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11.
Xia Shenglan Wang Jie Chen Zanming Lan Hai Shen Zhenguo Shi Liang Chen Yahua 《Environmental science and pollution research international》2022,29(12):17150-17161
Environmental Science and Pollution Research - Cadmium (Cd) in agricultural soils can be absorbed by wheat and transferred into the grains, risking human health. In order to find the optimal foliar... 相似文献
12.
Sun Min Yao Risheng You Yahua Deng Shengsong Gao Wenxia 《Frontiers of Environmental Science & Engineering in China》2007,1(1):95-98
This paper reports on the degradation of 4-aminophenol using hydrogen peroxide as oxidizer and the enzyme from Serratia marcescens AB 90027 as catalyst. The effecting factors during degradation and the degrading mechanism were studied. Also, the location
of the enzyme in the cell, which could catalyze the degradation of 4-aminophenol, was analyzed. The results showed that to
degrade 50 mL of 4-aminophenol whose concentration was 500 mg/L, the optimal conditions were: volume of H2O2 = 3 mL, temperature = 40–60°C and pH = 9–10. In the degradation process, 4-aminophenol was first converted to benzoquinone
and NH3, then organic acids including maleic acid, fumaleic acid, and oxalic acid were formed, and then finally CO2 and H2O were generated as final products. The enzyme that could catalyze the degradation of 4-aminophenol was mainly extracellular
enzyme.
Translated from Environmental Chemistry, 2006, 25(2): 141–144 [译自: 环境化学] 相似文献
13.
Yahua Wang 《Frontiers of Environmental Science & Engineering》2007,1(4):401-417
Large-scale water environmental deterioration is one of the most prominent environmental issues in current China. Transjurisdictional water pollution is an important reason for water environmental deterioration of river basins, and currently there are some major defects that exist in China's management system related to transjurisdictional water pollution. With seven major river basins in China as an object of study, this paper is designed to perform a diagnosis of major problems about the transjurisdictional water pollution management in China from three aspects, i.e. institution, mechanism, and legislation. On the basis of this, it gives an overall train of thoughts on the reform of transjurisdictional water pollution management in China, and proposes specific recommendations from the aforesaid three aspects. 相似文献
14.
滨河核电厂液态流出物排放方式的对比分析 总被引:1,自引:0,他引:1
液态流出物排放对环境的影响问题是内陆核电建设过程中重点关注的问题之一。分别应用康奈尔混合区专家系统(CORMIX)的3个主模块(CORMIX1/2/3)实现了对内陆某典型滨河核电厂液态流出物3种排放方式(淹没式单孔、多孔(扩散器)和表面排放方式)下环境影响的对比分析和优化计算。研究结果表明:如果以"相对稀释倍率S=20等值线的包络面积"作为单一的筛选条件,3种排放方式的优先顺序依次为:多孔排放(扩散器)淹没式单孔排放表面排放。该结果可为核电厂流出物排放方式的设计和优化选择提供参考。 相似文献