以硅胶为基质的交联壳聚糖对Ni2+的吸附研究

以硅胶为基质的交联壳聚糖作为重金属Ni^2 的吸附剂,对影响该吸附Ni^2 的因素及吸附剂的再生和其吸附能力的变化,吸附机理等进行了研究。结果显示,吸附剂在一定的实验条件下对Ni^2 的最高吸附量按每克壳聚糖计可达650mg/g,且吸附平衡时间短。在柱法实验中其吸附率在99．9％以上。     

核心期刊确认及其应有中的问题

核心期刊的确认工作有着重要的理论和现实意义,本文从核心期刊的作用、国内外核心期刊鉴定工作现状、筛选核心期刊的理论方法等三方面进行了综述,分析了其确认和应用中存在的问题,并提出相应的建议。     

Carbon Budget for Basic Needs:Implications of International Equity and Sustainability

The fundamental way of satisfying the basic needs of human development is to secure the basic needs,limit luxurious and wasteful emissions,and ensure the fulfillment of climate targets,so as to achieve intra-and intergenerational equity.In this paper,the author discusses and analyzes a series of challenges that the development has to face,such as poverty elimination,urbanization,and industrialization,and the problems of increased consumption that is brought about by the improvement of living standards;the author distinguishes the stock emission,which does not need annual updating,and the flow emission of regular consumption;the author also defines the standards of energy consumption and carbon emissions that can meet the basic needs.On this basis,the author proposes the concept and method of carbon budget,compares this method with other means,and in particular,studies and analyzes the implications of international equity and sustainability of carbon budget as part of the international climate regime design.     

在役压力容器安全操作思路探讨

压力容器是一种广泛使用的特殊设备，一旦使用不当或容器缺陷未及时处理，就有可能发生爆炸和介质泄漏事故。这些事故不仅危害操作人员安全，而且危及周围环境，发生易燃易爆介质的二次爆炸。合理有效地控制运行参数，是预防压力容器事故的重要途径。     

空心玻璃微球附载TiO2清除水面漂浮的油层

 以空心玻璃微球为载体，采用浸涂法制备出TiO₂/beads光催化剂．研究了利用TiO₂/beads光催化剂降解水面漂浮的正十二烷及甲苯的可行性．结果表明，375W中压汞灯照射120min，正十二烷的光催化去除率达93.5％，光照80min时甲苯被完全光催化去除；通入空气有利于正二十烷及甲苯的光催化去除，外加微量的H₂O₂（5.0mmol/L）可大大提高光催化去除率，向反应液中加入少量Na⁺对正十二烷及甲苯的光催化去除率无明显的影响．     

Secondary effect of SO_2 pollution: enhanced growth of the army worm, Mythimna separata (Walker)

Effects of SO2 pollution on growth of the army worm, Mythimna separata, were investigated by rearing the larvae for 12 days on the wheat plants being exposed to SO2 levels ranged from 50 to 200 ppb in the field open-top fumigation devices. Larval period shortened while their mean relative growth rate (MRGR) increased as SO2 dose elevated. Similar experiment with the insect on the artificial diet excluded the possibility that SO2 pollution directly stimulated growth of the army worm.The patterns of change in amino acid hydrolysates in the host foliage suggested that contents of methionine, and perhaps, arginine in food material exposed to unpolluted air were at such levels that they could only support sub-optimum growth of the insect, and SO2 pollution increased concentrations of these limiting amino acids, resulting in better performance of the larvae.     

无机稳定剂处理重金属污染土壤

以重金属污染土壤为研究对象,比较了铁屑、蒙脱石、碳酸钙和羟基磷灰石4种稳定剂对土壤中Pb,Zn,Cd,Cu 4种重金属的稳定效果。实验结果表明,4种稳定剂稳定效率的大小顺序为：羟基磷灰石﹥碳酸钙﹥蒙脱石﹥铁屑。当稳定剂质量分数为10%时,羟基磷灰石、碳酸钙、蒙脱石和铁屑对Pb,Zn,Cd,Cu 4种重金属的平均稳定效率分别为99.63%,98.53%,97.15%,86.95 %。未加稳定剂时,土壤中的Pb以残渣态为主,Zn以残渣态和可交换态为主,Cd以残渣态为主,Cu以残渣态和可交换态为主;加入稳定剂后,土壤中4种金属可交换态的所占比例（简称占比）均显著降低,还原态的占比明显增大,残渣态的占比略有增大,氧化态的占比基本保持不变。     

微生物絮凝剂的现状与前景分析

综述了传统絮凝剂在水处理中存在的缺陷以及微生物絮凝剂在水处理中的优越性，对微生物絮凝剂可能在将来取代或部分取代传统的无机及有机高分子絮凝剂作了科学的分析，并针对现今微生物絮凝剂发展的不足指出了今后的发展趋势。     

污水土地处理磷迁移转化模拟模型与检验

以“污水土地处理条件下磷的迁移转化模拟试验”为基础，根据磷在土壤中的迁移转化机理，提出了定量模拟离在土壤中迁移转化的联合模型。联合模型包括水运动模型和溶质运动模型两部分，综合考虑离在土壤中迁移、转化和沉淀等过程。在传统的溶质运动模型基础上添加化学转化项形成了具有磷的反应特点的溶质运动模型。通过实测值与计算位的比较，验证了联合模型的合理性和可适用性。     

接种稀释水的空白对BOD_5测定的影响

从接种液种类、空白 BOD5大小、接种液最佳添加范围等方面对 BOD5测定进行探讨 ,提出以接纳工业废水的河水作为最佳接种液 ,雨季时以土壤浸取液更适合。探讨了接种液空白值对 BOD5标液和工业废水的影响。结果表明 ,河水空白应控制在 0 .1～0 .8mg/ L,土壤浸取液空白控制在 0 .0 1～ 0 .1 0 mg/ L为宜。