CN105148833A - Modified compound kieselguhr adsorbing agent for treating industrial wastewater and preparation method - Google Patents
Modified compound kieselguhr adsorbing agent for treating industrial wastewater and preparation method Download PDFInfo
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 150000001875 compounds Chemical class 0.000 title claims abstract description 27
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 31
- 229960000892 attapulgite Drugs 0.000 claims abstract description 18
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 18
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 17
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 230000004048 modification Effects 0.000 claims description 44
- 238000012986 modification Methods 0.000 claims description 44
- 230000008569 process Effects 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- -1 quaternary ammonium salt-modified diatomite Chemical class 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 3
- 235000015598 salt intake Nutrition 0.000 claims description 2
- 238000011175 product filtration Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 239000011777 magnesium Substances 0.000 abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 2
- 231100001240 inorganic pollutant Toxicity 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 33
- 239000003921 oil Substances 0.000 description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000001179 sorption measurement Methods 0.000 description 9
- 239000011148 porous material Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000003814 drug Substances 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- LXCYSACZTOKNNS-UHFFFAOYSA-N diethoxy(oxo)phosphanium Chemical compound CCO[P+](=O)OCC LXCYSACZTOKNNS-UHFFFAOYSA-N 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- DNNIMMTYNOWWHP-UHFFFAOYSA-N C1=CC=C(C=C1)S(=O)(=O)OCOP(O)(O)=O Chemical compound C1=CC=C(C=C1)S(=O)(=O)OCOP(O)(O)=O DNNIMMTYNOWWHP-UHFFFAOYSA-N 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 229940100892 mercury compound Drugs 0.000 description 1
- 150000002731 mercury compounds Chemical class 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000011206 ternary composite Substances 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a modified compound kieselguhr adsorbing agent for treating industrial wastewater and a preparation method. According to the technical scheme provided by the invention, the method comprises the following steps: firstly, modifying a diatomite subjected to ore-dressing purification and calcinations by using an organic quaternary ammonium salt, and then uniformly mixing the modified diatomite, attapulgite and de-magnesium silicon residues of serpentine at mass percentage of (60%-75%):(5%-35%):(5%-35%), thereby preparing the modified compound kieselguhr adsorbing agent. In the modified compound kieselguhr adsorbing agent, three porous mineral materials, namely, the diatomite modified by quaternary ammonium salt, the attapulgite and de-magnesium silicon residues of serpentine can give play to individual strengths, can collaboratively match one another and can selectively absorb the organic and inorganic pollutants in different types and molecular dimensions. The modified compound kieselguhr adsorbing agent is fit for treating the industrial wastewater in complex pollutant components and higher concentration.
Description
Technical field
The present invention relates to a kind of the modification compound diatomite adsorbant and the preparation method that process industrial wastewater, belong to nonmetallic mineral material and application and industrial waste water treatment.
Background technology
The industrial wastewaters such as pharmacy, chemical industry, oil recovery contain a large amount of organic and inorganic compositions, these not treated industrial wastewaters are directly discharged into rivers and lakes, not only severe contamination is caused to water environment and soil, and harm humans is healthy and the sustainable development of economic society.Poisonous and hazardous organic high with level of inorganic contaminants in pharmaceuticals industry waste water wherein, particularly serious to the harm of environment for human survival and health.
Pharmaceuticals industry waste water mainly refers to the waste water that pharmaceutical factories such as manufacturing antibiotic, antibiotic, antiserum discharges.The pollutant component of this class waste water is complicated, containing a large amount of acid, alkali, salt and gas chromatography in waste water, often with color and peculiar smell; The pollutant component of waste water is different with the kind of produced medicine with content, BOD, COD, SS generally all containing the noxious materials such as phenol, fluorine, cyanogen, mercury compound and high concentration and colloidal substance.
