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O chirurgii inaczej

Paweł Kabata

Kartka z notesu

Helena Sekuła

Znak żółwia

Eugeniusz Paukszta


William Peter Blatty

Tõlkinud Silver Sära Kaanepilt Meelis Krošetskin 57 nädalat New York Timesi bestsellerite tabelis figureerinud ning neist 17 nädalat seal esikohta hoidnud menuromaan jutustab loo 12-aastasest tüdrukust Regan MacNeilist, kelle keha võtab üle deemon Pazuzu, kellega asuvad võitlusse katoliku preestrid Lankester Merrin ja Damien Karras. Üsna karm ja kirjeldatud detailides vägagi otsekohene romaan ei sobi ehk lugemiseks nõrgema närvikavaga ja nooremas eas ulmehuvilistele.

Biosorption for Wastewater Contaminants

Группа авторов

Pollution due to various anthropogenic activities continues to increase. In terms of water pollutants, organic and inorganic pollutants are the most problematic. Although several measures have been proposed and implemented to prevent or reduce contamination, their increased concentration in water bodies has created serious concerns. Over the years, the problem has been aggravated by industrialization, urbanization and the exploitation of natural resources. The direct discharge of wastewater contaminants and their geographical mobilization have caused an increase in concentration in ground, surface, fluvial and residual waters. Extensive information about detection and disposal methods is needed in order to develop technological solutions for a ­variety of environments, both urban and rural. This book provides up-to-date information on wastewater contaminants, aimed at researchers, engineers and technologists working in this field. Conventional physicochemical techniques used to remove contaminants from wastewater include ion exchange, precipitation, degradation, coagulation, coating, membrane processes and adsorption. However, these applications have technological and economic limitations, and involve the release of large amounts of chemical reagents and by-products that are themselves difficult to remove. Biosorption – the use of organically generated material as an adsorbent – is attracting new research and scholarship. Thermally-treated calcined biomaterials may be treated to remove heavy metals from wastewater. To ensure the elimination of these contaminants, existing solutions must be integrated with intelligent biosorption functions. Biosorption for Wastewater Contaminants will find an appreciative audience among academics and postgraduates working in the fields of environmental biotechnology, environmental engineering, wastewater treatment technology and environmental chemistry.