapped by multiple three-dimensional module compositions one that trap, described
Solid trapping module is composited by core area with membranous wall, and core area is the sludge base micropore framework hard ball of carrying nanometer Fe (0), film
Wall is sludge-coal tar pitch charing film, and the sludge base micropore framework hard ball for carrying nanometer Fe (0) is filled in sludge-coal tar pitch
Carbonize and cylindrical solid trapping module is constituted in film.
The sludge base micropore framework hard ball of the present invention for carrying nanometer Fe (0) is made up of following step：
(1) take dewatered sludge first to heat 26~30h under the conditions of 105~110 DEG C, then 10 are heated under the conditions of 85~90 DEG C
~12h, then dry, crush after cross 45mm sieve, dewatered sludge dry powder is made；
(2) lauryl sodium sulfate powder is taken, it is 18~20 times of lauryl sodium sulfate powder volume to be dissolved in volume
In water, high-speed stirred is prepared into foam；
(3) the dewatered sludge dry powder of step (1) is taken, then takes the step of volume is 5~8 times of dewatered sludge dry powder volume (2)
Foam in container, with the stirring of 20~30 turns/min rotating speed until foam and dewatered sludge dry powder homogeneous mixing resulting mixture
Material；
(4) conventionally the mixed material of step (3) is poured into hemispherical mold, be stripped after 5~10h, maintenance
15~20h, obtains rough pellet base substrate, then pass through the ball-type base substrate that a diameter of 15~20mm is made in rounding；
(5) sintered balls parison 30~45min of body under the conditions of 950~1050 DEG C, is cooled to room temperature, obtains micropore framework
Hard ball sintered body；
(6) the micropore framework hard ball sintered body of step (5) is soaked in 22~24 in prefabricated nanometer Fe (0) suspension
Hour, take out the sludge base micropore framework hard ball for drying and being made and carrying nanometer Fe (0).
Sludge of the present invention-coal tar pitch charing film is made by following step：
(1) dissolving is carried out to coal tar pitch with organic solvent and constitutes mixed liquor A, wherein every 100~120mL organic solvents are added
100~140g coal tar pitch；
(2) into mixed liquor A add sludge condensation extract solution, wherein in every 100~120mL mixed liquor As add 80~
110mL sludge condensation extract solutions, constitute mixing covering liquid；
(3) using high-strength polyester non-woven fabrics as basic unit, mixing covering liquid is coated on non-woven substrate, thickness is made
3.0~3.5mm film body；
(4) film body is placed in 120~135 DEG C of environment, keeps constant temperature is rapid after 2~2.5 hours to be cooled to 25 DEG C, standing
12~15 hours, it is made after film body is inviscid.
Dewatered sludge of the present invention is the dewatered sludge of municipal sewage plant, moisture content 65~75%, calorific value
3000~3600kcal/kg, content of organics 45~55%.
Nanometer Fe (0) concentration is 0.12~0.15g/L in nanometer Fe (0) suspension of the present invention.
Organic solvent of the present invention is toluene, dimethylbenzene or styrene.
The method that a kind of sludge base micropore framework trapping leader repairs underground water heavy metal pollution, using of the present invention
Sludge base micropore framework traps leader, carries out deep-well drilling in contaminated by heavy metals region, cylindrical solid is trapped into module
Subsurface flow is positioned over to be repaired through path position.
Each deep-well drilling depth of the present invention 10~50m, 20~40cm of bore diameter, the cloth set direction of drilling group is
Perpendicular to groundwater flow direction, or it is laid in and needs the underground water pollution position of focus of repairing.
Compared with prior art, the invention has the advantages that：
(1) using the dewatered sludge of municipal sewage plant as Core Feature material, adopted in membranous wall material preparation process
With coal tar pitch as charing film raw material, the twice laid of sludge, coal tar pitch is realized, belongs to new comprehensive utilization of resources thinking.
(2) novel microporous framework collecter ring walling material and technique are used, its three-dimensional material for trapping is combined by core area with membranous wall
Into dismountable module, the reliability for being reduced, being adsorbed to heavy metal ion in underground water is on the one hand improved, is improved
The reduction of heavy metal contaminants in underground water and adsorption efficiency.On the other hand possess easy-to-use operability, can be used for
Repair the underground water pollution problem under 10~50m of depth complex situations.Have to China's underground water Heavy Metal Pollution existing
Sincere justice.