Oil production waste water in oil field is the organic wastewater produced in oil recovery process, and this kind of waste water contains a large amount of Small molecular and larger molecular organics, and COD is higher.Along with the application developed rapidly with polymer displacement of reservoir oil and ternary composite oil-displacing technique of petroleum industry, the discharge capacity of this kind of waste water is increasing, and not treated directly outer row not only brings serious environmental pressure, and causes oil field water day to be becoming tight.
The method of the above-mentioned industrial wastewater of current process has chemical method, Physical, bioanalysis and physical-chemical process etc.Chemical method mainly contains chemical oxidization method, ion-exchange and electrolysis; Physical primary attachment method and coagulation, filtration method; Physical-chemical process mainly contains flocculent precipitation.
Absorption method is one of main method of process industrial wastewater, and adsorbent is the core of absorption method.The adsorbent mainly active carbon of current treatment of pharmacy industrial wastewater and oil production waste water in oil field.Active carbon is a kind of excellent adsorbent, but due to the restriction of raw materials for production and expensive and production process carrying capacity of environment weight, production cost is high, applies and is restricted.
Diatomite is a kind of silicastone that ancient times, diatom organic remains was formed through long-term geologic process, the diatom structure such as disk, rotary strainer, annulus, cylinder of its design feature to be nanoaperture be regular distribution, average pore size 10 ~ 30nm, pore volume about 0.1ml/g, porosity is greater than 80%.Its main chemical compositions is noncrystalline SiO
2, chemical stability is good; Specific area is comparatively large, has good adsorptivity; Itself is environmentally friendly.And diatomite resource is abundanter, exploitation and processing cost lower.Diatomite after processing process is applied in the process of municipal sewage, effluent containing heavy metal ions, dyeing waste water etc.But for high concentration and the industrial wastewater such as the pharmacy of complicated component and oil extraction in oil field, the single diatomite adsorbant treatment effect of non-modified is limited or not good enough.
The present invention is directed to complicated component and the higher industrial wastewater of concentration, particularly pharmaceuticals industry waste water and oil production waste water in oil field treatment technology present situation and diatomite water treatment agent application present situation, proposes a kind of modification compound diatomite adsorbant for pharmaceuticals industry and oil production waste water in oil field process and preparation method thereof.
Summary of the invention
In view of pollutant component in pharmaceuticals industry waste water and oil production waste water in oil field is complicated, both containing water-fast large molecule and Hydrocarbon Organic, again containing water-soluble small organic molecule and organic surface active agent, inorganic salt and heavy metal ions is also had in pharmacy waste water, the present invention proposes the adsorber technologies scheme of a kind of modification infusorial earth and attapulgite, serpentine de-magging white residue compound, effectively to process this type of waste water.
The technical scheme of the modification compound diatomite adsorbant for complicated component wastewater treatment that the present invention proposes is, first modification is carried out to the diatomite organic quaternary ammonium salt after purification by mineral and calcining, then quaternary ammonium salt-modified diatomite and attapulgite and serpentine de-magging white residue 60% ~ 75%:5% by mass percentage ~ 35%:5% ~ 35% are carried out Homogeneous phase mixing.
Described diatomite quaternary ammonium salt carries out modification, it is characterized in that its processing step is:
(1) diatomite is calcined 1.5h at 450 DEG C, object removes capillary water in diatom particle duct and organic matter, and dredging duct, increases pore volume and specific area;
(2) the diatomite slurry that calcining diatomite mass concentration is 20% ~ 30% is made in the stirring that added water by step (1) calcined product;
(3) in the described diatomite slurry of step (2), add organic quaternary ammonium salt and carry out modification, organic quaternary ammonium salt consumption is 0.5% ~ 3.0% of calcining diatomite quality, and modification temperature is 50 ~ 90 DEG C, modification time 1 ~ 3h;
(4) step (3) modified product filtered, wash and drying at 100 ~ 200 DEG C of temperature, obtained quaternary ammonium salt-modified diatomite.
Diatomite quaternary ammonium salt described in above-mentioned steps (3) carries out modification, it is characterized in that organic quaternary ammonium salt is softex kw or hexadecyltrimethylammonium chloride.
