Method for ectopically and ecologically repairing eutrophication water

A technology of eutrophication and ecological restoration, applied in chemical instruments and methods, biological water/sewage treatment, flotation water/sewage treatment, etc.

Inactive Publication Date: 2009-08-12
上海大祺环保工程有限公司
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However, there are very few reports on the use of microalgae to treat eutrophic water bodies, a...

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  • Method for ectopically and ecologically repairing eutrophication water

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and the embodiments given in the accompanying drawings. The manufacturing techniques of the present invention are easily implemented by those skilled in the art.

[0018] see figure 1 , the key equipment for ectopic ecological restoration of eutrophic water bodies adopts the air-push photobioreactor (air-push photobioreactor) that the inventor of this patent has applied for an invention patent. Chinese invention patent, application number: 200810039168.8; a micro Algae industrial production device and method for producing microalgae. Chinese invention patent, application number: 200810038075.3), also includes water collection well, grit chamber, regulating tank, hydrolysis tank, sand filter tank, disinfection tank, culture solution blending tank, three Level expansion equipment, air flotation tanks, spray drying towers and other production equipment. Among them, the man...

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Abstract

The invention relates to the environmental protection field and the microalga culturing engineering filed, and particularly relates to a method for repairing an eutrophication water body by ectopic ecology. A collecting well, a sand settling basin, an adjusting tank, a hydrolytic tank, a sterilizing tank, a culture fluid preparing tank, a large-scale air push type photo bioreactor and an air floating tank production device are adopted; the method is characterized in that the method comprises the following steps: preparing microalga culturing liquid by using eutrophication raw water; then culturing and collecting microalga by utilizing the eutrophication water body and carbon dioxide exhaust gas; and finally treating clear liquid collected by utilizing an ecological base after air float is collected, so that the water quality achieves above surface water type-V water standard. In the invention, the microalga is cultured by utilizing the eutrophication water body, the carbon dioxide exhaust gas and the like; nitrogen, phosphorous and other nutrient salts in the eutrophication water body can be largely absorbed during the growth process of the microalga, so as to achieve the purpose of repairing the eutrophication water body by the ectopic ecology.

Description

[technical field] [0001] The invention relates to the field of environmental protection and the field of microalgae cultivation engineering, in particular to a method for ectopic ecological restoration of eutrophic water body. [Background technique] [0002] Eutrophication refers to the phenomenon of water pollution caused by excessive plant nutrients such as nitrogen and phosphorus. These excess nutrients mainly come from livestock and poultry and aquaculture sewage, farmland fertilization, agricultural waste, urban domestic sewage, and industrial wastewater such as food processing and animal product processing. However, animal and plant residues have been deposited in the bottom mud of the water body for a long time, and under the action of spoilage bacteria, nutrients such as nitrogen and phosphorus are continuously released into the water body, becoming an endogenous source of pollution of the water body. When excess nutrients enter slow-flowing water bodies such as lak...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/32C02F3/34C02F1/24C02F1/50C02F1/32C02F1/66
Inventor 蔡志武
Owner 上海大祺环保工程有限公司
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