The Effects of Stormwater Infiltration on the Treatability of Emerging Contaminants in Conventional Wastewater Treatment Systems

2012 ◽  
Vol 2012 (5) ◽  
pp. 939-951
Author(s):  
Kenya L. Goodson ◽  
Robert Pitt ◽  
Sam Subramaniam ◽  
Shirley Clark
Keyword(s):  
Wastewater Treatment ◽  
Emerging Contaminants ◽  
Stormwater Infiltration ◽  
Wastewater Treatment Systems ◽  
Conventional Wastewater Treatment

scholarly journals Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater

2007 ◽  
Vol 56 (2) ◽  
pp. 55-61 ◽  
Author(s):  
R. Nogueira ◽  
I. Estevinho ◽  
L. Abrunhosa ◽  
C. Mendonça ◽  
P. Machado ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Microbial Activity ◽  
Ochratoxin A ◽  
Experimental Work ◽  
Biomass Concentration ◽  
Biological Degradation ◽  
Batch Experiments ◽  
Wastewater Treatment Systems ◽  
Conventional Wastewater Treatment

In vineyards the presence of certain fungi may lead to the production of the mycotoxin ochratoxin A (OTA) and subsequent contamination of grapes and wine. Furthermore, winery wastewaters contaminated with OTA may represent an environmental hazard. Therefore, it is imperative to assess the fate of this mycotoxin in conventional wastewater treatment systems. The aim of the present work was to assess the biological degradation of OTA. Experimental work was carried out in batch experiments with initial OTA to biomass concentration ratios of 1.4 μg mg−1, 7.4 μg mg−1 and, 11.9 μg mg−1. The assays were inoculated with activated sludge biomass unadapted to the substance under examination. The proposed bioassay demonstrates that OTA concentrations up to 100 μg L−1 can be degraded by microbial activity in activated sludge.

Optimization and Control Petroleum Refinery Wastewater Treatment Systems — Status, Trends and Needs

1989 ◽  
Vol 24 (3) ◽  
pp. 463-477
Author(s):  
Stephen G. Nutt
Keyword(s):  
Wastewater Treatment ◽  
Process Control ◽  
Petroleum Refinery ◽  
Control Strategies ◽  
Refinery Wastewater ◽  
Statistical Process ◽  
Petroleum Refinery Wastewater ◽  
Optimization And Control ◽  
And Control ◽  
Wastewater Treatment Systems

Abstract Based on discussions in workshop sessions, several recurring themes became evident with respect to the optimization and control of petroleum refinery wastewater treatment systems to achieve effective removal of toxic contaminants. It was apparent that statistical process control (SPC) techniques are finding more widespread use and have been found to be effective. However, the implementation of real-time process control strategies in petroleum refinery wastewater treatment systems is in its infancy. Considerable effort will need to be expended to demonstrate the practicality of on-line sensors, and the utility of automated process control in petroleum refinery wastewater treatment systems. This paper provides a summary of the discussions held at the workshop.

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