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Combination process and device for deep purification of contaminated surface water

A technology of deep purification and combined device, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Effect

Inactive Publication Date: 2012-05-23
北京市水利科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies in technicality and pertinence in the process of purifying micro-polluted river water in the existing individual processes such as biological filters and aerated biological activated carbon filters, and provide a high-efficiency biological filter including multi-layer filter materials- Bio-enhanced anoxic biological filter-coagulation sedimentation-pre-ozone-aerobic bio-enhanced activated carbon filter combined process method and device for deep purification of polluted surface water

Method used

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  • Combination process and device for deep purification of contaminated surface water
  • Combination process and device for deep purification of contaminated surface water
  • Combination process and device for deep purification of contaminated surface water

Examples

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Embodiment 1

[0058] The raw water is the polluted river water of a certain experimental river section in the Beijing area, and the above-mentioned device of the present invention is used to treat sewage, and the hydraulic load is 30m 3 / m 2 .d. At the initial stage of operation, high-efficiency engineering bacteria agents (Shenzhen Bosheng Biological Clean natural microbial agent CNM) produced by Science and Technology Co., Ltd., the dosing ratio is 6-8g agent / L, 6-8g agent / L and 1.2-1.4g agent / L, and the engineering agent is domesticated : The engineering bacteria agent is filled in layers. At the initial stage of cultivation, the concentration of CODCr in the reactor is adjusted to 500-600mg / L, and the concentration of DO is controlled at 3-5mg / L. The multi-layer filter material high-efficiency biological filter reactor 2 and the bio-augmented anoxic bio-filter reactor 3 realize continuous water inflow and outflow, and the aerobic bio-enhanced activated carbon filter reactor 6 alone co...

Embodiment 2

[0070] The raw water is heavily polluted river water in an experimental section of the Beijing area, and the device of the present invention is used to treat sewage, with a hydraulic load of 20m 3 / m 2 d. At the initial stage of operation, high-efficiency engineering bacteria agents (Shenzhen Bosheng Biological The clean natural microbial bacterial agent (CNM) produced by Science and Technology Co., Ltd., the dosage ratio is respectively 7~10g bacterial agent / L, 7~10g microbial bacterial agent / L and 1.2~1.4g microbial bacterial agent / L, domestication method is identical with embodiment 1 .

[0071] Raw water is lifted from the reservoir by the inlet pump and sent to the high-efficiency biological filter reactor with multi-layer filter material. The dissolved oxygen concentration outside the packing layer is controlled at 2-3 mg / L, and the dissolved oxygen concentration inside the packing layer is controlled at 0.5-2 mg / L. The pH value is 6~8, the temperature is 5~35℃, and t...

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Abstract

The invention relates to a combination device for the deep purification of contaminated surface water using reclaimed water and sewage as main water sources. The combination device comprises a multi-layer filter material high-efficiency biological filter reactor, a biologically-enhanced anoxic biological filter reactor, a coagulative precipitation tank, an ozone contact tank and an aerobic biologically-enhanced activated carbon filter reactor which are sequentially connected. The invention also discloses a method for purifying water by using the device, which comprises the following steps: sewage is pumped through a pipeline into the multi-layer filter material high-efficiency biological filter filled with two porous suspension type fillers to be subject to synchronous nitration and denitrification reactions; then, the sewage flows into the biologically-enhanced anoxic biological filter reactor to be subject to a biochemical reaction under the anoxic conditions; subsequently, a treating fluid is added into the coagulative precipitation tank to remove most of suspended substances and part of organic substances under the action of a coagulating agent; the supernate of the precipitation tank flows into the ozone contact tank and then flows into the aerobic biologically-enhanced activated carbon filter reactor after ozone oxidation, and pollutants are adsorbed by activated carbon and are simultaneously degraded by enhanced aerobes; and ultimately, the outlet water from the filter tank flows into a clean water tank.

Description

technical field [0001] The invention relates to a polluted surface water purification treatment technology, in particular to a multi-layer filter material high-efficiency biological filter-biologically enhanced anoxic biological filter-coagulation sedimentation-pre-ozone-aerobic biologically enhanced activated carbon filter reactor Combination process technology. Background technique [0002] With the rapid development of society and economy, especially the increase in global water demand has led to the shortage of water resources in the world and the aggravation of water pollution. Human beings have become increasingly urgent for the utilization of renewable water resources and the improvement of urban water environment, and there is an urgent need for polluted surface water. The research and development of purification technology is used to restore the functional requirements of rivers and lakes, improve the utilization rate of water resources in the river basin and build ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 廖日红申颖洁战楠李其军高振宇孟庆义
Owner 北京市水利科学研究所
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