CN107694532A - A kind of soil heavy mental adsorbent and preparation method thereof - Google Patents
A kind of soil heavy mental adsorbent and preparation method thereof Download PDFInfo
- Publication number
- CN107694532A CN107694532A CN201711309791.6A CN201711309791A CN107694532A CN 107694532 A CN107694532 A CN 107694532A CN 201711309791 A CN201711309791 A CN 201711309791A CN 107694532 A CN107694532 A CN 107694532A
- Authority
- CN
- China
- Prior art keywords
- parts
- soil
- toluene
- mps
- dispensing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
Abstract
The invention belongs to soil heavy mental adsorbent technical field, and in particular to a kind of soil heavy mental adsorbent and preparation method thereof, described soil heavy mental adsorbent, be made up of the raw material of following parts by weight：20 40 parts of peat, 15 30 parts of feldspathic sandstone soil sample, 10 20 parts of modified attapulgite, 58 parts of sawdust, 6 10 parts of wheat bran, 35 parts of urea, 35 parts of chitosan, 24 parts of alkali lignin, 40 90 parts of deionized water, the present invention rapidly and efficiently, it is pollution-free.
Description
Technical field
The invention belongs to soil heavy mental adsorbent technical field, and in particular to a kind of soil heavy mental adsorbent and its system
Preparation Method.
Background technology
With industrial development and the modernization of agricultural production, pollution of the heavy metal pollution to soil turns into very important and asked
Topic, the reparation of existing heavy metal pollution include peripheral doses, biological prosthetic, chemical remediation etc.；Peripheral doses include soil removal and replacement, turned over
Soil, go the measures such as table soil, although although peripheral doses more thoroughly, usable floor area is smaller and complex operation；It is biological prosthetic
It is that biology is repaiied by controlling water regime and oxidation-reduction potential in agricultural soil to enter endophytic content to reduce heavy metal
Recover by planting the plant soil restoration with absorption heavy metal effect, although biological prosthetic simple to operate, when repairing
Between required for time length；Chemical remediation is to reduce heavy metal in soil and farming by using medicaments such as additive, adsorbents
Transfer ability between thing is so as to reach the purpose of rehabilitating soil, although efficiently meeting contaminated soil, therefore prior art needs
Further to improve.
The content of the invention
It is an object of the invention to provide it is a kind of rapidly and efficiently, free of contamination soil heavy mental adsorbent.
Based on above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of soil heavy mental adsorbent, it is made up of the raw material of following parts by weight：Peat 20-40 parts, feldspathic sandstone soil sample 15-30
Part, modified attapulgite 10-20 parts, sawdust 5-8 parts, wheat bran 6-10 parts, urea 3-5 parts, chitosan 3-5 parts, alkali lignin 2-4 parts,
Deionized water 40-90 parts.
Further, described modified attapulgite is made by following methods：
12-13g ATP is dried into 2-3h at 105-108 DEG C, dried ATP is added in 100-105ml toluene,
It is stirred until homogeneous, is again heated to 60-62 DEG C, then adds 10-12mlMPS, constant temperature stirring 4-5h, then carry out through being filtered by vacuum machine
After filtering, washing, separation of solid and liquid, 2-3h is dried at 105-110 DEG C, the MPS obtained described in the recessed soil of MPS is methacryloxypropyl
Base propyl trimethoxy silicane）, the recessed soil of MPS is ground to 200-250 mesh, takes the recessed soil of the MPS after 2-3g grindings to add 100-
Stirred in 105ml toluene, sequentially add 0.5-0.7g acrylic acid and azodiisobutyronitrile, described azodiisobutyronitrile
Quality is the 2.5-4% of acrylic acid quality, under a nitrogen, unnecessary third is removed being washed with toluene, absolute ethyl alcohol and deionized water
Olefin(e) acid, 200-250 mesh is ground to, obtains modified attapulgite；
Solvent needed for above-described washing is toluene, absolute ethyl alcohol and deionized water.
A kind of preparation method of soil heavy mental adsorbent, described soil heavy mental adsorbent is by below by step system
：
（1）After peat, sawdust and wheat bran are mixed, the ionized water for adding half in raw material stirs, and is then 40- in temperature
55 DEG C, humidity fermented 3-5h under conditions of being 80-90%RH, obtain dispensing 1；
（2）The ionized water of second half in raw material is taken, the pH of the ionized water is adjusted to 8.5-9, chitosan dissolving is added, obtains dispensing
2；
（3）Feldspathic sandstone soil sample, modified attapulgite, urea, alkali lignin, dispensing 1 and dispensing 2 are stirred.
