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Sustainable Development of Chinses Nuclear Power

Zhao Renkai

Strategic Study of CAE 2000, Volume 2, Issue 10, Pages 33-41

Abstract: commonly concerned with Chinese nuclear power development, such as uranium resources、nuclear safety、radioactive

Keywords： nuclear energy uranium resources nuclear safety radioactive westes localization

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Cesium removal from radioactive wastewater by adsorption and membrane technology

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11783-024-1798-1

Abstract:

● Removal of cesium from radioactive wastewater is still a challenging

Keywords： Cesium Adsorption Membrane separation Advanced liquid processing system Fukushima nuclear accident

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Review on the marine radioactive-pollution monitoring and assessment technology

Chen Liqi,He Jianhua1,Lin Wuhui,YuWen, MenWu

Strategic Study of CAE 2011, Volume 13, Issue 10, Pages 34-39

Abstract:

To review the marine radioactive-pollution monitoring and assessmentnon-human species radiation protection and assessment were discussed, including the assessment of marine radioactive-pollution

Keywords： radioactive-pollution monitoring technology and network assessment ocean

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Geological Disposal of High Level Radio Active Waste：Progress and Challenges

Wang Ju

Strategic Study of CAE 2008, Volume 10, Issue 3, Pages 58-65

Abstract:

Safe disposal of high level radioactive waste is a challenging task facingThis paper introduces the latest progress of high level radioactive waste disposal programs in the world

Keywords： high level radioactive waste geological disposal underground research laboratory key scientific challenges

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Research progress of adsorptive technology in processing wastewater with low concentration of uranium

Gao Junkai,Gu Ping,Zhang Guanghui,Gao Xin,Hou Li´an

Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 73-78

Abstract:

In this paper some characteristics of uranium in aqueous solution and its harmness were briefly introduced. The research progress in recent years on adsorption technologies in treatment wastewater with low concentration of uranium was summarized, and the features of every adsorption technologies were analyzed. The performance and industrial application prospect of these adsorption technologies were remarked, and some opinions about the further study aspects were given.

Keywords： radioactive wastewater uranium adsorption zero-valent Iron

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Environmental process of the deep-water lakes and approach to the protection of water resources on the Yunnan-Guizhou Plateau

Wan Guojiang

Strategic Study of CAE 2009, Volume 11, Issue 5, Pages 60-71

Abstract:

It is of local, regional and global importance to understand the environmental changes on the Yunnan-Guizhou Plateau. Difference on bio-geochemical process of the sediment-water interface exists among lakes so that protection approaches to water resources vary. a. The coal mining in the catchment of Lake Aha causes Fe-Mn accumulation in the sediment leading to the seasonal secondary pollution. In anoxic condition, the sulphate deoxidization migrates to the upper layer of sediments which results in Fe2+ screening of the diffusive boundary layer. The Fe-Mn cycling is controlled by both the sediment-water geological interface and oxidation-reduction chemical interface. Controlling Fe-Mn release and reducing their flux into the lake, selecting good-quality water district and cleaning sludge are efficient ways to control pollutions. b. Paroxysmal deterioration of water quality in Lake Baihua appeared in autumn, 1994 in Guizhou. Analysis of incident cross-correlation water-quality indicators indicated that the "Lake Black Tide" resulted from the coupling of bio-oxidation of depositional organic matters under the specific season and climatic conditions; pH-restraint of de-nitric process led to increase in NO-2 concentration. The water quality was expected to recover in times with the balancing of oxygen in waters, input of water flow and better weather conditions. This was confirmed by the late monitoring. c. The average sedimentation rate of Lake Erhai is 0.047 g ·cm^-2 ·a^-1. The Pb-isotopic compositions of recent sediments indicate that may have a stable source. The depositional organic matter originates mainly from the land. In the chemical processes of early diagenesis, the Corg vertical profiles of sediments show three stages "Deposition-Decomposition-Accumulation" . In the last 460 years, small-scope frequent fluctuation of δ¹³C_org and synchronically decreasing trends of δ¹³C_inorg and δ¹⁸O_inorg indicate an obvious influence of human activity in the catchment. Control of input flux of terrestrial organic matters into Lake Erhai is a fundamental strategy. d. Lake Chenghai in Yunnan is a moderate-eutrophic lake with a total ion concentration close to a low limit of saline lake. The atomic ratios of H_org/C_org and C_org/N_org indicate that the organic matters mainly stem from the endogenous plankton algae remains; there is a good synchronous relationship of the depositional fluxes between 210Pbex and Corg in the sedimentary records. In particular, the synchronizations over the time indicate the increase in the lake primary productivity. The Clean-Effect reflects an adjustive role of lake nature function in the lake eutrophication.