Removal of pharmaceutical compounds from synthetic hydrolysed urine using granular activated carbon: Column study and predictive modelling

In Harelbeke a Water Treatment Plant with a capacity of 15,000 m3/day, using Schelde river water has been in operation since April 1995. The treatment process comprises nitrification, dephosphatation by direct filtration, storage into a reservoir, direct filtration, granular activated carbon filtration and disinfection. The design of the three-layer direct filters was based on pilot experiments. The performance of the plant during the five years of operation is discussed. It was found that the removal of atrazin by activated carbon depends on the water temperature.

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REPRODUCIBILITY OF GRANULAR ACTIVATED CARBON FOR DYE TRACER DETECTION

10.1130/abs/2017am-301979 ◽

2017 ◽

Author(s):

Zachary L. Oretsky ◽

◽

Daniel Lehrmann ◽

Geary M. Schindel

Keyword(s):

Activated Carbon ◽

Granular Activated Carbon ◽

Dye Tracer

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COMPETITIVE SORPTION OF FLORESCENT DYE AND GROUNDWATER CONTAMINANTS ON GRANULAR ACTIVATED CARBON

10.1130/abs/2019am-339911 ◽

2019 ◽

Author(s):

Myron Malisse Lummus ◽

◽

Brady A. Ziegler ◽

Geary M. Schindel

Keyword(s):

Activated Carbon ◽

Granular Activated Carbon ◽

Competitive Sorption ◽

Groundwater Contaminants

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The Effect of Granular Activated Carbon and Biochar on the Availability of Cu and Zn to Hordeum sativum Distichum in Contaminated Soil

Plants ◽

10.3390/plants10050841 ◽

2021 ◽

Vol 10 (5) ◽

pp. 841

Author(s):

Marina Burachevskaya ◽

Saglara Mandzhieva ◽

Tatiana Bauer ◽

Tatiana Minkina ◽

Vishnu Rajput ◽

...

Keyword(s):

Heavy Metals ◽

Activated Carbon ◽

Spring Barley ◽

Granular Activated Carbon ◽

Total Content ◽

Metal Compounds ◽

Significant Difference ◽

High Sorption ◽

Living Organisms ◽

Cu And Zn

The presence of heavy metals in the soil could impose serious problems on soil-plant systems due to the accumulation of heavy metals in plants. Even vital elements such as Cu and Zn have a toxic effect in the case of excessive intake by living organisms. The present work aimed to investigate the content of loosely bound (exchangeable, complexed, and specifically sorbed) compounds of Cu and Zn and their availability to spring barley (Hordeum sativum distichum) in contaminated Haplic Chernozem soil under the conditions of a model experiment (five approximate permissible concentrations (APC) and 10 APC of metal). Changes in the bioavailability of the metals upon application of carbon sorbents were observed. An increase in loosely bound metal compounds has been shown under conditions of soil contamination with metals (up to 57% of the total content). The increase in the availability of Cu in the soil was mainly due to the formation of complexed metal forms with organic matter (up to 17%). The availability of Zn was found to be associated with an increase in exchangeable (up to 21%) and specifically sorbed compounds (up to 27%). Granular activated carbon (GAC) and biochar have high sorption properties. A decrease in the content of loosely bound compounds of metals was established, especially in the most mobile forms such as exchangeable and complexed forms. The introduction of sorbents into the soil opened up a new venue for binding heavy metals in situ, eventually leading to a decrease in their bioavailability. The inactivation of Cu and Zn in the soil upon the application of sorbents led to a decrease in metal absorption by spring barley. The highest efficiency of biochar application was established at a dose of 2.5% and 5% in soil contaminations of 5 APC and 10 APC of Cu or Zn. The efficiency of the use of sorbents was more influenced by the dose of application than by the type of sorbent. There was no significant difference between biochar and GAC. Stabilization and inactivation of metals may improve soil fertility and plant growth.

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