CN115367891A - Manganese ore or manganese compound for treating black and odorous water body and treatment method - Google Patents

Manganese ore or manganese compound for treating black and odorous water body and treatment method Download PDF

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Publication number
CN115367891A
CN115367891A CN202211019263.8A CN202211019263A CN115367891A CN 115367891 A CN115367891 A CN 115367891A CN 202211019263 A CN202211019263 A CN 202211019263A CN 115367891 A CN115367891 A CN 115367891A
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China
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manganese
black
odorous water
compound
water body
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CN202211019263.8A
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Chinese (zh)
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王科
尹丹
王哲
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Harbin Institute of Technology
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Harbin Institute of Technology
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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
    • C02F7/00—Aeration of stretches of water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/101—Sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/206—Manganese or manganese compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/34—Organic compounds containing oxygen
    • 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
    • C02F2101/40—Organic compounds containing sulfur
    • 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
    • C02F2103/001—Runoff or storm water
    • 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
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/04—Oxidation reduction potential [ORP]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Physical Water Treatments (AREA)

Abstract

The invention discloses a manganese ore or manganese compound for treating black and odorous water and a treatment method, relates to the field of water treatment, and aims to solve the problems that the existing physical and chemical treatment method for treating black and odorous water is high in cost or energy consumption, low in transparency, easy to repeat black and odorous water, and slow in biological method effect. The manganese ore is one or more of manganese ore, manganese oxide and manganese-containing compound; or manganese ore loaded on a filler or carrier. The method comprises the following steps: adding manganese ore or a manganese compound, or adding a filler or a carrier loaded with the manganese ore or the manganese compound into the black and odorous water body, and treating the black and odorous water body under the condition of aeration or non-aeration. The invention can not only improve the transparency of the black and odorous water body rapidly and inhibit the secondary black and odorous return phenomenon after the black and odorous water body is treated, but also improve the oxidation-reduction potential of the water body, reduce the odor of the black and odorous water body, sewage plant or sewage treatment structure sewage, sewage or the water body in the rainwater pipeline, reduce the corrosion of the sewage and rainwater pipeline, and has multiple repair functions.

