Microalgae culture and wood fiber waste fermentation coupling system
A technology for wood fiber and waste, applied in the field of comprehensive utilization of biological resources, can solve problems such as unsuitable biogas utilization mode, and achieve the effect of efficient resource utilization, novel and reasonable structure, and good operation effect.
Inactive Publication Date: 2015-12-23
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology
If only the aerobic composting unit and anaerobic fermentation unit are combined, although the removal and recycling of ammonia in the waste gas produced by aerobic composting can be realized, the carbon dioxide in the waste gas cannot be effectively treated and is directly discharged into the atmosphere. If only Combining the anaerobic fermentation unit and the microalgae cultivation unit, carbon dioxide must be provided by burning biogas. This mode is only suitable for the biogas utilization mode of combustion power generation, not suitable for the utilization mode of biogas used as vehicle gas after purification
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[0009] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. A coupling system for microalgae cultivation and lignocellulosic waste fermentation includes a microalgae cultivation unit 1, a dry anaerobic fermentation unit 6 for lignocellulosic waste, an aerobic composting unit 13, biogas residue conveying pipeline 11 and waste gas conveying pipe Both ends of the road A9 are respectively connected and installed on the lignocellulosic waste dry anaerobic fermentation unit 6 and the aerobic composting unit 13, and the lignocellulosic waste dry anaerobic fermentation unit 6 is connected with the aerobic composting unit 13 , the air intake pipeline 14 connects the air pump 15 with the aerobic composting unit 13, the valve D10 and the biogas residue conveyor 12 are sequentially installed on the biogas residue conveying pipeline 11, and the valve C8 is fitted on the waste gas conveying pipeline A9; Both ends of the waste ...
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The invention relates to a microalgae culture and wood fiber waste fermentation coupling system and belongs to a biological resource comprehensive utilization technique. The system comprises a microalgae culture unit, a wood fiber waste dry-type anaerobic fermentation unit and an aerobic composting unit, wherein a waste gas delivery pipeline A with a valve C and a biogas residue delivery pipeline with a valve D and a biogas residue conveyor are respectively communicated with the aerobic composting unit and the wood fiber waste dry-type anaerobic fermentation unit, a waste gas delivery pipeline B with a valve A and a biogas slurry delivery pipeline with a valve B and a biogas slurry conveyor are respectively communicated with the wood fiber waste dry-type anaerobic fermentation unit and the microalgae culture unit, a biogas output pipeline with a valve E is installed on the wood fiber waste dry-type anaerobic fermentation unit, and a biogas delivery pipeline, a valve F, a biogas combustion heat exchanger and a carbon dioxide gas and heat delivery pipeline communicate the biogas output pipeline with the waste gas delivery pipeline B. The system has the advantages of good operating effect, low operating cost and no environmental pollution.
Description
technical field [0001] The invention belongs to the comprehensive utilization technology of biological resources, and mainly relates to a coupled utilization system of microalgae cultivation and lignocellulosic waste fermentation cycle. Background technique [0002] In recent years, with the increase of people's attention to food safety, the demand for bio-organic fertilizers has increased significantly. At present, bio-organic fertilizers are mainly produced through aerobic composting. The aerobic composting process contains a large amount of Ammonia, carbon dioxide, heat and water vapor exhaust gases are all directly discharged into the atmosphere, which not only causes waste of resources, but also causes serious pollution to the environment. In addition, my country is a large agricultural country, which produces a large amount of lignocellulosic waste represented by crop stalks every year. At present, most of these wastes are discarded or incinerated, which not only cause...
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IPC IPC(8): C05F17/02C12M1/107C12M1/00C12R1/89
CPCY02E50/30Y02W30/40
Inventor 王忠江王丽丽隋超吴婧王泽宇李文哲李翯
Owner NORTHEAST AGRICULTURAL UNIVERSITY