The various heavies such as present invention energy efficient absorption lead, zinc, copper, cadmium, and adsorptivity is stronger, can be with conditioned soil
Earth, increase the beneficial bacterium in soil, reduce harmful bacteria, prevent and treat soil hardening, moreover it is possible to strengthen soil fertility, improve the soil organism
Content.
Embodiment
Embodiment 1：
A kind of soil heavy mental adsorbent, it is made up of the raw material of following parts by weight：20 parts of peat, 15 parts of feldspathic sandstone soil sample, change
Recessed native 10 parts of property, 5 parts of sawdust, 6 parts of wheat bran, 3 parts of urea, 3 parts of chitosan, 2 parts of alkali lignin, 40 parts of deionized water.
Described modified attapulgite is made by following methods：
12g ATP is dried into 2h at 105 DEG C, dried ATP is added in 100ml toluene, is stirred until homogeneous, then
60 DEG C are heated to, then adds 10mlMPS, constant temperature stirring 4h, then filtered through vacuum filtration machine, washed, after separation of solid and liquid,
2h is dried at 105 DEG C, obtains the recessed soil of MPS, described MPS is methacryloxypropyl trimethoxy silane, and MPS is recessed
Soil is ground to 200 mesh, takes the recessed soil of the MPS after 2g grindings to add in 100ml toluene and stirs, sequentially adds 0.5g acrylic acid
And azodiisobutyronitrile, described azodiisobutyronitrile quality are the 2.5% of acrylic acid quality, under a nitrogen, with toluene, nothing
Water-ethanol and deionized water washing remove unnecessary acrylic acid, are ground to 200 mesh, obtain modified attapulgite；
Solvent needed for above-described washing is toluene, absolute ethyl alcohol and deionized water.
A kind of preparation method of soil heavy mental adsorbent, described soil heavy mental adsorbent is by below by step system
：
（1）After peat, sawdust and wheat bran are mixed, the ionized water for adding half in raw material stirs, and is then 40 in temperature
DEG C, humidity fermented 3h under conditions of being 80%RH, obtain dispensing 1；
（2）The ionized water of second half in raw material is taken, the pH of the ionized water is adjusted to 8.5, chitosan dissolving is added, obtains dispensing 2；
（3）Feldspathic sandstone soil sample, modified attapulgite, urea, alkali lignin, dispensing 1 and dispensing 2 are stirred.
Embodiment 2：
A kind of soil heavy mental adsorbent, it is made up of the raw material of following parts by weight：30 parts of peat, 22 parts of feldspathic sandstone soil sample, change
Recessed native 15 parts of property, 7 parts of sawdust, 8 parts of wheat bran, 4 parts of urea, 4 parts of chitosan, 3 parts of alkali lignin, 65 parts of deionized water.
Described modified attapulgite is made by following methods：
12.5g ATP is dried into 2.5h at 106 DEG C, dried ATP is added in 102ml toluene, stirred to equal
It is even, 61 DEG C are again heated to, then adds 11mlMPS, constant temperature stirring 4.5h, then is filtered, washed, solid-liquid through vacuum filtration machine
After separation, 2.53h is dried at 107 DEG C, obtains the recessed soil of MPS, described MPS is methacryloxypropyl trimethoxy silicon
Alkane, the recessed soil of MPS is ground to 225 mesh, takes the recessed soil of the MPS after 2.5g grindings to add in 102ml toluene and stir, then add successively
Enter 0.6g acrylic acid and azodiisobutyronitrile, described azodiisobutyronitrile quality is the 3.25% of acrylic acid quality, in nitrogen
Under, unnecessary acrylic acid is removed being washed with toluene, absolute ethyl alcohol and deionized water, 225 mesh is ground to, obtains modified attapulgite；
Solvent needed for above-described washing is toluene, absolute ethyl alcohol and deionized water.
