CN105906147A - Biological purification treatment method of industrial wastewater - Google Patents
Biological purification treatment method of industrial wastewater Download PDFInfo
- Publication number
- CN105906147A CN105906147A CN201610352996.1A CN201610352996A CN105906147A CN 105906147 A CN105906147 A CN 105906147A CN 201610352996 A CN201610352996 A CN 201610352996A CN 105906147 A CN105906147 A CN 105906147A
- Authority
- CN
- China
- Prior art keywords
- industrial wastewater
- high salinity
- water
- purifying
- biological cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating 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
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a biological purification treatment method of industrial wastewater. The method comprises the following steps: physical treatment for removing suspended solids and oil slicks out of the high salinity industrial wastewater; chemical treatment for removing dissolved and colloid pollutants out of the high salinity industrial wastewater; dilution, adding salt-free water to the high salinity industrial wastewater subjected to the steps of physical treatment and chemical treatment to reduce the salt concentration; biological purification, guiding the diluted high salinity industrial wastewater to a constructed wetland in which purifying plants are grown; collecting the industrial wastewater subjected to biological purification from a water circulation system of the constructed wetland. The method has the beneficial effects that the plants grown in the constructed wetland are utilized for biological purification; the wastewater after biological purification basically reaches the quality of natural water and can be safely discharged or recycled.
Description
Technical field
The present invention relates to technical field of waste water processing, particularly relate to the biological cleaning processing method of a kind of industrial wastewater.
Background technology
Chemical industry is one of pillar industry of country, especially petrochemical industry and field of fine chemical, and development in the recent period is quickly.
The subject matter that chemical industry is faced is environmental protection problem, especially chemical industry to the consumption of water resource and
The impact on surrounding body of the waste water of chemical industry.Owing to the waste water of chemical industry containing various organic and inorganic pollutions
Thing, it is necessary to could discharge after processing.Meanwhile, chemical industry water consumption is huge, if the waste water circulation that will get rid of
Utilize, then can significantly alleviate the chemical industry impact on surrounding enviroment.
The means that industrial wastewater processes main employing at present are physical treatment or chemical treatment.Physical treatment main
Purpose is the solid pollutant removed from industrial wastewater in suspended state or the greasy dirt swum on the water surface.General process
After physical treatment, the clearance of suspended solid is 70%～80%, but the removal that physical treatment is to Biochemical oxygen demand (BOD)
Rate only has 25%～about 40%, and the degree of purification of waste water is the highest.Chemically treated main purpose is to remove having in waste water
Machine or inorganic pollution, chemical treatment typically realizes by the way of adding preparation, for regulating the pH value of waste water,
Or the pollutant that resolution of precipitate is in water.
But the either waste water after physical treatment or chemical treatment, compared with the water in natural water, still containing more
Industrial pollutants, be drained in natural water or natural water can be produced bigger pollution.
Summary of the invention
It is contemplated that propose the high salinity Industrial Wastewater Treatment side of a kind of function of biological purification utilizing wetland plant
Method.
According to the present invention it is proposed that the biological cleaning processing method of a kind of industrial wastewater, comprise the steps:
Physical treatment step, removes the float in high salinity industrial wastewater and oil film；
Chemical treatment step, the dissolving in removing in high salinity industrial wastewater and colloid pollution thing；
Dilution step, does not contains to adding in the high salinity industrial wastewater of physical treatment step and chemical treatment step
The water of salt, to reduce salt concentration；
Biological cleaning step, is incorporated into kind of the artificial swamp being implanted with purifying plant by the high salinity industrial wastewater after dilution
In；
The industrial wastewater through biological cleaning is collected from the water circulation system of artificial swamp.
Wherein physical treatment step includes: use mechanical agitation and deposition to remove the float in high salinity industrial wastewater；
The oil film in high salinity industrial wastewater is removed with using gravitational separation process.
Wherein chemical treatment step includes: addition coagulant in high salinity industrial wastewater, solid-liquid separation after precipitation,
Remove solids.
