scholarly journals Management Options Supporting a Dual Discharge Strategy for a Major Municipal Wastewater Effluent

2003 ◽  
Author(s):  
Daniel K. Rucinski ◽  
Martin T. Auer ◽  
David W. Watkins, Jr. ◽  
Steven W. Effler ◽  
Rakesh K. Gelda ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Wastewater Effluent ◽  
Management Options

scholarly journals Evaluation of treated municipal wastewater effluent for agricultural irrigation purposes using the fuzzy effluent quality index (FEQI)

2019 ◽  
Vol 20 (1) ◽  
pp. 148-156
Author(s):  
Seyed Hesam Alihosseini ◽  
Ali Torabian ◽  
Farzam Babaei Semiromi
Keyword(s):  
Fuzzy Inference System ◽  
Quality Index ◽  
Municipal Wastewater ◽  
Fuzzy Inference ◽  
Treatment Plant ◽  
Wastewater Effluent ◽  
Inference System ◽  
Effluent Quality ◽  
Proposed Model ◽  
Treated Municipal Wastewater

Abstract The issues of freshwater scarcity in arid and semi-arid areas could be reduced via treated municipal wastewater effluent (TMWE). Artificial intelligence methods, especially the fuzzy inference system, have proven their ability in TMWE quality evaluation in complex and uncertain systems. The primary aim of this study was to use a Mamdani fuzzy inference system to present an index for agricultural application based on the Iranian water quality index (IWQI). Since the uncertainties were disregarded in the conventional IWQI, the present study improved this procedure by using fuzzy logic and then the fuzzy effluent quality index (FEQI) was proposed as a hybrid fuzzy-based index. TMWE samples of the Gheitarie wastewater treatment plant in Tehran city recorded from 2011 to 2017 were taken into consideration for testing the ability of the proposed index. The results of the FEQI showed samples categorized as ‘Excellent’ (21), ‘Good’ (10), ‘Fair’ (4), and ‘Marginal’ (1) for the warm seasons, and for the cool seasons, the samples categorized as ‘Excellent’, ‘Good’ and ‘Fair’ were 17, 18 and 1, respectively. Generally, a comparison between the IWQI and proposed model results revealed the FEQI's superiority in TMWE quality assessment.

Simultaneous ozone and granular activated carbon for advanced treatment of micropollutants in municipal wastewater effluent

Chemosphere ◽  
2019 ◽  
Vol 234 ◽  
pp. 845-854 ◽  
Author(s):  
Hooman Vatankhah ◽  
Stephanie M. Riley ◽  
Conner Murray ◽  
Oscar Quiñones ◽  
K. Xerxes Steirer ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Municipal Wastewater ◽  
Granular Activated Carbon ◽  
Wastewater Effluent ◽  
Advanced Treatment

The impact of municipal wastewater effluent on field-deployed freshwater mussels in the Grand River (Ontario, Canada)

2013 ◽  
Vol 33 (1) ◽  
pp. 134-143 ◽  
Author(s):  
Patricia L. Gillis ◽  
François Gagné ◽  
Rodney McInnis ◽  
Tina M. Hooey ◽  
Emily S. Choy ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Freshwater Mussels ◽  
Wastewater Effluent ◽  
Grand River ◽  
The Impact

scholarly journals Enhanced production of biomass and lipids by Euglena gracilis via co-culturing with a microalga growth-promoting bacterium, Emticicia sp. EG3

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Tadashi Toyama ◽  
Tsubasa Hanaoka ◽  
Koji Yamada ◽  
Kengo Suzuki ◽  
Yasuhiro Tanaka ◽  
...  
Keyword(s):  
Biomass Production ◽  
Euglena Gracilis ◽  
Culture System ◽  
Municipal Wastewater ◽  
Wastewater Effluent ◽  
Biofuel Production ◽  
Second Step ◽  
Microalgal Biomass ◽  
Enhanced Production ◽  
Growth Promoting

Abstract Background Euglena gracilis, a unicellular flagellated microalga, is regarded as one of the most promising species as microalgal feedstock for biofuels. Its lipids (mainly wax esters) are suitable for biodiesel and jet fuel. Culture of E. gracilis using wastewater effluent will improve the economics of E. gracilis biofuel production. Enhancement of the productivity of E. gracilis biomass is critical to creating a highly efficient biofuels production system. Certain bacteria have been found to promote microalgal growth by creating a favorable microenvironment. These bacteria have been characterized as microalgae growth-promoting bacteria (MGPB). Co-culture of microalgae with MGPB might offer an effective strategy to enhance microalgal biomass production in wastewater effluent culture systems. However, no MGPB has been identified to enhance the growth of E. gracilis. The objectives of this study were, therefore, to isolate and characterize the MGPB effective for E. gracilis and to demonstrate that the isolated MGPB indeed enhances the production of biomass and lipids by E. gracilis in wastewater effluent culture system. Results A bacterium, Emticicia sp. EG3, which is capable of promoting the growth of microalga E. gracilis, was isolated from an E. gracilis-municipal wastewater effluent culture. Biomass production rate of E. gracilis was enhanced 3.5-fold and 3.1-fold by EG3 in the co-culture system using a medium of heat-sterilized and non-sterilized wastewater effluent, respectively, compared to growth in the same effluent culture but without EG3. Two-step culture system was examined as follows: E. gracilis was cultured with or without EG3 in wastewater effluent in the first step and was further grown in wastewater effluent in the second step. Production yields of biomass and lipids by E. gracilis were enhanced 3.2-fold and 2.9-fold, respectively, in the second step of the system in which E. gracilis was co-cultured with EG3 in the first step. Conclusion Emticicia sp. EG3 is the first MGPB for E. gracilis. Growth-promoting bacteria such as EG3 will be promising agents for enhancing E. gracilis biomass/biofuel productivities.

Dead-end ultrafiltration for pretreatment of RO in reclamation of municipal wastewater effluent

2004 ◽  
Vol 243 (1-2) ◽  
pp. 107-113 ◽  
Author(s):  
Jian-Jun Qin ◽  
Maung Htun Oo ◽  
Hsiaowan Lee ◽  
Rob Kolkman
Keyword(s):  
Municipal Wastewater ◽  
Wastewater Effluent ◽  
Dead End

scholarly journals Erratum to: Reuse of tertiary municipal wastewater effluent for irrigation of Cucumis melo L.

2012 ◽  
Vol 31 (4) ◽  
pp. 673-673
Author(s):  
S. Martínez ◽  
R. Suay ◽  
J. Moreno ◽  
M. L. Segura
Keyword(s):  
Cucumis Melo ◽  
Municipal Wastewater ◽  
Wastewater Effluent ◽  
Cucumis Melo L
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