CN108404880A - A kind of preparation method of inorganic dephosphorization adsorbent - Google Patents

A kind of preparation method of inorganic dephosphorization adsorbent Download PDF

Info

Publication number
CN108404880A
CN108404880A CN201810524075.8A CN201810524075A CN108404880A CN 108404880 A CN108404880 A CN 108404880A CN 201810524075 A CN201810524075 A CN 201810524075A CN 108404880 A CN108404880 A CN 108404880A
Authority
CN
China
Prior art keywords
mass parts
preparation
inorganic
added
mol
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
Application number
CN201810524075.8A
Other languages
Chinese (zh)
Inventor
凌云
凌天阳
金可心
夏戊君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU YOUJUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co Ltd
Original Assignee
SUZHOU YOUJUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUZHOU YOUJUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co Ltd filed Critical SUZHOU YOUJUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co Ltd
Priority to CN201810524075.8A priority Critical patent/CN108404880A/en
Publication of CN108404880A publication Critical patent/CN108404880A/en
Pending legal-status Critical Current

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
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
    • 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
    • B01J20/22—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
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28009—Magnetic properties
    • 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
    • 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
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • 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
    • C02F2101/105—Phosphorus compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

A kind of preparation method of inorganic dephosphorization adsorbent, belongs to technical field of absorbent.Specific preparation process is as follows：Weigh mesoporous silica molecular sieve drying；Mesopore molecular sieve after drying is added in ferric chloride solution, cerous nitrate solution and manganese sulfate solution, is stood after magnetic agitation；Mixed liquor filters after standing, and filter residue is put into Muffle kiln roasting, is ground after being cooled to room temperature；In fine powder after taking red mud, activated carbon, zirconium oxide and chitosan that grinding is added, deionized water is then added, adjusting pH with NaOH solution is more than 10, impregnates；Soak is filtered, dries under microwave, then grinds, be sealed.Preparation method raw material of the present invention is easy to get, preparation process is environmental-friendly, environmentally protective.The product phosphonium ion adsorption rate of preparation is high, large amount of adsorption and adsorption rate are fast.Inorganic dephosphorization adsorbent prepared by the present invention can adsorb totally 50mg/L phosphorus-containing wastewaters in 1 h, reach the standard for meeting discharge, adsorption rate is up to 95 ~ 98%.

