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Water treatment system and treatment method for settling algae pond-phycomycetes symbiotic ecological plate slot-biofilter

A technology of water treatment system and symbiosis of algae and bacteria, which is applied in biological water/sewage treatment, sedimentation treatment, filtration treatment, etc. It can solve the problem that the treated water cannot meet the standard of surface third-grade water, the treatment effect is unstable, and the energy consumption of the treatment process Large and other problems, to achieve the effect of fast reproduction, simple construction, and low environmental requirements

Inactive Publication Date: 2019-03-01
ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional biological sewage treatment methods such as activated sludge method have a good effect on removing organic matter and suspended solids in polluted water, but the treatment process consumes a lot of energy, and the treatment effect of total phosphorus and total nitrogen is unstable; a large amount of sludge will be produced during the treatment process. It brings about the problem of high sludge treatment and disposal costs; and there are odor and other gas pollution in the sludge treatment process; in addition, more equipment and more difficult management are also the shortcomings of this treatment process
[0005] The research progress of water purification by algae-bacteria symbiosis system (Modern Agricultural Science, Issue 4, 2016, Xiong Yunwu, etc.) pointed out that water quality can be purified by algae-bacteria symbiosis system, but this treatment method only performs one-step treatment, and the obtained treated water cannot reach the surface Level 3 water standard

Method used

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  • Water treatment system and treatment method for settling algae pond-phycomycetes symbiotic ecological plate slot-biofilter
  • Water treatment system and treatment method for settling algae pond-phycomycetes symbiotic ecological plate slot-biofilter

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Embodiment 1

[0052] Artificially prepared sewage, COD (glucose) 200mg / L, ammonia nitrogen 10mg / L, inorganic phosphorus 5mg / L, yeast extract 20mg / L.

[0053] The sewage treatment method in the present embodiment, comprises the following steps:

[0054] 1) Sewage enters the sedimentation algae pond for sedimentation and decontamination treatment; the coverage rate of rhizome algae in the sedimentation algae pond is 90%, and the water depth is 25cm;

[0055] 2) The effluent from the sedimentation algae pool enters the algae-bacteria symbiosis ecological plate tank for degradation and decontamination treatment; the algae-bacteria symbiosis ecological plate tank has a length of 4M, a water depth of 6cm, and a water replacement rate of 25% / hr;

[0056] 3) The effluent from the algae-bacteria symbiotic ecological plate tank enters the microbial filter for filtration and decontamination treatment. The anaerobic pool of the microbial filter is 1M high, and the water is submerged. The flow rate is 1...

Embodiment 2

[0061] Using sewage river water, after centrifugation, the measured COD is 155mg / L, containing 32mg / L of ammonia nitrogen (undigested), 8.3mg / L of nitrate nitrogen (undigested), and 3.2mg / L of inorganic phosphorus (undigested).

[0062] The sewage treatment method in the present embodiment, comprises the following steps:

[0063] 1) Sewage enters the filamentous algae filter bed for filtration treatment; the thickness of the filamentous algae filter bed in the filamentous algae filter pool is 3cm;

[0064] 2) The effluent from the filamentous algae filter bed enters the sedimentation algae pond for sedimentation and decontamination treatment; the coverage rate of rhizome algae in the sedimentation algae pond is 90%, and the water depth is 25cm; / hr;

[0065] 3) The effluent from the sedimentation algae pool enters the algae symbiosis ecological plate tank for degradation and decontamination treatment;

[0066] 4) The effluent from the algae-bacteria symbiotic ecological plat...

Embodiment 3

[0071] Fish farming sewage is used, which contains a large amount of microalgae and cyanobacteria. After centrifugation, the measured COD is 240mg / L, ammonia nitrogen is 2mg / L (undigested), and inorganic phosphorus is 0.7mg / L (undigested).

[0072] The sewage treatment method in the present embodiment, comprises the following steps:

[0073] 1) Sewage enters the filamentous algae filter bed for filtration treatment; the thickness of the algae in the filamentous algae filter pool is 3cm;

[0074] 2) The effluent from the filamentous algae filter bed enters the sedimentation algae pond for sedimentation and decontamination treatment; the coverage rate of rhizome algae in the sedimentation algae pond is 90%, and the water depth is 25cm;

[0075] 3) The effluent from the sedimentation algae pool enters the algae-bacteria symbiosis ecological plate tank for degradation and decontamination treatment; the algae-bacteria symbiosis ecological plate tank has a length of 4M, a water dept...

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Abstract

The invention relates to a water treatment system and a treatment method for settling algae pond-phycomycetes symbiotic ecological plate slot-biofilter. The water treatment system is provided with thesettling algae pond, the phycomycetes symbiotic ecological plate slot and the biofilter successively according to the water inflow direction. Silkweed grows in the settling algae pond in a floating manner for removing element such as nitrogen and phosphorus in sewage. In addition, the settling algae pond also can remove impurities such as particulates and suspended solids in water through settlement action. The phycomycetes symbiotic ecological plate slot is naturally formed by a shallow and long pond with silkweed. Algae growing in a floating manner, such as microorganisms and aquatic insects, and organic matters and part of nitrogen and phosphorus in a water body are removed primarily. Aerobiotic / anaerobic microorganisms grow on a film in a biofilter, so that organic matters in water can be further removed, and the impurities are filtered.

Description

technical field [0001] The invention relates to a water treatment system and a treatment method of a sedimentation algae pool-algae-bacteria symbiosis ecological plate tank-microbial filter, and belongs to the technical field of sewage treatment. Background technique [0002] Algae have a unique metabolic method, which can use solar energy and inorganic substances to synthesize their own organisms through photosynthesis, and can also absorb organic substances as carbon and energy sources, and at the same time absorb a large amount of nitrogen and phosphorus. Filamentous algae can easily move out of the water body and take away these nutrients. Therefore, the use of algae to treat sewage can overcome the disadvantages of traditional sewage treatment methods such as secondary pollution, potential nutrient loss, and incomplete utilization of resources. Algae can effectively and cost-effectively remove nitrogen, phosphorus and other nutrients that cause water eutrophication . ...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/30C02F101/20
CPCC02F1/286C02F3/30C02F3/32C02F1/001C02F2101/20C02F2001/007
Inventor 吴健曾辉刘巧林刘絮
Owner ZHENGZHOU UNIV
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