scholarly journals Risk assessment of using output effluent of urban wastewater treatment plants (Case study: Northern Isfahan wastewater treatment plant)

2021 ◽  
Vol 19 (2) ◽  
pp. 0-0
Author(s):  
Elahe Vaseghi ◽  
Mohammad Reza Zare Mehrjerdi ◽  
Alireza Nikouei ◽  
Hossein Mehrabi Boshrabadi
Keyword(s):  
Risk Assessment ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

Reuse potential of urban wastewater treatment plant effluents in Turkey: a case study on selected plants

Desalination ◽  
2007 ◽  
Vol 215 (1-3) ◽  
pp. 159-165 ◽  
Author(s):  
Idil Arslan-Alaton ◽  
Aysegul Tanik ◽  
Suleyman Ovez ◽  
Gulen Iskender ◽  
Melike Gurel ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

scholarly journals Antidepressants in urban wastewater treatment plant: occurrence, removal and risk assessment

2017 ◽  
Vol 19 (1) ◽  
pp. 100-106 ◽  
Keyword(s):  
Risk Assessment ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Hazard Quotient ◽  
Treatment Plant ◽  
Aquatic Organisms ◽  
Aquatic Organism ◽  
Sample Volume ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

<p>In this study, an analytical methods for determination of antidepressants including (diazepam (DZP), lorazepam (LZP), carbamazepine (CBZ), fluoxetine (FLU)) was developed. The concentration of antidepressants was monitored in Konya Urban Wastewater Treatment Plant influent and effluent samples for one years. &nbsp;Environmental risk assessment was performed with detected concentration with treatment plant effluent wastewater by hazard quotient (HQ) methods. Oasis HLB cartridges with SPE system was used for extraction of wastewater samples. The effect of sample volume and pH, different analyte concentration, pretreatment and matrix on efficiency of cartridges were optimized. Quantitative analyses of the target compounds were performed by LC/MS-MS system. Recoveries of antidepressant compounds from fortified wastewater were over 87% for three different fortification levels. The limits of detection were determined between 0.006 and 0.118 ng l<sup>-1</sup>. CBZ, FLU and LZP concentration in influent varied from 6.3 to 135.6 ng l<sup>-1</sup>, &lt;dl to 2.6 ng l<sup>-1</sup>, &lt;dl to 4.8 ng l<sup>-1</sup>, respectively, while DZP was not detected. CBZ, DZP, FLU and LZP concentrations in the effluent was determined as &lt;dl-245.1 ng l<sup>-1</sup>, &lt;dl-0.21 ng l<sup>-1</sup>, &lt;dl-2.7 ng l<sup>-1</sup>, &lt;dl-2.2 ng l<sup>-1</sup>, respectively. Antidepressants were generally removed in January, February, and August. The high removal was determined for CBZ compounds as %100 at January. The low removal was determined for FLU compounds as %2.4 at January.</p> <p>While the HQ values for DZP, LZP, CBZ were determined below 0.1 which means insignificant risk to aquatic organisms, HQ values for FLU determined above 0.1 which means low risk to aquatic organism</p>

Life Cycle Assessment of Urban Wastewater Treatment

2014 ◽  
Vol 535 ◽  
pp. 346-349
Author(s):  
Mei Wang ◽  
Ming Yang ◽  
Jun Liu ◽  
Jian Fen Li
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Wastewater Treatment Plant ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Urban Wastewater ◽  
Urban Sewage ◽  
Urban Wastewater Treatment ◽  
Whole Life Cycle

Effect and benefits of a product or service could be analyzed and evaluated by life cycle assessment during the whole life cycle. Urban sewage treatment plants could improve and control urban water pollution escalating, but it also had certain harm to environment. Effect and benefits of urban wastewater treatment plant A and B were analyzed and evaluated, 13 factors were selected, and comprehensive benefits were researched quantificationally using the method of analytic hierarchy process. It found that urban wastewater treatment plant A who applied A/O process had better benefits than urban wastewater treatment plant B who applied BIOLAK process.

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