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Stage purification method for black and odorous river water

A graded purification and graded technology, applied in the field of graded black and odorous river water purification. The effect of increasing biomass

Inactive Publication Date: 2013-08-28
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, when purifying black and odorous river water, the requirements of saving carbon sources and reducing energy consumption have not been considered, nor have similar hierarchical design schemes been seen.

Method used

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  • Stage purification method for black and odorous river water

Examples

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Embodiment 1

[0023] Follow the steps below:

[0024] Step 1: Install Akeman material 4 in the first-level purification tank 1, second-level purification tank 2, and third-level purification tank 3. The material is a long strip of non-woven fabric, and one end is fixed at the bottom of the purification tank , and the other end swings freely in the water.

[0025] Step 2: Add photosynthetic bacteria and anammox bacteria in the first-stage purification tank 1, add sulfur-oxidizing bacteria in the second-stage purification tank 2 and install an oxygenation pump 5, and install an oxygenation pump 5 in the third-level purification tank 3 Add nitrifying bacteria and install oxygen pump 5 in the middle.

[0026] Step 3: The black and smelly river water enters the septic tank system in the order of the first-level septic tank 1 → the second-level septic tank 2 → the third-level septic tank 3, and the oxygenation pump 5 is turned on for the third-level septic tank 3. The effluent is sent to the he...

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Abstract

The invention provides a stage purification method for black and odorous river water. The method comprises the following steps: (1) carrying out first-stage preprocessing: adding photosynthetic bacteria and anaerobic ammonia oxidation bacteria in the black and odorous river water and enriching on surfaces of an Aquamats material to form biomembranes in natural light; (2) carrying out second-stageprocessing: adding sulfur-oxidizing bacteria in the black and odorous river water and enriching on the surfaces of the Aquamats material to carry out oxidation on sulphions and ferrousions under an aerobic condition; and (3) carrying out third-stage processing: adding nitrobacteria in the black and odorous river water and enriching on the surfaces of the Aquamats material to carry out nitration on ammonia nitrogen under the aerobic condition. The method has the advantages of high efficiency and stability of black and odorous river water purification, energy saving and low carbon.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and relates to a river water purification method, in particular to a graded black and odorous river water purification method, which is applied to water quality purification and habitat improvement of urban black and odorous medium and small rivers. Background technique [0002] At present, the service functions of urban inland rivers are mainly drainage, landscape, leisure and shipping. However, these water bodies are generally small, with insufficient hydrodynamic force, low environmental carrying capacity, high pollutant load, and are prone to black and odor, which affects the compliance of water environmental functions and social and economic value. Although methods such as water diversion, oxygenation, and coagulation can effectively purify black and odorous river water, these methods have the problems of secondary pollution, high energy consumption and material consumption...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/30C02F3/34C02F1/30
Inventor 黄民生童敏何岩李真
Owner EAST CHINA NORMAL UNIV
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