CN105771896A - Modified activated carbon compound adsorption treatment material for wastewater treatment - Google Patents
Modified activated carbon compound adsorption treatment material for wastewater treatment Download PDFInfo
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- CN105771896A CN105771896A CN201610250155.XA CN201610250155A CN105771896A CN 105771896 A CN105771896 A CN 105771896A CN 201610250155 A CN201610250155 A CN 201610250155A CN 105771896 A CN105771896 A CN 105771896A
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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
- 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
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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
- 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
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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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (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
The invention discloses a modified activated carbon compound adsorption treatment material for wastewater treatment. The material comprises the following raw materials in mass percent: 30 to 50 percent of modified activated carbon, 10 to 25 percent of granular expanded graphite, 5 to 10 percent of glass beads, 5 to 15 percent of hollow brick particles, and 15 to 35 percent of a composite flocculant aid. According to the compound adsorption treatment material, modified activated carbon is adopted for being compounded with the granular expanded graphite, the glass beads, the hollow brick particles and the composite flocculant aid according to reasonable mass ratio, so that heavy metal ions and organic and inorganic pollutants in raw water can be effectively removed and the contents of COD, SS, BOD and sulfide in the raw water can be reduced; the raw materials adopted are nontoxic, have chemical inertness, and cannot cause secondary pollution in water; the raw materials adopted can be reused after regeneration treatment, so that the wastewater treatment cost is greatly reduced, and the material is beneficial to the development of the application of activated carbon to the wastewater treatment industry.
Description
Technical field
The present invention relates to wastewater treatment field of material technology, the modified activated carbon composite adsorption being specifically related to a kind of use in waste water treatment processes material.
Background technology
At present in the advanced treating and trade effluent recycling project of Drinking Water, usually can encounter how economic, heavy metal ion that is that simply and effectively remove in former water and organic and inorganic pollutant, reduce the problems such as the COD in former water and abnormal flavour.Activated carbon is to utilize absorption method water to carry out processing one of conventional adsorbent, its pore structure is flourishing, surface area is huge. there is very strong physical absorption and chemisorbed function, acticarbon make use of the surface area that it is huge just, pollutant component is adsorbed in the micropore of activated carbon, the heavy metal such as chromium, hydrargyrum and the Organic substance such as phenol, cyanogen are had preferably adsorptivity.But activated carbon is expensive, and waste water treatment efficiency has much room for improvement；Existing acticarbon is not satisfactory to the reduction regulation effect of SS, the BOD etc. in waste water, and these reasons limit activated carbon application in the treatment of waste water all to a certain extent.
Summary of the invention
Not enough for prior art, the invention provides the modified activated carbon composite adsorption of a kind of use in waste water treatment and process material, be effectively improved the adsorption efficiency of activated carbon, reduce processing cost the effective problem such as SS, BOD in reduction waste water.
This invention address that the technical scheme that above-mentioned technical problem adopts is: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including following raw material: modified activated carbon, grain expansion graphite, glass microballoon, hollow brick granule and composite flocculation auxiliary agent；
The mass percent of described raw material is: modified activated carbon 30 ~ 50%, grain expansion graphite 10 ~ 25%, glass microballoon 5 ~ 10%, hollow brick granule 5 ~ 15%, composite flocculation auxiliary agent 15 ~ 35%；
The preparation method of described modified activated carbon:
1) pretreatment: take a certain amount of common coal mass active carbon, being crushed to granularity is 0.5-5mm；
2) acidleach processes: be placed in container by step 1 gained activated carbon granule, and adding concentration is the HCl solution of 10%, solid-to-liquid ratio 3 ~ 5:1, impregnates 2 ~ 3h under room temperature, washes and freeze-day with constant temperature 0.5 ~ 1h at 120 DEG C after dipping；
3) alkali leaching processes: be placed in container by the activated carbon granule processed through acidleach, and adding concentration is the NaOH solution of 8%, solid-to-liquid ratio 3 ~ 5:1, impregnates 3 ~ 5h under room temperature, washes and freeze-day with constant temperature 1 ~ 2h at 120 DEG C, obtain modified activated carbon after dipping.
Further, the granularity of described grain expansion graphite is 0.05 ~ 0.5mm.
Further, the granularity of described hollow brick granule is 0.1 ~ 2mm.
Further, described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts ratio is 1 ~ 3:1.