(3) the micropore framework hard ball used, carries nanometer Fe (0) ion, can promote Fe (0) ion heavy metal
The stabilization of ion reduction effect, lasting performance, it is to avoid Fe (0) ion rapid failure due to reuniting effect.
(4) membranous wall uses sludge to carbonize film with coal tar pitch, and strength stability is high, good reliability, is difficult to disintegrate, in complexity
The ability that impact load is resistant in groundwater environment is strong.The coated core-shell structure of coal tar pitch material formation expands the surface of spheroid
Product, while constituting chemical double layer structure, improves ion penetration stability, improves adsorption efficiency.Organic carboxyl acid in mud
Play a part of providing and construct part, sphere shell shape can be promoted to synthesize coordination polymer, assist to be formed with the firm of stabilization
The organic molecule of property structure, constructs functional form pore passage structure.
(5) material of the present invention is material cheap and easy to get, and preparation method is easy, beneficial to popularization and application, both
Belong to environmental pollution treatment technology, fall within a kind of new material technology of preparing.
(6) present invention is obvious to Cr (VI), Cd (II), Cu (II) repairing effect.For Cr (VI), Cd (II), Cu
(II) pollution concentration is 0.1~10mg/L underground water, is placed after leader module of the invention, Cr (VI), Cd after 5~10 days
(II), Cu (II) clearance is higher than 93~96%.
Brief description of the drawings
Fig. 1 is the structural representation of three-dimensional trapping module of the invention；
Fig. 2 is Fig. 1 top view.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, a kind of sludge base micropore framework trapping leader, by multiple three-dimensional trapping module compositions one
Leader is trapped, described three-dimensional trapping module is composited by core area with membranous wall, and core area is micro- for the sludge base for carrying nanometer Fe (0)
Hole framework hard ball 2, membranous wall is sludge-coal tar pitch charing film 1, and the sludge base micropore framework hard ball for carrying nanometer Fe (0) is filled out
Fill and constitute cylindrical solid trapping module in sludge-coal tar pitch charing film.
The sludge base micropore framework hard ball of the present invention for carrying nanometer Fe (0) is made up of following step：
(1) take dewatered sludge first to heat 26h under the conditions of 105 DEG C, then heat 10h under the conditions of 85 DEG C, then dry, powder
45mm sieves are crossed after broken, dewatered sludge dry powder is made；
(2) lauryl sodium sulfate powder is taken, is dissolved in the water that volume is 18 times of lauryl sodium sulfate powder volume,
High-speed stirred, is prepared into foam；
(3) the dewatered sludge dry powder of step (1) is taken, then takes the bubble of the step of volume is 5 times of dewatered sludge dry powder volume (2)
Foam is in container, with 20 turns/min rotating speed stirring until foam is mixed into mixed material with dewatered sludge dry powder homogeneous；
(4) conventionally the mixed material of step (3) is poured into hemispherical mold, is stripped after 5h, conserve 15h,
Rough pellet base substrate is obtained, then passes through the ball-type base substrate that a diameter of 15mm is made in rounding；
(5) the sintered balls parison body 30min under the conditions of 950 DEG C, is cooled to room temperature, obtains micropore framework hard ball sintering
Body；
(6) that the micropore framework hard ball sintered body of step (5) is soaked in prefabricated nanometer Fe (0) suspension into 22 is small
When, take out the sludge base micropore framework hard ball for drying and being made and carrying nanometer Fe (0).
Sludge of the present invention-coal tar pitch charing film is made by following step：
(1) dissolving is carried out to coal tar pitch with organic solvent and constitutes mixed liquor A, wherein adding 100g per 100mL organic solvents
Coal tar pitch；
(2) sludge condensation extract solution is added into mixed liquor A, wherein adding 80mL sludge condensations in per 100mL mixed liquor As
Extract solution, constitutes mixing covering liquid；
(3) using high-strength polyester non-woven fabrics as basic unit, mixing covering liquid is coated on non-woven substrate, thickness is made
3.0~3.5mm film body；
(4) film body is placed in 120 DEG C of environment, keeps constant temperature is rapid after 2 hours to be cooled to 25 DEG C, stand 12 hours, treat
It is made after film body is inviscid.
