CN104925952A - Method for building artificial wetland capable of treating high-salinity industrial wastewater - Google Patents
Method for building artificial wetland capable of treating high-salinity industrial wastewater Download PDFInfo
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- CN104925952A CN104925952A CN201510313505.8A CN201510313505A CN104925952A CN 104925952 A CN104925952 A CN 104925952A CN 201510313505 A CN201510313505 A CN 201510313505A CN 104925952 A CN104925952 A CN 104925952A
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- water
- salinity
- trade effluent
- industrial wastewater
- artificial swamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention provides a method for building an artificial wetland capable of treating high-salinity industrial wastewater. The artificial wetland comprises water, soil and vegetation, industrial wastewater with the salinity of 4500 mg/L or below can be introduced into water, and the vegetation comprises reeds, scirpus tabernaemontani, cattails and water lily. In the germination and withering stages of reeds, scirpus tabernaemontani, cattails and water lily, the salinity of the introduced industrial wastewater has to be controlled within 2000 mg/L; in the growing peak stage of reeds, scirpus tabernaemontani, cattails and water lily, the salinity of the introduced industrial wastewater has to be controlled within 4500 mg/L. Through researches on water plants or wetland plants, reeds, scirpus tabernaemontani, cattails and water lily are optimally selected as main vegetation for building the artificial wetland, so that the artificial wetland capable of using high-salinity industrial wastewater as the water source can be built. The built artificial wetland can convert and purify high-salinity industrial wastewater by dependency on the salt-tolerant plants, so that the industrial wastewater can meet the national surface-water environment quality standards.
Description
Technical field
The present invention relates to environment protection or plant ecological technical field, specifically, is a kind of building method that can process the artificial swamp of supersalinity trade effluent.
Background technology
Environment protection is the current dark industry paid close attention to by people.Wastewater treatment is then one of important content of efforts at environmental protection.The heavy dependence of modern society to oil makes petrochemical complex and Fine Chemical develop rapidly.But the wastewater from chemical industry that petroleum chemical industry upstream and downstream firms produces has the features such as chemical oxygen demand (COD) (COD) is high, salinity is high, toxicity is large more, it is the trade effluent of typical needs improvement at present.
Ecological protection is the most basic main content in environment protection.Ecology has the effect of " self-cleaning " to a certain degree, and good artificial swamp can play very positive effect to ecological protection.Therefore, setting up Constructed Wetland Ecological Environment is also the field that current environmentalist pays special attention to.
Artificial swamp is the ecotope formed with certain water surface, soil, vegetation and microorganism, due to water and vegetation acting in conjunction and there is stronger " self-cleaning " act on, cleaning action can be played to sewage to a certain degree.
Artificial swamp mainly relies on waterplant to the cleaning action of sewage, and stem stalk or root system surrounding biologic film and the microorganism relevant to these plants decompose the pollutent in sewage, adsorb and absorb under water, while not hindering plant-growth and microbial proliferation, utilize or remove the pollutent in water.
The trade effluent of supersalinity has the effect such as Ion toxicity and osmotic stress to the plant in wetland or artificial swamp.The increase of waste water salinity, can raise the osmotic stress of plant, and cause plant blade area to reduce and stomatal frequency minimizing, transpiration such as to weaken at the change of morphology and physiologic character, thus affects the activity of root system of plant and ambient microorganisms.In addition, waste water too high in salinity also can make microorganism cells dehydration in wetland and dead, affects " self-cleaning " effect of artificial swamp.And once " self-cleaning " effect of wetland is destroyed, then to recover to be very difficult.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of building method that can process the artificial swamp of supersalinity trade effluent is provided, it mainly selects salt-tolerant plant to form artificial swamp, the trade effluent of supersalinity can be introduced as water source, it is the view of human residential environment, be again the facility of trade effluent of process supersalinity, the trade effluent acting on supersalinity through " self-cleaning " of artificial swamp can reach the quality standard of national surface water environment.
For achieving the above object, this invention takes following technical scheme.
A kind of building method that can process the artificial swamp of supersalinity trade effluent, containing the water surface, soil and vegetation, it is characterized in that, the described water surface can introduce salinity at 4500mg/L and following trade effluent, and described vegetation comprises reed, Scirpus tabernaemontani, cattail and water lily.
Optionally, at the growth phase that described reed, Scirpus tabernaemontani, cattail are different with water lily, salinity can be introduced at 4500mg/L and trade effluent that is following, different salinity scope.
Optionally, at germination period and the withering period of described reed, Scirpus tabernaemontani, cattail and water lily, the salinity introducing trade effluent should control within 2000mg/L.
