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Method for producing bioenergy through microalgae two-step method

A bio-energy and microalgae technology, applied in the direction of microorganisms, microorganism-based methods, energy wastewater treatment, etc., to achieve the effects of short doubling time, alleviating the fossil energy crisis, and alleviating the greenhouse effect

Active Publication Date: 2010-06-30
ENN SCI & TECH DEV
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Problems solved by technology

[0006] However, the method of comprehensively developing and utilizing renewable energy by combining biological hydrogen production and biofermentation biogas production has not been reported yet.

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Embodiment Construction

[0026] The present invention will be further described in detail below with reference to the drawings and specific embodiments, but it should not be understood as limiting the present invention.

[0027] 1. Cultivation of microalgae: the algae species are selected by the company for high-efficiency growth algae species, the medium is an improved basic medium, and the carbon source after the improvement is mainly CO 2 , The inoculation amount of the algae species is 5% to 25% (volume ratio), the OD value of the algae species is greater than 0.7 at 680nm, CO 2 The absorption rate can reach more than 50% (volume ratio), and the biomass yield is 10-15g (dry weight) / m3 / d.

[0028] The following table shows the composition of a modified freshwater medium.

[0029] # Component content storage solution concentration

[0030] 1 Main culture medium 960mL

[0031] 2 Soil water 40mL supernatant

[0032] Main medium

[0033] # Composition Content Storage Solution Concentration

[0034] 1 NaNO 3 ...

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Abstract

The invention relates to a method for producing bioenergy through microalgae two-step method, which belongs to the technical field of environmental protection and new energies and uses microalgae organisms to prepare bioenergy (hydrogen and methane). The method for producing bioenergy through microalgae two-step method mainly includes the steps of culturing microalgae, collecting microalgae biomass and processing, then preparing hydrogen and methane through organisms, and comprehensively using products and residues. As the method uses the microalgae to produce bioenergy through a two-step method, the method not only can obtain two stable bioenergies (hydrogen and methane), but also can absorb CO2, and ease the greenhouse effect; the generated clean energy substances can effectively ease energy crisis, and reach the goals of improving the environment and increasing new energies.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection and new energy, and specifically relates to the use of microalgae to produce bioenergy. Background technique [0002] At present, due to the high international oil prices, the concerns of various countries about the security of energy supply, and the global concern about climate change caused by greenhouse gas emissions, energy conservation, improvement of energy efficiency and development and utilization of renewable energy have become the focus of world energy development. In the 21st century, many countries have taken the development of renewable energy as an important measure to alleviate energy supply contradictions, cope with climate change, and achieve sustainable development. Renewable energy is developing rapidly worldwide. [0003] Algae, especially those miniature unicellular algae, whether prokaryotic or eukaryotic, they absorb CO 2 The most effective way to produce green new...

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Application Information

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IPC IPC(8): C12N1/12C12P3/00C12P5/02C02F11/04C05F5/00F02B43/00F02B63/04C12R1/89
CPCY02T10/32Y02E50/343Y02A40/20Y02E50/30Y02T10/30Y02W10/37Y02W30/40
Inventor 李静郭朋朋耿金峰马卫敬杨巧利刘敏胜
Owner ENN SCI & TECH DEV
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