Dewatered sludge described in the present embodiment is the dewatered sludge of municipal sewage plant, moisture content 65%, calorific value
3000kcal/kg, content of organics 45%.
Nanometer Fe (0) concentration is 0.12g/L in nanometer Fe (0) suspension described in the present embodiment.
Organic solvent described in the present embodiment is toluene.
Embodiment 2
As depicted in figs. 1 and 2, a kind of sludge base micropore framework trapping leader, by multiple three-dimensional trapping module compositions one
Leader is trapped, described three-dimensional trapping module is composited by core area with membranous wall, and core area is micro- for the sludge base for carrying nanometer Fe (0)
Hole framework hard ball 2, membranous wall is sludge-coal tar pitch charing film 1, and the sludge base micropore framework hard ball for carrying nanometer Fe (0) is filled out
Fill and constitute cylindrical solid trapping module in sludge-coal tar pitch charing film.
The sludge base micropore framework hard ball of the present invention for carrying nanometer Fe (0) is made up of following step：
(1) take dewatered sludge first to heat 30h under the conditions of 110 DEG C, then heat 12h under the conditions of 90 DEG C, then dry, powder
45mm sieves are crossed after broken, dewatered sludge dry powder is made；
(2) lauryl sodium sulfate powder is taken, is dissolved in the water that volume is 20 times of lauryl sodium sulfate powder volume,
High-speed stirred, is prepared into foam；
(3) the dewatered sludge dry powder of step (1) is taken, then takes the bubble of the step of volume is 8 times of dewatered sludge dry powder volume (2)
Foam is in container, with 30 turns/min rotating speed stirring until foam is mixed into mixed material with dewatered sludge dry powder homogeneous；
(4) conventionally the mixed material of step (3) is poured into hemispherical mold, is stripped after 10h, conserve 20h,
Rough pellet base substrate is obtained, then passes through the ball-type base substrate that a diameter of 20mm is made in rounding；
(5) the sintered balls parison body 45min under the conditions of 1050 DEG C, is cooled to room temperature, obtains micropore framework hard ball burning
Knot body；
(6) that the micropore framework hard ball sintered body of step (5) is soaked in prefabricated nanometer Fe (0) suspension into 24 is small
When, take out the sludge base micropore framework hard ball for drying and being made and carrying nanometer Fe (0).
Sludge of the present invention-coal tar pitch charing film is made by following step：
(1) dissolving is carried out to coal tar pitch with organic solvent and constitutes mixed liquor A, wherein adding 140g per 120mL organic solvents
Coal tar pitch；
(2) sludge condensation extract solution is added into mixed liquor A, wherein it is dirty that 110mL is added in every 100~120mL mixed liquor As
Mud concentrated extracting solution, constitutes mixing covering liquid；
(3) using high-strength polyester non-woven fabrics as basic unit, mixing covering liquid is coated on non-woven substrate, thickness is made
3.5mm film body；
(4) film body is placed in 135 DEG C of environment, keeps constant temperature is rapid after 2.5 hours to be cooled to 25 DEG C, stand 15 hours,
It is made after film body is inviscid.
Dewatered sludge of the present invention is the dewatered sludge of municipal sewage plant, moisture content 75%, calorific value
3600kcal/kg, content of organics 55%.
Nanometer Fe (0) concentration is 0.15g/L in nanometer Fe (0) suspension described in the present embodiment.
Organic solvent described in the present embodiment is dimethylbenzene.
Embodiment 3
As depicted in figs. 1 and 2, a kind of sludge base micropore framework trapping leader, by multiple three-dimensional trapping module compositions one
Leader is trapped, described three-dimensional trapping module is composited by core area with membranous wall, and core area is micro- for the sludge base for carrying nanometer Fe (0)
Hole framework hard ball 2, membranous wall is sludge-coal tar pitch charing film 1, and the sludge base micropore framework hard ball for carrying nanometer Fe (0) is filled out
Fill and constitute cylindrical solid trapping module in sludge-coal tar pitch charing film.
