CN103723852B - Sewage treatment method based on inorganic and organic heavy metal absorbents - Google Patents
Sewage treatment method based on inorganic and organic heavy metal absorbents Download PDFInfo
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- CN103723852B CN103723852B CN201310638934.3A CN201310638934A CN103723852B CN 103723852 B CN103723852 B CN 103723852B CN 201310638934 A CN201310638934 A CN 201310638934A CN 103723852 B CN103723852 B CN 103723852B
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 89
- 239000010865 sewage Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002745 absorbent Effects 0.000 title abstract 6
- 239000002250 absorbent Substances 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 239000002594 sorbent Substances 0.000 claims description 47
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 21
- 230000007935 neutral effect Effects 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 14
- 239000001913 cellulose Substances 0.000 claims description 14
- 229920002678 cellulose Polymers 0.000 claims description 14
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 10
- 229910052728 basic metal Inorganic materials 0.000 claims description 10
- 150000003818 basic metals Chemical class 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 206010033546 Pallor Diseases 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 239000003818 cinder Substances 0.000 claims description 7
- 235000013399 edible fruits Nutrition 0.000 claims description 7
- 239000004310 lactic acid Substances 0.000 claims description 7
- 235000014655 lactic acid Nutrition 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 235000013311 vegetables Nutrition 0.000 claims description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 5
- 235000012255 calcium oxide Nutrition 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 3
- 229960001708 magnesium carbonate Drugs 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims description 2
- 238000007601 warm air drying Methods 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- -1 aluminium chlorohydroxide Chemical compound 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000007873 sieving Methods 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011133 lead Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- YCNZFPXXIWEFCF-UHFFFAOYSA-N alumane;sodium Chemical compound [Na].[AlH3] YCNZFPXXIWEFCF-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a sewage treatment method based on inorganic and organic heavy metal absorbents. The method comprises the following steps: first, introducing sewage into a pH regulating tank; then, introducing the regulated sewage into a reaction tower; adding air and catalysts into the reaction tower, wherein the catalysts are cast scrap iron and active carbon; then, introducing the sewage in the reaction tower into a sedimentation basin; adding an inorganic heavy metal absorbent; introducing the sewage into a pipeline mixer; adding an organic heavy metal absorbent; last, introducing the sewage in the pipeline mixer into a solid-liquid separator; depositing solid impurities containing heavy metals in the sewage at the bottom of the solid-liquid separator; discharging liquid in the sewage in the solid-liquid separator. According to the invention, all kinds of heavy metals are absorbed thoroughly through the well-designed inorganic heavy metal absorbent and the organic heavy metal absorbent; the effect is obvious.
Description
Technical field
The invention belongs to a kind for the treatment of process of commercial metal waste water, be specially a kind of based on inorganic and sewage water treatment method that is organic heavy metal sorbent material.
Background technology
In much mechanical means processing, manufacturing concern; the enterprises such as such as plating, five metals, wiring board production; in the production waste that these enterprises discharge; a lot of containing a large amount of heavy metals; heavy metal is often referred to the metal that proportion is greater than 4 or 5; about have 45 kinds, as copper, lead, zinc, iron, brill, nickel, vanadium, girl, load, admire, manganese, fluorine, mercury, tungsten, aluminium, gold and silver etc.; Although the heavy metals such as manganese, copper, zinc are the trace elements needed for vital movement, but institute such as most of heavy metal vital movement as non-in mercury, lead, good fortune etc. is necessary, and all heavy metals to exceed finite concentration all poisonous to human body, if do not processed the sewage that these contain heavy metal, make it directly be emitted in physical environment, it will cause serious heavy metal environmental pollution.