With the diatomite after quaternary ammonium salt-modified, particle surface and duct become hydrophobicity to a certain degree by hydrophily on the one hand, improved and organic compatibility in waste water, table/interface is electrically adjusted and optimizes on the other hand, enhances the ability being adsorbed with organic pollutants.
Attapulgite is a kind of rich magnesium silicate clay mineral of chain layer structure, and crystal structure is that two-layer silicon-oxy tetrahedron layer presss from both sides one deck magnesium (aluminium) oxygen octahedra.Its design feature forms the hole parallel with chain at tetrahedron bar interband, and the average pore size of hole is 0.5 ~ 0.7nm.The specific area of attapulgite is about 50 ~ 400m
2/ g, pore volume about 0.07ml/g, have stronger absorption property for organic molecule.Because the specific area of attapulgite is larger, and there is certain ion exchanging function, stronger to organic molecule pollutant adsorption capacity, the inorganic salts in waste water and water soluble organic substance can also be removed, during with modification infusorial earth complex treatment complicated component industrial wastewater, make up aperture comparatively large and there is no the deficiency of diatomite adsorbant of ion-exchange capacity.
Serpentine de-magging white residue is the porous silicon material after serpentine separation and Extraction magnesia components, and its main component is noncrystalline SiO
2, average pore size is 1 ~ 5nm about, pore volume about 0.25ml/g, specific area 100 ~ 200m
2/ g, its specific area is large compared with diatomite, but aperture is little compared with diatomite, has stronger adsorption capacity to part heavy metal ion and solubility and small organic molecule, when processing the industrial wastewater of pollutant component complexity, can make up single diatomaceous deficiency.
Above-mentioned quaternary ammonium salt-modified diatomite, attapulgite, serpentine de-magging white residue three kinds of porous mineral materials pore-size distributions are from several dust to few tens of nanometers, average pore size scope is from 0.5nm to 20nm, and surface electrical behavior and ion-exchange performance are also different, according to the pollutant component of waste water carry out composite after can play respective strong point, coordinated, organic and the inorganic pollution that selective absorption variety classes is different with molecular size, to the high adsorption capacity of overall pollutant in complicated component and the higher pharmaceuticals industry waste water of concentration and oil production waste water in oil field, treatment effect is good.
Accompanying drawing explanation
Fig. 1 is the shape appearance figure of modification infusorial earth.
Fig. 2 is the shape appearance figure of attapulgite.
Fig. 3 is the shape appearance figure of serpentine de-magging white residue.
Detailed description of the invention
Embodiment 1
Take from the diatomite 500g after the ore dressing of Linjiang City of Jilin Province Bei Feng diatomite Co., Ltd, in the rotary tube furnace of laboratory, calcine 1.5h at 450 DEG C; Get the diatomite 200g after calcining to add clear water 600ml and stir to be placed in water-bath in the there-necked flask of laboratory and heat, softex kw 2.0g is added after slurry temperature rises to 75 DEG C, filter after 70 ~ 80 DEG C of insulation modification 1.5h, wash, filter cake after washing is dry at 105 DEG C in drying box, obtains modification infusorial earth.
Get above-mentioned modification infusorial earth 65g, attapulgite 30g, serpentine is carried magnesium white residue 5g and is mixed in laboratory stirrer, obtains modification compound diatomite adsorbant.
Get DESMP (p-benzenesulfonyloxymethyl phosphoric acid diethylester) factory effluent 1000mL.This waste component is complicated, content of organics is high and containing a certain amount of inorganic salts, COD (COD) is very high, concrete pollutant load is formaldehyde 13.20g/L, triethylamine 5.31g/L, diethyl phosphite 2.58g/L, salinity 9.52%, chlorine root 5.15%, COD126.14g/L, pH=5 ~ 6.
200g modification compound diatom essence earth adsorbing is added, stir process 60min at 70 DEG C of temperature in above-mentioned 1000mL waste water.Process after water sample COD (COD) for 33.71g/L, COD adsorption rate be 73.28%; Formaldehyde 1.47g/L, triethylamine 0.35g/L, diethyl phosphite 0.24g/L, salinity 1.02%, chlorine root 0.35%, adsorption rate is respectively 88.86%, 93.41%, 90.70%, 89.03%, 93.20%.