The sludge base micropore framework hard ball of the present invention for carrying nanometer Fe (0) is made up of following step：
(1) take dewatered sludge first to heat 28h under the conditions of 108 DEG C, then heat 11h under the conditions of 87 DEG C, then dry, powder
45mm sieves are crossed after broken, dewatered sludge dry powder is made；
(2) lauryl sodium sulfate powder is taken, is dissolved in the water that volume is 19 times of lauryl sodium sulfate powder volume,
High-speed stirred, is prepared into foam；
(3) the dewatered sludge dry powder of step (1) is taken, then takes the bubble of the step of volume is 7 times of dewatered sludge dry powder volume (2)
Foam is in container, with 25 turns/min rotating speed stirring until foam is mixed into mixed material with dewatered sludge dry powder homogeneous
(4) conventionally the mixed material of step (3) is poured into hemispherical mold, is stripped after 7h, conserve 18h,
Rough pellet base substrate is obtained, then passes through the ball-type base substrate that a diameter of 18mm is made in rounding；
(5) the sintered balls parison body 40min under the conditions of 1000 DEG C, is cooled to room temperature, obtains micropore framework hard ball burning
Knot body；
(6) that the micropore framework hard ball sintered body of step (5) is soaked in prefabricated nanometer Fe (0) suspension into 23 is small
When, take out the sludge base micropore framework hard ball for drying and being made and carrying nanometer Fe (0).
Sludge of the present invention-coal tar pitch charing film is made by following step：
(1) dissolving is carried out to coal tar pitch with organic solvent and constitutes mixed liquor A, wherein adding 120g per 110mL organic solvents
Coal tar pitch；
(2) sludge condensation extract solution is added into mixed liquor A, wherein it is dense to add 100mL sludge in per 110mL mixed liquor As
Contracting extract solution, constitutes mixing covering liquid；
(3) using high-strength polyester non-woven fabrics as basic unit, mixing covering liquid is coated on non-woven substrate, thickness is made
3.2mm film body；
(4) film body is placed in 130 DEG C of environment, keeps constant temperature is rapid after 2.3 hours to be cooled to 25 DEG C, stand 14 hours,
It is made after film body is inviscid.
Dewatered sludge of the present invention is the dewatered sludge of municipal sewage plant, moisture content 70%, calorific value
3300kcal/kg, content of organics 50%.
Nanometer Fe (0) concentration is 0.13g/L in nanometer Fe (0) suspension described in the present embodiment.
Organic solvent described in the present embodiment is styrene.
Embodiment 4
The method that a kind of sludge base micropore framework trapping leader repairs underground water heavy metal pollution, using of the present invention
Sludge base micropore framework traps leader, carries out deep-well drilling in contaminated by heavy metals region, and each deep-well drilling depth 10~
50m, 20~40cm of bore diameter, the cloth set direction of drilling group are, perpendicular to groundwater flow direction, or to be laid in and need emphasis
The underground water pollution position of reparation, is positioned over subsurface flow by cylindrical solid trapping module and is repaired through path position.
Claims (8)
1. a kind of sludge base micropore framework traps leader, it is characterized in that leader is trapped by multiple three-dimensional module compositions one that trap,
Described three-dimensional trapping module is composited by core area with membranous wall, and core area is hard for the sludge base micropore framework for carrying nanometer Fe (0)
Matter ball (2), membranous wall is sludge-coal tar pitch charing film (1), and the sludge base micropore framework hard ball for carrying nanometer Fe (0) is filled in
Cylindrical solid trapping module is constituted in sludge-coal tar pitch charing film.
2. a kind of sludge base micropore framework trapping leader according to claim 1, it is characterized in that described carrying nanometer Fe
(0) sludge base micropore framework hard ball is made up of following step：
(1) take dewatered sludge first under the conditions of 105~110 DEG C heat 26~30h, then under the conditions of 85~90 DEG C heating 10~
12h, then dry, crush after cross 45mm sieve, dewatered sludge dry powder is made；
(2) lauryl sodium sulfate powder is taken, is dissolved in the water that volume is 18~20 times of lauryl sodium sulfate powder volume,
High-speed stirred, is prepared into foam；
(3) the dewatered sludge dry powder of step (1) is taken, then takes the bubble of the step of volume is 5~8 times of dewatered sludge dry powder volume (2)
Foam is in container, with 20~30 turns/min rotating speed stirring until foam is mixed into mixed material with dewatered sludge dry powder homogeneous；
(4) conventionally the mixed material of step (3) is poured into hemispherical mold, be stripped after 5~10h, maintenance 15~
20h, obtains rough pellet base substrate, then pass through the ball-type base substrate that a diameter of 15~20mm is made in rounding；
(5) sintered balls parison 30~45min of body under the conditions of 950~1050 DEG C, is cooled to room temperature, obtains micropore framework hard
Ball sintered body；
(6) that the micropore framework hard ball sintered body of step (5) is soaked in prefabricated nanometer Fe (0) suspension into 22~24 is small
When, take out the sludge base micropore framework hard ball for drying and being made and carrying nanometer Fe (0).
