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Hatchery release has been used for the conservation of green turtles for many years. To improve the rescue management of released individuals and avoid their negative impact on wild populations, the application of individual markers is particularly important. Quick response (QR) code was used to tag the individual of released turtles in Huidong Sea Turtle National Nature Reserve, the unique spawning site and nature reserve for sea turtles in China. The viscosity differences of four safe and non-toxic glues (e.g., epoxy resin, acrylic glue, ABS glue, and nail gel 401) in different age groups were tested. The results revealed that epoxy resin glue has the best adhesion effect on 8-year-old turtles, and the intact rate after 50 days was 100%. It is suitable to be used for the rescue of stranded turtles within 50 days of release. Nail gel 401 has the best adhesion effect on the carapace of 1-year-old turtles, with an intact rate of 100% after 50 days, which can be used for short-time conservation of young turtles. The release experiments of 18 eight-year-old sea turtles with passive integrated transponder (PIT) tags, QR codes, and steel tags showed that QR codes are conducive to public participation and improve rescue efficiency. In fact, QR code is a powerful measure to overcome the limitations of the existing individual label. However, the QR code fused with turtle carapace can only be applied for turtle rescue and tracing in the short-term due to its limited persistence.

A new organic synthetic anion exchange resin (LSC-436) containing cyclohexylamine group was prepared for the sorption of rhenium. The traditional batch tests were applied to investigate the mechanism of sorption for rhenium on LSC-436 with respect to contact time, initial rhenium concentration, the value of pH and the amount of resin. The experimental data obtained from batch tests were modeled using the Langmuir/Freundlich isotherms and pseudofirst-kinetic and pseudo-second-kinetic models to obtain key dynamic parameters for investigating the mechanism of sorption of rhenium. The LSC-436 resin was characterized using scanning electron microscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) techniques to further study the sorption mechanism.

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In order to ensure the long-term effective isolation of radionuclides from human beings to the environment, pyrite and magnetite, which exist widely and stably in the geological environment, can be considered to reduce the strong mobility of high-valence redox-sensitive nuclides to the low-valence nuclides with low mobility. In this work, the reducing reaction between pyrite, magnetite, and redox-sensitive radionuclides (U, Se, Tc, and Np) in the Gansu proposed-treatment plant area was under simulation by PHREEQC. Due to the considerable existence of quartz and calcite in the Gansu proposed-treatment plant area surrounding the rock of interest, the influence of the dissolved Ca2+ and SiO32- should be taken into account. The corresponding precipitation saturation index of the complex (UOX, Se(s), and TcO2) and species of interest was calculated, and the results suggested that pyrite can significantly reduce the high-valence radionuclides (U, Se, Tc, and Np), and their corresponding precipitation saturation indexes (SIs) were usually positive. However, magnetite, in a given condition, showed a certain reducing effect against Se and Np and a poor effect on U and Tc. It was worth noting that the aqueous pH in the system always remained constant because of the CO2 partial pressure of the underground biosphere under this long-term time scale. These conclusions have an important guiding significance for the prevention and retention of radioactive pollution released into the biological environment.