Described modified activated carbon, grain expansion graphite, glass microballoon, hollow brick granule and composite flocculation auxiliary agent had both obtained the composite adsorption for wastewater treatment of the present invention by evenly mixing and had processed material, and the consumption of every L waste water is that namely 100 ~ 300mg reaches excellent treatment effect.Process that the composite adsorbing material after sewage uses is scrubbed, soak, filter, can reuse after drying and other steps, during recycling, only need to add the composite flocculation agent of described mass percent.
The activated carbon processed for water should have the characteristic that adsorption rate is fast, adsorption capacity is big, mechanical strength is good.The adsorption capacity of activated carbon is main relevant with the specific surface area of activated carbon, and specific surface area is more big, and micropore quantity is more many, can be adsorbed on the adsorbate on porous wall more many.Adsorption rate is main relevant with pore distribution, and the activated carbon that water processes requires that transitional pore (radius 20 ~ 1000A) is flourishing, is conducive to adsorbate to spread in minute aperture, improves adsorption efficiency.Conventional activated carbon specific surface area is relatively larger, micropore quantity is relatively more, thus be accordingly used in waste water adsorption treatment and can obtain good effect, but owing to activated carbon price is higher, cost for wastewater treatment can be improved as waste water treating agent undoubtedly, which greatly limits activated carbon application in the treatment of waste water.
The present invention adopts the common coal mass active carbon of low cost after soda acid alternately modified processes, and can remove soda acid solable matter in activated carbon granule, and simultaneously modified activated carbon pore size structure remains unchanged, and specific surface area is from 720m2/ g is increased to 1300m2/ g, average pore radius is 60 to 100A, has adsorption effect more preferably than conventional normal activated carbon, when obtaining identical adsorption effect, adopts the consumption that makes of modified activated carbon can reduce about half, reduces the cost of wastewater treatment.
The composite adsorption of the present invention processes material and adopts modified activated carbon composite with grain expansion graphite, glass microballoon, hollow brick granule and composite flocculation auxiliary agent compound, rational quality proportioning is obtained through experiment, raw materials used nontoxic and there is chemical inertness, water does not result in secondary pollution；Raw materials used can be recycled after Regeneration Treatment, this greatly reduces cost for wastewater treatment, contributes to the application expanding activated carbon in waste water treatment industry；The composite adsorption of the present invention processes material can remove the heavy metal ion in former water and organic and inorganic pollutant effectively, reduces the content etc. of COD, SS, the BOD in former water and sulfide.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including following raw material: modified activated carbon, grain expansion graphite, glass microballoon, hollow brick granule and composite flocculation auxiliary agent；The mass percent of described raw material is: modified activated carbon 40%, grain expansion graphite 20%, glass microballoon 7%, hollow brick granule 10%, composite flocculation auxiliary agent 23%；
The preparation method of described modified activated carbon: 1) pretreatment: taking a certain amount of common coal mass active carbon, being crushed to granularity is 0.5-5mm；2) acidleach processes: be placed in container by step 1 gained activated carbon granule, and adding concentration is the HCl solution of 10%, solid-to-liquid ratio 4:1, impregnates 2.5h under room temperature, washes and freeze-day with constant temperature 45min at 120 DEG C after dipping；3) alkali leaching processes: be placed in container by the activated carbon granule processed through acidleach, and adding concentration is the NaOH solution of 8%, solid-to-liquid ratio 4:1, impregnates 4h under room temperature, washes and freeze-day with constant temperature 1.5h at 120 DEG C, obtain modified activated carbon after dipping.
Further, the granularity of described grain expansion graphite is 0.05 ~ 0.5mm；The granularity of described hollow brick granule is 0.1 ~ 2mm；Described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts is than for 2:1.
Embodiment 2: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including the raw material of following mass percent: modified activated carbon 30%, grain expansion graphite 25%, glass microballoon 10%, hollow brick granule 15%, composite flocculation auxiliary agent 20%；The preparation method of described modified activated carbon, its concrete steps are with embodiment 1.
Further, the granularity of described grain expansion graphite is 0.05 ~ 0.5mm；The granularity of described hollow brick granule is 0.1 ~ 2mm；Described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts is than for 1:1.
Embodiment 3: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including the raw material of following mass percent: modified activated carbon 50%, grain expansion graphite 10%, glass microballoon 5%, hollow brick granule 5%, composite flocculation auxiliary agent 30%；The preparation method of described modified activated carbon, its concrete steps are with embodiment 1.