3. a kind of sludge base micropore framework trapping leader according to claim 1, it is characterized in that described sludge-coal drip
Green grass or young crops charing film is made by following step：
(1) dissolving is carried out to coal tar pitch with organic solvent and constitutes mixed liquor A, wherein every 100~120mL organic solvents add 100
~140g coal tar pitch；
(2) sludge condensation extract solution is added into mixed liquor A, wherein it is dirty that 80~110mL is added in every 100~120mL mixed liquor As
Mud concentrated extracting solution, constitutes mixing covering liquid；
(3) using high-strength polyester non-woven fabrics as basic unit, mixing covering liquid is coated on non-woven substrate, thickness 3.0 is made
~3.5mm film body；
(4) film body is placed in 120~135 DEG C of environment, keeps constant temperature is rapid after 2~2.5 hours to be cooled to 25 DEG C, stand 12~
15 hours, it is made after film body is inviscid.
4. a kind of sludge base micropore framework trapping leader according to claim 2, it is characterized in that described dewatered sludge is
The dewatered sludge of municipal sewage plant, moisture content 65~75%, 3000~3600kcal/kg of calorific value, content of organics 45~
55%.
5. a kind of sludge base micropore framework trapping leader according to claim 2, it is characterized in that described nanometer Fe (0) is hanged
Nanometer Fe (0) concentration is 0.12~0.15g/L in turbid liquid.
6. a kind of sludge base micropore framework trapping leader according to claim 3, it is characterized in that described organic solvent is
Toluene, dimethylbenzene or styrene.
7. a kind of method that sludge base micropore framework trapping leader repairs underground water heavy metal pollution, it is characterized in that will using right
The sludge base micropore framework trapping leader described in any one in 1-6 is sought, deep-well drilling is carried out in contaminated by heavy metals region,
Cylindrical solid trapping module is positioned over into subsurface flow to be repaired through path position.
8. a kind of sludge base micropore framework trapping leader according to claim 7 repairs the side of underground water heavy metal pollution
Method, it is characterized in that each deep-well drilling depth 10~50m, 20~40cm of bore diameter, the cloth set direction of drilling group is vertical
Directly in groundwater flow direction, or it is laid in and needs the underground water pollution position of focus of repairing.
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Cited By (3)
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| CN108854959A (en) * | 2018-07-04 | 2018-11-23 | 湖南农业大学 | A kind of preparation method and applications of nano zero valence iron sludge based biomass charcoal |
| CN109877152A (en) * | 2019-03-21 | 2019-06-14 | 贵州民族大学 | A kind of prosthetic device and restorative procedure for heavy metal ion in artificial swamp |
| CN112108118A (en) * | 2020-09-21 | 2020-12-22 | 黄河水利职业技术学院 | Magnetic biomass charcoal based on Fenton sludge and cellulose and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854959A (en) * | 2018-07-04 | 2018-11-23 | 湖南农业大学 | A kind of preparation method and applications of nano zero valence iron sludge based biomass charcoal |
| CN109877152A (en) * | 2019-03-21 | 2019-06-14 | 贵州民族大学 | A kind of prosthetic device and restorative procedure for heavy metal ion in artificial swamp |
| CN112108118A (en) * | 2020-09-21 | 2020-12-22 | 黄河水利职业技术学院 | Magnetic biomass charcoal based on Fenton sludge and cellulose and preparation method and application thereof |
| CN112108118B (en) * | 2020-09-21 | 2023-04-25 | 黄河水利职业技术学院 | Fenton sludge and cellulose-based magnetic biomass charcoal and preparation method and application thereof |
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Effective date of registration: 20191227 Address after: 030032 room 04, floor 6, building 1, high tech business incubation base, Longsheng street, Tanghuai Park, Taiyuan comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Shanxi green boat Environment Technology Co., Ltd. Address before: 030024 West Street, Taiyuan, Shanxi, No. 79, No. Patentee before: Taiyuan University of Technology |