Embodiment 2
Modification infusorial earth 70g, attapulgite 5g prepared by Example 1, serpentine is carried magnesium white residue 25g and is mixed in laboratory stirrer, obtains modification compound diatomite adsorbant.
Get the north certain oil field waste discharge 1000mL, this waste water COD 241.92mg/L, pH value 6 ~ 7.
In above-mentioned 1000mL waste water, add 7g modification compound diatom essence earth adsorbing, stir process 1.5h at temperature 30 DEG C, after process, the COD of water sample is the clearance 84.77% of 36.85mg/L, COD.
Embodiment 3
Take from the diatomite 500g after the ore dressing of Linjiang City of Jilin Province Bei Feng diatomite Co., Ltd, in the rotary tube furnace of laboratory, calcine 1.5h at 450 DEG C; Get the diatomite 200g after calcining to add clear water 600ml and stir to be placed in water-bath in the there-necked flask of laboratory and heat, softex kw 4.0g is added after slurry temperature rises to 75 DEG C, filter after 70 ~ 80 DEG C of insulation modification 1.5h, wash, filter cake after washing is dry at 105 DEG C in drying box, obtains modification infusorial earth.
Get above-mentioned modification infusorial earth 60g, attapulgite 33g, serpentine is carried magnesium white residue 7g and is mixed in laboratory stirrer, obtains modification compound diatomite adsorbant.
Get waste component, COD and the pH value DESMP identical with embodiment 1 (p-benzenesulfonyloxymethyl phosphoric acid diethylester) factory effluent 1000mL.
200g modification compound diatom essence earth adsorbing is added, stir process 60min at 70 DEG C of temperature in above-mentioned 1000mL waste water.Process after water sample COD (COD) for 31.96g/L, COD adsorption rate be 74.66%; Formaldehyde 1.42g/L, triethylamine 0.33g/L, diethyl phosphite 0.21g/L, salinity 1.05%, chlorine root 0.37%, adsorption rate is respectively 89.96%, 93.78%, 91.86%, 88.97%, 92.82%.
Embodiment 4
Modification infusorial earth 65g, attapulgite 5g prepared by Example 3, serpentine is carried magnesium white residue 30g and is mixed in laboratory stirrer, obtains modification compound diatomite adsorbant.
Get the north certain oil field waste discharge 1000mL, this waste water COD 241.92mg/L, pH value 6 ~ 7.
In above-mentioned 1000mL waste water, add 7g modification compound diatom essence earth adsorbing, stir process 1.5h at temperature 30 DEG C, after process, the COD of water sample is the clearance 86.48% of 32.71mg/L, COD.
Embodiment 5
Take from the diatomite 500g after the ore dressing of Linjiang City of Jilin Province Bei Feng diatomite Co., Ltd, in the rotary tube furnace of laboratory, calcine 1.5h at 450 DEG C; Get the diatomite 200g after calcining to add clear water 600ml and stir to be placed in water-bath in the there-necked flask of laboratory and heat, hexadecyltrimethylammonium chloride 3.0g is added after slurry temperature rises to 75 DEG C, filter after 70 ~ 80 DEG C of insulation modification 1.5h, wash, filter cake after washing is dry at 105 DEG C in drying box, obtains modification infusorial earth.
Get above-mentioned modification infusorial earth 60g, attapulgite 33g, serpentine is carried magnesium white residue 7g and is mixed in laboratory stirrer, obtains modification compound diatomite adsorbant.
Get waste component, COD and the pH value DESMP identical with embodiment 1 (p-benzenesulfonyloxymethyl phosphoric acid diethylester) factory effluent 1000mL.
