High rate domestic wastewater treatment at 15 °C using anaerobic reactors inoculated with cold-adapted sediments/soils – shaping robust methanogenic communities

2019 ◽  
Vol 5 (1) ◽  
pp. 70-82 ◽  
Author(s):  
Evangelos Petropoulos ◽  
Yongjie Yu ◽  
Shamas Tabraiz ◽  
Aminu Yakubu ◽  
Thomas P. Curtis ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Domestic Wastewater ◽  
High Rate ◽  
Cold Adapted ◽  
Anaerobic Reactors ◽  
Domestic Wastewater Treatment

To choose the reactor format in which to employ a low temperature adapted seed for wastewater treatment, we compared a UASB and an AnMBRUASB (UF)reactor at low HRT and temperature (15 °C).

Evaluation of flocculation and dissolved air flotation as an advanced wastewater treatment

2001 ◽  
Vol 43 (8) ◽  
pp. 83-90 ◽  
Author(s):  
A. C. Pinto Filho ◽  
C. C. Brandão
Keyword(s):  
Wastewater Treatment ◽  
Domestic Wastewater ◽  
High Rate ◽  
Advanced Treatment ◽  
Dissolved Air Flotation ◽  
Anaerobic Reactor ◽  
Treatment Processes ◽  
Domestic Wastewater Treatment ◽  
Air Flotation ◽  
Dissolved Air

A bench scale study was carried out in order to evaluate the applicability of dissolved air flotation (DAF) as an advanced treatment for effluents from three different domestic wastewater treatment processes, namely: (i) a tertiary activated sludge plant ; (ii) an upflow sludge blanket anaerobic reactor (UASB); and (iii) a high-rate stabilization pond.

Application and microbial ecology of psychrotrophs in domestic wastewater treatment at low temperature

Chemosphere ◽  
2018 ◽  
Vol 191 ◽  
pp. 946-953 ◽  
Author(s):  
Zhenzhen Xu ◽  
Yue Ben ◽  
Zhonglin Chen ◽  
Anxi Jiang ◽  
Jimin Shen ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Microbial Ecology ◽  
Domestic Wastewater ◽  
Domestic Wastewater Treatment

Enhancement of oxygen transfer and nitrogen removal in a membrane separation bioreactor for domestic wastewater treatment

2005 ◽  
Vol 51 (10) ◽  
pp. 85-92 ◽  
Author(s):  
C. Chiemchaisri ◽  
K. Yamamoto
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Nitrogen Removal ◽  
Membrane Separation ◽  
Hollow Fiber Membrane ◽  
Domestic Wastewater ◽  
Moderate Temperature ◽  
Nitrifying Bacteria ◽  
Diffusion Resistance ◽  
Domestic Wastewater Treatment

Biological nitrogen removal in a membrane separation bioreactor developed for on-site domestic wastewater treatment was investigated. The bioreactor employed hollow fiber membrane modules for solid–liquid separation so that the biomass could be completely retained within the system. Intermittent aeration was supplied with 90 minutes on and off cycle to achieve nitrification and denitrification reaction for nitrogen removal. High COD and nitrogen removal of more than 90% were achieved under a moderate temperature of 25 °C. As the temperature was stepwise decreased from 25 to 5 °C, COD removal in the system could be constantly maintained while nitrogen removal was deteriorated. Nevertheless, increasing aeration supply could enhance nitrification at low temperature with benefit from complete retention of nitrifying bacteria within the system by membrane separation. At low operating temperature range of 5 °C, nitrogen removal could be recovered to more than 85%. A mathematical model considering diffusion resistance of limiting substrate into the bio-particle is applied to describe nitrogen removal in a membrane separation bioreactor. The simulation suggested that limitation of the oxygen supply was the major cause of inhibition of nitrification during temperature decrease. Nevertheless, increasing aeration could promote oxygen diffusion into the bio-particle. Sufficient oxygen was supplied to the nitrifying bacteria and the nitrification could proceed. In the membrane separation bioreactor, biomass concentration under low temperature operation was allowed to increase by 2–3 times of that of moderate temperature to compensate for the loss of bacterial activities so that the temperature effect was masked.

Nitrous oxide (N2O) emissions during real domestic wastewater treatment in an outdoor pilot-scale high rate algae pond

2019 ◽  
Vol 44 ◽  
pp. 101670 ◽  
Author(s):  
Maxence Plouviez ◽  
Paul Chambonnière ◽  
Andy Shilton ◽  
Michael A. Packer ◽  
Benoit Guieysse
Keyword(s):  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Domestic Wastewater ◽  
Pilot Scale ◽  
High Rate ◽  
N2o Emissions ◽  
Domestic Wastewater Treatment

Ciprofloxacin removal during secondary domestic wastewater treatment in high rate algal ponds

Chemosphere ◽  
2017 ◽  
Vol 180 ◽  
pp. 33-41 ◽  
Author(s):  
Andrea Hom-Diaz ◽  
Zane N. Norvill ◽  
Paqui Blánquez ◽  
Teresa Vicent ◽  
Benoit Guieysse
Keyword(s):  
Wastewater Treatment ◽  
Domestic Wastewater ◽  
High Rate ◽  
High Rate Algal Ponds ◽  
Domestic Wastewater Treatment ◽  
Ciprofloxacin Removal

Improving the energy efficiency of a pilot-scale UASB-digester for low temperature domestic wastewater treatment

2018 ◽  
Vol 135 ◽  
pp. 71-78 ◽  
Author(s):  
Shengnan Xu ◽  
Lei Zhang ◽  
Shengle Huang ◽  
Grietje Zeeman ◽  
Huub Rijnaarts ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Wastewater Treatment ◽  
Low Temperature ◽  
Domestic Wastewater ◽  
Pilot Scale ◽  
Domestic Wastewater Treatment
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