Riverway channel water quality biologically-intensifying device and application thereof

A bio-augmentation and ditch technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of not being able to use river purification well, and achieve easy adjustment and replacement, The effect of stabilizing processing efficiency and ensuring processing efficiency

Active Publication Date: 2010-12-15
江苏三强环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing moving bed biofilm reactor cannot be well used in river purification due to its structural characteristics, especially for the treatment of polluted water bodies in rivers and ditches under low temperature conditions.

Method used

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  • Riverway channel water quality biologically-intensifying device and application thereof
  • Riverway channel water quality biologically-intensifying device and application thereof
  • Riverway channel water quality biologically-intensifying device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Example 1 A water flow-driven bio-augmentation device was established in the channel (ditch) of Class IV water quality (according to the GB3838-2002 surface water environmental quality standard), and the biological rope filler and suspended filler were first rotated and hung in the filler area. After a month of film hanging, the intensification device enters the formal operation stage. The biofilm adsorbs the pollutants in the river. Through the removal of organic matter by the biological rope and the simultaneous denitrification of the suspended filler, the water quality of the river purified by the biological intensification device is purified. COD Reduce by 30% to 40%, N and P by 25% to 30%.

Embodiment 2

[0026] Example 2 A water flow-driven bio-augmentation device was established in the channel (ditch) of Class V and inferior Class V water quality (according to the GB3838-2002 surface water environmental quality standard), and multiple packing area units were applied in the vertical direction of the transfer axis 1. According to different Water depth and water quality, so that the upper and lower unit fillers are arranged in a staggered manner to achieve complementary advantages, and then the film is mounted. After the film is mature, it enters the stable operation stage, adsorbs and removes pollutants, enhances bio-enhancement, and reduces COD by 50%, N, P decreased by 25% to 35%.

Embodiment 3

[0027] Example 3 The installed bio-augmentation device is used in a small river channel (ditch) with a freezing period in winter. According to the thickness of the local ice layer, the height of the device is lowered to below the ice layer on the basis of the existing film formation and low temperature acclimation. , Under the circumstance that the shaft shell 2 is wrapped by the ice layer, the free rotation of the intermediate shaft 1 is ensured, the device is operated from normal temperature to low temperature, and the domesticated biofilm directly adsorbs and removes the pollutants, and the device operates normally, reaching the freezing period in winter. The effect of continuous purification of the river channel reduces COD by 20% to 25%, and N and P by 15% to 20%.

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Abstract

The invention provides a riverway channel water quality biologically-intensifying device and application thereof, belonging to the field of water treatment. The riverway channel water quality biologically-intensifying device comprises a transferring shaft and a filler area, wherein with the transferring shaft is positioned in the center of the riverway channel water quality biologically-intensifying device; the filler area encloses the transferring shaft. The riverway channel water quality biologically-intensifying device is characterized in that an upper fixed plate (3), a lower fixed plate and the transferring shaft (1) are integrated into a whole by taking the transferring shaft (1) as a center; an impeller (5) is fixed on the lower fixed plate; the filler area (4) is divided into fourregions through a grating sieve mesh (6), and biological fillers are filled in the regions. The integral riverway channel water quality biologically-intensifying device is driven to move by taking water flows as a driving force when being applied to the treatment of riverway channel water bodies, prevents the fillers from washing away by combining the fixed biological fillers with suspension fillers, can achieve the effective elimination and the synchrous denitrification of COD (Chemical Oxygen Demand), achieves the moving bed effect and also greatly enhances the mass transfer rate of nutrient substances and dissolved oxygen; and in addition, the riverway channel water quality biologically-intensifying device can carry out the treatment aiming at the pollution conditions of different water layers of riverway channels and also has the advantages of energy saving, environmental protection, low acquisition cost and operation cost, and the like.

Description

technical field [0001] The invention relates to a bio-enhancing device, in particular to a water-quality bio-enhancing device of a river channel and ditch and its application. Background technique [0002] The river ecosystem is a composite system, which consists of subsystems such as riparian ecosystem, water ecosystem, wetland and swamp ecosystem. Water conservancy engineering measures such as discharge of sewage into the river, excessive water use, crowding of river beaches, deforestation, introduction of alien species, and large-scale dam construction, reservoir construction, channelization, etc., will damage the health of the river ecosystem. Excessive water use and sewage discharge cause serious shortage of water or deterioration of water quality, which makes it difficult for most aquatic organisms to survive, which will lead to the collapse of river ecosystems. Various water conservancy projects will change the natural landform characteristics, hydrological and hydrau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/34
Inventor 任洪强牛川丁原红郭瑞昕
Owner 江苏三强环境工程有限公司
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