STUDY ON AND TREATMENT OF AMMONIUM IN WASTE WATER BY PYROLUSITE ORE IN VIETNAM

  • Nguyễn Thị Huệ
  • Lê Thị Thảo
  • Phùng Đức Hòa
  • Vũ Văn Tú
  • Nguyễn Thị Thanh Hải
  • Nguyễn Thị Hương Giang

Abstract

    Pyrolusite ore, from Tuyen Quang province, Vietnam after denaturating, can be used forremoving ammonium ion from water environment. The optimum conditions as reaction time,temperature have been studied. The optimal time to achieve the highest performance is 120minutes and the optimal ore size is from 0.2 mm to 0,5mm. The obtained results obeyedLangmuir and Freundlich adsorption isotherm equation. SEM image showed that themorphology surface of the pyrolusite ore has changed after denatured by heat, acids andbases.

Keyword: pyrolusite ore, adsorption, ammonium

điểm /   đánh giá
Published
2016-01-05
Issue
Vol. 20 No. 3 (2015)
Section
ARTICLES