Investigation of a new anaerobic side-stream reactor (ASSR) process for sludge reduction in biological wastewater treatment

2012 ◽  
Vol 2012 (2) ◽  
pp. 1235-1248 ◽  
Author(s):  
Dong-Hyun Chon ◽  
Chul Park
Keyword(s):  
Wastewater Treatment ◽  
Biological Wastewater Treatment ◽  
Sludge Reduction ◽  
Side Stream

Investigation of sludge reduction and biogas generation in high-rate anaerobic side-stream reactors for wastewater treatment

2018 ◽  
Vol 4 (11) ◽  
pp. 1829-1838 ◽  
Author(s):  
Chul Park ◽  
Dong-Hyun Chon ◽  
Aaron Brennan ◽  
Heonseop Eom
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
High Rate ◽  
Sludge Reduction ◽  
Waste Sludge ◽  
Side Stream ◽  
Activated Sludge Systems ◽  
Sludge Production

Activated sludge systems incorporating a 2 day anaerobic side-stream reactor (ASSR) show significantly decreased waste sludge production.

scholarly journals Impact on nitrifiers of full-scale bioaugmentation

2017 ◽  
Vol 76 (11) ◽  
pp. 3079-3085 ◽  
Author(s):  
F. Stenström ◽  
J. la Cour Jansen
Keyword(s):  
Growth Rate ◽  
Wastewater Treatment ◽  
Treatment Plant ◽  
Amplicon Sequencing ◽  
Full Scale ◽  
Point Of View ◽  
Biological Wastewater Treatment ◽  
16S Rrna Amplicon Sequencing ◽  
Side Stream ◽  
Over Time

Abstract Nitrifiers are the slowest growing bacteria used in conventional biological wastewater treatment. Furthermore, their growth rate is seriously hampered by low temperature. As a result, the volume needed for nitrification dominates the volume of the biological reactors at a wastewater treatment plant. As a way of enhancing nitrification and reducing this volume, bioaugmentation can be used. Nitrifiers from a side-stream plant can be inoculated to the mainstream process, which is thereby boosted. The effect of bioaugmentation can be measured in different ways. This full-scale study focuses on the effect of bioaugmentation from a microbial point of view by using 16S rRNA amplicon sequencing. The study reveals how bioaugmentation increases the diversity of nitrifiers in the mainstream process and in the side-stream plant; that the abundance of nitrifiers is increased in the mainstream process; the interaction between nitrifiers from the side-stream plant and mainstream process; and the effect of bioaugmentation on nitrifying genera and species over time. To our knowledge, this detailed microbial information on nitrifying species during a full-scale bioaugmentation study has not been presented before.

Excess sludge reduction using ultrasonic waves in biological wastewater treatment

Desalination ◽  
2011 ◽  
Vol 275 (1-3) ◽  
pp. 67-73 ◽  
Author(s):  
Ahmad Reza Mohammadi ◽  
Nasser Mehrdadi ◽  
Gholamreza Nabi Bidhendi ◽  
Ali Torabian
Keyword(s):  
Wastewater Treatment ◽  
Ultrasonic Waves ◽  
Biological Wastewater Treatment ◽  
Sludge Reduction ◽  
Excess Sludge ◽  
Excess Sludge Reduction

Mainstream nitrogen separation and side-stream removal to reduce discharge and footprint of wastewater treatment plants

2021 ◽  
Vol 188 ◽  
pp. 116527 ◽  
Author(s):  
Zhen Zhou ◽  
Kaichong Wang ◽  
Jiaxin Qiang ◽  
Hongjian Pang ◽  
Yao Yuan ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Side Stream
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