Optionally, in the growth most productive period of described reed, Scirpus tabernaemontani, cattail and water lily, the salinity introducing trade effluent should control 4500mg/L and within.
Positively effect of the present invention is:
(1) pass through research that is aquatic or wetland plant, reed, Scirpus tabernaemontani, cattail and water lily four class salt-tolerant plant are optimized, and using them as the main vegetation setting up artificial swamp, can set up can utilize supersalinity trade effluent as the artificial swamp at water source, expand and scope utilized to water.
(2) artificial swamp set up relies on salt-tolerant plant to transform the trade effluent of supersalinity and to purify, and makes the trade effluent of supersalinity can reach the quality standard of national surface water environment through the conversion of artificial swamp and purification.
(3) described salt-tolerant plant source is wide, and price is honest and clean, plantation and easy to maintenance, can utilization set up corresponding artificial swamp in petroleum chemical industry upstream and downstream firms concentrated area, can beautify the environment, can utilize, administer and purify again the trade effluent of supersalinity.Belong to a kind of means relatively reasonably utilizing and administer trade effluent.
Embodiment
Below continue to introduce the embodiment that the present invention can process the building method of the artificial swamp of supersalinity trade effluent, 2 specific embodiments are provided.But it is noted that enforcement of the present invention is not limited to following embodiment.
Can process a building method for the artificial swamp of supersalinity trade effluent, the water surface containing larger area, soil and vegetation, the described water surface can introduce salinity at below 4500mg/L trade effluent.Described vegetation comprises reed, Scirpus tabernaemontani, cattail and water lily.
The present invention investigates and have studied reed, Scirpus tabernaemontani, again power flower, aquatic Canna generalis Bailey, giantreed, water lily, lotus, cattail and the upgrowth situation of Spiked Loosestrife 9 kinds of salt tolerance wetland waterplant in the trade effluent of salinity lower than 1000mg/L, found that: power flower, giantreed and lotus cannot be survived in described trade effluent again; Aquatic Canna generalis Bailey and Spiked Loosestrife can survive one month in described trade effluent; Reed, Scirpus tabernaemontani, cattail and water lily then normally can grow for a long time in described trade effluent.
The present invention studies the particular case that reed, Scirpus tabernaemontani, cattail and water lily grow in described trade effluent again, be 500 ~ 1000mg/L, 1000 ~ 2000mg/L by the salinity of biochemical treatment premenstruum, 2000 ~ 3500mg/L, 3500 ~ 5000mg/L, 5000 ~ 6000mg/L trade effluent enter the parallel artificial swamp environment of introducing five respectively, investigate the plant-growth situation of five Parallel artificial's wetlands respectively.Found that: at the growth phase that reed, Scirpus tabernaemontani, cattail are different with water lily, e.g., germination period, growth most productive period and withering period, its salt tolerance is different.When water inlet salinity is within 6000mg/L, the reed in artificial swamp, Scirpus tabernaemontani, cattail and water lily can normal germination and growths.At germination period and the withering period of reed, Scirpus tabernaemontani, cattail and water lily, when intake salinity within 2000mg/L time, the effluent quality of artificial swamp can meet the quality standard of national surface water environment.In the growth most productive period of reed, Scirpus tabernaemontani, cattail and water lily, when intake salinity within 4500mg/L time, the effluent quality of artificial swamp can meet the quality standard of national surface water environment.
Therefore, the present invention have selected reed, Scirpus tabernaemontani, cattail and water lily four kinds of salt-tolerant plants and using them as the main vegetation setting up artificial swamp in multiple aquatic or wetland plant, make built artificial swamp that the trade effluent of supersalinity can not only be utilized as water source, and have improvement and cleaning action to the trade effluent of supersalinity, make the trade effluent of supersalinity can reach the quality standard of national surface water environment through the purification of the utilization of artificial swamp.
2 specific embodiments are below provided.
embodiment 1
The building method of the artificial swamp of supersalinity trade effluent can be processed:
Be 2000m a floor space
2scope build artificial swamp, water intake mode is a water inlet, other end water outlet, plants reed, Scirpus tabernaemontani, cattail and water lily Four Plants according to the allocation plan of artificial swamp.
At germination period and the withering period of reed, Scirpus tabernaemontani, cattail and water lily, by biochemical treatment premenstruum, salinity within 2000mg/L, the nutrient concentrations of nitrogen and phosphorus is the introduction water source of (oil and fine chemistry industry) trade effluent as artificial swamp of 60 ~ 90mg/L respectively at 4 ~ 20 mg/L and 0.4 ~ 0.9 mg/L, COD content.
