基于微藻养殖的沼液资源化利用与高价值生物质生产耦合技术研究

综述了微藻培养技术研究进展,并分析了沼液作为资源制备微藻生物质可行性,提出了沼液资源化利用与高价值生物质生产耦合工艺技术系统。结果表明,沼液预处理技术、目标藻种筛选技术、微藻规模化培养技术和藻渣高值利用技术是耦合系统的四大关键技术。基于微藻培养技术,该耦合系统促使沼液处理系统从"处理工艺"向"生产工艺"转化,实现了多元功能耦合,即沼液除磷脱氮耦合氮磷回收,沼液净化处理耦合生物能源生产以及CO2的固定耦合沼气净化。

On the microalgae-cultivation based coupling of biogas fermentative liquid-resource utilization and high-quality biomass production

This paper puts its focus on the study of the microalgae-cultivation based coupling of biogas fermentative liquid-resource utilization and high-quality biomass production.As a matter of fact,water resource utilization by using its biogas fermentative liquid nutrients is one of the highly efficient means to increase the aquarium production.For our research goal,we have done a scientific analysis of the possibility of such cultivation,and brought about our own coupling technological system through literature review and biotechnical investigation.In addition,we have searched and taken into full account the disadvantageous conditions and drawbacks of the two traditional lop-sided systems,demonstrating the restriction of the one-sided purification system due to its imbalanced nutrient proportion,i.e.higher pH value and total nitrogen,with the lower total content of phosphorus,etc.Hence,if we can join the above two mutually complementary systems into one,it would be possible to make up for each other’s drawbacks so as to overcome the bottleneck involved and reduce the cost needed.All the above considerations make us believe that such a coupling system can stimulate the transformation of the biogas fermentative liquid-purifying system from the mere "treating process" into "production process".It surely helps to realize the multi-processing goal by combining the removal and utilization of water/nitrogen/phosphorus in biogas fermentative liquid,and biogas fermentative liquid purification and biomass energy production into one unified system,particularly between CO2 sequestration and biogas purification.Thus,the new coupling system is expected to provide a new idea for biogas fermentative liquid resource utilization and display its great potential for future development and application.