Application of bio-membrane reactor in sewage treatment, carbon sequestration microalgae harvesting

A technology of photobioreaction and membrane reactor, applied in photobioreactor, biological water/sewage treatment, bioreactor/fermentation tank combination, etc., can solve problems such as difficulties, small harvest of individual microalgae, etc., and achieve improved dissolution performance, avoid energy loss, and solve the effect of light attenuation

Pending Publication Date: 2017-08-04
NANCHANG UNIV
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Problems solved by technology

[0005] In order to realize the resource utilization of wastewater and CO 2 High-efficiency biological immobilization of microalgae solves the problem of difficult harvesting of individual microalgae. The pr

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  • Application of bio-membrane reactor in sewage treatment, carbon sequestration microalgae harvesting
  • Application of bio-membrane reactor in sewage treatment, carbon sequestration microalgae harvesting
  • Application of bio-membrane reactor in sewage treatment, carbon sequestration microalgae harvesting

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] Example.

[0029] The device described in this embodiment includes an air distribution system A, a columnar dissolved air-air flotation harvesting system B and a photobiological reaction system C.

[0030]The photobiological reaction system C includes an upper tank 13, a membrane material suspension bracket 21, a lower tank 17, a submersible pump 18, a timer 19, a membrane material 16, a plant growth Led light source 14 and a mechanical scraping microalgae device 15. The lower water tank 17 is connected to the upper water tank 13 through the submersible pump 18 and the pipeline, and the timer 19 controls the operation of the submersible pump 18. The bottom of the upper water tank 13 is provided with a water outlet hole 20, and the water outlet hole 20 is above the membrane material 16, and the membrane material 16 hangs vertically On the membrane material suspension...

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Abstract

The invention discloses application of a bio-membrane reactor in sewage treatment, carbon sequestration microalgae harvesting. The bio-membrane reactor comprises a photo-biological reaction system, a gas allocation system and a column-shaped dissolved-gas-gas floating harvesting system. By adopting the reactor, deep sewage purification can be achieved by using microalgae. A vertical space can be very well utilized by using a vertically suspended membrane material; by adopting a membrane component, the gas-liquid transfer efficiency is greatly improved; due to a special arrangement mode of a curtain type membrane component, scattering loss of light can be reduced to the maximum extent, energy loss is avoided, efficient absorption and utilization of the microalgae on a luminous energy envelope are ensured, and the algae cell lighting homogeneity is achieved; low-cost green harvesting of the microalgae on membranes is achieved through simple mechanical scraping. Low-cost green gas dissolution-gas floating harvesting of the suspended microalgae is achieved through the column-shaped dissolved-gas-gas floating harvesting system, meanwhile CO2 dissolved gases are functionally concentrated in a harvesting device, and CO2 enriched microalgae culture is achieved through the gas allocation system and the column-shaped dissolved-gas-gas floating harvesting system in the culture process.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a photobiofilm reactor and a method for purifying sewage, high-efficiency carbon fixation and low-cost collection of microalgae. Background technique [0002] Traditional sewage treatment only treats sewage as a waste and pollutant. The traditional treatment process has problems such as long residence time, low treatment efficiency, large energy consumption and large carbon dioxide emissions. [0003] Microalgae has absolute advantages in purifying sewage: microalgae has simple structure, high photosynthetic efficiency, and short cultivation period; microalgae has the function of absorbing and consuming N, P and other nutrients in the water environment and adsorbing heavy metal elements; the photosynthesis of microalgae It takes a lot of CO 2 , if the CO emitted by the thermal power plant 2 It is used for large-scale cultivation of microalgae, which can reduce greenh...

Claims

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Application Information

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IPC IPC(8): C12M1/04C12M1/34C12M1/00C02F3/32C02F101/10C02F101/16C02F103/20
CPCC12M21/02C12M25/02C12M41/34C12M47/02C02F3/322C02F2101/16C02F2101/105C02F2103/20C02F2305/06
Inventor 巫小丹刘玉环朱榕璧郑洪立罗珊珊王允圃向书玉严持
Owner NANCHANG UNIV
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