Effects of alkali-treated sludge supplementation for enhanced biological phosphorus removal in a membrane bioreactor

被引：9

作者：

Park, Jeong-Hoon ^{[1
]}

Kang, Hyun-Jin ^{[2
]}

Kim, Han-Shin ^{[2
]}

Wells, George F. ^{[1
]}

Park, Hee-Deung ^{[2
,3
]}

机构：

[1] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL USA

[2] Korea Univ, Sch Civil Environm & Architectural Engn, 145 Anam Ro, Seoul 02841, South Korea

[3] Korea Univ, Grad Sch Energy & Environm, KU KIST Green Sch, Seoul, South Korea

来源：

FUEL | 2019年 / 254卷

关键词：

Alkali-treated sludge; Enhanced biological phosphorus removal; Phosphorus accumulating organisms; Tetrasphaera; WASTE ACTIVATED-SLUDGE; POLYPHOSPHATE-ACCUMULATING ORGANISMS; PHOSPHATE REMOVAL; MICROBIAL COMMUNITIES; PHYLUM ACIDOBACTERIA; SCALE; WATER; MODEL; PRETREATMENT; ACIDIFICATION;

D O I：

10.1016/j.fuel.2019.05.171

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Waste activated sludge treated with an alkaline solution was used as external carbon substrates to improve the performance of enhanced biological phosphorus removal (EBPR) in a pilot plant. Supplementation of the alkali-treated sludge significantly enhanced the phosphorus removal of the pilot plant from 81.6 to 98.7%. Microscopic observations revealed that alkali treatment was effective in killing bacterial cells in the sludge, and deconstructed its morphology into a reticular form. The change in cell viability and morphology facilitated organic matter release, mostly in the form of proteins. Furthermore, supplementation of the alkali-treated sludge changed the major phosphorus accumulating organisms (PAOs) from Accumulibacter to Tetrasphaera. Enrichment of PAOs within the Tetrasphaera was due to specific carbon substrates (i.e. proteins) released by the alkali-treated sludge. Taken together, this study strongly suggests that supplementation of alkali-treated sludge was an efficient method for improving EBPR performance by enrichment of Tetrasphaera PAOs.

引用

页数：9

共 46 条

[1] A metagenome of a full-scale microbial community carrying out enhanced biological phosphorus removal [J].

Albertsen, Mads ;

Hansen, Lea Benedicte Skov ;

Saunders, Aaron Marc ;

Nielsen, Per Halkjaer ;

Nielsen, Kare Lehmann .

ISME JOURNAL, 2012, 6 (06) :1094-1106

[2]

Aslam M, 2018, SEP PURIF TECHNOL

[3]

BIRNBOIM HC, 1979, NUCLEIC ACIDS RES, V7, P1513

[4] Different mechanisms for the anaerobic storage of organic substrates and their effect on enhanced biological phosphate removal (EBPR) [J].

Carucci, A ;

Lindrea, K ;

Majone, M ;

Ramadori, R .

WATER SCIENCE AND TECHNOLOGY, 1999, 39 (06) :21-28

[5] Hydrolysis and acidification of waste activated sludge at different pHs [J].

Chen, Yinguang ;

Jiang, Su ;

Yuan, Hongying ;

Zhou, Qi ;

Gu, Guowei .

WATER RESEARCH, 2007, 41 (03) :683-689

[6] Enhancement of activated sludge dewatering performance by combined composite enzymatic lysis and chemical re-flocculation with inorganic coagulants: Kinetics of enzymatic reaction and re-flocculation morphology [J].

Chen, Zhan ;

Zhang, Weijun ;

Wang, Dongsheng ;

Ma, Teng ;

Bai, Runying .

WATER RESEARCH, 2015, 83 :367-376

[7] Production of polyhydroxyalkanoates (PHA) by activated sludge treating municipal wastewater: effect of pH, sludge retention time (SRT), and acetate concentration in influent [J].

Chua, ASM ;

Takabatake, H ;

Satoh, H ;

Mino, T .

WATER RESEARCH, 2003, 37 (15) :3602-3611

[8]

COMEAU Y, 1987, J WATER POLLUT CON F, V59, P707

[9] Identification of polyphosphate-accumulating organisms and design of 16S rRNA-directed probes for their detection and quantitation [J].

Crocetti, GR ;

Hugenholtz, P ;

Bond, PL ;

Schuler, A ;

Keller, J ;

Jenkins, D ;

Blackall, LL .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2000, 66 (03) :1175-1182

[10]

Federation W. E, 2005, STANDARD METHODS EXA, pWashington

← 1 2 3 4 5 →