Determination of Sex Hormones and Nonylphenol Ethoxylates in the Aqueous Matrixes of Two Pilot-Scale Municipal Wastewater Treatment Plants

2004 ◽  
Vol 38 (11) ◽  
pp. 3028-3035 ◽  
Author(s):  
Mar Esperanza ◽  
Makram T. Suidan ◽  
Fumitake Nishimura ◽  
Zhong-Min Wang ◽  
George A. Sorial ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sex Hormones ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Nonylphenol Ethoxylates ◽  
Municipal Wastewater Treatment ◽  
Municipal Wastewater Treatment Plants

Fate of sex hormones in two pilot-scale municipal wastewater treatment plants: Conventional treatment

Chemosphere ◽  
2007 ◽  
Vol 66 (8) ◽  
pp. 1535-1544 ◽  
Author(s):  
Mar Esperanza ◽  
Makram T. Suidan ◽  
Ruth Marfil-Vega ◽  
Cristina Gonzalez ◽  
George A. Sorial ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sex Hormones ◽  
Conventional Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Municipal Wastewater Treatment ◽  
Municipal Wastewater Treatment Plants

scholarly journals Innovative technologies in municipal wastewater treatment plants in Sweden to improve Baltic Sea water quality

2018 ◽  
Vol 45 ◽  
pp. 00113 ◽  
Author(s):  
Józef Trela ◽  
Elżbieta Płaza
Keyword(s):  
Wastewater Treatment ◽  
Baltic Sea ◽  
Municipal Wastewater ◽  
New Technologies ◽  
Sea Water ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Municipal Wastewater Treatment ◽  
Treatment Processes ◽  
Municipal Wastewater Treatment Plants

The article presents new trends in the treatment of municipal wastewater in Sweden caused by the constantly increasing requirements for discharging pollutants into Baltic Sea waters. The development of new technologies for nitrogen removal, pharmaceutical residues removal and the possibility of using membrane processes in wastewater treatment is presented. The state of research on innovative wastewater treatment processes at the level of pilot-scale tests and their implementation in full technical scale has been described. These technologies can allow the application of new, economical and environmentally friendly wastewater treatment processes based on biological, chemical and physical methods. Swedish wastewater treatment plants are preparing to meet the new conditions required for discharged wastewater with a value of 6 mg N/L for total nitrogen and 0.2 mg P/L for total phosphorus. This requires large investments in the reconstruction of municipal wastewater treatment plants and the introduction of new treatment processes.

Microsieving in primary treatment: effect of chemical dosing

2016 ◽  
Vol 74 (2) ◽  
pp. 438-447 ◽  
Author(s):  
J. Väänänen ◽  
M. Cimbritz ◽  
J. la Cour Jansen
Keyword(s):  
Wastewater Treatment ◽  
Phosphorus Removal ◽  
Suspended Solids ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Primary Treatment ◽  
Municipal Wastewater Treatment ◽  
Chemically Enhanced Primary Treatment ◽  
Municipal Wastewater Treatment Plants

Primary and chemically enhanced primary wastewater treatment with microsieving (disc or drum filtration) was studied at the large pilot scale at seven municipal wastewater treatment plants in Europe. Without chemical dosing, the reduction of suspended solids (SS) was (on average) 50% (20–65%). By introducing chemically enhanced primary treatment and dosing with cationic polymer only, SS removal could be controlled and increased to >80%. A maximum SS removal of >90% was achieved with a chemical dosing of >0.007 mg polymer/mg influent SS and 20 mg Al3+/L or 30 mg Fe3+/L. When comparing sieve pore sizes of 30–40 μm with 100 μm, the effluent SS was comparable, indicating that the larger sieve pore size could be used due to the higher loading capacity for the solids. Phosphorus removal was adjusted with the coagulant dose, and a removal of 95–97% was achieved. Moreover, microsieving offers favourable conditions for automated dosing control due to the low retention time in the filter.

Elimination of selected pharmaceuticals by biosolids from municipal wastewater treatment plants: importance of modest pH change and degree of mineralization

2010 ◽  
Vol 62 (5) ◽  
pp. 1084-1089 ◽  
Author(s):  
K. Kimura ◽  
H. Hara ◽  
Y. Watanabe
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Municipal Wastewater Treatment ◽  
Ph Change ◽  
Degree Of Mineralization ◽  
Ph Conditions ◽  
Municipal Wastewater Treatment Plants ◽  
Natural Water Bodies

Lab-scale batch experiments with biosolids collected from a full-scale activated sludge system (AS) and a pilot-scale membrane bioreactor (MBR) were carried out to investigate the mechanisms of elimination of 5 acidic pharmaceuticals and 2 neutral pharmaceuticals. Batch elimination experiments were conducted under the conditions of pH of 6 and 7, and a great impact of pH on elimination of pharmaceuticals was shown by the significant differences in elimination rates under different pH conditions: elimination of pharmaceuticals was enhanced under the condition of lower pH regardless of the type of biosolid. Degree of mineralization of ibuprofen was also investigated in this study by using 14C-labeled compounds. Although ibuprofen has been considered to be a readily biodegradable pharmaceutical in previous studies, the results obtained in this study demonstrated that the degree of mineralization of ibuprofen would be limited in biological wastewater treatment including MBRs. The results obtained in this study imply that a large portion of pharmaceuticals that have been considered “biodegradable”, such as ibuprofen, entering into wastewater treatment plants will eventually be discharged into natural water bodies as intermediates, although concentrations of them may look reduced on the basis of common analytical methods (i.e. GC/MS or LC/MS/MS).

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