System for treating high concentrated organic wastewater by three-phase fluidized algae photobioreactor

Abstract

The invention relates to a high concentrated organic wastewater treatment system for a three-phase fluidization algae photobioreactor, which comprises a regulating reservoir and a reactor, wherein, the reactor comprises a reacting cylinder body, and a temperature detection device and a water quality detection device are arranged in the reacting cylinder body; a light source is arranged inside and / or outside the reacting cylinder body; the upper part of the reacting cylinder body is provided with an enlargement area, and the enlargement area comprises an effluent weir and an algae body outlet; the bottom of the reacting cylinder body is provided with a gas distribution device, and a frustum air inlet area is arranged below the gas distribution device; a water inlet and a water outlet are respectively provided with a sampling port and a flowmeter, and an air inlet is provided with a gas flow indicator. The system can be taken as a treatment device for high concentrated organic wastewater such as brewing wastewater, sugar wastewater and so on, is suitable for the treatment of small-scale high concentrated organic wastewater, is also suitable for the treatment of large-scale high concentrated organic wastewater, can realize the continuous operation of the process and the optimizing control of the whole process, and is easy to realize cooperative coupling operation with other treatment systems.

Description

technical field [0001] The invention relates to an organic wastewater treatment system, in particular to an algae photobioreactor treatment system for high-concentration organic wastewater. Background technique [0002] Since the 1980s, people have carried out extensive research on various closed algae photobioreactors in order to achieve high yields of algae and high efficiency in wastewater treatment, as well as easy monitoring and control of the process. There are mainly two types of bioreactors: pipeline type and crate type. For example, Guo Siyuan of South China University of Technology studied the growth of microalgae, and developed a pipeline airlift magnetic treatment photobioreactor microalgae production system and monitoring method. This method is a microalgae production system, and microalgae are in a fluidized state. and the system can be monitored in real time, but the structure of the system is complex and does not involve the field of wastewater treatment; Qi...

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Problems solved by technology

The disadvantage of open diving facilities is firstly that it occupies a large area, and it is not suitable for promotion in areas where land is scarce (such as the Pearl River Delta region); secondly, this treatment method uses natural light as the light source and is subject to seasonal, regional, and diurnal restrictions

So far, there are few commercial products of closed photobioreactors and these developed reactors are common: (1) the area-to-volume ratio and light-receiving area are small, and the utilization rate of light energy is low; (2) the structure of photobioreactor is complex and the flow The behavior is not easy to monitor and control; (3) poor mixing and mass transfer, resulting in uneven distribution of temperature, nutrition and algae; (4) mostly intermittent operations, it is difficult to meet the requirements of large-scale processing; (5) operation, control and amplification Difficulty and other issues

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