A kind of preparation method of soil heavy mental adsorbent, described soil heavy mental adsorbent is by below by step system
：
（1）After peat, sawdust and wheat bran are mixed, the ionized water for adding half in raw material stirs, and is then 47 in temperature
DEG C, humidity fermented 4h under conditions of being 85%RH, obtain dispensing 1；
（2）The ionized water of second half in raw material is taken, the pH of the ionized water is adjusted to 8.7, chitosan dissolving is added, obtains dispensing 2；
（3）Feldspathic sandstone soil sample, modified attapulgite, urea, alkali lignin, dispensing 1 and dispensing 2 are stirred.
Embodiment 3：
A kind of soil heavy mental adsorbent, it is made up of the raw material of following parts by weight：40 parts of peat, 30 parts of feldspathic sandstone soil sample, change
Recessed native 20 parts of property, 8 parts of sawdust, 10 parts of wheat bran, 5 parts of urea, 5 parts of chitosan, 4 parts of alkali lignin, 90 parts of deionized water.
Described modified attapulgite is made by following methods：
13g ATP is dried into 3h at 108 DEG C, dried ATP is added in 105ml toluene, is stirred until homogeneous, then
62 DEG C are heated to, then adds 12mlMPS, constant temperature stirring 5h, then filtered through vacuum filtration machine, washed, after separation of solid and liquid,
3h is dried at 110 DEG C, obtains the recessed soil of MPS, described MPS is methacryloxypropyl trimethoxy silane, and MPS is recessed
Soil is ground to 250 mesh, takes the recessed soil of the MPS after 3g grindings to add in 105ml toluene and stirs, sequentially adds 0.7g acrylic acid
And azodiisobutyronitrile, described azodiisobutyronitrile quality are the 4% of acrylic acid quality, under a nitrogen, with toluene, anhydrous
Ethanol and deionized water washing remove unnecessary acrylic acid, are ground to 250 mesh, obtain modified attapulgite；
Solvent needed for above-described washing is toluene, absolute ethyl alcohol and deionized water.
A kind of preparation method of soil heavy mental adsorbent, described soil heavy mental adsorbent is by below by step system
：
（1）After peat, sawdust and wheat bran are mixed, the ionized water for adding half in raw material stirs, and is then 55 in temperature
DEG C, humidity fermented 5h under conditions of being 90%RH, obtain dispensing 1；
（2）The ionized water of second half in raw material is taken, the pH of the ionized water is adjusted to 9, chitosan dissolving is added, obtains dispensing 2；
（3）Feldspathic sandstone soil sample, modified attapulgite, urea, alkali lignin, dispensing 1 and dispensing 2 are stirred.
Test example 1：
By ZnCl2、CuCl2·2H2O、CdCl2·25H2O、Pb（NO3）2Solution mixes with chemical washed kaolin, according to national soil
The approximate 1.5 times amount simulation of earth environmental quality grade III Standard, i.e. Zn content are 750mg/kg, copper content 600mg/kg, cadmium contain
Measure as 10mg/kg, lead content 750mg/kg, be stirred vigorously uniformly, after balancing 24h at room temperature, 8h, phase are dried at 105 DEG C
Between maintain soil moisture content be 30%, then pulverize and sieve（0.25mm）, and lucifuge stores, and simulating pollution soil is made.
5 parts of the simulating pollution soil of obtained same volume is taken, the volume of the simulating pollution soil is 50cm2, by embodiment 1
In obtained soil heavy mental adsorbent mixed with a simulating pollution soil after to be put into bucket be numbering 1, institute in embodiment 2
It is numbering 2 that obtained soil heavy mental adsorbent, which is put into after being mixed with a simulating pollution soil in bucket, obtained in embodiment 3
Soil heavy mental adsorbent mixed with a simulating pollution soil after to be put into bucket be numbering 3, by chemical soil-repairing agent stone
It is grey mixed with a simulating pollution soil after to be put into bucket be numbering 4, remaining a simulating pollution soil is without any processing to be
Group is put into bucket numbering 5 as a comparison, is placed 10 days.
It will be detected by National Standard Method：The inspection of lead, cadmium is detected according to GB/T 17135-1997；Copper, zinc
Detection be to be detected according to GB/T 17140-1997, experimental result such as following table：
From upper table, soil heavy mental adsorbent of the present invention can more effectively remove soil compared to single chemical repair additive
In heavy metal ion, lead, cadmium, copper, Zn content have reduction in soil, and wherein lead, copper content is greatly lowered, and shows this hair
The bright soil heavy mental adsorbent reduces in soil lead, cadmium, copper, zinc effect clearly.