In biological cleaning step, plant be implanted with the artificial swamp of purifying plant be divided into first class purification district, secondary purification district and
Three grades of purifying areas, wherein the depth of water in first class purification district is 0.1-0.3 rice, and the depth of water in secondary purification district is 0.3-0.6 rice, three
The depth of water of level purifying area is 0.6-1 rice.In first class purification district, the purifying plant of plantation includes wilson iris, aquatic beauty
Any of several broadleaf plants and Herba Lythri Salicariae, in secondary purification district plantation purifying plant include Herba Scirpi Tabernaemontani, narrow leaf Herba Typhae, common cattail, phragmites communis and
Flos Nelumbinis, in three grades of purifying areas, the purifying plant of plantation includes Flos nymphaeae (Nymphaea teragona Georgi).
Use the biological cleaning processing method of the industrial wastewater of the present invention, the industrial wastewater quilt after physics, chemical treatment
It is input in artificial swamp, utilizes the plant being planted in artificial swamp to carry out biological cleaning, after biological cleaning
Waste water basically reaches the water quality in natural water, both can be with safety dumping, it is also possible to recycling.
Accompanying drawing explanation
Fig. 1 is the flow chart of the biological cleaning processing method of the industrial wastewater according to the present invention.
Fig. 2 be the industrial wastewater according to the present invention biological cleaning processing method in the flow chart of physical treatment step.
Detailed description of the invention
Nearest research finds, lives in the Activities of Some Plants in wetland and has preferable tolerance level to brine waste, and
Salt in waste water can be utilized by some of plants as nutrient.In the wetland with a large amount of plant, in water
Saline pollution thing can significantly reduce, by the water quality of the brine waste energy access expansion water body that wetland plant purifies.Cause
This, it is contemplated that utilize the function of biological purification of wetland plant, in conjunction with physical treatment and chemical treatment, to high salinity
Industrial wastewater processes effectively.
With reference to shown in Fig. 1, present invention is disclosed the biological cleaning processing method of a kind of industrial wastewater, under the method includes
The step stated:
S101. physical treatment step, removes the float in high salinity industrial wastewater and oil film.With reference to shown in Fig. 2,
This physical treatment step farther includes: S201. uses mechanical agitation and deposition to remove hanging in high salinity industrial wastewater
Oil film in float, and S202. use gravitational separation process removal high salinity industrial wastewater.Wherein step S201 is permissible
A stirring depositing reservoir being provided with agitating device is carried out, and step S202 can be carried out in Sedimentation tank.
S102. chemical treatment step, the dissolving in removing in high salinity industrial wastewater and colloid pollution thing.A reality
Executing in example, step S102 includes adding coagulant in high salinity industrial wastewater so that dissolve and colloid pollution thing sinks
Solid-liquid separation behind shallow lake, then removes solids.This step can be carried out in coagulative precipitation tank.
S103. dilution step, adds in the high salinity industrial wastewater of physical treatment step and chemical treatment step
Salt-free water, to reduce salt concentration.Give birth to owing to needing afterwards to introduce the water in kind of the wetland being implanted with plant
Thing purifies, and the tolerance of salt concentration is had certain limitations by plant, therefore, if walked through physical treatment
Suddenly the salinity in industrial wastewater and after chemical treatment step remains unchanged the highest, if the tolerance limit of plant,
Salt-free water is added in step s 103 so that salt concentration is reduced to the level that plant can be tolerated in waste water.
S104. biological cleaning step, the high salinity industrial wastewater after diluting is incorporated into plant and is implanted with the artificial of purifying plant
In wetland.In biological cleaning step, plant be implanted with the artificial swamp of purifying plant be divided into first class purification district, two grades clean
Hua Qu and three grades of purifying areas, wherein the depth of water in first class purification district is 0.1-0.3 rice, and the depth of water in secondary purification district is 0.3-0.6
Rice, the depth of water of three grades of purifying areas is 0.6-1 rice.Different plants is planted, such as one in different grades of purifying area
In individual embodiment, in first class purification district, the purifying plant of plantation includes wilson iris, aquatic Canna generalis Bailey and Herba Lythri Salicariae,
In secondary purification district, the purifying plant of plantation includes Herba Scirpi Tabernaemontani, narrow leaf Herba Typhae, common cattail, phragmites communis and Flos Nelumbinis, three
In level purifying area, the purifying plant of plantation includes Flos nymphaeae (Nymphaea teragona Georgi).
