Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 643, Issue -, Pages 225-237Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2018.06.100
Keywords
Low temperature; Municipal/domestic wastewater; Enhanced treatment; Operational strategies
Categories
Funding
- National Natural Science Foundation of China [51478138]
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Biological wastewater treatment has been widely applied to municipal/domestic wastewater treatment systems. However, low temperature significantly decreases process performance. Furthermore, increasingly stringent effluent discharge standards are causing wastewater treatment facilities to have to improve and maintain contaminants removal under low temperature. Hence, this review aims to summarize strategies for enhanced treatment of municipal/domestic wastewater at low temperature. First, mechanisms of the effects of low temperature on wastewater treatment, including physiological characteristics, microbial growth rate, microbial activity, microbial community structure and sludge settleability, are analyzed. Strategies for performance intensifications at low temperature, mainly operational parameters regulation, bioaugmentation, biofilm technology, chemical phosphorus precipitation and application of novel process technologies, are then reviewed. Finally, future directions to address low temperature wastewater are highlighted. A special emphasis is given to the application of novel process/technology configurations to enhance process performance at low temperature in practical engineering. (C) 2018 Elsevier B.V. All rights reserved.
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