Description

Manganese ore or manganese compound for treating black and odorous water body and treatment method
Technical Field
The invention belongs to the field of water treatment, and particularly relates to a manganese ore or manganese compound for treating black and odorous water and a treatment method.
Background
The black and odorous water body is an extreme phenomenon of organic pollution of the water body. Mainly because of the rapid development of industry and agriculture, pollutants generated by human beings are gradually increased, a large amount of industrial sewage and rural domestic sewage are directly discharged into a river channel without treatment, the organic matter load is overlarge, the contents of nitrogen, phosphorus, sulfur and the like are increased, and a natural ecological system is damaged. According to data in '2019 publication of China ecological environment conditions' issued by the ministry of ecological environment, IV-class, V-class and inferior V-class in the surface water monitoring section of China are respectively 17.5%, 4.2% and 3.4%, and the water environment problem in cities and rural areas is still severe. On one hand, the evaluation indexes of the black and odorous water body comprise transparency, dissolved oxygen, oxidation-reduction potential and ammonia nitrogen, wherein the transparency is listed as one of four indexes of the evaluation of the black and odorous water body, and the transparency of the water body is less than 25 cm and belongs to the black and odorous water body. The low transparency of the water body can cause that submerged plants at the bottom can not receive illumination, reduce photosynthesis and further aggravate the oxygen deficiency and the decay of the water body. On the other hand, the black and odorous water body generates hydrogen sulfide, mercaptan, thioether and other volatile odorous small molecular substances, so that odor pollution is caused, and the surrounding environmental conditions and the living quality of residents are seriously affected. Therefore, the normal function of the water body is quickly recovered, the transparency of the black and odorous water body is improved, the pollution of odor of the water body is reduced, and the black and odorous water body is treated efficiently.
The town sewage treatment plant undertakes the work of purifying and treating the town sewage, and plays an important role in urban development and environmental protection. However, H is generated in the sewage treatment process 2 And malodorous gases such as Volatile Sulfur Compounds (VSCs) such as S and mercaptans. Particularly, as the urbanization process is accelerated continuously, new living areas are built around sewage treatment plants originally far away from urban living areas, and malodorous gas complaints and disputes occur frequently, which are the most complaints of the sewage plants in China at present. In China, the emission of malodorous gases is strictly limited in the discharge Standard of pollutants for municipal wastewater treatment plants (GB 1891-2002). In additionIn addition, sewage in a sewage pipe network has high organic content, is less in contact with air, has low oxidation-reduction potential, is easy to generate malodorous gases such as hydrogen sulfide, mercaptan, thioether and the like, not only pollutes the air quality, but also is easy to overflow a water surface pipeline to generate acidic substances such as sulfuric acid and the like, and seriously corrodes the pipeline. Therefore, how to reduce the odor such as mercaptan, hydrogen sulfide and the like which overflows the water body and reduce the influence of the odor on the environment is a problem to be solved urgently in the running process of the urban sewage treatment plant and the sewage pipe network system.
The existing treatment of black and odorous water is generally carried out according to the technical route of 'source control and sewage interception, endogenous treatment, running water circulation, clear water supply, water quality purification and ecological restoration', but the specific treatment technology and method are various and the treatment effect is different. The treatment technology mainly comprises a physical method, a chemical method and a biological method. The physical method comprises dredging, artificial aeration, water diversion and flushing and the like. The chemical method mainly comprises the steps of enhanced flocculation and chemical oxidation. The methods can purify black and odorous water to a certain extent and improve the transparency of the water, but have high cost and low efficiency and have the possibility of secondary pollution and repeated black and odorous. The biological method has the advantages of ecological friendliness and no secondary pollution, but has slow effect, higher input cost and easy repetition of the black and odorous phenomenon after treatment.
The application of the Chinese invention patent CN106348507A discloses a method for treating black and odorous water by using iron powder-manganese sand and an aeration coupling process, and the technology is mainly used for removing pollutants such as ammonia nitrogen, phosphate, COD and the like in a river channel. However, the treatment effect on transparency and odor substances in black and odorous water is unknown, the addition of iron powder can cause the water to turn black and reduce the ORP of the water, and the patent requires long-term aeration, so that the aeration energy consumption for large-area water treatment is high. The Chinese invention patent CN111499096B application discloses a black and odorous river water body treatment system which is composed of activated carbon, iron powder and manganite, the restoration method is based on an iron-carbon micro-electrolysis principle, the effective action time is short, the consumption of the iron powder is fast, and ferric iron compounds can be released to a water body in the restoration process to form a large amount of floc ferric hydroxide, so that the water body is obviously reddened, and the chromaticity of the water body is obviously improved.
Disclosure of Invention
The invention aims to solve the problems of high cost or energy consumption, low transparency, easy repetition of black and odorous water and slow effect of a biological method in the existing physical and chemical treatment method for treating black and odorous water, and provides a manganese ore or manganese compound for treating black and odorous water and a treatment method.
According to the invention, the manganese ore or the manganese compound for treating the black and odorous water body is directly or loaded on the filler or the carrier to treat the black and odorous water body; the manganese compound is one or more of manganese oxide and a manganese-containing compound.
Further, the black and odorous water body is surface or underground black and odorous water, sewage in a sewage plant or a sewage treatment structure, sewage or sewage in a rainwater pipeline.
Further, the manganese ore or the manganese compound is a mineral, an oxide, a compound or a mixture containing manganese with the valence less than 5.
Further, the manganese ore or the manganese compound is used for improving the transparency of the black and odorous water body.
Further, the manganese ore or the manganese compound is used for reducing the odor release of the black and odorous water body, and the odor is mercaptan, thioether or hydrogen sulfide.
Further, the manganese ore or the manganese compound is used for reducing the corrosion of sewage or rainwater pipelines.
Further, the manganese ore or the manganese compound is used for improving the oxidation-reduction potential of the black and odorous water body and improving the dissolved oxygen of the black and odorous water body.
Further, the manganese ore or the manganese compound is used for preventing the surface water body from blackening and smelling, and preventing the surface black and smelly water body from returning black and smelling again after treatment.
Further, the manganese ore or the manganese compound is used for removing ammonia nitrogen in the black and odorous water body.
