EXTRACTION OF 137Cs FROM MOSS USING SOLUTIONS SIMILAR TO ACID RAIN

被引：0

作者：

Cuculovic, Ana A. ^{[1
]}

Veselinovic, Dragan S. ^{[2
]}

机构：

[1] Univ Belgrade, Inst Applicat Nucl Energy, Belgrade, Serbia

[2] Univ Belgrade, Fac Phys Chem, Belgrade, Serbia

来源：

NUCLEAR TECHNOLOGY & RADIATION PROTECTION | 2019年 / 34卷 / 04期

关键词：

H2SO4; HNO3; H2SO4-HNO3; mixture; distilled water; Cs-137; extraction; moss; CETRARIA-ISLANDICA LICHEN; HEAVY-METAL; DESORPTION; DEPOSITION; RADIOACTIVITY; INDICATORS; BRYOPHYTES; PH; BIOMONITORS; (CS)-C-137;

D O I：

10.2298/NTRP190520034C

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Extraction of Cs-137 from: Hypnum cupressiforme and Isothecium myurum mosses was investigated using the following solutions: H2SO4, HNO3, and a mixture of H2SO4 and HNO3 at three pH values (4.61, 5.15, and 5.75) and distilled water (pH = 6.50). After five successive desorption processes lasting 24 hours the following amounts of Cs-137 [%] were extracted from mosses: using acid solutions 19.1-34.7 and 18.4-30.5, and using distilled water 29.1 and 26.9. Sorption of Cs-137 was performed at no less than two sorption points in moss tissue. In the investigated pH region no significant influence of H2SO4 or HNO3 on Cs-137 extraction was noted in relation to water extraction, i. e. extraction with acid rain with pH > 4.6.

引用

页码：361 / 367

页数：7

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