Heavy metal contamination hazard rating depends on the concentration that heavy metal exists in environment, food and organism and chemical form, heavy metal is generally extensively present in occurring in nature with natural concentration, but because the exploitation of mankind's heavy metal, smelting, processing and business manufacturing activities mouth benefit increase, many heavy metals such as lead, mercury, good fortune, brill etc. are caused to enter in air, water, soil, cause serious environmental pollution, with the heavy metal that various chemical state or chemical form exist, will retain, accumulate and move after entered environment or the ecosystem, work the mischief.As the heavy metal of discharging with waste water, even if concentration is little, also can accumulates in algae and bed mud, be adsorbed by the body surface of fish and shellfish, produce food chain and concentrate, thus cause public hazards.
On the other hand, if the direct discharge of these sewage containing heavy metal can cause very large waste again, if these heavy metals can be reclaimed, re-use after processing, not only can cut the waste, and also can produce considerable economic benefit.
For general enterprises, the treatment process of its heavy metal containing sewage adopted is relatively backward, and treated sewage is difficult to the emission standard reaching national regulation, if adopt advanced equipment, then cost is too high, and general enterprises is difficult to bear.
Summary of the invention
The object of the invention is to provide a kind of more simple, economical, safe and effective based on sewage water treatment method that is inorganic and organic heavy metal sorbent material for above-mentioned prior art Problems existing.
For achieving the above object, the invention provides following technical scheme:
Based on an inorganic and sewage water treatment method that is organic heavy metal sorbent material, concrete steps are as follows:
(1) sewage is put into pH value regulating tank, first use the mixing acid of the citric acid of 1:1 ~ 2:1 ~ 2:1 ~ 2 by volume, acetic acid, oxysuccinic acid, lactic acid that the pH value of sewage is adjusted to 5.5 ~ 6.5, then regulate pH to neutral with unslaked lime;
(2) secondly, the sewage after regulating is introduced reaction tower, and is filled with air in reaction tower, in reaction tower, add catalyzer, catalyzer is pig scrap, gac, makes the heavy metal ion in sewage be reduced, becomes unbound state heavy metal;
(3) then, the sewage in reaction tower being introduced in settling tank, toward wherein adding inorganic heavy metal sorbent material, and fully stirring; Described inorganic heavy metal sorbent material according to the component of weight part is: 50 ~ 60 parts, diatomite, wilkinite 30 ~ 40 parts, cinder 40 ~ 50 parts, 2 ~ 3 parts, carbonate, 5 ~ 8 parts, basic metal; 80 ~ 120 mesh sieves after said components is pulverized, mix and obtain inorganic heavy metal sorbent material, stored dry is for subsequent use;
(4) by sewage inducting tubes road mixing tank, add organic heavy metal sorbent material, and fully stir; The preparation method of described organic heavy metal sorbent material is: collect vegetables or fruit residue and pulverize, blanching 15 ~ 20 minutes in the hot water of 80 ~ 90 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 10.0 ~ 12.0, is placed in 55 ~ 65 DEG C of thermostat water bath process 1 ~ 2h and obtains Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 55 ~ 65 DEG C of baking ovens warm air drying 12 ~ 24h; Cross 80 ~ 120 mesh sieves after pulverizing, stored dry is for subsequent use;
(5) then make the sewage in line mixer enter solid-liquid separator, the heavy metal solid impurity that contains in sewage is deposited on bottom solid-liquid separator through precipitation, and the liquid in sewage is discharged after solid-liquid separator.
As further scheme, step (1) first uses the mixing acid of the citric acid of 1:1:1:1 by volume, acetic acid, oxysuccinic acid, lactic acid that the pH value of sewage is adjusted to 6.
As further scheme, the described inorganic heavy metal sorbent material of step (3) according to the component of weight part is: 55 parts, diatomite, wilkinite 35 parts, cinder 45 parts, 2 parts, carbonate, 6 parts, basic metal.
As further scheme, the carbonate described in step (3) be sodium carbonate, magnesiumcarbonate, carbonic acid by one; Described basic metal is the one in sodium Metal 99.5, potassium metal.
