中国农村水利水电Issue(5)：10-17,8.DOI:10.12396/znsd.2500872
钝顶螺旋藻在景电灌区农业灌溉退水养殖条件下的固碳效应及对退水水质净化效果研究
Study on the Carbon Fixation Effect of Spirulina Platensis Under the Condition of Agricultural Irrigation in Jingdian and Its Purification Effect on the Effluent Water Quality
摘要
Abstract
The purpose of this study was to investigate the carbon sequestration effect of Spirulina platensis and its water purification efficiency under the condition of agricultural irrigation backwater culture in Jingdian Irrigation District.The effects of different CO2 volume fractions(0.03%as control group,1.0%,2.0%,3.0%,4.0%and 5.0%)on the growth,biomass,quality and carbon sequestration of Spirulina platensis were studied by using agricultural irrigation water as culture water,and the improvement effect of irrigation water quality under the optimal CO2 volume fraction was evaluated.The results showed that with the prolongation of culture time,the growth rate,biomass,carbon content,carbon fixation rate,soluble protein and sugar content of spirulina in each CO2 volume fraction treatment group were significantly higher than those in the control group.The growth rate and carbon sequestration rate showed a trend of increasing first and then decreasing.When the volume fraction of CO2 was 4.0%,the growth rate,biomass,carbon content,carbon fixation rate,soluble protein and sugar content(intracellular polysaccharide and extracellular polysaccharide)of spirulina reached the highest level,which were 153.1%,147.1%,81.7%,374.1%and 56.5%(35.1%,27.4%)higher than those of the control group,respectively.The removal rates of CODCr,BOD5,NH3-N,TP and TN in the effluent were 75.64%,90.49%,28.20%,68.42%and 90.73%,respectively,after 90 days of culture under the optimum CO2 volume fraction of 4.0%.The concentrations of pH,CODCr,BOD5,TP and TN all meet the Class III standard limits in the"Surface Water Environmental Quality Standard"(GB3838-2002).This study provides a theoretical basis for the application of Spirulina platensis in CO2 fixation and water purification under the condition of agricultural irrigation.关键词
钝顶螺旋藻/生长速率/固碳速率/农业灌溉退水水质Key words
Spirulina platensis/growth rate/carbon sequestration rate/agricultural irrigation water quality分类
农业科技引用本文复制引用
刘斌,廖赞,寇燕燕,张生银,张景辉..钝顶螺旋藻在景电灌区农业灌溉退水养殖条件下的固碳效应及对退水水质净化效果研究[J].中国农村水利水电,2026,(5):10-17,8.基金项目
农业农村部"甘肃省白银市景泰县盐碱地综合利用试点项目(第二标段)核心试验示范工程"(JTYJDSDXM-SG-02)子项目"盐碱地盐碱水微藻养殖集成试验示范"(SF4.6-4) （第二标段）
甘肃省青年科技基金项目"景电灌区农业节水抗旱丰产提质综合技术研究与应用"(23JRRD0001)甘肃省水利科学试验研究及技术推广计划项目"景电灌区退水固碳增汇技术研发"(24GSLK016) （23JRRD0001）
"景电灌区退水高效利用"(甘水科外发[2016]76号) （甘水科外发[2016]76号）
