Algae harvesting method taking modified chitosan as flocculant

A harvesting method and flocculant technology, applied in the field of algae harvesting, can solve the problems of difficulty in collecting microalgae, high energy consumption, low income, etc., and achieve the effect of simple preparation process, moderate cost and low cost
CN103756907AActive Publication Date: 2014-04-30TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2014-04-30

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Abstract

The invention discloses an algae harvesting method taking modified chitosan as a flocculant. The method comprises the following steps: firstly, modifying chitosan to obtain a guanidine chitosan flocculant, and then adding the guanidine chitosan flocculant to a micro algae culture solution, so that the concentration of the guanidine chitosan flocculant in the micro algae culture solution is 2-100mg / L, stirring for 5-10 minutes, standing and participating for 10-120 minutes; removing supernate, and harvesting the micro algae. The chitosan has a better flocculation effect after being modified in a guanidination manner, and can be applied to collection of micro algae after large-scale cultivation, and rapid treatment of a harmful algal body of leading to water eutrophication, and the algae harvesting method has the advantages of low cost, less investment, simple preparation technological condition, environment friendliness and the like.
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Description

technical field

[0001] The invention belongs to the application field of algae harvesting in the process of preparing biodiesel, in particular relates to a method for algae enrichment and harvesting using modified chitosan as a flocculant. Background technique

[0002] my country's oil resources are insufficient, and in recent years it has been heavily dependent on imports, which account for more than half of the total oil. The development of liquid fuels that can replace petroleum resources has become an urgent social problem in today's society, in order to fundamentally solve the current situation of my country's oil shortage and effectively ensure my country's energy security. Therefore, finding alternative fuels for oil, especially diesel oil, has become an urgent and much-needed problem. Biodiesel is a good alternative fuel to fossil diesel.

[0003] About 75% of the cost of biodiesel is the cost of raw material oil, so the key to the industrialization of biodiesel li...

Claims

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