In above-mentioned 1000mL waste water, add 200g modification compound diatom essence earth adsorbing, at 70 DEG C of temperature, process 60min, pH value is 6.Process after water sample COD (COD) for 32.61g/L, COD adsorption rate be 74.15%; Formaldehyde 1.42g/L, triethylamine 0.34g/L, diethyl phosphite 0.23g/L, salinity 1.04%, chlorine root 0.39%, adsorption rate is respectively 89.24%, 93.60%, 91.09%, 89.08%, 92.43%.
Embodiment 6
Modification infusorial earth 68g, attapulgite 5g prepared by Example 5, serpentine is carried magnesium white residue 27g and is mixed in laboratory stirrer, obtains modification compound diatomite adsorbant.
Get the north certain oil field waste discharge 1000mL, this waste water COD 241.92mg/L, pH value 6 ~ 7.
In above-mentioned 1000mL waste water, add 7g modification compound diatom essence earth adsorbing, stir process 1.5h at temperature 30 DEG C, after process, the COD of water sample is the clearance 85.45% of 35.19mg/L, COD.
Finally it should be noted that, although above in conjunction with the embodiments to invention has been detailed description; person of ordinary skill in the field can understand; under the prerequisite not departing from present inventive concept, in claims, can also change above-described embodiment and change.
Claims (3)
1. one kind processes modification compound diatomite adsorbant and the preparation method of industrial wastewater, it is characterized in that, described modification compound diatomite adsorbant is made up of quaternary ammonium salt-modified diatomite, attapulgite and serpentine de-magging white residue, and its mass percent is: quaternary ammonium salt-modified diatomite: attapulgite: serpentine de-magging white residue is 60% ~ 75%:5% ~ 35%:5% ~ 35%.
2. a kind of modification compound diatomite adsorbant and preparation method processing industrial wastewater according to claim 1, it is characterized in that, its step of preparation process is:
(1) it is the slurry of 20% ~ 30% that calcining diatomite mass concentration is made in the stirring that adds water after being calcined at 450 DEG C by diatomite, in calcining diatomite slurry, add organic quaternary ammonium salt carry out modification, organic quaternary ammonium salt consumption is 0.5% ~ 3.0% of calcining diatomite quality, modification 1 ~ 3h at temperature is 50 ~ 90 DEG C, product filtration, washing and drying at 100 ~ 200 DEG C of temperature, obtained quaternary ammonium salt-modified diatomite;
(2) modified diatomite step (1) produced and attapulgite and serpentine de-magging white residue 60% ~ 75%:5% by mass percentage ~ 35%:5% ~ 35% carry out Homogeneous phase mixing, produce modification compound diatomite adsorbant.
3. a kind of modification compound diatomite adsorbant and the preparation method processing industrial wastewater according to claim 1 and 2, it is characterized in that, described organic quaternary ammonium salt is softex kw or hexadecyltrimethylammonium chloride.
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| CN106007006A (en) * | 2016-07-14 | 2016-10-12 | 济宁学院 | Microorganism water treatment agent for heavy metal organic wastewater |
| CN106106442A (en) * | 2016-06-25 | 2016-11-16 | 丁玉琴 | A kind of preparation method of the modified montmorillonite used pesticide slow-releasing agent of waste water from dyestuff |
| CN106116347A (en) * | 2016-06-26 | 2016-11-16 | 吴迪 | A kind of preparation method of anti-cracking plastering mortar |
| CN106111068A (en) * | 2016-07-29 | 2016-11-16 | 卢挺 | Preparation method for the organically-modified silicic acid magnalium that waste water processes |
| CN106693885A (en) * | 2016-12-14 | 2017-05-24 | 潍坊金原微生物肥料有限公司 | Production method of diatomite adsorption film for sewage treatment |
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| CN109482048A (en) * | 2018-12-29 | 2019-03-19 | 云南永昌硅业股份有限公司 | A kind of water power silicon smelting desulfurizing low concentration fume method |
| CN109482048B (en) * | 2018-12-29 | 2021-07-23 | 云南永昌硅业股份有限公司 | Low-concentration flue gas desulfurization method for smelting of silicon carbide by using water and electricity |
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