The invention relates to a method for treating black odorous water by using manganese ore or manganese compounds for treating black odorous water, which comprises the following steps: and adding manganese ore or a manganese compound, or adding a filler or a carrier loaded with the manganese ore or the manganese compound into the black and odorous water body, and treating the black and odorous water body under the condition of aeration or non-aeration, namely finishing the treatment of the black and odorous water body.
Furthermore, the adding amount of the manganese ore or the manganese compound is 0.00001-1800 kg/m 3 。
The invention can reduce the odor release of the sewage, the sulfur ether, the hydrogen sulfide and the like in the black and odorous water body, the sewage plant or the sewage treatment structure. The manganese minerals, manganese oxides and manganese compounds in the invention are widely available in nature, and have low price and strong economical efficiency. The invention is mainly characterized in that the transparency of black and odorous water, odor release, pipeline corrosion, black returning and odor returning, ammonia nitrogen reduction of water, oxidation-reduction potential improvement, oxygen dissolution and the like are effectively treated by adopting manganese ore or manganese compounds. In addition, the invention can not only utilize the dissolved oxygen with extremely low concentration in the water, but also utilize the sulfate radicals, micromolecular acids and other substances in the water as electron acceptors under the condition of no aeration, thereby efficiently removing the colored substances and odor substances generated in the anaerobic environment in the water body and avoiding or reducing the economic investment brought by aeration. In addition, the manganese ore, the manganese oxide and the manganese compound have larger surface areas and have negative charges on the surfaces, so that the manganese ore, the manganese oxide and the manganese compound have stronger adsorption capacity on ammonia nitrogen and promote the conversion of the ammonia nitrogen.
Compared with CN106348507A, the invention can be implemented under the condition of no aeration, and does not need iron, so that the invention can greatly reduce the water body restoration cost and energy consumption.
Compared with CN111499096B, the invention has no problems, does not need carbon and iron, has low medicament consumption and can be used for a long time.
In addition, the invention not only can rapidly improve the transparency of the black and odorous water body, effectively inhibit the secondary black and odorous return phenomenon after the black and odorous water body is treated, but also can improve the oxidation-reduction potential of the water body, reduce the odor of the black and odorous water body, sewage plant or sewage treatment structure sewage, sewage or water body in the rainwater pipeline, reduce the corrosion of the sewage or rainwater pipeline system, and has multiple repair functions.
Drawings
FIG. 1 is a graph showing the effect of the present invention on water clarity, dissolved oxygen, redox potential, ammonia nitrogen, mercaptans and sulfides before and after treatment with aeration and non-aeration; in the figure, the dotted line is the standard requirement of the water quality of the black and odorous water body;
FIG. 2 is a graph showing the influence of the treatment of the present invention on the transparency of water, dissolved oxygen, oxidation-reduction potential, ammonia nitrogen, mercaptan and sulfide before and after the treatment of manganese sand at different dosages; in the figure, the dotted line is the standard requirement of the water quality of the black and odorous water body;
FIG. 3 is a graph showing the effect of the present invention on water transparency, dissolved oxygen, oxidation-reduction potential, ammonia nitrogen, mercaptans and sulfides before and after treatment under the conditions of artificial float grass and floating island modified with manganese sand;
FIG. 4 is a diagram showing the influence of the treatment of the present invention on water transparency, dissolved oxygen, oxidation-reduction potential, ammonia nitrogen, mercaptan and sulfide before and after the treatment with the addition of trimanganese tetroxide, manganite and manganese dioxide, respectively;
FIG. 5 is a graph showing the effect of the present invention on mercaptans and sulfides in a municipal wastewater treatment structure during long-term operation;
FIG. 6 shows the effect of manganese sand on sulfide removal with the addition of sulfate.
Detailed Description
For the purpose of promoting a clear understanding of the objects, aspects and advantages of the embodiments of the invention, reference will now be made in detail to the embodiments of the present disclosure, and it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure.
The exemplary embodiments of the present invention and the description thereof are provided to explain the present invention and not to limit the present invention.
Example 1
The treatment method for treating black odorous water manganese ore comprises the following steps:
adding manganese sand into black and odorous water body in an amount of 200g/m 3 And after 72h, the pair is finishedAnd (5) repairing the black and odorous water body. The treatment effect in the case of aeration and non-aeration is shown in figure 1. The result shows that the manganese sand has better repairing effect on black and odorous water under the aeration and non-aeration conditions.
Fig. 6 shows the effect of removing sulfide from manganese sand with the addition of sulfate, and it can be seen that the manganese sand of the present example can use sulfate as an electron acceptor.
Example 2
The embodiment is a method for treating black odorous water manganese ore, which comprises the following steps: adding manganese sand into black and odorous water, wherein the adding amount of the manganese sand is 100g/m 3 ,200g/m 3 And 500g/m 3 And finishing the treatment of the black and odorous water body after 72 hours. The effect of the treatment is shown in figure 2. The adding amount of the manganese sand is 100-500g/m 3 The method has good repairing effect on black and odorous water in a range, and the removing effect of sulfide and mercaptan in the black and odorous water is improved along with the increase of the adding amount of the manganese sand.
Example 3
The embodiment is a method for treating black odorous water body manganese ore and a treatment method, and the method is carried out according to the following steps; artificial aquatic plants and floating islands modified by loading manganese sand are added into the black and odorous water body, and the effects before and after treatment of the black and odorous water body are shown in figure 3.
Example 4
The embodiment is a method for treating black odorous water manganese ore, which comprises the following steps: respectively adding trimanganese tetroxide, manganomagnetite and manganese sand into black and odorous water, wherein the adding amount is 200g/m 3 And after 72 hours, the treatment of the black and odorous water body is finished, and the treatment effect is shown in figure 4. After the black and odorous water body is treated, various indexes such as transparency, dissolved oxygen, oxidation-reduction potential and the like are improved, which proves that different manganese oxides with valence of +4 and +3 have the repairing effect on the black and odorous water body.
Example 5
In the embodiment, the filler loaded with manganese sand is used for removing sulfides in the sewage treatment structure, so that the release amount of odors such as mercaptan, hydrogen sulfide and the like is reduced. According to the operation mode of the sewage biological reaction tank, the organic suspended filler or the inorganic mineral porous filler modified by the manganese sand is uniformly distributed in the biological reaction tank, and the hydraulic retention time is 2 hours. And (4) measuring the removal effect of the mercaptan and the sulfide in the sewage. As shown in fig. 5. Fig. 5 is an effect diagram of the continuous operation of the apparatus for one month, demonstrating that the manganese sand can act for a long time. It is understood that the present embodiment can suppress blackening and deodorizing.

