化工园区定量风险评估方法及其应用

分析了我国化工园区风险特点,介绍了区域定量风险评估方法,以某化工园区为例进行了定量风险评估,通过分析计算,给出了该区域的风险评估结果,项目符合标准的要求,提出了风险控制措施,有助于化工园区装置合理布置和科学规划.     

高压聚乙烯反应单元火灾爆炸危险性分析及预防

运用道化学公司火灾爆炸危险指数评价（第7版）方法,针对管式法高压聚乙烯生产工艺的特点,计算分析安全措施补偿后的火灾爆炸指数,分析总结其火灾危险性,并提出了一些具体的防火防爆措施。     

Changes of public environmental awareness in response to the Taihu blue-green algae bloom incident in China

Environmental problems are becoming increasingly severe in China with industrial discharges and household sewages being the main sources of water pollution in the country. For example, in the case of Taihu Lake, more than half of the total phosphorus in the lake comes from household sewage. While industrial pollution can be treated through technology innovation and controlled by environmental regulations and laws, decreasing household sewage relies entirely on residents. Raising public environmental awareness therefore is essential for ensuring effective environmental improvement and protection. A quantitative assessment of public awareness can inform policy and decision makers; however, not many such studies have been conducted. Changes in the awareness levels in response to a major environmental pollution incident are of particular interest because of the people’s first-hand experience of the triggered consequences. The present paper establishes a system of indicators for the assessment of public environmental awareness. Combined with a fuzzy matter-element analysis method, a model is set-up to quantitatively assess the public environmental awareness. The model is then applied to assess the environmental awareness of the residents of Wuxi City after its major lake Taihu suffered a severe algae bloom in 2007. This study examines whether this serious environmental incident affected people’s environmental awareness and to what degree. The findings show that the matter-element model is capable to resolve well the fuzziness of the ranking affiliation and classification of subjective perceptions, such as public environmental awareness. They show that this environmental incident has had significant positive impacts on the environmental awareness of Wuxi residents. The paper concludes with recommendations related to raising public environmental awareness.     

纳米二硫化钼促进粪肠球菌中信息素诱导质粒介导的耐药基因接合转移

粪肠球菌是一种通常寄居在人和动物胃肠道中的机会致病菌,并广泛存在于环境中。其可通过基因的水平转移获得抗生素抗性。纳米二硫化钼(molybdenum disulfide, MoS_2)是一种新型的二维层状材料,有广泛的应用前景,但缺乏对纳米MoS_2完整的生物安全评价。本研究以粪肠球菌为接合模型,将纳米MoS_2加入接合体系中研究其对信息素诱导质粒pCF10接合转移的影响。研究发现,纳米MoS_2具有促进接合转移的作用,其中25 mg·L^(-1)的纳米MoS_2促进效果最明显,可以将接合频率提高5倍～8倍。因为纳米MoS_2良好的生物相容性对细胞膜通透性、细胞内活性氧水平和接合转移调控基因的表达都没有产生明显影响。纳米MoS_2具有吸附性能,而且又是片层状的结构,这使得其可以附着在细菌表面,促进细菌的聚集,进而促进pCF10质粒接合转移的发生。     

Status and changes of water quality in typical near-city zones of three East African Great Lakes in Tanzania

Environmental Science and Pollution Research - Tanzania is the only country bordering all three transboundary East African Great Lakes, i.e., Lake Victoria, Lake Tanganyika, and Lake Nyasa (Lake...     

Fluorescently visualizing the penetration of anionic surfactants across cytoplasmic membrane and the subsequent damage on human cells

Environmental Science and Pollution Research - The extensive application of chemically synthesized anionic surfactants would cause serious pollution of water and increase health risk to humans....     

Improvement of water resistance by Fe2O3/TiO2 photoelectrocatalysts for formaldehyde removal: experimental and theoretical investigation

Environmental Science and Pollution Research - TiO2-based photocatalysts are a potential technology for removing indoor formaldehyde (CHOH) owing to their strong photooxidation ability. However,...     

Preparing porous Cu/Pd electrode on nickel foam using hydrogen bubbles dynamic template for high-efficiency and high-stability removal of nitrate from water

Environmental Science and Pollution Research - Electrochemical reduction is a promising technology to remove nitrate from water. The metallic composition and geometry of electrodes usually dominate...     

Preparation of Pyridine Polyionic Liquid Porous Microspheres and Their Application in Organic Dye Adsorption

Journal of Polymers and the Environment - Adsorption is a common method to treat organic dye pollution in industrial wastewater. Selective adsorption and reuse can greatly reduce the waste of...     

Effects of Environmental Aging on the Durability of Wood-Flour Filled Recycled PET/PA6 Wood Plastic Composites

Journal of Polymers and the Environment - Outdoor building materials made of wood require preservatives containing chromated copper arsenate and other carcinogenic substances but still are subject...