Claims (3)
1. a kind of soil heavy mental adsorbent, it is characterised in that be made up of the raw material of following parts by weight：Peat 20-40 parts, arsenic
Sandstone soil sample 15-30 parts, modified attapulgite 10-20 parts, sawdust 5-8 parts, wheat bran 6-10 parts, urea 3-5 parts, chitosan 3-5 parts, alkali
Lignin 2-4 parts, deionized water 40-90 parts.
2. a kind of soil heavy mental adsorbent according to claim 1, it is characterised in that described modified attapulgite is by following
Method is made：
12-13g ATP is dried into 2-3h at 105-108 DEG C, dried ATP is added in 100-105ml toluene,
It is stirred until homogeneous, is again heated to 60-62 DEG C, then adds 10-12mlMPS, constant temperature stirring 4-5h, then carry out through being filtered by vacuum machine
After filtering, washing, separation of solid and liquid, 2-3h is dried at 105-110 DEG C, the MPS obtained described in the recessed soil of MPS is methacryloxypropyl
Base propyl trimethoxy silicane）, the recessed soil of MPS is ground to 200-250 mesh, takes the recessed soil of the MPS after 2-3g grindings to add 100-
Stirred in 105ml toluene, sequentially add 0.5-0.7g acrylic acid and azodiisobutyronitrile, described azodiisobutyronitrile
Quality is the 2.5-4% of acrylic acid quality, under a nitrogen, unnecessary third is removed being washed with toluene, absolute ethyl alcohol and deionized water
Olefin(e) acid, 200-250 mesh is ground to, obtains modified attapulgite；
Solvent needed for above-described washing is toluene, absolute ethyl alcohol and deionized water.
A kind of 3. preparation method of soil heavy mental adsorbent according to claim 2, it is characterised in that described soil
Heavy metal absorbent by step by being made below：
（1）After peat, sawdust and wheat bran are mixed, the ionized water for adding half in raw material stirs, and is then 40- in temperature
55 DEG C, humidity fermented 3-5h under conditions of being 80-90%RH, obtain dispensing 1；
（2）The ionized water of second half in raw material is taken, the pH of the ionized water is adjusted to 8.5-9, chitosan dissolving is added, obtains dispensing
2；
（3）Feldspathic sandstone soil sample, modified attapulgite, urea, alkali lignin, dispensing 1 and dispensing 2 are stirred.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309791.6A CN107694532A (en) | 2017-12-11 | 2017-12-11 | A kind of soil heavy mental adsorbent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309791.6A CN107694532A (en) | 2017-12-11 | 2017-12-11 | A kind of soil heavy mental adsorbent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107694532A true CN107694532A (en) | 2018-02-16 |
Family
ID=61186066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309791.6A Pending CN107694532A (en) | 2017-12-11 | 2017-12-11 | A kind of soil heavy mental adsorbent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107694532A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303894A (en) * | 2020-02-19 | 2020-06-19 | 北京联合大学 | Lignin-based composite stabilizer for in-situ remediation of heavy metal pollution in soil and preparation method thereof |
| CN111348974A (en) * | 2020-03-16 | 2020-06-30 | 广州华景建设有限公司 | Novel ecological garden greening soil remediation treatment agent and preparation method thereof |
| WO2022155832A1 (en) * | 2021-01-21 | 2022-07-28 | 中国科学院南京土壤研究所 | Remediation material for reducing cadmium bioavailability in soil and application thereof in passivation remediation for weakly alkaline soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000356A (en) * | 2016-06-16 | 2016-10-12 | 江苏麦阁吸附剂有限公司 | Attapulgite/polyacrylic acid compound heavy metal absorbent and preparation method thereof |
| CN106345431A (en) * | 2016-08-26 | 2017-01-25 | 夏百庆 | Soil heavy mental absorbing agent |
| CN107082722A (en) * | 2017-04-28 | 2017-08-22 | 湖南永清环保研究院有限责任公司 | A kind of heavy metal-passivated calcium silicate fertilizer and preparation method thereof |
| CN107149925A (en) * | 2017-07-13 | 2017-09-12 | 韦卓林 | Heavy metal absorbent prepared by a kind of utilization bog moss and preparation method thereof |
| CN107285399A (en) * | 2017-07-03 | 2017-10-24 | 安徽天顺环保设备股份有限公司 | A kind of filtrate for being used to handle heavy metals in industrial wastewater |
-
2017
