By Ferhan Cecen, Ouml;zgür Aktas
This monograph offers accomplished insurance of applied sciences which combine adsorption and organic procedures in water and wastewater therapy. The authors supply either an creation to the subject in addition to a close dialogue of theoretical and sensible considerations.After a assessment of the fundamentals fascinated by the chemistry, biology and know-how of built-in adsorption and organic elimination, they talk about the setup of pilot- and full-scale remedy amenities, protecting powdered in addition to granular activated carbon. They elucidate the standards that effect the winning operation of built-in structures. Their dialogue on built-in structures expands from the consequences of environmental to the removing of assorted pollution, to regeneration of activated carbon, and to the research of such platforms in mathematical phrases. The authors finish with a glance at destiny wishes for examine and develoment.A actually worthy source for environmental engineers, environmental and water chemists, in addition to execs operating in water and wastewater therapy.
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Extra info for Activated Carbon for Water and Wastewater Treatment: Integration of Adsorption and Biological Treatment
The resulting material, called biological activated carbon (BAC), is extensively discussed in later chapters. 2 Adsorption Adsorption is considered to be an important phenomenon in most natural physical, biological, and chemical processes, and activated carbon is the most widely used adsorbent material in water and wastewater treatment. Adsorption is the accumulation or concentration of substances at a surface or interface. The adsorbing phase is termed the adsorbent, and the material being adsorbed the adsorbate.
1 shows the main transport mechanisms of an adsorbate to a carbon surface and the adsorption phenomena. 1 External and intraparticle (internal) transport of an adsorbate in an activated carbon particle. 2 Adsorption surrounding the activated carbon particle. In quiescent water where the activated carbon is in a suspended state this transport may occur through diffusion. It may also occur through turbulent mixing such as during ﬂow through a packed bed of GAC, or mixing of PAC in a water treatment unit .
In this regard, BAC ﬁltration is a well-known unit process that combines the merits of adsorption and biological removal in the same reactor. While the majority of GAC adsorption applications target the removal of natural and/or anthropogenic organic compounds, BAC ﬁltration is also suited to some extent for the elimination of inorganics such as ammonia, perchlorate, and bromate. The characteristics of this unit process is extensively addressed throughout Chapters 8–11. 5 Improved Control of Pollutants through Integrated Adsorption and Biological Treatment Water and wastewaters are multicomponent mixtures.
Activated Carbon for Water and Wastewater Treatment: Integration of Adsorption and Biological Treatment by Ferhan Cecen, Ouml;zgür Aktas