Год выпуска: 2012 Автор: Aadil Abbas,Shahzad Murtaza and Kashif Shahid Издательство: LAP Lambert Academic Publishing Страниц: 100 ISBN: 9783659156090
Описание
In the present study biosorption method was used which was quite effective and economical. For this purpose corn cob powder (Zea maize) waste of very popular food crop in Asia was used as biosorbent. The efficiency of Corn Cob for the remediation of Chromium (VI) was studied by varying parameters: pH, temperature, contact time, biosorbent concentration with specified ranges mentioned on experimental work design. It was observed that percentage removal of Cr (VI) from its aqueous solution increased when pH and biosorbent concentration increased and temperature and contact time decreased. Test solutions of known concentration of Cr (VI) were prepared. Percentage reduction was calculated for each experiment. Analysis of Variance was applied to know the significance of certain variables. Values >0.05 were significant. Maximum percentage reduction of Cr (VI) was 98.64.
Ирина! Также хочу поздравить Вас с Новым Годом!!! Огромное спасибо за консультации по курсовому по статистике, мне все в нем понятно! Теперь если что-то понадобится, еще буду с удовольствием обращаться к Вам. Удачи и трудовых успехов Вам в Новом году, еще раз спасибо.