文献类型：期刊文献

英文题名：Novel Fungal Pelletization-Assisted Technology for Algae Harvesting and Wastewater Treatment

作者：Zhou, Wenguang[1];Cheng, Yanling[1,2];Li, Yun[1,3,4];Wan, Yiqin[3,4];Liu, Yuhuan[1];Lin, Xiangyang[5];Ruan, Roger[1,3,4]

第一作者：Zhou, Wenguang

通讯作者：Ruan, R[1]

机构：[1]Univ Minnesota, Ctr Biorefining, St Paul, MN 55108 USA;[2]Beijing Union Univ, Beijing, Peoples R China;[3]Nanchang Univ, MOE Biomass Energy Ctr, Nanchang 330047, Jiangxi, Peoples R China;[4]Nanchang Univ, State Key Lab Food Sci, Nanchang 330047, Jiangxi, Peoples R China;[5]Fuzhou Univ, Fuzhou 350108, Fujian, Peoples R China

第一机构：Univ Minnesota, Ctr Biorefining, St Paul, MN 55108 USA

通讯机构：[1]corresponding author), Univ Minnesota, Ctr Biorefining, 1390 Eckles Ave, St Paul, MN 55108 USA.

年份：2012

卷号：167

期号：2

起止页码：214-228

外文期刊名：APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY

收录：;EI(收录号：20122215070568);Scopus(收录号：2-s2.0-84861479258);WOS:【SCI-EXPANDED(收录号:WOS:000304204300002)】；

基金：The study was supported in part by grants from the University of Minnesota Initiative for Renewable Energy and the Environment and Metropolitan Council Environmental Services, as well as the Legislative-Citizen Commission on Minnesota Resource, and the MOE Biomass Engineering Center in China.

语种：英文

外文关键词：Fungi pelletization; Microalgae algae harvesting; Municipal wastewater; Animal wastewater; Wastewater treatment

摘要：A novel fungi pelletization-assisted bioflocculation technology was developed for efficient algae harvesting and wastewater treatment. Microalga UMN235 and two locally isolated fungal species UMN F01 and UMN F02 were used to study the effect of various cultural conditions on pelletization process for fungi-algae complex. The results showed that pH was the key factor affecting formation of fungi-algae pellet, and pH could be controlled by adjusting glucose concentration and fungal spore number added. The best pelletization happened when adding 20 g/L glucose and approximately 1.2E8/L spores in BG-11 medium, under which almost 100 % of algal cells were captured onto the pellets with shorter retention time. The fungi-algae pellets can be easily harvested by simple filtration due to its large size (2-5 mm). The filtered fungi-algae pellets were reused as immobilized cells for treatment wastewaters and the nutrient removal rates of 100, 58.85, 89.83, and 62.53 % (for centrate) and 23.23, 44.68, 84.70, and 70.34 % (for diluted swine manure wastewater) for ammonium, total nitrogen, total phosphorus, and chemical oxygen demand, respectively, under both 1- and 2-day cultivations. The novel technology developed is highly promising compared with current algae harvesting and biological wastewater treatment technologies in the literature.