In the growth most productive period of reed, Scirpus tabernaemontani, cattail and water lily, then by biochemical treatment premenstruum, salinity within 4500mg/L, the nutrient concentrations of nitrogen and phosphorus is the introduction water source of (oil and fine chemistry industry) trade effluent as artificial swamp of 60 ~ 90mg/L respectively at 4 ~ 20 mg/L and 0.4 ~ 0.9 mg/L, COD content.
Run 2 years continuously as stated above.
In 2 years that run, detect wetland effluent situation in water outlet place of artificial swamp:
COD, TP and TN of artificial wetland effluent are respectively 12 ~ 32mg/L, 0.02 ~ 0.35mg/L and 0.7 ~ 1.7mg/L.These data show: the water outlet of described artificial swamp meets the Vth class of China national water environment quality standard.
embodiment 2
The scope being 22 hectares a floor space builds artificial swamp, and water intake mode is a water inlet, other end water outlet, and reed, Scirpus tabernaemontani, cattail and water lily Four Plants are planted in the allocation plan according to artificial swamp.
Other construction and content of operation are with embodiment 1.Continuous operation 3 years.
In 3 years that run, detect wetland effluent situation in water outlet place of artificial swamp:
COD, TP and TN of artificial wetland effluent are respectively 12 ~ 38mg/L, 0.02 ~ 0.39mg/L and 0.8 ~ 1.9mg/L.These data show: the water outlet of described artificial swamp meets the Vth class of China national water environment quality standard.
Embodiment 1 and embodiment 2 prove: adopt method of the present invention can set up the artificial swamp that can process supersalinity trade effluent, can utilize the trade effluent of supersalinity, can described trade effluent be transformed and be purified again, make described trade effluent reach the quality standard of national surface water environment through the conversion of artificial swamp and purification, thus reach the object of energy-saving and emission-reduction.
Claims (4)
1. one kind can process the building method of the artificial swamp of supersalinity trade effluent, containing the water surface, soil and vegetation, it is characterized in that, the described water surface can introduce salinity at 4500mg/L and following trade effluent, and described vegetation comprises reed, Scirpus tabernaemontani, cattail and water lily.
2. can process the building method of the artificial swamp of supersalinity trade effluent according to claim 1, it is characterized in that, at the growth phase that described reed, Scirpus tabernaemontani, cattail are different with water lily, salinity can be introduced at 4500mg/L and trade effluent that is following, different salinity scope.
3. can process the building method of the artificial swamp of supersalinity trade effluent according to claim 2, it is characterized in that, at germination period and the withering period of described reed, Scirpus tabernaemontani, cattail and water lily, the salinity introducing trade effluent should control within 2000mg/L.
4. can process the building method of the artificial swamp of supersalinity trade effluent according to claim 2, it is characterized in that, in the growth most productive period of described reed, Scirpus tabernaemontani, cattail and water lily, the salinity introducing trade effluent should control 4500mg/L and within.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510313505.8A CN104925952A (en) | 2015-06-10 | 2015-06-10 | Method for building artificial wetland capable of treating high-salinity industrial wastewater |
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| CN201510313505.8A CN104925952A (en) | 2015-06-10 | 2015-06-10 | Method for building artificial wetland capable of treating high-salinity industrial wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776554A (en) * | 2016-03-28 | 2016-07-20 | 舟山光大检测研究院有限公司 | Method for screening and arranging constructed wetland plants for saline wastewater treatment during ship repairing and building |
| CN117147253A (en) * | 2023-08-25 | 2023-12-01 | 广东省农业科学院农业质量标准与监测技术研究所 | Research method for perchlorate degradation in canna wetland system |
-
2015
- 2015-06-10 CN CN201510313505.8A patent/CN104925952A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776554A (en) * | 2016-03-28 | 2016-07-20 | 舟山光大检测研究院有限公司 | Method for screening and arranging constructed wetland plants for saline wastewater treatment during ship repairing and building |
| CN105776554B (en) * | 2016-03-28 | 2019-05-21 | 舟山光大检测研究院有限公司 | The screening and configuration method of constructed wetland plant for the processing of Ship Building and Repairing saline sewage |
| CN117147253A (en) * | 2023-08-25 | 2023-12-01 | 广东省农业科学院农业质量标准与监测技术研究所 | Research method for perchlorate degradation in canna wetland system |
| CN117147253B (en) * | 2023-08-25 | 2024-06-04 | 广东省农业科学院农业质量标准与监测技术研究所 | Method for measuring perchlorate concentration in canna wetland system |
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Application publication date: 20150923 |