Hydrothermal liquefaction of Galdieria sulphuraria grown on municipal wastewater

被引：64

作者：

Cheng, Feng ^{[1
]}

Mallick, Kwonit ^{[1
]}

Gedara, Shanka M. Henkanatte ^{[2
]}

Jarvis, Jacqueline M. ^{[3
]}

Schaub, Tanner ^{[3
]}

Jena, Umakanta ^{[1
]}

Nirmalakhandan, Nagamany ^{[2
]}

Brewer, Catherine E. ^{[1
]}

机构：

[1] New Mexico State Univ, Chem & Mat Engn, POB 30001 MSC 3805, Las Cruces, NM 88003 USA

[2] POB 30001 MSC 3CE, Las Cruces, NM 88003 USA

[3] Chem & Anal Instrumentat Lab, POB 30001 MSC 3BF, Las Cruces, NM 88003 USA

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 292卷

基金：

美国国家科学基金会;

关键词：

Microalgae; Biofuels; Energy recovery; Hydrothermal liquefaction; Wastewater treatment; BIOFUEL PRODUCTION; URBAN WASTEWATERS; ALGAL BIOFUELS; NUTRIENTS; BIOMASS; ENERGY; OIL; CARBON;

D O I：

10.1016/j.biortech.2019.121884

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Two strains of Galdieria sulphuraria algae, 5587.1 and SOOS, were grown on municipal wastewater to develop energy-positive treatment systems. Hydrothermal liquefaction (HTL) of 5-10 wt% algal biomass solids was conducted at 310-350 degrees C for 5-60 min to produce bio-crude oil. HTL product yields and energy recovery were compared to those from previous studies using G. sulphuraria grown on a modified Cyanidium medium. Total bio-crude oil yields were lower (11.2-23.0 wt%) and char yields were higher (22.6-36.4 wt%) for HTL of algae grown on actual wastewater compared with that grown on media (31.4 wt% and 4.8 wt%, respectively), indicating a potential limitation for using yields from media-based studies. High-resolution mass spectroscopy of bio-crude oil provides new insights into differences in composition based on growth media. Energy recovery in total bio-crude oil and char at 350 degrees C was 17-28% and 14-19%, respectively, for the 5587.1 strain, and 23-27% and 14-25%, respectively, for the SOOS strain.

引用

页数：10