Description

A kind of preparation method of inorganic dephosphorization adsorbent
Technical field
The invention belongs to technical field of absorbent, and in particular to a kind of preparation method of inorganic dephosphorization adsorbent.
Background technology
The eutrophication of water body is one of the great environmental problem that current countries in the world are faced, and phosphorus is to cause water body rich The key nutriment of nutrient laden.Therefore, for conservation of nature water body environment, body eutrophication is prevented, people are increasingly Pay close attention to the phosphorus ligands of phosphorous industrial wastewater and sanitary sewage.Currently, multiple technologies have been used to the removal of phosphorus, such as bioanalysis is changed Learn Coagulation Method, ion-exchange, membrane separation process, artificial swamp method, electrochemical process, absorption method etc..Wherein, absorption method is considered having There is preferable application prospect, since it has many advantages, such as efficient, economic, easy to operate and non-secondary pollution, according to the literature, commonly uses Phosphorus adsorbent have goethite, flyash, diatomite, iron aluminium composite oxide, ferrozirconium composite oxides, rare earth oxide, manganese Oxide etc..But existing dephosphorization adsorbent function and effect are slow, adsorbance is small, it is also necessary to be improved again.
Invention content
The technical issues of solution：In view of the above technical problems, the present invention provides a kind of preparation side of inorganic dephosphorization adsorbent Method has the high product phosphonium ion adsorption rate that raw material is easy to get, preparation process is environmental-friendly, prepares, large amount of adsorption and adsorbs speed Spend the advantages that fast.
Technical solution：A kind of preparation method of inorganic dephosphorization adsorbent, the preparation method comprises the following steps：
Step 1 weighs 2~6 mass parts mesoporous silica molecular sieves dry 6~8h at a temperature of 90~120 DEG C；
20~30 mass parts 1.5mol/L ferric chloride solutions, 10~15 matter are added in mesopore molecular sieve after step 2 will be dried It measures in part 0.8mol/L cerous nitrate solutions and 15~35 mass parts 1mol/L manganese sulfate solutions, it is quiet after 30~45min of magnetic agitation Set 4~6h；
Mixed liquor filters after step 3 will be stood, and filter residue is put into Muffle furnace and roasts 1~2h for 140~155 DEG C, then cold But to being ground after room temperature, 80~120 mesh sieve is crossed；
Step 4 weighs 2~4 mass parts red muds, 1~3 mass parts activated carbon, 0.5~0.8 mass parts zirconium oxide and 2~4 Mass parts chitosan is added in the fine powder after step 3 grinding, 40~50 mass parts deionized waters is then added, with 5mol/L's NaOH solution adjusts pH and is more than 10, impregnates 2~4h；
Step 5 filters soak, and 6~10min is dried at 200~400W of microwave power, is then ground, excessively 200~ 300 mesh sieve, and are sealed.
Preferably, the model MCM41 of mesopore molecular sieve described in the step 1.
Preferably, weighing 4 mass parts mesoporous silica molecular sieves dry 7h at a temperature of 100 DEG C in the step 1.
Preferably, mesopore molecular sieve 25 mass parts 1.5mol/L iron chloride of addition are molten after will be dry in the step 2 In liquid, 12 mass parts 0.8mol/L cerous nitrate solutions and 20 mass parts 1mol/L manganese sulfate solutions, stood after magnetic agitation 40min 5h。
Preferably, mixed liquor filters after being stood in the step 3, filter residue is put into 150 DEG C of roastings in Muffle furnace 1.5h is ground after then cooling to room temperature, sieves with 100 mesh sieve.
Preferably, weighing 3 mass parts red muds, 2 mass parts activated carbons, 0.6 mass parts zirconium oxide and 3 in the step 4 Mass parts chitosan is added in the fine powder after step 3 grinding, 45 mass parts deionized waters is then added, with the NaOH of 5mol/L Solution adjusts pH and is more than 10, impregnates 3h.
Preferably, filtering soak in the step 5,8min is dried at microwave power 300W, is then ground, mistake 250 mesh sieve, and are sealed.
Advantageous effect：Preparation method raw material of the present invention is easy to get, preparation process is environmental-friendly, environmentally protective.It prepares Product phosphonium ion adsorption rate height, large amount of adsorption and adsorption rate are fast.By carrying out magnetic modification to mesopore molecular sieve, then in conjunction with Zirconium oxide is modified the synergistic function of mesoporous silica molecular sieve with red mud, activated carbon, chitosan, magnetic, and the present invention is prepared inorganic Dephosphorization adsorbent can adsorb totally 50mg/L phosphorus-containing wastewaters in 1h, reach the standard for meeting discharge, adsorption rate is up to 95 ~98%.
Specific implementation mode
Embodiment 1
A kind of preparation method of inorganic dephosphorization adsorbent, the preparation method comprises the following steps：
Step 1 weighs 2 mass parts mesoporous silica molecular sieves dry 6h, model of the mesopore molecular sieve at a temperature of 90 DEG C For MCM41.
20 mass parts 1.5mol/L ferric chloride solutions, 10 mass parts are added in mesopore molecular sieve after step 2 will be dried In 0.8mol/L cerous nitrate solutions and 15 mass parts 1mol/L manganese sulfate solutions, 4h is stood after magnetic agitation 30min.
