CN110002643B - River black and odorous sewage treatment process - Google Patents
River black and odorous sewage treatment process Download PDFInfo
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- CN110002643B CN110002643B CN201910300615.9A CN201910300615A CN110002643B CN 110002643 B CN110002643 B CN 110002643B CN 201910300615 A CN201910300615 A CN 201910300615A CN 110002643 B CN110002643 B CN 110002643B
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- 239000010865 sewage Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000010802 sludge Substances 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000002156 mixing Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 239000008394 flocculating agent Substances 0.000 claims abstract description 16
- 238000004108 freeze drying Methods 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims description 64
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 229920002401 polyacrylamide Polymers 0.000 claims description 27
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 22
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 20
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 244000068988 Glycine max Species 0.000 claims description 16
- 235000010469 Glycine max Nutrition 0.000 claims description 16
- 240000008042 Zea mays Species 0.000 claims description 16
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 16
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 16
- 235000005822 corn Nutrition 0.000 claims description 16
- 239000010902 straw Substances 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 15
- 239000004202 carbamide Substances 0.000 claims description 15
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 11
- 235000009025 Carya illinoensis Nutrition 0.000 claims description 11
- 241001453450 Carya illinoinensis Species 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 11
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 10
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 10
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 10
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 10
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 10
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 235000019253 formic acid Nutrition 0.000 claims description 10
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 10
- 229940078494 nickel acetate Drugs 0.000 claims description 10
- 238000001694 spray drying Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 241000899834 Obovaria olivaria Species 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000004332 deodorization Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 38
- 238000005303 weighing Methods 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 8
- 239000006227 byproduct Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000723418 Carya Species 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- -1 thirdly Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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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
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention relates to a river black and odorous sewage treatment process. The process comprises a river sewage treatment process and a river sludge treatment process, wherein: (1) the river sewage treatment process comprises the following steps: adding a flocculating agent into the river sewage, uniformly mixing, standing, adding high-activity activated carbon into the river sewage, uniformly mixing, standing, illuminating river water with an LED ultraviolet lamp, and cleaning river sludge out of a water body; (2) the river sludge treatment process comprises the following steps: adding a water-retaining agent into the river sludge cleaned in the step (1), stirring and mixing, and performing freeze drying, high-pressure heat treatment and thermal roasting on the product to obtain the porous carrier. The invention adopts a new formula and a new process, the process has the advantages of high deodorization efficiency, high removal rate of suspended matters in water, high economic benefit of sludge and the like, and the produced product has excellent specific surface area.
Description
Technical Field
The invention relates to the field of river sewage treatment, in particular to a river black and odorous sewage treatment process.
Background
With the rapid development of national economy, environmental pollution is increasingly serious, particularly river water body pollution, except the pollution of rich nutrient components such as nitrogen and phosphorus, domestic garbage is as follows: plastics, kitchen garbage etc. seriously influence the self purification ability of river course, in the long run, lead to river course water blacking and smelly scheduling problem, at this moment, need carry out purification treatment to the river course water, however, river course water purification treatment and the high-efficient reuse of accessory substance resourceization are the technological problem that needs to solve at present urgently. Therefore, experts in all subject fields jointly research the technology of efficiently treating the river water body and recycling the by-products thereof. The common river water body treatment technology has the defects of high treatment cost, large treatment workload, more byproducts, low added value and the like. Therefore, the river water body needs to be improved in the aspects of efficient purification and byproduct resource recycling.
Disclosure of Invention
The invention aims to provide a river black and odorous sewage treatment process, which adopts a river sewage treatment process and a river sludge treatment process, has the advantages of high deodorization efficiency, high water suspended matter removal rate, high sludge economic benefit and the like, and the produced product has excellent large specific surface area. In order to achieve the purpose, the technical scheme of the invention is as follows:
a river course black and odorous sewage treatment process comprises a river course sewage treatment process and a river course sludge treatment process, wherein:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
adding a polyaluminum chloride flocculant, a polyacrylamide flocculant, acrylamide, ammonium persulfate, water and ferroferric oxide into a reaction kettle at a mass ratio of 20: 36-45: 11-21: 0.06-0.5: 3-8: 2-6, stirring at 90r/min and 50-83 ℃ for 0.5-6 h, and spray-drying the product at 105-140 ℃;
the high-activity activated carbon is prepared by the following steps:
adding activated carbon, ferroferric oxide, formic acid, tetrabutyl titanate, tetraethyl silicate, nickel acetate and copper acetate with the mass portion ratio of 32: 5-9: 67-95: 55-62: 22-29: 3-7: 2-5 into a high-pressure reaction kettle, stirring at the speed of 45r/min and the reaction temperature of 65-91 ℃ for 0.2-1.5 h, carrying out hydrothermal reaction on the product at the temperature of 135-162 ℃ for 3-7 h, and washing and drying the product;
adding 0.2-3% of flocculating agent into each cubic meter of water body to river sewage, uniformly mixing, standing, adding 0.5-6% of high-activity carbon into each cubic meter of river sewage, uniformly mixing, standing, and illuminating river water with a 1000-3000W LED ultraviolet lamp for 3-30 min to clear river sludge out of the water body;
(2) the river sludge treatment process comprises the following steps:
adding hickory nut shell powder, river sludge powder, soybean shell powder, corn straw powder, polyacrylamide water-absorbing resin and urea with the mass portion ratio of 27: 52-69: 8-17: 9-16: 12-19: 22-39 into the river sludge cleaned in the step (1), adding the mixture into a high-speed mixer at the mixing speed of 300-600 r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-5 to-30 ℃, carrying out heat treatment at 100-125 ℃ and 0.7-3 MPa for 0.5-3.5 h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Solid suspended solid and impurity are many in the river course water, at first, can be with river course water surface rubbish like through modes such as scraper blade: plastic bottles, gloves, foams and the like are removed, secondly, suspended matters in the river water body are quickly removed through a flocculating agent, thirdly, gas adsorbent in the water body is purified through high-activity activated carbon, and finally, river sludge is recycled.
Preferably, the weight part ratio of the hickory nut shell powder, the river sludge powder, the soybean shell powder, the corn straw powder, the polyacrylamide water-absorbing resin and the urea is 27:63:12:13:15: 34.
The invention has the beneficial effects that:
1. ferroferric oxide is introduced into the flocculating agent through acrylamide polymerization reaction, so that the density of the flocculating agent can be improved, the flocculation rate of the flocculating agent is increased, and the flocculating agent can obviously shorten the flocculation time and the flocculation efficiency of suspended matters in water;
2. introducing a photocatalyst into the high-activity activated carbon, adsorbing and enriching odor in the river into the high-activity activated carbon by utilizing the adsorption effect of the activated carbon, and then carrying out photocatalytic degradation on black odor gas by utilizing the photocatalyst in the high-activity activated carbon so as to solve the problem of odor of the water body; ferroferric oxide can improve the sinking rate of the high-activity activated carbon; the prepared high-activity activated carbon can obviously improve the odor content of water;
3. the pecan shell powder, the river channel sludge powder, the soybean shell powder, the corn straw powder and the polyacrylamide water-absorbing resin have high water-absorbing performance, can absorb water in sludge, prevent water loss, can keep a pore structure occupied by original water in materials through freeze drying, and can obviously improve the porosity of the sludge by taking the pecan shell powder, the river channel sludge powder, the soybean shell powder, the corn straw powder, the polyacrylamide water-absorbing resin and urea as pore-forming agents of the materials after high-temperature treatment.
Detailed Description
The following description of specific embodiments of the present invention is provided in connection with examples to facilitate a better understanding of the present invention. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention. Experimental procedures without specific conditions noted in the examples below, generally according to conditions conventional in the art or as suggested by the manufacturer; the raw materials, reagents and the like used are, unless otherwise specified, those commercially available from the conventional markets and the like. Any insubstantial changes and substitutions made by those skilled in the art based on the present invention are intended to be covered by the claims.
Example 1
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 39.5 parts of polyacrylamide flocculant, 14.6 parts of acrylamide, 0.08 part of ammonium persulfate, 6.5 parts of water and 4.5 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at the speed of 90r/min, reacting at the temperature of 75 ℃ for 3.5 hours, and spray-drying the product at the temperature of 125 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 7.8 parts of ferroferric oxide, 83 parts of formic acid, 59 parts of tetrabutyl titanate, 26.5 parts of tetraethyl silicate, 5.2 parts of nickel acetate and 3.9 parts of copper acetate, adding the mixture into a high-pressure reaction kettle, stirring at the speed of 45r/min, reacting at the temperature of 82 ℃ for 1.2h, carrying out hydrothermal reaction on the product at the temperature of 156 ℃ for 5.5h, and washing and drying the product;
adding 0.5 flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 2.3% of high-activity activated carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river for 15min by using a 3000W LED ultraviolet lamp, and cleaning the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 63 parts of river sludge powder, 12 parts of soybean shell powder, 13 parts of corn straw powder, 15 parts of polyacrylamide water-absorbing resin and 34 parts of urea into the river sludge cleaned in the step (1), adding the mixture into a high-speed mixer, mixing at the mixing speed of 500r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-15 ℃, carrying out heat treatment at 120 ℃ and 1.5MPa for 1.5h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 2
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 36 parts of polyacrylamide flocculant, 11 parts of acrylamide, 0.06 part of ammonium persulfate, 3 parts of water and 2 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at 90r/min at 50 ℃ for reaction for 6 hours, and spray-drying the product at 105 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 5 parts of ferroferric oxide, 67 parts of formic acid, 55 parts of tetrabutyl titanate, 22 parts of tetraethyl silicate, 3 parts of nickel acetate and 2 parts of copper acetate, adding the materials into a high-pressure reaction kettle, stirring at 45r/min at 65 ℃ for reaction for 1.5 hours, carrying out hydrothermal reaction on the product at 135 ℃ for 7 hours, and washing and drying the product;
adding 0.2% of flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 0.5% of high-activity activated carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river for 30min by using a 1000W LED ultraviolet lamp, and removing the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 52 parts of river sludge powder, 8 parts of soybean shell powder, 9 parts of corn straw powder, 12 parts of polyacrylamide water-absorbing resin and 22 parts of urea into the river sludge cleaned in the step (1), adding the mixture into a high-speed mixer, mixing at the mixing speed of 300r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-5 ℃, carrying out heat treatment at 100 ℃ and 3MPa for 0.5h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 3
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 45 parts of polyacrylamide flocculant, 21 parts of acrylamide, 0.5 part of ammonium persulfate, 8 parts of water and 6 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at 90r/min at 83 ℃ for reaction for 0.5h, and spray-drying the product at 140 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 9 parts of ferroferric oxide, 95 parts of formic acid, 62 parts of tetrabutyl titanate, 29 parts of tetraethyl silicate, 7 parts of nickel acetate and 5 parts of copper acetate, adding the materials into a high-pressure reaction kettle, stirring at 45r/min at the reaction temperature of 91 ℃ for reaction for 0.2h, carrying out hydrothermal reaction on the product at 162 ℃ for 3h, and washing and drying the product;
adding 3% of flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 6% of high-activity carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river with a 3000W LED ultraviolet lamp for 3min, and cleaning the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 69 parts of river sludge powder, 17 parts of soybean shell powder, 16 parts of corn straw powder, 19 parts of polyacrylamide water-absorbent resin and 39 parts of urea into the river sludge cleaned in the step (1), adding the mixture into a high-speed mixer, mixing at the mixing speed of 600r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-30 ℃, carrying out heat treatment at 125 ℃ and 3MPa for 0.5h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 4
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 36.9 parts of polyacrylamide flocculant, 11.7 parts of acrylamide, 0.08 part of ammonium persulfate, 3.7 parts of water and 2.6 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at the speed of 90r/min, reacting at the temperature of 53 ℃ for 0.8h, and spray-drying the product at the temperature of 108 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 5.9 parts of ferroferric oxide, 69 parts of formic acid, 57 parts of tetrabutyl titanate, 23.7 parts of tetraethyl silicate, 3.8 parts of nickel acetate and 2.9 parts of copper acetate, adding the materials into a high-pressure reaction kettle, stirring at the speed of 45r/min, reacting at the temperature of 67 ℃ for 0.4h, carrying out hydrothermal reaction on the product at the temperature of 138 ℃ for 3.7h, and washing and drying the product;
adding 0.8% of flocculating agent into each cubic meter of water body to the river sewage, uniformly mixing, standing, adding 0.9% of high-activity activated carbon into each cubic meter of the river sewage, uniformly mixing, standing, illuminating the river with a 1000W LED ultraviolet lamp for 29min, and cleaning the river sludge out of the water body;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 56 parts of river sludge powder, 8.8 parts of soybean shell powder, 9.7 parts of corn straw powder, 12.6 parts of polyacrylamide water-absorbing resin and 23.1 parts of urea into the river sludge cleaned in the step (1), adding into a high-speed mixer at the mixing speed of 350r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-6 ℃, carrying out heat treatment at 103 ℃ and 0.9MPa for 0.8h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 5
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 38.2 parts of polyacrylamide flocculant, 14.1 parts of acrylamide, 0.15 part of ammonium persulfate, 4.6 parts of water and 3.1 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at the speed of 90r/min, reacting at the temperature of 57 ℃ for 1.8h, and spray-drying the product at the temperature of 109 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 7.3 parts of ferroferric oxide, 71.6 parts of formic acid, 58.6 parts of tetrabutyl titanate, 25.2 parts of tetraethyl silicate, 5.1 parts of nickel acetate and 3.6 parts of copper acetate, adding the mixture into a high-pressure reaction kettle, stirring at 45r/min and 69 ℃ for 0.5h, carrying out hydrothermal reaction on the product at 139 ℃ for 4.6h, and washing and drying the product;
adding 0.7% of flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 1.8% of high-activity activated carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river for 5min by using a 2000W LED ultraviolet lamp, and cleaning the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 56 parts of river sludge powder, 10.8 parts of soybean shell powder, 11.3 parts of corn straw powder, 13.2 parts of polyacrylamide water-absorbing resin and 25.6 parts of urea into the river sludge cleaned in the step (1), adding into a high-speed mixer at a mixing speed of 390r/min and a mixing temperature of 30 ℃ for 25min, freeze-drying the product at-10 ℃, carrying out heat treatment at 109 ℃ and 1.6MPa for 0.9h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 6
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 40 parts of polyacrylamide flocculant, 16 parts of acrylamide, 0.4 part of ammonium persulfate, 6 parts of water and 5 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at 90r/min at the reaction temperature of 58 ℃ for reaction for 3 hours, and spray-drying the product at 120 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 7 parts of ferroferric oxide, 82 parts of formic acid, 60 parts of tetrabutyl titanate, 26 parts of tetraethyl silicate, 4.5 parts of nickel acetate and 3.5 parts of copper acetate, adding the materials into a high-pressure reaction kettle, stirring at 45r/min, reacting at 82 ℃ for 0.7h, carrying out hydrothermal reaction on the product at 145 ℃ for 4.5h, and washing and drying the product;
adding 1.5% of flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 3.2% of high-activity activated carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river for 16min by using a 2000W LED ultraviolet lamp, and cleaning the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 61 parts of river sludge powder, 15 parts of soybean shell powder, 11 parts of corn straw powder, 16 parts of polyacrylamide water-absorbing resin and 33 parts of urea into the river sludge cleaned in the step (1), adding the mixture into a high-speed mixer, mixing at the mixing speed of 400r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-20 ℃, performing heat treatment at 117 ℃ and 2MPa for 2h, performing heat treatment at 150 ℃ for 0.5h, performing heat treatment at 200 ℃ for 0.5h, performing heat roasting at 300 ℃ for 1h, performing heat roasting at 400 ℃ for 1h, performing heat roasting at 500 ℃ for 2h, performing heat roasting at 600 ℃ for 2h, and performing heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 7
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 43.8 parts of polyacrylamide flocculant, 20.1 parts of acrylamide, 0.49 parts of ammonium persulfate, 7 parts of water and 5.5 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at the speed of 90r/min and the reaction temperature of 81 ℃ for 5.1h, and spray-drying the product at 136 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 8.2 parts of ferroferric oxide, 93 parts of formic acid, 61.5 parts of tetrabutyl titanate, 28.6 parts of tetraethyl silicate, 6.3 parts of nickel acetate and 5.3 parts of copper acetate, adding the mixture into a high-pressure reaction kettle, stirring at the speed of 45r/min and the reaction temperature of 90 ℃ for 1.3 hours, carrying out hydrothermal reaction on the product at the temperature of 161 ℃ for 6.5 hours, and washing and drying the product;
adding 2.7% of flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 5.3% of high-activity activated carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river for 26min by using a 3000W LED ultraviolet lamp, and cleaning the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 67.3 parts of river sludge powder, 16.5 parts of soybean shell powder, 15.2 parts of corn straw powder, 17.5 parts of polyacrylamide water-absorbing resin and 37.6 parts of urea into the river sludge cleaned in the step (1), adding into a high-speed mixer at the mixing speed of 500r/min and the mixing temperature of 30 ℃ for mixing for 25min, freeze-drying the product at-26 ℃, carrying out heat treatment at 123 ℃ and 2.5MPa for 3.3h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Example 8
A treatment process of black and odorous sewage in a river channel comprises the following steps:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
weighing 20 parts of polyaluminum chloride flocculant, 43.1 parts of polyacrylamide flocculant, 18.8 parts of acrylamide, 0.35 part of ammonium persulfate, 6.5 parts of water and 5.3 parts of ferroferric oxide, adding the components into a reaction kettle, stirring at the speed of 90r/min, reacting at the temperature of 77 ℃ for 3.9 hours, and spray-drying the product at the temperature of 132 ℃;
the high-activity activated carbon is prepared by the following steps:
weighing 32 parts of activated carbon, 7.7 parts of ferroferric oxide, 90 parts of formic acid, 59.5 parts of tetrabutyl titanate, 26.5 parts of tetraethyl silicate, 5.5 parts of nickel acetate and 3.6 parts of copper acetate, adding the materials into a high-pressure reaction kettle, stirring at 45r/min and 87 ℃ for reaction for 1.3 hours, carrying out hydrothermal reaction on the product at 156 ℃ for 6.1 hours, and washing and drying the product;
adding 2.6% of flocculating agent into the river sewage per cubic meter of water, uniformly mixing, standing, adding 3.9% of high-activity activated carbon per cubic meter of the river sewage, uniformly mixing, standing, illuminating the river for 22min by using a 2000W LED ultraviolet lamp, and cleaning the river sludge out of the water;
(2) the river sludge treatment process comprises the following steps:
adding 27 parts of pecan shell powder, 66 parts of river sludge powder, 15.6 parts of soybean shell powder, 12.3 parts of corn straw powder, 14.9 parts of polyacrylamide water-absorbing resin and 36 parts of urea into the river sludge cleaned in the step (1), adding into a high-speed mixer at the mixing speed of 400r/min and the mixing temperature of 30 ℃ for 25min, freeze-drying the product at-25 ℃, carrying out heat treatment at 121 ℃ and 2.1MPa for 2.9h, carrying out heat treatment at 150 ℃ for 0.5h, carrying out heat treatment at 200 ℃ for 0.5h, carrying out heat roasting at 300 ℃ for 1h, carrying out heat roasting at 400 ℃ for 1h, carrying out heat roasting at 500 ℃ for 2h, carrying out heat roasting at 600 ℃ for 2h, and carrying out heat roasting at 800 ℃ for 3h to obtain the porous carrier.
Comparative example 1
In this comparative example, no flocculant was added, and the other components and treatment process were the same as in example 1.
Comparative example 2
In this comparative example, the high activity carbon was not added, and the other components and the treatment process were the same as in example 1. Comparative example 3
In the comparative example, hickory shell powder, river sludge powder, soybean shell powder, corn straw powder, polyacrylamide water absorbent resin and urea were not added, and the other components and the treatment process were the same as in example 1.
Comparative example 4
In the comparison example, the common polyaluminum chloride flocculant is selected in the formula to replace the flocculant in the example 1, and other components and the preparation method are the same as the example 1.
Comparative example 5
In the comparison example, common activated carbon is selected in the formula to replace the high-activity activated carbon in the example 1, and other components and the preparation method are the same as the example 1.
Comparative example 6
In the comparative example, the common polyacrylamide water-absorbing resin is selected to replace the hickory shell powder, the river sludge powder, the soybean shell powder, the corn straw powder, the polyacrylamide water-absorbing resin and the urea in the example 1, and other components and the preparation method are the same as those in the example 1.
The products of the riverway black and odorous sewage treatment processes prepared in the examples 1 to 8 and the comparative examples 1 to 6 are characterized in that the initial riverway water body has an odor concentration of 70 and a suspended matter content of 267 mg/L. The odor concentration, suspended matter content and pore size were tested according to GB/T14675, GB/T11901 and GB/T21650.1, respectively, and the test results are shown in tables 1 and 2 below.
Table 1 performance parameters of the riverway black and odorous sewage treatment processes prepared in examples 1 to 8
Table 2 performance parameters of the black and odorous wastewater treatment processes for rivers, prepared in example 1 and comparative examples 1 to 6
As can be seen from table 1 and table 2 above, the odor concentration, the suspended matter content and the pore diameter performance of the byproduct material of the riverway black and odorous sewage treatment process prepared in each embodiment of the present invention are superior, which indicates that the riverway black and odorous sewage treatment process prepared from the raw materials provided by the present invention has better odor concentration, suspended matter content and byproduct material pore diameter performance; in contrast, the odor concentration, the suspended matter content and the pore diameter of the byproduct material of the riverway black and odorous sewage treatment process prepared from the raw materials of each comparative example are poor. In addition, the river black and odorous sewage treatment process prepared by the embodiments of the invention has better odor concentration, suspended matter content and byproduct material pore diameter performance.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (2)
1. The river course black and odorous sewage treatment process is characterized by comprising a river course sewage treatment process and a river course sludge treatment process, wherein:
(1) the river sewage treatment process comprises the following steps:
the flocculant is prepared by the following steps:
adding a polyaluminum chloride flocculant, a polyacrylamide flocculant, acrylamide, ammonium persulfate, water and ferroferric oxide into a reaction kettle at a mass ratio of 20: 36-45: 11-21: 0.06-0.5: 3-8: 2-6, stirring at 90r/min and 50-83 ℃ for 0.5-6 h, and spray-drying the product at 105-140 ℃;
the high-activity activated carbon is prepared by the following steps:
adding activated carbon, ferroferric oxide, formic acid, tetrabutyl titanate, tetraethyl silicate, nickel acetate and copper acetate with the mass portion ratio of 32: 5-9: 67-95: 55-62: 22-29: 3-7: 2-5 into a high-pressure reaction kettle, stirring at the speed of 45r/min and the reaction temperature of 65-91 ℃ for 0.2-1.5 h, carrying out hydrothermal reaction on the product at the temperature of 135-162 ℃ for 3-7 h, and washing and drying the product;
adding 0.2-3% of flocculating agent into each cubic meter of water body to river sewage, uniformly mixing, standing, adding 0.5-6% of high-activity carbon into each cubic meter of river sewage, uniformly mixing, standing, and illuminating river water with a 1000-3000W LED ultraviolet lamp for 3-30 min to clear river sludge out of the water body;
(2) the river sludge treatment process comprises the following steps:
adding the pecan shell powder, the river sludge powder, the soybean shell powder, the corn straw powder, the polyacrylamide water-absorbing resin and urea in a mass portion ratio of 27: 52-69: 8-17: 9-16: 12-19: 22-39 into the river sludge cleaned in the step (1), adding into a high-speed mixer, mixing at a mixing speed of 300-600 r/min and a mixing temperature of 30 ℃ for 25min, freeze-drying the product at-5 to-30 ℃, performing heat treatment at 100-125 ℃ and 0.7-3 MPa for 0.5-3.5 h, performing heat treatment at 150 ℃ for 0.5h, performing heat treatment at 200 ℃ for 0.5h, performing heat roasting at 300 ℃ for 1h, performing heat roasting at 400 ℃ for 1h, performing heat roasting at 500 ℃ for 2h, performing heat roasting at 600 ℃ for 2h, and performing heat roasting at 800 ℃ for 3h to obtain the porous carrier.
2. The riverway black and odorous sewage treatment process according to claim 1, wherein the mass part ratio of the hickory nut shell powder, the riverway sludge powder, the soybean shell powder, the corn straw powder, the polyacrylamide water-absorbing resin and the urea is 27:63:12:13:15: 34.
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| CN101780952A (en) * | 2010-03-26 | 2010-07-21 | 上海交通大学 | Method for preparing loading functional oxide porous carbon |
| CN103241812A (en) * | 2013-05-29 | 2013-08-14 | 江苏大学 | Photomagnetic composite flocculant and preparation method thereof |
| CN205974200U (en) * | 2016-08-30 | 2017-02-22 | 贵州绿纯环境开发有限公司 | Provide necessary precondition's structure for founing riverway water body ecosystem |
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| CN108975330A (en) * | 2018-09-30 | 2018-12-11 | 江苏斯沃得环保科技有限公司 | A method of active carbon is prepared using stalk and sludge |
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| CN101780952A (en) * | 2010-03-26 | 2010-07-21 | 上海交通大学 | Method for preparing loading functional oxide porous carbon |
| CN103241812A (en) * | 2013-05-29 | 2013-08-14 | 江苏大学 | Photomagnetic composite flocculant and preparation method thereof |
| CN205974200U (en) * | 2016-08-30 | 2017-02-22 | 贵州绿纯环境开发有限公司 | Provide necessary precondition's structure for founing riverway water body ecosystem |
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