STUDY ON AND FABRICATION OF MATERIAL FROM VIETNAM NATURE ORE TO REMOVING PHOSPHATE IN WASTE WATER CONTAINING CHEMICAL AND FERTILIZER

  • Nguyễn Thị Huệ
  • Nguyễn Thị Hương Giang
  • Vũ Văn Tú
  • Chu Việt Hải
  • Hoàng Minh Thắng

Abstract

    Fabricated material to move phosphate ion on the basis of modified natural pyrolusit ore is arelatively new technology. Selection of solution to manufacture material with the highlyselective and high adsorption capacity is a purpose this study. Optimal conditions such as pH,time modified, modified environment is investigated.The study results showed that at the values pH of 3, heat denatured at 400oC and impregnatethe material in 7% HNO3 acid was received material capable of adsorbing phosphate was thebest. SEM imaging result showed that surface morphological structure of the material wasmuch change after pyrolusite impregnating in acid solution. The concentration of phosphateions is of 10 ppm was decreased below the permitted standard (QCVN 40: 2011).Pyrolusite material was modified by heat and chemical methods for simultaneously treatingefficiency of arsenic and phosphorus in waste water containing fertilizers and chemicals arefeasible.

Keywords: Pyrolusite ore, denatured method, waste water, fertilizer, chemical

điểm /   đánh giá
Published
2016-01-28
Section
ARTICLES