Nghiên cứu xử lý phenol bằng than hoạt tính sọ dừa

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Tác giả: Phạm Hương Quỳnh

Ngôn ngữ: Vie

Ký hiệu phân loại: 541.2 Theoretical chemistry

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ Đại học Thái Nguyên, 2019

Mô tả vật lý: 99-105

Bộ sưu tập: Metadata

ID: 398747

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Tóm tắt
Chủ đề

Phenol phát sinh ra trong các dòng thải của quá trình công nghiệp. Phenol được xem là chất cựcđộc nếu đi vào cơ thể qua đường miệng. Nghiên cứu này thực hiện nhằm xác định các thông sốcủa than hoạt tính sọ dừa được sản xuất bởi công ty Tam đỉnh Phú Yên và khả năng xử lý phenoltrong nước của than sọ dừa. Kết quả cho thấy Diện tích bề mặt riêng là 891,7021 m2/g, diện tích bềmặt riêng của lỗ nhỏ (micropores) là 848,3714 m2/g m2/g. Độ ẩm <
8%, hàm lượng tro 0,8%, cỡhạt chủ yếu của than từ 2,38 đến 4,7% chiếm 97,2%. Độ rỗng lớn nhất tại cỡ hạt 1,25-2 mm chiếm52,77%. Với diện tích bề mặt riêng của lỗ nhỏ là 848,3714 m2/g, khả năng xử lý phenol của thanhoạt tính sọ dừa đạt tốt nhất ở pH = 5, thời gian phản ứng 150 phút, khối lượng vật liệu hấp phụ từ1-2,5 g
hiệu suất xử lý đạt 93,01% đến 98,00% với phenol dòng vào từ 20-52 mg/l., Tóm tắt tiếng anh, Phenols are generated in the wastewater of industrial processes. Phenol is extremely poisonouswhen entering the human body through the mouth. This study was conducted to determine theparameters of activated charcoal from coconut charcoal produced by Tam Dinh-Phu YenCompany and the ability of coconut charcoal in wastewater containing phenol. The results showedthat the specific surface area was 891,7021 m2/g and the surface area of the micropores was848,3714 m2/g. The moisture was less than 8 percent
the ash was from 2.38% to 4.7% and theparticle size from 2.38% to 4.7% accounted for 97.2%. The highest emptiness at grain size was1.25-2mm, accounting for 52.77 percent with a small surface area of 848.3714 m2/g. The optimumefficiency of activated charcoal achieved best at pH = 5, the reaction time of 150 minutes,adsorption volume of 1-2.5 g
The processing efficiency was from 93.01% to 98.00% with theinfluent of 20-52mg/l.

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