Reuse treatment with ozonation, biofiltration, and activated carbon adsorption for total organic carbon control and disinfection byproduct regulation compliance

2020 ◽  
Vol 2 (5) ◽  
Author(s):  
R. Scott Summers ◽  
Steven Takeo Shiokari ◽  
Sierra Johnson ◽  
Eric Peterson ◽  
Yun Yu ◽  
...  
2019 ◽  
Vol 166 ◽  
pp. 202-210
Author(s):  
Yulong Yang ◽  
Jiao Feng ◽  
Shicui Zhu ◽  
Jinshu Zhou ◽  
Kejia Zhang ◽  
...  

2004 ◽  
Vol 4 (4) ◽  
pp. 71-78 ◽  
Author(s):  
D.H. Metz ◽  
J. DeMarco ◽  
R. Pohlman ◽  
F.S. Cannon ◽  
B.C. Moore

The objective of this study was to compare the adsorption capabilities of the virgin carbon to the twelve and five times reactivated granular activated carbon (GAC). From a water treatment plant operator's perspective, there were very few practical differences in adsorption among the carbons tested for total organic carbon (TOC) and disinfection byproduct (DBP) precursors. However, some overall trends were observed. The GAC that was regenerated 5 times (R5) generally showed greater DBP precursor adsorption than the other GACs especially at the beginning of the runs. In some cases the carbon that was reactivated 12/13 times (R12 and R13) adsorbed slightly less DBP precursors than the other GACs especially in the latter part of the runs. The virgin (V) carbon performed better than the other GACs relative to DBP precursor removal in the latter part of the runs.


Ciencia Unemi ◽  
2019 ◽  
Vol 12 (29) ◽  
pp. 51-62
Author(s):  
Richard Iván Ramírez-Palma ◽  
Alejandro Crisóstomo Véliz-Aguayo ◽  
Juan Francisco Garcés-Vargas ◽  
Lucrecia Cristina Moreno-Alcívar ◽  
Gerardo Antonio Herrera-Brunett ◽  
...  

El objetivo de esta investigación fue la reducción de las trazas de materia orgánica en el agua potable por medio del uso de zeolita natural, zeolita activada y la comparación con la eficiencia de la adsorción del carbón activado. Se utilizó agua suministrada por la compañía AGUAPEN  E.P. y materiales adsorbentes zeolita natural, zeolita activada y carbón activado. La zeolita se activó térmicamente a 600ªC. Se realizaron pruebas en columnas de adsorción a escala (RSSCT – Rapid Small-Scale Column Test) para carbón activado granular (GAC) de acuerdo a la norma ASTM 6586 para determinar la eficiencia de la adsorción de las trazas de materia orgánica en el agua potable. Se determinó la eficiencia en base al parámetro de carbono orgánico total en muestras simple del afluente y efluente del agua tratada cada 3 horas durante 24 horas. El incremento de la presión de trabajo evidencia el punto de ruptura o colmatación del adsorbente. La concentración del Carbón Orgánico Total (COT) se determinó mediante el análisis de la combustión de la muestra con el detector infrarrojo no dispersivo de dióxido de carbono (CO2). Los resultados mostraron reducción de materia orgánica con el uso de zeolita natural y zeolita activada, con respecto al carbón activado.AbstractThe objective of this research was the reduction of organic matter traces in drinking water through the use of natural and activated zeolite, and the comparison with the efficiency of activated carbon adsorption. Water supplied by the company AGUAPEN E.P. was used, and adsorbent materials as natural zeolite, activated zeolite and activated carbon were utilized. The zeolite was thermally activated at 600 ° C. Tests were performed on scale adsorption columns (RSSCT - Rapid Small Scale Column Test) for Granular Activated Carbon (GAC) according to ASTM 6586 to determine the efficiency of the adsorption of traces of organic matter in drinking water. Efficiency was determined based on the total organic carbon parameter in simple affluent and effluent samples of treated water every 3 hours during 24 hours. The increase in working pressure shows the point of rupture or clogging of the adsorbent. The concentration of Total Organic Carbon (TOC) was determined by analyzing the sample combustion with a non-dispersive infrared carbon dioxide (CO2) detector. The results showed the reduction of organic matter in natural zeolite and activated zeolite compared to activated carbon. 


Chemosphere ◽  
2008 ◽  
Vol 70 (8) ◽  
pp. 1366-1374 ◽  
Author(s):  
Eva Rodríguez ◽  
Angel Encinas ◽  
Francisco J. Masa ◽  
Fernando J. Beltrán

1994 ◽  
Vol 29 (8) ◽  
pp. 221-233
Author(s):  
Shimshon Belkin ◽  
Asher Brenner ◽  
Alon Lebel ◽  
Aharon Abeliovich

A case study is presented, in which two approaches to the treatment of complex chemical wastewater are experimentally compared: an end-of-pipe “best available technology” option and an in-plant source segregation program. Both options proved to be feasible. Application of the powdered activated carbon treatment (PACT™) process for the combined end-of-pipe stream yielded up to 93% reduction of dissolved organic carbon, with complete toxicity elimination. In order to examine the potential for applying a conventional activated sludge process, a simplified laboratory screening procedure was devised, aimed at establishing baseline data of removability potential, defined either by biodegradation, activated carbon adsorption or volatilization. Using this procedure, the major source of the non-biodegradable fraction in the combined park's wastewater was traced to a single factory, from which twelve individual source streams were screened. The results allowed the division of the tested sources into three groups: degradable, volatile, and problematic. A modified wastewater segregation and treatment program was accordingly proposed, which should allow an efficient and environmentally acceptable solution. This program is presently at its final testing stages, at the conclusion of which a full comparison between the two approaches will be carried out.


1998 ◽  
Vol 32 (6) ◽  
pp. 1841-1851 ◽  
Author(s):  
Lois J. Uranowski ◽  
Charles H. Tessmer ◽  
Radisav D. Vidic

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