Mixed liquor filters after step 3 will be stood, and filter residue is put into 140 DEG C of roasting 1h in Muffle furnace, then cools to room temperature After be ground, cross 80 mesh sieve.
Step 4 weighs 2 mass parts red muds, 1 mass parts activated carbon, 0.5 mass parts zirconium oxide and 2 mass parts chitosans and adds Enter in the fine powder after step 3 grinding, 40 mass parts deionized waters are then added, adjusting pH with the NaOH solution of 5mol/L is more than 10, impregnate 2h.
Step 5 filters soak, and 6min is dried at microwave power 200W, is then ground, and crosses 200 mesh sieve, and sealing is protected It deposits.
Embodiment 2
A kind of preparation method of inorganic dephosphorization adsorbent, the preparation method comprises the following steps：
Step 1 weighs 6 mass parts mesoporous silica molecular sieves dry 8h, type of the mesopore molecular sieve at a temperature of 120 DEG C Number be MCM41.
30 mass parts 1.5mol/L ferric chloride solutions, 15 mass parts are added in mesopore molecular sieve after step 2 will be dried In 0.8mol/L cerous nitrate solutions and 35 mass parts 1mol/L manganese sulfate solutions, 6h is stood after magnetic agitation 45min.
Mixed liquor filters after step 3 will be stood, and filter residue is put into 155 DEG C of roasting 2h in Muffle furnace, then cools to room temperature After be ground, cross 120 mesh sieve.
Step 4 weighs 4 mass parts red muds, 3 mass parts activated carbons, 0.8 mass parts zirconium oxide and 4 mass parts chitosans and adds Enter in the fine powder after step 3 grinding, 50 mass parts deionized waters are then added, adjusting pH with the NaOH solution of 5mol/L is more than 10, impregnate 4h.
Step 5 filters soak, and 10min is dried at microwave power 400W, is then ground, and crosses 300 mesh sieve, and sealing is protected It deposits.
Embodiment 3
A kind of preparation method of inorganic dephosphorization adsorbent, the preparation method comprises the following steps：
Step 1 weighs 4 mass parts mesoporous silica molecular sieves dry 7h, type of the mesopore molecular sieve at a temperature of 100 DEG C Number be MCM41.
25 mass parts 1.5mol/L ferric chloride solutions, 12 mass parts are added in mesopore molecular sieve after step 2 will be dried In 0.8mol/L cerous nitrate solutions and 20 mass parts 1mol/L manganese sulfate solutions, 5h is stood after magnetic agitation 40min.
Mixed liquor filters after step 3 will be stood, and filter residue is put into 150 DEG C of roasting 1.5h in Muffle furnace, is subsequently cooled to room It is ground, sieves with 100 mesh sieve after temperature.
Step 4 weighs 3 mass parts red muds, 2 mass parts activated carbons, 0.6 mass parts zirconium oxide and 3 mass parts chitosans and adds Enter in the fine powder after step 3 grinding, 45 mass parts deionized waters are then added, adjusting pH with the NaOH solution of 5mol/L is more than 10, impregnate 3h.
Step 5 filters soak, and 8min is dried at microwave power 300W, is then ground, and crosses 250 mesh sieve, and sealing is protected It deposits.
Comparative example 1
With embodiment 3, difference lies in do not add zirconium oxide, specific preparation process is as follows：
Step 1 weighs 4 mass parts mesoporous silica molecular sieves dry 7h, type of the mesopore molecular sieve at a temperature of 100 DEG C Number be MCM41.
25 mass parts 1.5mol/L ferric chloride solutions, 12 mass parts are added in mesopore molecular sieve after step 2 will be dried In 0.8mol/L cerous nitrate solutions and 20 mass parts 1mol/L manganese sulfate solutions, 5h is stood after magnetic agitation 40min.
Mixed liquor filters after step 3 will be stood, and filter residue is put into 150 DEG C of roasting 1.5h in Muffle furnace, is subsequently cooled to room It is ground, sieves with 100 mesh sieve after temperature.
After step 4 weighs 3 mass parts red muds, 2 mass parts activated carbons and the addition step 3 grinding of 3 mass parts chitosans In fine powder, 45 mass parts deionized waters are then added, adjusting pH with the NaOH solution of 5mol/L is more than 10, impregnates 3h.
Step 5 filters soak, and 8min is dried at microwave power 300W, is then ground, and crosses 250 mesh sieve, and sealing is protected It deposits.
Phosphorous (in terms of the P elements) aqueous solution of 50mg/L is prepared with deionized water.In 250mL conical flasks, it is added 100mL phosphorus solutions, with NaOH and HCl come adjust solution ph be 5.6, accurately weigh and 0.2g Examples 1 to 3 and comparison be added Absorbent powder prepared by example 1, mixed liquor is shaken under the conditions of 25 DEG C, 150r/min and is shaken up, and the anti-light splitting light of molybdenum antimony is used after 1h Degree method measures phosphorus concentration, and adsorbance is calculated as follows：
Q in formulaeIt is equilibrium adsorption capacity, mg/g；c0It is the initial concentration of solution, mg/L；ceBe absorption after solution balance it is dense Degree, mg/L；V is the volume of solution, L；M is the quality that adsorbent is added, g.
Dephosphorizing rate η (%) calculation formula is as follows：
Test result is as follows for product dephosphorizing rate prepared by Examples 1 to 3 and comparative example 1：
Dephosphorizing rate/%
Embodiment 1 95
Embodiment 2 97
Embodiment 3 98
Comparative example 1 89

