NGHIÊN CỨU XÁC ĐỊNH TỔNG HOẠT ĐỘ PHÓNG XẠ ALPHA, BETA TRONG CÁC MẪU NƯỚC THẢI ĐÃ XỬ LÝ TỪ QUÁ TRÌNH CHẾ BIẾN CÁC LOẠI QUẶNG SA KHOÁNG

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Dạng tài liệu

BB

Tác giả

Đoàn Thanh Sơn⁽¹⁾, Ngô Quang Huy, Lê Quốc Việt, Đỗ Thị Ánh Tuyết, Ngô Văn Tuyến, Vương Hữu Anh

Nhan đề

NGHIÊN CỨU XÁC ĐỊNH TỔNG HOẠT ĐỘ PHÓNG XẠ ALPHA, BETA TRONG CÁC MẪU NƯỚC THẢI ĐÃ XỬ LÝ TỪ QUÁ TRÌNH CHẾ BIẾN CÁC LOẠI QUẶNG SA KHOÁNG

Nhan đề tiếng anh

DETERMINATION OF GROSS ALPHA AND BETA RADIOACTIVITIES IN TREATED WASTE WATER FROM THE BEACH SAND MINERAL PROCESSING

Nguồn trích

Tạp chí Phân tích Hóa, Lý và Sinh học

Năm xuất bản

2023

Số

3

Trang

01

ISSN

Từ khóa

Từ khóa tiếng anh

Tóm tắt

The determination of gross alpha and beta activities in waters with the low dissolved solid materialscan be easily done. However, for the treatment of liquid wastes containing high radioactivity from the beach sand mineral processing, a large amount of chemicals have been introduced to form soluble salts, which are mainly NaCl, that contributes to the decrease in performance, and in sensitivity of the measurement, resulting in the inaccurate or even impossible determination of the gross alpha and beta activities. The method of separating radioactive elements from the interfering salt background by co-precipitation usingBaRa(SO4)2, and Fe(OH)3 was performed in this paper. The study was carried out on treated waste samples from the beach sand mineral processing. The results showed that the efficiency of the radioactive elements separation when the alpha activity was from 3.5 Bq/L and the beta from 2 Bq/L reached up to 95% and then we could easily determine the gross alpha and beta radioactivity in the separated fractions with high stability and accuracy. Limit of detection with alpha and beta for treated waste water from the beach sand mineral processing was 0.0074 Bq/L and 0.021 Bq/L, respectively.

Tóm tắt tiếng anh

The determination of gross alpha and beta activities in waters with the low dissolved solid materialscan be easily done. However, for the treatment of liquid wastes containing high radioactivity from the beach sand mineral processing, a large amount of chemicals have been introduced to form soluble salts, which are mainly NaCl, that contributes to the decrease in performance, and in sensitivity of the measurement, resulting in the inaccurate or even impossible determination of the gross alpha and beta activities. The method of separating radioactive elements from the interfering salt background by co-precipitation usingBaRa(SO4)2, and Fe(OH)3 was performed in this paper. The study was carried out on treated waste samples from the beach sand mineral processing. The results showed that the efficiency of the radioactive elements separation when the alpha activity was from 3.5 Bq/L and the beta from 2 Bq/L reached up to 95% and then we could easily determine the gross alpha and beta radioactivity in the separated fractions with high stability and accuracy. Limit of detection with alpha and beta for treated waste water from the beach sand mineral processing was 0.0074 Bq/L and 0.021 Bq/L, respectively.

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