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System for cultivating microalgae with waste water

A technology for microalgae and waste water, which is applied in the field of systems for culturing microalgae by using waste water, can solve the problems of increasing the cost of microalgae cultivation, consuming large energy, and consuming large water sources, saving water and energy, being beneficial to environmental protection, and reducing cost effect

Active Publication Date: 2010-02-10
ENN SCI & TECH DEV
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  • Abstract
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  • Application Information

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Problems solved by technology

The method of controlling the suitable temperature range of microalgae cultivation in the prior art not only consumes a large amount of water but also consumes a large amount of energy, which increases the cost of microalgae cultivation

Method used

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  • System for cultivating microalgae with waste water
  • System for cultivating microalgae with waste water
  • System for cultivating microalgae with waste water

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Embodiment Construction

[0021] The method and device in the embodiment of the present invention will be described below with reference to the accompanying drawings. The drawings are only used to help understand the solutions of the embodiments, and may not be limited to the forms shown in the drawings in various implementations.

[0022] The waste water used in the embodiment of the present invention is chemical plant waste water. The industrial wastewater discharged from chemical plants (especially coal chemical plants) usually has an outlet temperature of 30-35°C and contains a large amount of inorganic salts such as nitrogen and phosphorus. By adopting the technical solution of the invention, the thermal energy of the waste water can be utilized, and the inorganic salts such as nitrogen and phosphorus in the waste water can be used for microalgae culture, thereby reducing the cost of microalgae culture and being conducive to environmental protection.

[0023] The cultivation of microalgae is carr...

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Abstract

The invention discloses a system for cultivating microalgae with waste water, comprising a water source heat pump, a temperature control device, a heat exchange pipeline, and a waste water treatment device, wherein the water source heat pump is used for obtaining heat energy from the input waste water and storing, and the heat energy from the input waste water is used for heating or refrigeratingthe input water; the temperature control device is used for detecting environment temperature of a microalgae cultivation room and effluent water temperature; the heat exchange pipeline is used for accepting the water output by the water source heat pump and carrying out heat exchange with the microalgae cultivation room; and the waste water treatment device is used for carrying out further treatment on the waste water flowing out of the water source heat pump, the heat exchange pipeline and / or a water curtain and inputting to each photobioreactor. The invention realizes utilizing waste waterto control the proper temperature range of microalgae cultivation and inputting to each photobioreactor, and utilizing waste water to provide culture solution for microalgae cultivation.

Description

technical field [0001] The invention relates to microalgae cultivation technology, in particular to a system for cultivating microalgae by utilizing waste water. Background technique [0002] A large amount of water is required in the process of microalgae cultivation. On the one hand, the culture solution of microalgae needs to consume a large part of the water source. On the other hand, because the cultivation of microalgae requires a suitable temperature, in high temperature weather, it is necessary to pass a large amount of hot water into the heating device of the microalgae cultivation room. In low temperature weather, it is necessary to pass a large amount of cold water into the refrigeration device of the microalgae cultivation room, and to maintain the suitable temperature range for microalgae cultivation by exchanging heat with the microalgae cultivation room. [0003] In order to solve the problem that the microalgae culture medium needs to consume a large part of...

Claims

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Application Information

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IPC IPC(8): C12M1/38C12M1/02C12M1/36C12R1/89
CPCC12M21/02C12M41/12C12M41/18
Inventor 张晋阳郭朋朋耿金峰马欣欣刘敏胜
Owner ENN SCI & TECH DEV
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