As further scheme, the inorganic heavy metal sorbent material described in step (3) comprises the alkali formula chlorination of 2 ~ 3 weight parts and the aluminium sodium cetanesulfonate of 4 ~ 6 weight parts.
As further scheme, the preparation method of the described organic heavy metal sorbent material of step (4) is: collect vegetables or fruit residue and pulverize, blanching 18 minutes in the hot water of 85 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 11, is placed in 60 DEG C of thermostat water baths and processes 1.5 h and obtain Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 60 DEG C of baking ovens the dry 18h of warm air; Cross 100 mesh sieves after pulverizing, stored dry is for subsequent use.
Beneficial effect: the inventive method has adsorbed each heavy metal species in heavy metal containing sewage thoroughly by well-designed organic heavy metal sorbent material and inorganic heavy metal sorbent material, successful.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention,
Based on an inorganic and sewage water treatment method that is organic heavy metal sorbent material, concrete steps are as follows:
(1) sewage is put into pH value regulating tank, first use the mixing acid of the citric acid of 1:2:2:1 by volume, acetic acid, oxysuccinic acid, lactic acid that the pH value of sewage is adjusted to 5.5, then regulate pH to neutral with unslaked lime;
(2) secondly, the sewage after regulating is introduced reaction tower, and is filled with air in reaction tower, in reaction tower, add catalyzer, catalyzer is pig scrap, gac, makes the heavy metal ion in sewage be reduced, becomes unbound state heavy metal;
(3) then, the sewage in reaction tower being introduced in settling tank, toward wherein adding inorganic heavy metal sorbent material, and fully stirring; Described inorganic heavy metal sorbent material according to the component of weight part is: 50 parts, diatomite, wilkinite 30 parts, cinder 40 parts, 2 parts, carbonate, 5 parts, basic metal; 80 mesh sieves after said components is pulverized, mix and obtain inorganic heavy metal sorbent material, stored dry is for subsequent use;
(4) by sewage inducting tubes road mixing tank, add organic heavy metal sorbent material, and fully stir; The preparation method of described organic heavy metal sorbent material is: collect vegetables or fruit residue and pulverize, blanching 15 minutes in the hot water of 80 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 10.0, is placed in 55 DEG C of thermostat water baths and processes 1h and obtain Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 55 DEG C of baking ovens the dry 12h of warm air; Cross 80 mesh sieves after pulverizing, stored dry is for subsequent use;
(5) then make the sewage in line mixer enter solid-liquid separator, the heavy metal solid impurity that contains in sewage is deposited on bottom solid-liquid separator through precipitation, and the liquid in sewage is discharged after solid-liquid separator.
As further scheme, the carbonate described in step (3) be sodium carbonate, magnesiumcarbonate, carbonic acid by one; Described basic metal is the one in sodium Metal 99.5, potassium metal.Inorganic heavy metal sorbent material described in step (3) comprises the alkali formula chlorination of 2 ~ 3 weight parts and the aluminium sodium cetanesulfonate of 4 ~ 6 weight parts.
Embodiment 2
Based on an inorganic and sewage water treatment method that is organic heavy metal sorbent material, concrete steps are as follows:
(1) sewage is put into pH value regulating tank, first use the mixing acid of the citric acid of 1:1:1:1 by volume, acetic acid, oxysuccinic acid, lactic acid that the pH value of sewage is adjusted to 6, then regulate pH to neutral with unslaked lime;
(2) secondly, the sewage after regulating is introduced reaction tower, and is filled with air in reaction tower, in reaction tower, add catalyzer, catalyzer is pig scrap, gac, makes the heavy metal ion in sewage be reduced, becomes unbound state heavy metal;
(3) then, the sewage in reaction tower being introduced in settling tank, toward wherein adding inorganic heavy metal sorbent material, and fully stirring; Described inorganic heavy metal sorbent material according to the component of weight part is: 55 parts, diatomite, wilkinite 35 parts, cinder 45 parts, 2 parts, carbonate, 6 parts, basic metal; 100 mesh sieves after said components is pulverized, mix and obtain inorganic heavy metal sorbent material, stored dry is for subsequent use;
(4) by sewage inducting tubes road mixing tank, add organic heavy metal sorbent material, and fully stir; The preparation method of described organic heavy metal sorbent material is: collect vegetables or fruit residue and pulverize, blanching 18 minutes in the hot water of 85 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 11.0, is placed in 60 DEG C of thermostat water baths and processes 1.5 h and obtain Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 60 DEG C of baking ovens the dry 18h of warm air; Cross 100 mesh sieves after pulverizing, stored dry is for subsequent use;
(5) then make the sewage in line mixer enter solid-liquid separator, the heavy metal solid impurity that contains in sewage is deposited on bottom solid-liquid separator through precipitation, and the liquid in sewage is discharged after solid-liquid separator.