Claims (7)

1. a kind of preparation method of inorganic dephosphorization adsorbent, which is characterized in that the preparation method comprises the following steps：
Step 1 weighs 2 ~ 6 mass parts mesoporous silica molecular sieves dry 6 ~ 8 h at a temperature of 90 ~ 120 DEG C；
20 ~ 30 mass parts, 1.5 mol/L ferric chloride solutions, 10 ~ 15 mass parts are added in mesopore molecular sieve after step 2 will be dried In 1 mol/L manganese sulfate solutions of 0.8 mol/L cerous nitrate solutions and 15 ~ 35 mass parts, after 30 ~ 45 min of magnetic agitation stand 4 ~ 6 h；
Mixed liquor filters after step 3 will be stood, and filter residue is put into 140 ~ 155 DEG C of 1 ~ 2 h of roasting in Muffle furnace, is subsequently cooled to room It is ground after temperature, crosses 80 ~ 120 mesh sieve；
Step 4 weighs 2 ~ 4 mass parts red muds, 1 ~ 3 mass parts activated carbon, 0.5 ~ 0.8 mass parts zirconium oxide and 2 ~ 4 mass parts shells Glycan is added in the fine powder after step 3 grinding, 40 ~ 50 mass parts deionized waters is then added, with the NaOH solution of 5 mol/L It adjusts pH and is more than 10, impregnate 2 ~ 4 h；
Step 5 filters soak, and 6 ~ 10 min are dried at 200 ~ 400W of microwave power, are then ground, and crosses 200 ~ 300 mesh Sieve, is sealed.
2. a kind of preparation method of inorganic dephosphorization adsorbent according to claim 1, which is characterized in that in the step 1 The model MCM41 of the mesopore molecular sieve.
3. a kind of preparation method of inorganic dephosphorization adsorbent according to claim 1, which is characterized in that in the step 1 Weigh 4 mass parts mesoporous silica molecular sieves dry 7 h at a temperature of 100 DEG C.
4. a kind of preparation method of inorganic dephosphorization adsorbent according to claim 1, which is characterized in that in the step 2 It is molten that 25 mass parts, 1.5 mol/L ferric chloride solutions, 12 mass parts, 0.8 mol/L cerous nitrates is added in mesopore molecular sieve after will be dry In 1 mol/L manganese sulfate solutions of liquid and 20 mass parts, 5 h are stood after 40 min of magnetic agitation.
5. a kind of preparation method of inorganic dephosphorization adsorbent according to claim 1, which is characterized in that in the step 3 Mixed liquor filters after standing, and filter residue is put into 150 DEG C of 1.5 h of roasting in Muffle furnace, is ground after then cooling to room temperature, mistake 100 mesh sieve.
6. a kind of preparation method of inorganic dephosphorization adsorbent according to claim 1, which is characterized in that in the step 4 After weighing 3 mass parts red muds, 2 mass parts activated carbons, 0.6 mass parts zirconium oxide and the addition step 3 grinding of 3 mass parts chitosans Fine powder in, 45 mass parts deionized waters are then added, adjusting pH with the NaOH solution of 5 mol/L is more than 10, impregnates 3 h.
7. a kind of preparation method of inorganic dephosphorization adsorbent according to claim 1, which is characterized in that in the step 5 Soak is filtered, 8 min are dried at microwave power 300W, are then ground, 250 mesh sieve is crossed, is sealed.
CN201810524075.8A 2018-05-28 2018-05-28 A kind of preparation method of inorganic dephosphorization adsorbent Pending CN108404880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810524075.8A CN108404880A (en) 2018-05-28 2018-05-28 A kind of preparation method of inorganic dephosphorization adsorbent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810524075.8A CN108404880A (en) 2018-05-28 2018-05-28 A kind of preparation method of inorganic dephosphorization adsorbent

Publications (1)

Publication Number Publication Date
CN108404880A true CN108404880A (en) 2018-08-17

Family

ID=63140698

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810524075.8A Pending CN108404880A (en) 2018-05-28 2018-05-28 A kind of preparation method of inorganic dephosphorization adsorbent

Country Status (1)

Country Link
CN (1) CN108404880A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110694585A (en) * 2019-09-23 2020-01-17 北京工业大学 Preparation method of zirconium modified red mud phosphorus removal adsorbent
CN111039658A (en) * 2019-12-31 2020-04-21 广东省水利水电科学研究院 Phosphorus removal ceramsite and preparation method thereof
CN112973635A (en) * 2021-03-23 2021-06-18 江苏嘉盛旺环境科技有限公司 Preparation process of sewage dephosphorization activated carbon
CN116282339A (en) * 2023-05-09 2023-06-23 佛山科学技术学院 Groundwater treatment method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050120877A1 (en) * 2003-12-08 2005-06-09 Dingjun Wu Purification of hydride gases
CN104549173A (en) * 2015-02-06 2015-04-29 中国环境科学研究院 Preparation method and application of phosphorus-adsorbing material used in sewage
CN105498686A (en) * 2014-09-23 2016-04-20 中国石油化工股份有限公司 Method for improving adsorption performance through modification on molecular sieve
CN106076252A (en) * 2016-06-15 2016-11-09 北京建筑大学 A kind of method utilizing waterworks sludge preparation denitrogenation dephosphorizing adsorbent simultaneously
CN107583673A (en) * 2017-09-19 2018-01-16 同济大学 Modified anion resin material and its preparation method and application

