Multivariate analysis of activated sludge community in full-scale wastewater treatment plants

被引:10
|
作者
Sobczyk, Mateusz [1 ]
Pajdak-Stos, Agnieszka [1 ]
Fialkowska, Edyta [1 ]
Sobczyk, Lukasz [1 ]
Fyda, Janusz [1 ]
机构
[1] Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland
关键词
Activated sludge; Protozoa; Metazoa; Process parameters; PCA; RDA; CILIATED PROTOZOA COMMUNITIES; PERFORMANCE; SEWAGE; MICROFAUNA; DYNAMICS; TEMPERATURE; INDICATORS; BIOINDICATORS; POPULATIONS; PARAMETERS;
D O I
10.1007/s11356-020-10684-5
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
We investigated changes in protozoa and metazoa community in relation to process parameters in activated sludge from four wastewater treatment plants (WWTPs) throughout the period of 1 year. Principal component analysis (PCA) showed that activated sludge from investigated treatment plants had different dominating species representatives and community composition mainly depends on individual features of the treatment plants. Redundancy analysis (RDA) showed that the temperature in bioreactors was the most relevant factor explaining changes in the microorganism community, whereas reduction rate of chemical oxygen demand (COD), biological oxygen demand (BOD5), suspended solids (SS), and total nitrogen (TN) did not sufficiently explain the variation in protozoa and metazoan community composition. The results indicate that in stable working WWTP it is difficult to find a pronounced link between activated sludge species composition, process parameters, and plant configuration. Applied multivariate analysis can be a valuable tool for the exploration of the relations between community composition and WWTP process parameters.
引用
收藏
页码:3579 / 3589
页数:11
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