Embodiment 3
Based on an inorganic and sewage water treatment method that is organic heavy metal sorbent material, concrete steps are as follows:
(1) sewage is put into pH value regulating tank, first use the mixing acid of the citric acid of 1:2:2:1 by volume, acetic acid, oxysuccinic acid, lactic acid that the pH value of sewage is adjusted to 6.5, then regulate pH to neutral with unslaked lime;
(2) secondly, the sewage after regulating is introduced reaction tower, and is filled with air in reaction tower, in reaction tower, add catalyzer, catalyzer is pig scrap, gac, makes the heavy metal ion in sewage be reduced, becomes unbound state heavy metal;
(3) then, the sewage in reaction tower being introduced in settling tank, toward wherein adding inorganic heavy metal sorbent material, and fully stirring; Described inorganic heavy metal sorbent material according to the component of weight part is: 60 parts, diatomite, wilkinite 40 parts, cinder 50 parts, 3 parts, carbonate, 8 parts, basic metal; 120 mesh sieves after said components is pulverized, mix and obtain inorganic heavy metal sorbent material, stored dry is for subsequent use;
(4) by sewage inducting tubes road mixing tank, add organic heavy metal sorbent material, and fully stir; The preparation method of described organic heavy metal sorbent material is: collect vegetables or fruit residue and pulverize, blanching 20 minutes in the hot water of 90 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 12.0, is placed in 65 DEG C of thermostat water baths and processes 2h and obtain Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 65 DEG C of baking ovens the dry 24h of warm air; Cross 120 mesh sieves after pulverizing, stored dry is for subsequent use;
(5) then make the sewage in line mixer enter solid-liquid separator, the heavy metal solid impurity that contains in sewage is deposited on bottom solid-liquid separator through precipitation, and the liquid in sewage is discharged after solid-liquid separator.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1., based on an inorganic and sewage water treatment method that is organic heavy metal sorbent material, it is characterized in that, concrete steps are as follows:
Sewage is put into pH value regulating tank, first use the mixing acid of the citric acid of 1:1 ~ 2:1 ~ 2:1 ~ 2 by volume, acetic acid, oxysuccinic acid, lactic acid that the pH value of sewage is adjusted to 5.5 ~ 6.5, then regulate pH to neutral with unslaked lime;
Secondly, the sewage after regulating is introduced reaction tower, and is filled with air in reaction tower, in reaction tower, add catalyzer, catalyzer is pig scrap, gac, makes the heavy metal ion in sewage be reduced, becomes unbound state heavy metal;
Then, the sewage in reaction tower being introduced in settling tank, toward wherein adding inorganic heavy metal sorbent material, and fully stirring; Described inorganic heavy metal sorbent material according to the component of weight part is: 50 ~ 60 parts, diatomite, wilkinite 30 ~ 40 parts, cinder 40 ~ 50 parts, 2 ~ 3 parts, carbonate, 5 ~ 8 parts, basic metal; Cross 80 ~ 120 mesh sieves after said components being pulverized, mixed by sieving and obtain inorganic heavy metal sorbent material, stored dry is for subsequent use;
By in sewage inducting tubes road mixing tank, add organic heavy metal sorbent material, and fully stir; The preparation method of described organic heavy metal sorbent material is: collect vegetables or fruit residue and pulverize, blanching 15 ~ 20 minutes in the hot water of 80 ~ 90 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 10.0 ~ 12.0, is placed in 55 ~ 65 DEG C of thermostat water bath process 1 ~ 2h and obtains Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 55 ~ 65 DEG C of baking ovens warm air drying 12 ~ 24h; Cross 80 ~ 120 mesh sieves after pulverizing, stored dry is for subsequent use; Then make the sewage in line mixer enter solid-liquid separator, the heavy metal solid impurity that contains in sewage is deposited on bottom solid-liquid separator through precipitation, and the liquid in sewage is discharged after solid-liquid separator.
