Brar Amandeep, Kumar Manish, Pareek Nidhi
Biocatalysis and Bioprocess Laboratory, Department of Microbiology, School of Life Sciences, Central University of Rajasthan, Ajmer, India.
Front Microbiol. 2019 Mar 29;10:678. doi: 10.3389/fmicb.2019.00678. eCollection 2019.
The present study is a trail to integrate the phycoremediation and bioenergy production from microalgal species cultivated in the dairy wastewater (DWW). Higher biomass productivities for (24.44 ± 8.02 mg Ld), (23.64 ± 5.69 mg Ld) and (18.72 ± 2.06 mg Ld) were recorded in 3:1 DWW over the control. The microalgal species have effectively reduced the BOD by 56%, COD by 77%, nitrate by 88%, and phosphate by 85% following 25 days of the cultivation in the 3:1 DWW. The total lipid content was 10.36, 13.13, and 16.93% of dry matter of biomass in , and , respectively following 25 days of cultivation in the 3:1 ratio of DWW. The biochemical characterization revealed that the protein content was 21.8% in , 17.73% in and 34.06% in . The estimation of theoretical methane potential suggested that the microalgal species have the desirable possibility of biogas generation. The results have marked the achievability of an integrated process for the remediation and bioenergy production by the employment of microalgal species.
本研究是一项将在乳制品废水（DWW）中培养的微藻物种进行藻类修复和生物能源生产整合的试验。在3:1的DWW中， （24.44±8.02毫克/升·天）、 （23.64±5.69毫克/升·天）和 （18.72±2.06毫克/升·天）的生物量生产力高于对照。在3:1的DWW中培养25天后，微藻物种有效地将生化需氧量（BOD）降低了56%，化学需氧量（COD）降低了77%，硝酸盐降低了88%，磷酸盐降低了85%。在3:1比例的DWW中培养25天后， 、 和 中总脂质含量分别占生物量干物质的10.36%、13.13%和16.93%。生化特性表明， 中的蛋白质含量为21.8%， 中为17.73%， 中为34.06%。理论甲烷潜力的估计表明，微藻物种具有产生沼气的理想可能性。结果表明，利用微藻物种进行修复和生物能源生产的综合过程是可行的。
