This study investigated the performance of full nitration-denitration (FND) and partial nitration-denitration-anammox (PNDA) in treating a synthetic wastewater with 300 mg/L NH-N and 600 mg/L COD. It was found that approximately 40% higher total nitrogen removal was achieved via PNDA than via FND. Meanwhile, high-throughput sequencing also revealed that aerobic heterotrophic bacteria were predominant in the FND process, while facultative and even anaerobic bacteria including anammox bacteria were dominant in PNDA process. Furthermore, the mass balance on nitrogen showed that 44% of nitrogen was removed by partial nitration-denitration, while 36% via nitritation-anammox pathway in the PNDA process, with the significant saving in aeration and demand of organic carbon source. Compared to the FND process, it is obvious that the PNDA process will offer a more cost-effective alternative with easy operation for treating ammonium-rich organic wastewater.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2018.04.049 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The evolution of nitrogen transformation microorganism consortium under continued manganese domestication conditions.
Sci Total Environ
November 2023
College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, PR China.
Manganese redox-stimulated bioremediation of nitrogen wastewater is receiving increasing attention. However, the nitrogen metabolic capacity and community evolution during manganese-mediated nitrogen transformation process under continued manganese domestication conditions are ambiguous. In this study, nitrogen- metabolizing microbial consortiums were incubated with synthesized Mn-humic acid complex (Mn-HA) for one month (M1), three months (M2) and six months (M3), respectively.
View Article and Find Full Text PDFEnhanced photocatalytic bacterial inactivation of atomic-layer deposited anatase-TiO thin films on rutile-TiO nanotubes.
Photochem Photobiol Sci
March 2020
Universidad de Las Américas, Puebla (UDLAP), Water Sciences Research Group, Ex Hacienda Sta. Catarina Mártir, San Andrés Cholula, 72810, Puebla, Mexico.
In this work, experimental conditions were established to fabricate self-ordered rutile-TiO nanotube arrays, coated with a conformal anatase-TiO thin layer using atomic layer deposition. E. coli inactivation tests showed a considerable increase in photocatalytic activity using rutile-TiO nanotubes coated with anatase-TiO compared to that using single rutile or anatase TiO nanotubes only.
View Article and Find Full Text PDFFull nitration-denitration versus partial nitration-denitration-anammox for treating high-strength ammonium-rich organic wastewater.
Bioresour Technol
August 2018
School of Civil and Environmental Engineering, Nanyang Technological University, 637819, Singapore; Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 637141, Singapore.
This study investigated the performance of full nitration-denitration (FND) and partial nitration-denitration-anammox (PNDA) in treating a synthetic wastewater with 300 mg/L NH-N and 600 mg/L COD. It was found that approximately 40% higher total nitrogen removal was achieved via PNDA than via FND. Meanwhile, high-throughput sequencing also revealed that aerobic heterotrophic bacteria were predominant in the FND process, while facultative and even anaerobic bacteria including anammox bacteria were dominant in PNDA process.
View Article and Find Full Text PDFRole of periostin and its antagonist PNDA-3 in gastric cancer metastasis.
World J Gastroenterol
March 2015
Guo-Xiao Liu, Hong-Qing Xi, Xiao-Yan Sun, Bo Wei, Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
The extracellular matrix component periostin is a secreted protein that functions as both a cell attachment protein and an autocrine or paracrine factor that signals through the cell adhesion molecule integrins αvβ3 and αvβ5. Periostin participates in normal physiological activities such as cardiac development, but is also involved in pathophysiological processes in vascular diseases, wound repair, bone formation, and tumor development. It is of increasing interest in tumor biology because it is frequently overexpressed in a variety of epithelial carcinomas and is functionally involved in multiple steps of metastasis progression.
View Article and Find Full Text PDFVolatility in mRNA secondary structure as a design principle for antisense.
Nucleic Acids Res
February 2013
Department of Chemical, Materials and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA.
Designing effective antisense sequences is a formidable problem. A method for predicting efficacious antisense holds the potential to provide fundamental insight into this biophysical process. More practically, such an understanding increases the chance of successful antisense design as well as saving considerable time, money and labor.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!