River treatment system based on micro-nano oxygenation-aeration and biological purification effect

A bio-purification, micro-nano bubble technology, applied in biological water/sewage treatment, water aeration, polluted waterway/lake/pond/river treatment, etc., can solve serious secondary pollution, high engineering cost and low efficiency and other problems to achieve the effect of restoring ecological balance, preventing water backflow, and saving labor.

Inactive Publication Date: 2017-08-04
BEIJING ZHONGNONG TIANLU MICRO NANO BUBBLE WATER S&T
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a new type of high-efficiency micro-nano oxygen-increasing aeration and biological Purification effect of river management system

Method used

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  • River treatment system based on micro-nano oxygenation-aeration and biological purification effect
  • River treatment system based on micro-nano oxygenation-aeration and biological purification effect

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specific Embodiment 1

[0057] A river aeration project in Beijing

[0058] The river is 800 meters long, 16 meters wide, and about 1.5 meters deep. The water quality is poor, with obvious odor, low transparency (about 10-20cm), and relatively turbid water. The dissolved oxygen is about 0.2mg / L, the pH is 7.95, the COD is 160mg / L, the total nitrogen is 80mg / L, and the total phosphorus is about 6mg / L. Use the system of the present invention to process for a period of time, and the water quality is significantly improved. The specific steps are as follows:

[0059] (1) Install the water intake pipeline 11 at a distance of 0.3-0.5m from the river bank, and the water intake point should be 0.5-0.6m below the water surface. Grille 1 is installed on the periphery of the water intake pipe to filter large particles and impurities in the river water to avoid blocking the water pump.

[0060] (2) The bottom end of the pump inlet pipe 12 is provided with a bottom valve 2 to filter small solid particles and av...

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Abstract

The invention relates to a river treatment system based on micro-nano oxygenation-aeration and biological purification effect. The river treatment system comprises a preliminary filtering device, a water storage tank, a host of a rapid micro-nano bubble generating device, an oxygenation device, a micro-nano bubble aerator and a solid-state microbial carrier, wherein the preliminary filtering device, the water storage tank, the host of the rapid micro-nano bubble generating device and the micro-nano bubble aerator are successively communicated with each other via pipelines; the oxygenation device is communicated with the host of the rapid micro-nano bubble generating device; and the solid-state microbial carrier is fixedly connected with an aeration pipeline of the micro-nano bubble aerator. The river treatment system provided by the invention cooperatively uses the rapid micro-nano bubble generating device and the oxygenation device for oxygenation of a river; and microbial purification in the aeration pipeline is cooperatively carried out so as to reduce the biochemical oxygen demand (BOD) and the contents of total nitrogen (TN) and total phosphorus (TP) and to allow ecological equilibrium of the river to be recovered.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a river channel management system based on micro-nano aeration and biological purification effects. Background technique [0002] The phenomenon of black and odorous rivers is a common pollution problem in my country at this stage, which leads to the reduction of river area, serious environmental pollution, destruction of river ecosystem, loss of self-purification ability, deterioration of hydrological characteristics, simplification or complete disappearance of river functions, etc. In order to improve the water quality of the river and restore the ecological and social functions of the river, there are currently some targeted methods: [0003] Sediment dredging: mainly through engineering methods to remove pollutants (sediment) accumulated on the riverbed to ensure that the riverbed environment is improved. However, this method will use large-scale construction machiner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/24C02F3/02C02F3/32C02F3/34C02F7/00C02F9/00C02F2103/007
Inventor 张天柱吴娜薛晓莉杨文华张慧娟赵跃钢任强
Owner BEIJING ZHONGNONG TIANLU MICRO NANO BUBBLE WATER S&T
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