Rapid start up anammox process through a new strategy with inoculating perchlorate reduction sludge and a small amount of anammox sludge

TY - JOUR

T1 - Rapid start up anammox process through a new strategy with inoculating perchlorate reduction sludge and a small amount of anammox sludge

AU - Wang, Tuo

AU - Liu, Yunman

AU - Guo, Jianbo

AU - Song, Yuanyuan

AU - Gu, Jidong

AU - Lian, Jing

AU - Lu, Caicai

AU - Han, Yi

AU - Li, Haibo

AU - Hou, Yanan

N1 - Publisher Copyright: © 2020

PY - 2020/12/15

Y1 - 2020/12/15

N2 - The slow start-up of anammox process has been a big obstacle for its engineering application. In this study, a new strategy was adopted to start up anammox by mixing perchlorate reduction sludge (PRS) and anammox sludge with 50:1 vol ratio, and the mechanism in the start-up process was explored. The results showed that anammox process was started up successfully after 41 days. During the operation process, pH value increased from 7.88 ± 0.14–8.06 ± 0.11, extracellular polysaccharides (PS) increased from 10.56 to 24.45 mg·(g VSS)−1, C6-HSL increased by 0.061 μg·(g VSS)−1, and C8-HSL decreased by 0.068 μg·(g VSS)−1. These changes in favor of anammox were attributed to the contribution of PRS and the guidance of anammox sludge. The bacterial ecology evolved towards anammox. This study provided a new idea for the anammox start-up in practical application.

AB - The slow start-up of anammox process has been a big obstacle for its engineering application. In this study, a new strategy was adopted to start up anammox by mixing perchlorate reduction sludge (PRS) and anammox sludge with 50:1 vol ratio, and the mechanism in the start-up process was explored. The results showed that anammox process was started up successfully after 41 days. During the operation process, pH value increased from 7.88 ± 0.14–8.06 ± 0.11, extracellular polysaccharides (PS) increased from 10.56 to 24.45 mg·(g VSS)−1, C6-HSL increased by 0.061 μg·(g VSS)−1, and C8-HSL decreased by 0.068 μg·(g VSS)−1. These changes in favor of anammox were attributed to the contribution of PRS and the guidance of anammox sludge. The bacterial ecology evolved towards anammox. This study provided a new idea for the anammox start-up in practical application.

KW - Anammox

KW - Community structure

KW - Niche

KW - Perchlorate reduction

KW - Start up

UR - http://www.scopus.com/inward/record.url?scp=85090546559&partnerID=8YFLogxK

U2 - 10.1016/j.bej.2020.107784

DO - 10.1016/j.bej.2020.107784

M3 - 文章

AN - SCOPUS:85090546559

SN - 1369-703X

VL - 164

JO - Biochemical Engineering Journal

JF - Biochemical Engineering Journal

M1 - 107784

ER -