New idea of utilizing sewage to culture oil-rich algae and also purify water

A technology for purifying water quality and algae, applied in biological water/sewage treatment, water/sludge/sewage treatment, single-cell algae, etc., can solve the problem of high cost of biodiesel and achieve the effect of high sewage tolerance

Inactive Publication Date: 2015-04-15
CHONGQING TECH & BUSINESS UNIV +2
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  • Application Information

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Problems solved by technology

The use of non-additive wastewater to grow algae can not only treat wastewater, but also extract biodiesel from it ...

Method used

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  • New idea of utilizing sewage to culture oil-rich algae and also purify water
  • New idea of utilizing sewage to culture oil-rich algae and also purify water
  • New idea of utilizing sewage to culture oil-rich algae and also purify water

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Embodiment Construction

[0017] (1) Since the volume of the purchased algae is not enough to complete the experiment, it needs to be transferred and expanded for cultivation. In this experiment, BG11 and D1 liquid medium were used to cultivate green algae and Scenedesmus. Before inoculation, in order to prevent the algae from being polluted, the tools and utensils used for cultivation need to be strictly sterilized, and then operated on a clean workbench. The method of high-pressure steam sterilization is used in the experiment, and the culture that needs to be sterilized Put the base, inoculation tools, culture containers, etc. into the sterilizer, and the pressure is 1.05kgf / cm 2 , temperature 120°C, 30min. Culture conditions: The culture temperature is 25±1°C, the light condition is 2000Lux, 12Hr day / 12Hr night, and shake regularly 3 times a day during the culture period to make the distribution of algae even.

[0018] (2) Inject the experimental algae-Chlorella vulgaris, Scenedesmus, Botrytis br...

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Abstract

The invention relates to a new technology for utilizing sewage to culture oil-rich algae and further to purify water, and realizing sewage resourceful processing by recovering algae and extracting microcapsule oil. By analyzing literatures correlated to sewage purification and oil-producing algae, five algae species are preliminarily screened out for experimental analysis, and the five algae species comprise scenedesmus, chlorella, botryococcus braunii, nitzschia and navicula. Chongqing Municipality local sewage is employed for investigating the adaptability of algae species to sewage, the investigation process comprises determining growth speed and removal rate of nitrogen and phosphorus, determining biomass yield and determining algae oil content, and finally screening out a most proper algae species as a further research target. Further analysis is performed on the preponderant algae species, influences of illumination intensity and sewage concentration on algae growth and pollutant removal efficiency are researched, and the oil content of algae cells is preliminarily determined.

Description

technical field [0001] The innovative concept involves a new concept of using sewage and wastewater to cultivate oil-rich algae to purify water quality, and recovering algae to extract microcapsule oil to realize sewage resource treatment. It belongs to the field of water environmental pollution control and sewage and wastewater resource treatment. Background technique [0002] Facing the energy problem and water pollution problem in the new century, the development of clean energy and water pollution control have become the focus of research by scientists all over the world. The study found that some microalgae have high lipid content and can be extracted directly to produce biodiesel. The development and utilization of biomass energy can not only alleviate the global energy crisis caused by the depletion of fossil fuels, but also reduce global carbon emissions, so as to achieve low-carbon, economical and environmental protection. Municipal wastewater contains a large amou...

Claims

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Application Information

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IPC IPC(8): C12N1/12C02F3/32C12R1/89
CPCC12N1/12C02F3/325
Inventor 钟成华周晓琴安雅敏蒋佳凌左轻扬毛雪梅彭图恒陈梅刘尚俭徐瑞钱珍余
Owner CHONGQING TECH & BUSINESS UNIV
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