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Water biological remediation method and device

A technology for water organisms and generating devices, applied in water pollutants, sustainable biological treatment, chemical instruments and methods, etc., can solve problems such as human and animal toxicity, environmental pollution, and black and odorous water bodies.

Inactive Publication Date: 2017-08-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the water quality deteriorates, the water becomes black and smelly, the dissolved oxygen is depleted, the transparency is reduced, the fish dies, and it is toxic to humans and animals, which has formed a very serious environmental pollution problem.
[0003] The Chinese patent application with the application number 201010539843.0 discloses a method and system for the restoration and treatment of polluted river water. The Chinese patent application with the application number 201310006749.2 discloses a polluted water treatment system and its construction method. These two patent applications disclose The methods are all conventional sewage treatment methods to deal with water pollution control, with heavy workload, low efficiency and large investment

Method used

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  • Water biological remediation method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0036] use figure 1 There are two water body bioremediation devices with a power of 0.85kw and an oxygen increasing capacity of 1.2-3kg. To restore the water body in the cultured fish pond, the water body bioremediation device has a volume of 1 cubic meter. The device is placed on the bank of a pond with 5 mu of water surface, and the water is absorbed by the pump. After 2 months of treatment, ammonia nitrogen and nitrite are respectively reduced by 75% and 91.7%, and the dissolved oxygen content of the water body is DO≥4mg / L. The pH values, ammonia nitrogen and nitrite contents of the water before and after treatment are shown in Table 1. The main component of the filter material used in the embodiment is natural zeolite of 100 mesh to 200 mesh, and the solidified microbial agent is composed of photosynthetic bacteria, nitrifying bacteria, lactic acid bacteria and sulfur bacteria.

[0037] Table 1 Water body pH value, ammonia nitrogen and nitrite content before and after tr...

Embodiment 2

[0040] use figure 1Said two water body bioremediation devices, with a power of 2.2kw and an oxygen increasing capacity of 4.5-14 kg, repair black and odorous river channels with a width of 6 meters, a length of 500 meters, and a water depth of 0.8-1.2 meters. The water body bioremediation device has a volume of 4 cubic meters. After one month of treatment, the transparency of the water quality is greater than 25cm, and the dissolved oxygen content of the water body DO is greater than or equal to 2mg / L. Water BOD before and after treatment 5 , CODcr, SS, NH 3 -N, TN, TP contents are shown in Table 2. The main components of the filter material used in the examples are 30-80 mesh zeolite and volcanic rock, and the solidified microbial agent is composed of photosynthetic bacteria, thiobacteria, nitrifying bacteria, denitrifying bacteria, yeast, bacillus and other components.

[0041] Table 2 BOD of water body before and after treatment 5 , CODcr, SS, NH 3 -N, TN, TP content (...

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Abstract

The invention relates to a water biological remediation method and a water biological remediation device. The water biological remediation device comprises a micropore aeration oxygenation system, a carbon fiber ecological base, a composite microorganism generating device, a circular fluidifying activating flushing system and a box body; the micropore aeration oxygenation system is composed of a vortex fan, a micropore tubular aerator or an aeration oxygenation grid and a micropore aeration pipe; the box body is divided into four zones from bottom to top, and orderly provided with the micropore tubular aerator or the aeration oxygenation grid, the carbon fiber ecological base, the composite composite microorganism generating device, and the circular fluidifying activating flushing system. The water biological remediation device can be placed in polluted water body of river or lake; the biological remediation of black and odorous water body is carried out by using the natural water suction in aeration and water flow direction; or the device is placed on a mainland shore and performs the biological remediation on the black and odorous water body by means of pump suction.

Description

technical field [0001] The invention relates to a water body bioremediation method and device. Background technique [0002] With the rapid development of social economy, a large amount of industrial sewage, domestic sewage, and agricultural sewage are discharged, and various pollutants such as atmospheric deposition and precipitation runoff flow into water bodies to cause pollution. Excess nitrogen, phosphorus and heavy metals in rivers and lakes lead to algae blooms, and the original ecological balance and structure of the water body are destroyed. In recent years, frequent cyanobacteria disasters in my country's inland and coastal waters are water ecological disasters caused by eutrophication of water bodies caused by pollutant discharge. As a result, the water quality deteriorates, the water becomes black and smelly, the dissolved oxygen is depleted, the transparency is reduced, the fish dies, and it is toxic to humans and animals, which has formed a very serious enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C02F3/34C02F101/10C02F101/16
CPCC02F3/02C02F3/348C02F2101/105C02F2101/16Y02W10/10
Inventor 李广胜雷利荣李友明
Owner SOUTH CHINA UNIV OF TECH
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