Microbial communities and relationship with biofilm spatial distributions in subsurface wastewater infiltration systems

• Autorzy: Zhang L. , Yang J.

Identyfikatory

DOI

10.5277/epe160305

• Języki publikacji: EN

Abstrakty

EN

A pilot-scale subsurface wastewater infiltration system (SWIS) was designed for the treatment of polluted river water. The components of microbial communities have been identified and characterized and their dependences on some indicators of biofilm formation in the SWIS have been determined. The average efficiencies of COD, TN and removal were 43.3%, 28.8% and 79.6%, respectively. According to the denaturing gradient gel electrophoresis (DGGE) profile, high intensity and uniform bands were generated, indicating an abundant microbial community in each layer of the SWIS. Furthermore, the Shannon index analysis showed high correlation to the spatial distribution of microbial communities as well as the quantity of biofilm in each sample, which were characterized by measuring volatile suspended solids (VSS), phospholipids, proteins and polysaccharides. Sequencing of partial 16S rRNA gene fragments revealed that the composition of the total bacterial communities was dominated by Alphaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, Pseudomonas, Bacillus, Flavobacteriaceae, TM-7, and other uncultured bacteria. These bacteria may contribute to nutrient removal in SWIS. +4 NH –N

Słowa kluczowe

EN

water treatment; wastewater infiltration system; DGGE; volatile suspended solids

PL

oczyszczanie ścieków oczyszczanie wody; systemy infiltracji ścieków; lotne zawiesiny

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2016
• Tom: Vol. 42, nr 3
• Strony: 55--69
• Opis fizyczny: Bibliogr. 25 poz., tab., rys.

Twórcy

autor

Zhang L.

• College of Architecture and Environment, Sichuan University, Chengdu 610065, China.
• School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
• College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.

autor

Yang J.

• College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.

Bibliografia

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