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050120877A1 (en) * 2003-12-08 2005-06-09 Dingjun Wu Purification of hydride gases
CN105498686A (en) * 2014-09-23 2016-04-20 中国石油化工股份有限公司 Method for improving adsorption performance through modification on molecular sieve
CN104549173A (en) * 2015-02-06 2015-04-29 中国环境科学研究院 Preparation method and application of phosphorus-adsorbing material used in sewage
CN106076252A (en) * 2016-06-15 2016-11-09 北京建筑大学 A kind of method utilizing waterworks sludge preparation denitrogenation dephosphorizing adsorbent simultaneously
CN107583673A (en) * 2017-09-19 2018-01-16 同济大学 Modified anion resin material and its preparation method and application

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
仉春华等: "质子化壳聚糖的除磷性能", 《环境工程学报》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110694585A (en) * 2019-09-23 2020-01-17 北京工业大学 Preparation method of zirconium modified red mud phosphorus removal adsorbent
CN111039658A (en) * 2019-12-31 2020-04-21 广东省水利水电科学研究院 Phosphorus removal ceramsite and preparation method thereof
CN112973635A (en) * 2021-03-23 2021-06-18 江苏嘉盛旺环境科技有限公司 Preparation process of sewage dephosphorization activated carbon
CN112973635B (en) * 2021-03-23 2023-08-18 江苏嘉盛旺环境科技有限公司 Preparation process of sewage dephosphorization activated carbon
CN116282339A (en) * 2023-05-09 2023-06-23 佛山科学技术学院 Groundwater treatment method
CN116282339B (en) * 2023-05-09 2023-09-26 佛山科学技术学院 Groundwater treatment method

Similar Documents

Publication Publication Date Title
CN103212364B (en) Ferro-manganese composite oxide as well as preparation method and application thereof in removing arsenic in water
CN108404880A (en) A kind of preparation method of inorganic dephosphorization adsorbent
CN102527347B (en) Magnetic chitosan/cationic surface active agent modified zeolite adsorbent and preparation method and application thereof
CN101797496B (en) Preparation method of inorganic-organic compound-type adsorbent based on clinoptilolite and application for removing Cr(VI) in industrial waste water
CN102190345B (en) Method for enriching low-concentration heavy metal in water by recyclable magnesium hydroxide adsorbent
CN102989427B (en) Enteromorpha absorbent and preparation technology thereof
CN104289185A (en) Granular filtering material for adsorbing and removing heavy metals in water and preparation method thereof
CN105289493A (en) Ferromanganese modified straw active carbon adsorbent for As (III) adsorption, and applications thereof
CN105771876B (en) The preparation method of modified eggshell magnetic adsorbent and the method for removing heavy metal in water removal
CN106915972A (en) A kind of modified coal ash haydite and its preparation method and application
CN109111207B (en) Porous phosphorus removal ceramsite and preparation method thereof
CN110698174A (en) Lightweight sludge ceramsite, and preparation method and application thereof
CN105457597A (en) Graphene/silicon dioxide/nano zero-valent iron composite as well as preparation method and application thereof
CN106824072A (en) Magnetic adsorbent and preparation method and application
CN102580666B (en) Modified pumice for purifying heavy metal sewage and preparation method and application of modified pumice
CN104190360A (en) Oxidation-load iron modified active carbon water treatment adsorbent and preparation method thereof
CN106824069A (en) Preparation method for processing the rear-earth-doped iron Carbon Materials of arsenic-containing waste water
CN106582509A (en) Heavy metal ion porous adsorbing material and preparation method thereof
CN106622109A (en) Preparation method of lanthanum modified red mud chromium removing adsorbent
CN107459096A (en) A kind of method of gill fungus bacterium matrix activated carbon adsorbent processing cadmium wastewater
CN104645932A (en) Iron and manganese oxide composite modified zeolite as well as preparation method and application thereof
CN109967041A (en) A kind of bimetallic-modified magnetic bio activated carbon adsorbent and preparation method thereof is applied in wastewater treatment
CN105771878A (en) Ferro-manganese modified aluminum oxide adsorbent and application thereof in As (III) adsorption
CN114713184B (en) Heavy metal adsorbent for removing cadmium ions in water body and preparation method and application thereof
CN111545163A (en) Adsorbent for heavy metal wastewater treatment 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

Application publication date: 20180817

RJ01 Rejection of invention patent application after publication