2. according to claim 1ly it is characterized in that based on inorganic and sewage water treatment method that is organic heavy metal sorbent material, the pH value of sewage is first adjusted to 6 with the mixing acid of the citric acid of 1:1:1:1 by volume, acetic acid, oxysuccinic acid, lactic acid by step (1).
3. according to claim 1 based on inorganic and sewage water treatment method that is organic heavy metal sorbent material, it is characterized in that, the described inorganic heavy metal sorbent material of step (3) according to the component of weight part is: 55 parts, diatomite, wilkinite 35 parts, cinder 45 parts, 2 parts, carbonate, 6 parts, basic metal.
4. according to claim 1 based on inorganic and sewage water treatment method that is organic heavy metal sorbent material, it is characterized in that, the carbonate described in step (3) is the one in sodium carbonate, magnesiumcarbonate, volatile salt; Described basic metal is the one in sodium Metal 99.5, potassium metal.
5. according to claim 1 based on inorganic and sewage water treatment method that is organic heavy metal sorbent material, it is characterized in that, the inorganic heavy metal sorbent material described in step (3) comprises the aluminium chlorohydroxide of 2 ~ 3 weight parts and the sodium cetanesulfonate of 4 ~ 6 weight parts.
6. according to claim 1 based on inorganic and sewage water treatment method that is organic heavy metal sorbent material, it is characterized in that, the preparation method of the described organic heavy metal sorbent material of step (4) is: collect vegetables or fruit residue and pulverize, blanching 18 minutes in the hot water of 85 DEG C; Add water and be squeezed into material slurry, filter, get the rinsing of filter residue flowing water to neutral; Being soaked in pH value is again in the sodium hydroxide solution of 11, is placed in 60 DEG C of thermostat water baths and processes 1.5h and obtain Mierocrystalline cellulose; By Mierocrystalline cellulose with flowing water rinsing to neutral, after draining in 60 DEG C of baking ovens the dry 18h of warm air; Cross 100 mesh sieves after pulverizing, stored dry is for subsequent use.
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| CN104211225A (en) * | 2014-09-12 | 2014-12-17 | 中南林业科技大学 | Multiple complex treatment method for heavy metal sewage |
| CN105293769B (en) * | 2015-10-30 | 2017-08-15 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of method of dissolved organic matter and heavy metal ion in removal electroplating wastewater |
| CN106215857A (en) * | 2016-09-08 | 2016-12-14 | 天津大学 | A kind of modified coal slag adsorbent and preparation method and application |
| CN109136932A (en) * | 2018-07-03 | 2019-01-04 | 南京舜业环保科技有限公司 | A kind of regeneration treatment agent and preparation method thereof for sulfur acid etching waste liquor |
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Effective date of registration: 20170122 Address after: 410000 Yuelu District, Changsha, Yuelu street, Peach Village Patentee after: Hunan Vauban Environmental Protection Technology Co., Ltd. Address before: Yuelu District City, Hunan province 410083 Changsha taohualing village melon scoop group Patentee before: Liu Junliang |