Claims (10)

1. A manganese ore or a manganese compound for treating black and odorous water is characterized in that the manganese ore or the manganese compound is directly or loaded on a filler or a carrier to treat the black and odorous water; the manganese compound is one or more of manganese oxide and a manganese-containing compound.
2. The compound of manganese ore or manganese according to claim 1, wherein the black odorous water is surface or underground black odorous water, sewage in sewage plants or sewage treatment structures, sewage in rainwater pipelines.
3. The compound of manganese ore or manganese used for treating black odorous water body according to claim 1, characterized in that the compound of manganese ore or manganese is a mineral, oxide, compound or mixture containing manganese with a valence less than 5.
4. The compound of manganese ore or manganese used for treating black odorous water body according to claim 1, 2 or 3, wherein the compound of manganese ore or manganese is used for improving the transparency of black odorous water body.
5. The compound of manganese ore or manganese for treating black odorous water body according to claim 1, 2 or 3, wherein the compound of manganese ore or manganese is used for reducing the release of the odor of black odorous water body, and the odor is mercaptan, thioether or hydrogen sulfide.
6. The compound of manganese ore or manganese for treating black odorous water body according to claim 1, 2 or 3, wherein the compound of manganese ore or manganese is used for reducing corrosion of sewage or rainwater pipes.
7. The compound of manganese ore or manganese used for treating black odorous water body according to claim 1, 2 or 3, wherein the compound of manganese ore or manganese is used for increasing oxidation-reduction potential of black odorous water body and increasing dissolved oxygen of black odorous water body.
8. A manganese ore or manganese compound for treating black and odorous water bodies according to claim 1, 2 or 3, wherein the manganese ore or manganese compound is used for preventing surface water bodies from blackening and smelling and preventing the surface black and odorous water bodies from blackening and smelling again after being treated.
9. The compound of manganese ore or manganese used for treating black odorous water body according to claim 1, 2 or 3, wherein the compound of manganese ore or manganese is used for reducing the ammonia nitrogen content of black odorous water body.
10. The method for treating the black odorous water body by using the manganese ore or the manganese compound for treating the black odorous water body as claimed in claim 1, 2 or 3, which is characterized by comprising the following steps of: and adding manganese ore or a manganese compound, or adding a filler or a carrier loaded with the manganese ore or the manganese compound into the black and odorous water body, and treating the black and odorous water body under the condition of aeration or non-aeration, namely finishing the treatment of the black and odorous water body.
CN202211019263.8A 2022-08-24 2022-08-24 Manganese ore or manganese compound for treating black and odorous water body and treatment method Pending CN115367891A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004063863A1 (en) * 2004-01-09 2005-08-04 Glindemann, Dietmar, Dr. For the control and minimizing of odors from sewers, and sewage processing plants, the dimethylsulfoxide feed is reduced to prevent the formation of dimethylsulfide
CN106348507A (en) * 2016-11-08 2017-01-25 河南城建学院 Method for treating black and odorous water in urban river and iron powder containing wall or manganese sand containing wall structure thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004063863A1 (en) * 2004-01-09 2005-08-04 Glindemann, Dietmar, Dr. For the control and minimizing of odors from sewers, and sewage processing plants, the dimethylsulfoxide feed is reduced to prevent the formation of dimethylsulfide
CN106348507A (en) * 2016-11-08 2017-01-25 河南城建学院 Method for treating black and odorous water in urban river and iron powder containing wall or manganese sand containing wall structure thereof

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