Further, the granularity of described grain expansion graphite is 0.05 ~ 0.5mm；The granularity of described hollow brick granule is 0.1 ~ 2mm；Described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts is than for 3:1.
Embodiment 4: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including the raw material of following mass percent: modified activated carbon 35%, grain expansion graphite 20%, glass microballoon 8%, hollow brick granule 10%, composite flocculation auxiliary agent 27%；The preparation method of described modified activated carbon, its concrete steps are with embodiment 1.
Further, the granularity of described grain expansion graphite is 0.05 ~ 0.5mm；The granularity of described hollow brick granule is 0.1 ~ 2mm；Described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts is than for 2:1.
Embodiment 5: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including the raw material of following mass percent: modified activated carbon 45%, grain expansion graphite 15%, glass microballoon 6%, hollow brick granule 8%, composite flocculation auxiliary agent 26%；The preparation method of described modified activated carbon, its concrete steps are with embodiment 1.
Further, the granularity of described grain expansion graphite is 0.05 ~ 0.5mm；The granularity of described hollow brick granule is 0.1 ~ 2mm；Described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts is than for 2:1.
Comparative example: the modified activated carbon composite adsorption of a kind of use in waste water treatment processes material, including the raw material of following mass percent: normal activated carbon 40%, grain expansion graphite 20%, glass microballoon 7%, hollow brick granule 10%, composite flocculation auxiliary agent 23%.
Further, described normal activated carbon granularity is 0.05 ~ 0.5mm；The granularity of described grain expansion graphite is 0.05 ~ 0.5mm；The granularity of described hollow brick granule is 0.1 ~ 2mm；Described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts is than for 1:1.
Composite adsorption in order to measure the present invention processes the material treatment effect to sewage, the industrial wastewater taking 1L carries out adsorption treatment for processing water sample, processing method is: the composite adsorption adding the present invention under room temperature processes material to waste water, after agitated 3 ~ 5min, stands half an hour more than.Adopting common commercially available activated carbon to substitute the modified activated carbon of the present invention, the composite adsorption that other proportioning raw materials and embodiment 1 are identical processes material 1 to carry out identical water sample and processes as a comparison case；Common commercially available activated carbon (granularity is 0.05 ~ 0.5mm) is adopted 2 to carry out identical water sample and process as a comparison case.Concrete outcome is as shown in the table:
By the test result of upper table it can be confirmed that modified activated carbon has more excellent adsorption effect compared with normal activated carbon, increase its specific surface area by the activated carbon that soda acid is modified, thus having the adsorption effect that normal activated carbon is incomparable；Compared with existing conventional normal activated carbon, the composite adsorption of the present invention processes material and has more excellent process sewage effect, especially the improvement of sewage BOD, SS, sulfide and petroleum components etc. had good treatment effect, and the process materials'use method of the present invention is easy, reuse through Regeneration Treatment back cover, greatly reduce the use cost of activated carbon.
The foregoing is only present pre-ferred embodiments, all equalizations done according to the present patent application the scope of the claims change or modify, and all should belong to the covering scope of the present invention.
Claims (4)
1. the modified activated carbon composite adsorption of a use in waste water treatment processes material, it is characterised in that include following raw material: modified activated carbon, grain expansion graphite, glass microballoon, hollow brick granule and composite flocculation auxiliary agent；
The mass percent of described raw material is: modified activated carbon 30 ~ 50%, grain expansion graphite 10 ~ 25%, glass microballoon 5 ~ 10%, hollow brick granule 5 ~ 15%, composite flocculation auxiliary agent 15 ~ 35%；
The preparation method of described modified activated carbon:
1) pretreatment: take a certain amount of common coal mass active carbon, being crushed to granularity is 0.5-5mm；
2) acidleach processes: be placed in container by step 1 gained activated carbon granule, and adding concentration is the HCl solution of 10%, solid-to-liquid ratio 3 ~ 5:1, impregnates 2 ~ 3h under room temperature, washes and freeze-day with constant temperature 0.5 ~ 1h at 120 DEG C after dipping；
3) alkali leaching processes: be placed in container by the activated carbon granule processed through acidleach, and adding concentration is the NaOH solution of 8%, solid-to-liquid ratio 3 ~ 5:1, impregnates 3 ~ 5h under room temperature, washes and freeze-day with constant temperature 1 ~ 2h at 120 DEG C, obtain modified activated carbon after dipping.
