TÁCH LOẠI AMONI, Mn(II) TRONG NƯỚC SỬ DỤNG CỘT HẤP PHỤ ĐÁ ONG BIẾN TÍNH BẰNG CHẤT HOẠT ĐỘNG BỀ MẶT=FIXED – BED COLUMN STUDY ON REMOVAL OF AMONIUM, Mn(II) F-ROM AQUEOUS SOLUTION USING USING SURFACTANT MODIFIED LATERITE SOIL

• Tác giả: Thị Hương Nghiêm, Thành Trung Ngô, Thị Mai Việt Ngô, Thị Hằng Nguyễn, Thị Quỳnh Phạm
• Ngôn ngữ: vie
• Thông tin xuất bản: Tạp chí Phân tích Hóa, Lý và Sinh học, 2019
• Bộ sưu tập: Metadata
• ID: 409628

Tóm tắt

This paper focus on adsorptive removal of amonium and Mn(II) f-rom aqueous solution by using surfactant modified laterite soil. The results indicated that the moving adsorption capacity is depended on flow speed and concentration of amonium and Mn(II). Fixed – bed column adsorption capacity for amonium and Mn(II) is 12.99 mg (at flow speed of 2.0 mL/min and concentration of amonium is 40.77 mg/L) and 2.50 mg (at flow speed of 2.0 mL/min and concentration of Mn(II) is 10.12 mg/L), respectively. The solution of 0.02 M HCl and 0.05 M EDTA is the best for eluting amonium and Mn(II) with effective elution is approximately 98%. The coefficent of enrichment is 26 times for amonium and about 22 times for Mn(II). Concentration of amonium and Mn(II) was analyzed by molecular absorption spectrometry.