S105. from the water circulation system of artificial swamp, collect the industrial wastewater through biological cleaning.Through biological cleaning
The water quality of waste water can be discharged in the natural water of periphery, it is also possible to recycling.
Use the biological cleaning processing method of the industrial wastewater of the present invention, the industrial wastewater after physics, chemical treatment
It is imported in artificial swamp, utilizes the plant being planted in artificial swamp to carry out biological cleaning, after biological cleaning
Waste water basically reach the water quality in natural water, both can be with safety dumping, it is also possible to recycling.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (5)
1. the biological cleaning processing method of an industrial wastewater, it is characterised in that including: physical treatment step,
Remove the float in high salinity industrial wastewater and oil film；Chemical treatment step, removes high salinity industry
Dissolving in waste water and colloid pollution thing；Dilution step, walks to through physical treatment step and chemical treatment
Rapid high salinity industrial wastewater adds salt-free water, to reduce salt concentration；Biological cleaning step,
High salinity industrial wastewater after dilution is incorporated in kind of the artificial swamp being implanted with purifying plant；From Manual moist
The water circulation system on ground collects the industrial wastewater through biological cleaning.
2. the biological cleaning processing method of industrial wastewater as claimed in claim 1, it is characterised in that described
Physical treatment step includes: use mechanical agitation and deposition to remove the float in high salinity industrial wastewater；
Gravitational separation process is used to remove the oil film in high salinity industrial wastewater.
3. the biological cleaning processing method of industrial wastewater as claimed in claim 1, it is characterised in that described
Chemical treatment step includes: adds coagulant, solid-liquid separation after precipitation in high salinity industrial wastewater, removes
Go solids.
4. the biological cleaning processing method of industrial wastewater as claimed in claim 1, it is characterised in that described life
In thing purifying step, kind is implanted with the artificial swamp of purifying plant and is divided into first class purification district, secondary purification district and three
Level purifying area, wherein the depth of water in first class purification district is 0.1-0.3 rice, and the depth of water in secondary purification district is 0.3-0.6 rice,
The depth of water of three grades of purifying areas is 0.6-1 rice.
5. the biological cleaning processing method of industrial wastewater as claimed in claim 4, it is characterised in that described life
In thing purifying step, in first class purification district, the purifying plant of plantation includes wilson iris, aquatic Canna generalis Bailey and thousand
Bend dish, in secondary purification district plantation purifying plant include Herba Scirpi Tabernaemontani, narrow leaf Herba Typhae, common cattail, phragmites communis and
Flos Nelumbinis, in three grades of purifying areas, the purifying plant of plantation includes Flos nymphaeae (Nymphaea teragona Georgi).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352996.1A CN105906147A (en) | 2016-05-26 | 2016-05-26 | Biological purification treatment method of industrial wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352996.1A CN105906147A (en) | 2016-05-26 | 2016-05-26 | Biological purification treatment method of industrial wastewater |
Publications (1)
| Publication Number | Publication Date |
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| CN105906147A true CN105906147A (en) | 2016-08-31 |
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ID=56742274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352996.1A Pending CN105906147A (en) | 2016-05-26 | 2016-05-26 | Biological purification treatment method of industrial wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100004448A1 (en) | 2021-02-25 | 2022-08-25 | Eni Spa | PROCEDURE FOR THE TREATMENT OF WASTEWATER WITH HIGH SALT CONTENT |
-
2016
- 2016-05-26 CN CN201610352996.1A patent/CN105906147A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100004448A1 (en) | 2021-02-25 | 2022-08-25 | Eni Spa | PROCEDURE FOR THE TREATMENT OF WASTEWATER WITH HIGH SALT CONTENT |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160831 |
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| WD01 | Invention patent application deemed withdrawn after publication |