- 2017-12-11 CN CN201711309791.6A patent/CN107694532A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000356A (en) * | 2016-06-16 | 2016-10-12 | 江苏麦阁吸附剂有限公司 | Attapulgite/polyacrylic acid compound heavy metal absorbent and preparation method thereof |
| CN106345431A (en) * | 2016-08-26 | 2017-01-25 | 夏百庆 | Soil heavy mental absorbing agent |
| CN107082722A (en) * | 2017-04-28 | 2017-08-22 | 湖南永清环保研究院有限责任公司 | A kind of heavy metal-passivated calcium silicate fertilizer and preparation method thereof |
| CN107285399A (en) * | 2017-07-03 | 2017-10-24 | 安徽天顺环保设备股份有限公司 | A kind of filtrate for being used to handle heavy metals in industrial wastewater |
| CN107149925A (en) * | 2017-07-13 | 2017-09-12 | 韦卓林 | Heavy metal absorbent prepared by a kind of utilization bog moss and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303894A (en) * | 2020-02-19 | 2020-06-19 | 北京联合大学 | Lignin-based composite stabilizer for in-situ remediation of heavy metal pollution in soil and preparation method thereof |
| CN111303894B (en) * | 2020-02-19 | 2021-08-27 | 北京联合大学 | Lignin-based composite stabilizer for in-situ remediation of heavy metal pollution in soil and preparation method thereof |
| CN111348974A (en) * | 2020-03-16 | 2020-06-30 | 广州华景建设有限公司 | Novel ecological garden greening soil remediation treatment agent and preparation method thereof |
| WO2022155832A1 (en) * | 2021-01-21 | 2022-07-28 | 中国科学院南京土壤研究所 | Remediation material for reducing cadmium bioavailability in soil and application thereof in passivation remediation for weakly alkaline soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103894395B (en) | A kind of method that heavy-metal contaminated soil secondary is repaired | |
| CN107116097B (en) | A kind of method for repairing As polluted soil | |
| CN103894407A (en) | Method for repairing heavy metal contaminated soil | |
| CN107694532A (en) | A kind of soil heavy mental adsorbent and preparation method thereof | |
| CN103894397A (en) | Method for carrying out three-level remediation on heavy metal contaminated soil | |
| CN106623379B (en) | Resource recycling method of construction waste and heavy metal contaminated soil remediation agent | |
| CN106147775A (en) | A kind of biochemistry combined soil heavy metal pollution fixed and repaired agent and application | |
| CN103275725B (en) | Chemical fixing agent for heavy metal contaminated soil remediation and preparation and application thereof | |
| CN104056849A (en) | Method for adsorbing and treating heavy metal cadmium in soil | |
| CN104904574B (en) | Regulate and control the method for turfgrass heavy metal accumulation using Tupersan and CNT interlayer | |
| CN102513350A (en) | Composition used for treating soil arsenic pollution, and application method thereof | |
| CN103980907B (en) | Soil heavy metal passivator and preparation method thereof | |
| CN105838379A (en) | Ecological remediation medicament for heavy metal tailing contaminated soil | |
| CN109078972A (en) | Heavy metal contaminated soil remediation material and application method thereof | |
| CN105838382A (en) | Efficient cadmium reduction soil repair agent and application thereof | |
| CN106006998A (en) | Attapulgite/denitrifier composite type wastewater treating agent and preparation method thereof | |
| CN105776796A (en) | Method of reducing heavy metal bio-availability through pig manure pyrolysis and biochar application of pig manure | |
| CN112795383A (en) | Multiple heavy metal compound contaminated soil remediation agent and application method thereof | |
| CN105925268A (en) | Soil restoring agent with heavy metal ion adsorption and immobilization functions, and preparation method thereof | |
| CN204625404U (en) | A kind of Chemical Manufacture sewage disposal device | |
| CN106396308A (en) | Excess activated sludge recycling method | |
| CN104860481B (en) | A kind of method for handling food enterprise sewage | |
| CN105414161A (en) | Remediation method for soil in petroleum-polluted saline and alkali land | |
| CN105331367B (en) | The preparation method of modified paper mill sludge soil heavy metal passivant | |
| CN106186169A (en) | A kind of compound wastewater processes adsorbent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |