CN110776111A - Domestic sewage treatment agent and preparation method thereof - Google Patents
Domestic sewage treatment agent and preparation method thereof Download PDFInfo
- Publication number
- CN110776111A CN110776111A CN201911125834.4A CN201911125834A CN110776111A CN 110776111 A CN110776111 A CN 110776111A CN 201911125834 A CN201911125834 A CN 201911125834A CN 110776111 A CN110776111 A CN 110776111A
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- sewage treatment
- treatment agent
- domestic sewage
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a domestic sewage treatment agent and a preparation method thereof, belonging to the technical field of sewage treatment. The domestic sewage treatment agent disclosed by the invention is composed of the following substances in parts by weight: 10-30 parts of polyacrylamide, 10-25 parts of chitosan, 1-5 parts of photosynthetic bacteria, 1-5 parts of actinomycetes, 5-10 parts of polyaluminium chloride, 5-10 parts of attapulgite clay and 40-70 parts of deionized water. The domestic sewage treatment agent has a good purification effect, the preparation method of the domestic sewage treatment agent is simple, the used raw materials are nontoxic, and secondary pollution is avoided.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a domestic sewage treatment agent and a preparation method of the domestic sewage treatment agent.
Background
The water resource on the earth has less than 1% of fresh water, and only 0.007% of the water can be directly utilized by human beings. Saving and recycling water resources have been the focus of attention of human beings in the near and long term in the future. In the recycling of water resources, sewage needs to be treated, and the treated sewage can be recycled by human beings.
The domestic sewage is the sewage which accounts for a heavier proportion in the modern society, along with the development of science and technology, more and more household appliances are intelligent, the domestic water consumption is increased year by year, if the domestic sewage is not treated, not only is the water resource wasted, but also the natural environment is greatly influenced.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems, the invention provides a domestic sewage treatment agent and a preparation method thereof, the domestic sewage treatment agent has a good water purification effect, the preparation method is simple, the required raw materials are nontoxic, and the domestic sewage treatment agent is suitable for popularization and application.
The technical scheme is as follows: in order to overcome the defects in the prior art, the invention provides a domestic sewage treatment agent which is prepared from the following substances in parts by weight: 10-30 parts of polyacrylamide, 10-25 parts of chitosan, 1-5 parts of photosynthetic bacteria, 1-5 parts of actinomycetes, 5-10 parts of polyaluminium chloride, 5-10 parts of attapulgite clay and 40-70 parts of deionized water. The polyacrylamide can increase the utilization rate of water recycling circulation, can also be used for sludge dehydration, and can be used for coagulation and clarification of suspended particles in domestic sewage when being matched with attapulgite clay; the chitosan is non-toxic, does not cause secondary pollution, is used for treating the activated sludge and has excellent effect; the photosynthetic bacteria can utilize organic matters, sulfides, ammonia and the like as hydrogen donor and carbon source to carry out photosynthesis under anaerobic illumination or aerobic dark condition, can degrade harmful substances such as nitrite and sulfides in water, and has strong decomposition and conversion capability; actinomycetes can decompose a plurality of organic matters in sewage; the polyaluminium chloride has the performances of adsorption, condensation, precipitation and the like, has good stability, wide adaptive water range, strong adsorption capacity, high density and precipitation speed, low effluent turbidity and good dehydration performance; the attapulgite clay is renewable, has low energy consumption, is beneficial to environmental protection, can decolorize grease, and can adsorb substances such as hormone, virus, toxin and the like in sewage.
Further, the chitosan is high-viscosity chitosan. The high-viscosity chitosan has high viscosity, good quality, no toxicity and biodegradability, and can flocculate suspended matters in sewage.
Further, the preparation method of the high-viscosity chitosan comprises the following steps: grinding 1-5 parts of chitin, adding 200 parts of sodium hydroxide solution, stirring and reacting for 3 hours at 50 ℃, filtering after the reaction is finished, and drying a filter cake in a 60 ℃ oven for 24 hours to obtain the high-viscosity chitosan. The preparation method is simple.
Furthermore, the particle size of the ground chitin is 350-500 μm. The reaction yield of the high-viscosity chitosan prepared by adopting the chitin with the grain size is high.
Further, the mass concentration of the sodium hydroxide solution is 35%.
A method for preparing a domestic sewage treatment agent, comprising the steps of:
(1) respectively activating photosynthetic bacteria and actinomycetes and then carrying out expanded culture;
(2) putting photosynthetic bacteria and actinomycetes in a culture medium according to the weight ratio for mixed culture for 24 hours, and centrifugally separating a bacterial liquid to remove components of the culture medium to obtain a mixed microorganism;
(3) and (3) mixing the polyacrylamide, the high-viscosity chitosan, the polyaluminium chloride and the attapulgite clay in parts by weight with deionized water, uniformly stirring, and adding the mixed microorganism obtained in the step (2) to prepare the domestic sewage treatment agent.
Further, the culture medium in the step (2) is composed of the following formula by weight: 80 parts of soluble starch, 10 parts of potassium nitrate, 5 parts of dipotassium hydrogen phosphate, 5 parts of sodium chloride, 5 parts of magnesium sulfate, 50 parts of agar and 200 parts of deionized water.
Has the advantages that: compared with the prior art, the invention has the following advantages: the domestic sewage treatment agent has a strong flocculation effect on domestic sewage, can decolorize grease in the domestic sewage, can biodegrade organic matters in the domestic sewage, and has a good treatment effect on the domestic sewage. The domestic sewage treatment agent has simple preparation method, and the used raw materials are nontoxic and can not generate secondary pollution.
Detailed Description
The invention will be further elucidated by means of several specific examples, which are intended to be illustrative only and not limiting.
Example 1
A method for preparing a domestic sewage treatment agent, comprising the steps of:
(1) preparing high-viscosity chitosan: grinding 1 part of chitin into powder with the particle size of 350 microns, adding 200 parts of 35% sodium hydroxide solution by mass concentration, stirring and reacting for 3 hours at 50 ℃, filtering after the reaction is finished, and drying a filter cake in a 60 ℃ oven for 24 hours to obtain high-viscosity chitosan;
(2) respectively activating photosynthetic bacteria and actinomycetes and then carrying out expanded culture;
(3) putting 1 part of photosynthetic bacteria and 1 part of actinomycetes into a culture medium for mixed culture for 24 hours, and centrifugally separating a bacterial liquid to remove components of the culture medium to obtain a mixed microorganism;
(4) and (2) mixing 10 parts of polyacrylamide, 10 parts of high-viscosity chitosan obtained in the step (1), 5 parts of polyaluminum chloride, 5 parts of attapulgite clay and 40 parts of deionized water, uniformly stirring, and adding the mixed microorganisms obtained in the step (3) to prepare the domestic sewage treatment agent.
Wherein the culture medium in the step (3) consists of the following components in parts by weight: 80 parts of soluble starch, 10 parts of potassium nitrate, 5 parts of dipotassium hydrogen phosphate, 5 parts of sodium chloride, 5 parts of magnesium sulfate, 50 parts of agar and 200 parts of deionized water.
Example 2
A method for preparing a domestic sewage treatment agent, comprising the steps of:
(1) preparing high-viscosity chitosan: grinding 5 parts of chitin into powder with the particle size of 500 mu m, adding 200 parts of 35% sodium hydroxide solution by mass concentration, stirring and reacting for 3h at 50 ℃, filtering after the reaction is finished, and drying a filter cake in a 60 ℃ oven for 24h to obtain the high-viscosity chitosan;
(2) respectively activating photosynthetic bacteria and actinomycetes and then carrying out expanded culture;
(3) putting 5 parts of photosynthetic bacteria and 5 parts of actinomycetes into a culture medium for mixed culture for 24 hours, and centrifugally separating a bacterial liquid to remove components of the culture medium to obtain a mixed microorganism;
(4) and (2) mixing 30 parts of polyacrylamide, 25 parts of the high-viscosity chitosan obtained in the step (1), 10 parts of polyaluminum chloride, 10 parts of attapulgite clay and 70 parts of deionized water, uniformly stirring, and adding the mixed microorganisms obtained in the step (2) to prepare the domestic sewage treatment agent.
Wherein the culture medium in the step (2) consists of the following components in parts by weight: 80 parts of soluble starch, 10 parts of potassium nitrate, 5 parts of dipotassium hydrogen phosphate, 5 parts of sodium chloride, 5 parts of magnesium sulfate, 50 parts of agar and 200 parts of deionized water.
Example 3
A method for preparing a domestic sewage treatment agent, comprising the steps of:
(1) preparing high-viscosity chitosan: grinding 3 parts of chitin into powder with the particle size of 425 micrometers, adding 200 parts of 35% sodium hydroxide solution by mass concentration, stirring and reacting for 3 hours at 50 ℃, filtering after the reaction is finished, and drying a filter cake in a 60 ℃ oven for 24 hours to obtain high-viscosity chitosan;
(2) respectively activating photosynthetic bacteria and actinomycetes and then carrying out expanded culture;
(3) putting 3 parts of photosynthetic bacteria and 3 parts of actinomycetes into a culture medium for mixed culture for 24 hours, and centrifugally separating a bacterial liquid to remove components of the culture medium to obtain a mixed microorganism;
(4) and (2) mixing 20 parts of polyacrylamide, 17 parts of the high-viscosity chitosan obtained in the step (1), 7 parts of polyaluminum chloride, 7 parts of attapulgite clay and 55 parts of deionized water, uniformly stirring, and adding the mixed microorganism obtained in the step (3) to prepare the domestic sewage treatment agent.
Wherein the culture medium in the step (3) consists of the following components in parts by weight: 80 parts of soluble starch, 10 parts of potassium nitrate, 5 parts of dipotassium hydrogen phosphate, 5 parts of sodium chloride, 5 parts of magnesium sulfate, 50 parts of agar and 200 parts of deionized water.
The beneficial effects of the invention are further illustrated by the following experimental data, 1kg of the sewage treatment agent produced in examples 1-3 is respectively added into 1t of domestic sewage for purification treatment, and the removal rate of each index in the purified water is measured after 4h, and the test results are shown in the following table:
TABLE 1 result of testing the purifying performance of sewage treating agent
| Example 1 | Example 2 | Example 3 | |
| Suspension/% of | 89.5 | 99.9 | 99.1 |
| COD/％ | 89.1 | 99.5 | 89.7 |
| BOD/％ | 88.9 | 99.1 | 89.5 |
In conclusion, the results in table 1 show that the domestic sewage treatment agent provided by the invention has the advantages of strong decontamination capability, high reaction speed, high removal rate of suspended matters in sewage, no need of a sludge treatment system, good sewage purification effect and suitability for popularization and application.
The foregoing is directed to embodiments of the present invention and it is understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (7)
1. A domestic sewage treatment agent is characterized in that: the composition is prepared from the following substances in parts by weight: 10-30 parts of polyacrylamide, 10-25 parts of chitosan, 1-5 parts of photosynthetic bacteria, 1-5 parts of actinomycetes, 5-10 parts of polyaluminium chloride, 5-10 parts of attapulgite clay and 40-70 parts of deionized water.
2. The domestic sewage treatment agent according to claim 1, wherein: the chitosan is high-viscosity chitosan.
3. The domestic sewage treatment agent according to claim 2, wherein: the preparation method of the high-viscosity chitosan comprises the following steps: grinding 1-5 parts of chitin, adding 200 parts of sodium hydroxide solution, stirring and reacting for 3 hours at 50 ℃, filtering after the reaction is finished, and drying a filter cake in a 60 ℃ oven for 24 hours to obtain the high-viscosity chitosan.
4. The domestic sewage treatment agent according to claim 3, wherein: the particle size of the ground chitin is 350-500 mu m.
5. The domestic sewage treatment agent according to claim 3, wherein: the mass concentration of the sodium hydroxide solution is 35%.
6. A method for producing a domestic sewage treatment agent, the method comprising the step of producing a domestic sewage treatment agent according to any one of claims 2 to 5, wherein: the method comprises the following steps:
(1) respectively activating photosynthetic bacteria and actinomycetes and then carrying out expanded culture;
(2) putting photosynthetic bacteria and actinomycetes in a culture medium according to the weight ratio for mixed culture for 24 hours, and centrifugally separating a bacterial liquid to remove components of the culture medium to obtain a mixed microorganism;
(3) and (3) mixing the polyacrylamide, the high-viscosity chitosan, the polyaluminium chloride and the attapulgite clay in parts by weight with deionized water, uniformly stirring, and adding the mixed microorganism obtained in the step (2) to prepare the domestic sewage treatment agent.
7. The method for preparing a domestic sewage treatment agent according to claim 6, wherein: the culture medium in the step (2) consists of the following components in parts by weight: 80 parts of soluble starch, 10 parts of potassium nitrate, 5 parts of dipotassium hydrogen phosphate, 5 parts of sodium chloride, 5 parts of magnesium sulfate, 50 parts of agar and 200 parts of deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911125834.4A CN110776111A (en) | 2019-11-18 | 2019-11-18 | Domestic sewage treatment agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911125834.4A CN110776111A (en) | 2019-11-18 | 2019-11-18 | Domestic sewage treatment agent and preparation method thereof |
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| CN110776111A true CN110776111A (en) | 2020-02-11 |
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| CN201911125834.4A Pending CN110776111A (en) | 2019-11-18 | 2019-11-18 | Domestic sewage treatment agent and preparation method thereof |
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Citations (7)
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|---|---|---|---|---|
| CN102492055A (en) * | 2011-11-11 | 2012-06-13 | 中央民族大学 | Method for preparing high-viscosity chitosan by using chitin |
| CN102887964A (en) * | 2011-07-17 | 2013-01-23 | 高邮市明增生物制品厂 | Method for producing high-viscosity chitosan |
| CN105347512A (en) * | 2015-11-30 | 2016-02-24 | 鄄城康泰化工有限公司 | Domestic sewage treating agent |
| CN105368748A (en) * | 2015-12-04 | 2016-03-02 | 无锡拓能自动化科技有限公司 | Urban sewage treatment compound bacteria and preparation method thereof |
| CN106976995A (en) * | 2017-06-05 | 2017-07-25 | 合肥永泰新型建材有限公司 | A kind of river sewage inorganic agent and preparation method |
| CN109179690A (en) * | 2018-09-21 | 2019-01-11 | 四川奥恒环保科技有限公司 | A kind of domestic sewage treating compound and preparation method thereof |
| CN109293014A (en) * | 2018-11-30 | 2019-02-01 | 遵义汇恒环保科技有限公司 | A kind of modified domestic sewage treating compound |
-
2019
- 2019-11-18 CN CN201911125834.4A patent/CN110776111A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887964A (en) * | 2011-07-17 | 2013-01-23 | 高邮市明增生物制品厂 | Method for producing high-viscosity chitosan |
| CN102492055A (en) * | 2011-11-11 | 2012-06-13 | 中央民族大学 | Method for preparing high-viscosity chitosan by using chitin |
| CN105347512A (en) * | 2015-11-30 | 2016-02-24 | 鄄城康泰化工有限公司 | Domestic sewage treating agent |
| CN105368748A (en) * | 2015-12-04 | 2016-03-02 | 无锡拓能自动化科技有限公司 | Urban sewage treatment compound bacteria and preparation method thereof |
| CN106976995A (en) * | 2017-06-05 | 2017-07-25 | 合肥永泰新型建材有限公司 | A kind of river sewage inorganic agent and preparation method |
| CN109179690A (en) * | 2018-09-21 | 2019-01-11 | 四川奥恒环保科技有限公司 | A kind of domestic sewage treating compound and preparation method thereof |
| CN109293014A (en) * | 2018-11-30 | 2019-02-01 | 遵义汇恒环保科技有限公司 | A kind of modified domestic sewage treating compound |
Non-Patent Citations (1)
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Application publication date: 20200211 |
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