2. process material according to the modified activated carbon composite adsorption of claim 1 use in waste water treatment, it is characterised in that: the granularity of described described grain expansion graphite is 0.05 ~ 0.5mm.
3. process material according to the modified activated carbon composite adsorption of claim 1 use in waste water treatment, it is characterised in that: the granularity of described hollow brick granule is 0.1 ~ 2mm.
4. process material according to the modified activated carbon composite adsorption of claim 1 use in waste water treatment, it is characterised in that: described composite flocculation auxiliary agent is PAMC and Hydrin, and its mass parts ratio is 1 ~ 3:1.
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| CN201610250155.XA CN105771896A (en) | 2016-04-21 | 2016-04-21 | Modified activated carbon compound adsorption treatment material for wastewater treatment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277358A (en) * | 2016-08-29 | 2017-01-04 | 湖北宜化集团有限责任公司 | The flocculant of a kind of quasi-east coal chemical industrial waste water process and processing method thereof |
| CN106422528A (en) * | 2016-09-20 | 2017-02-22 | 芜湖成德龙过滤设备有限公司 | Expanded graphite filter material and preparation method thereof |
| CN106621574A (en) * | 2016-09-20 | 2017-05-10 | 芜湖成德龙过滤设备有限公司 | Expanded graphite filter material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524609A (en) * | 2003-09-18 | 2004-09-01 | 武汉理工大学 | Composite material comprising expandable graphite and phenolic resin group active carbon |
| CN1986434A (en) * | 2006-12-18 | 2007-06-27 | 南京工业大学 | Granular electrode catalyst stuffing for 3D electrode reactor and its preparing method |
| CN101439280A (en) * | 2008-12-09 | 2009-05-27 | 江苏工业学院 | Expanded graphite-based composite material and preparation method thereof |
| CN101452041A (en) * | 2008-12-26 | 2009-06-10 | 湖北省电力试验研究院 | Electrical power distribution network single-phase earth fault type and phase distinguishing method |
-
2016
- 2016-04-21 CN CN201610250155.XA patent/CN105771896A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524609A (en) * | 2003-09-18 | 2004-09-01 | 武汉理工大学 | Composite material comprising expandable graphite and phenolic resin group active carbon |
| CN1986434A (en) * | 2006-12-18 | 2007-06-27 | 南京工业大学 | Granular electrode catalyst stuffing for 3D electrode reactor and its preparing method |
| CN101439280A (en) * | 2008-12-09 | 2009-05-27 | 江苏工业学院 | Expanded graphite-based composite material and preparation method thereof |
| CN101452041A (en) * | 2008-12-26 | 2009-06-10 | 湖北省电力试验研究院 | Electrical power distribution network single-phase earth fault type and phase distinguishing method |
Non-Patent Citations (7)
| Title |
|---|
| 刘守新等: ""表面酸碱2步改性对活性炭吸附Cr(VI)的影响"", 《环境科学》 * |
| 刘方等: "《高分子材料与工程专业实验教程》", 31 August 2012 * |
| 李光浩等: ""空心砖对废水中污染物吸附能力的研究"", 《大连民族学院学报》 * |
| 李圭白等: "《水质工程学》", 31 July 2005 * |
| 梁霞等: ""活性炭改性方法及其在水处理中的应用"", 《水处理技术》 * |
| 祁鲁梁等: "《水处理药剂及材料使用手册》", 31 March 2000 * |
| 陈秋: ""改性聚丙烯酰胺类絮凝剂的合成及应用研究"", 《中国优秀硕士论文全文数据库 工程科技I辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277358A (en) * | 2016-08-29 | 2017-01-04 | 湖北宜化集团有限责任公司 | The flocculant of a kind of quasi-east coal chemical industrial waste water process and processing method thereof |
| CN106422528A (en) * | 2016-09-20 | 2017-02-22 | 芜湖成德龙过滤设备有限公司 | Expanded graphite filter material and preparation method thereof |
| CN106621574A (en) * | 2016-09-20 | 2017-05-10 | 芜湖成德龙过滤设备有限公司 | Expanded graphite filter material and preparation method thereof |
| CN106621574B (en) * | 2016-09-20 | 2019-06-21 | 芜湖成德龙过滤设备有限公司 | Expanded graphite filtering material and preparation method thereof |
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