影响高浓度NH3-N废水吹脱-硝化过程的实验研究

废水中含氨氮过多，对人和动物的健康产生极大威胁，此外，水体中NH3-N浓度过高，也增加了废水生化的处理难度，为此，废水脱氮成为水处理领域的热点和难点。文章采取先用空气将高浓度NH3-N废水的中的一部分NH3-N吹脱，然后在适宜的氨氮剩余浓度下，采用活性污泥法对剩余NH3-N进行硝化处理。用空气吹脱NH3-N，碱度直接影响吹脱效果和最终的剩余氨氮浓度。在硝化反应时，pH值、温度、溶解氧对硝化反应影响十分大。文章通过大量实验，获得了NH3-N废水起始浓度为1000mg／L左右时的最佳吹脱碱度，获得了适宜的氨氮剩余浓度。同时得出了pH值、温度、溶解氧对硝化反应的影响规律。这些数据和规律对生产有一定的指导意义。     

合金镀铁修复深孔类零件工艺及应用

阐述了对各种深孔类零件内表面磨损以后进行槽外流镀的方法 ,克服了大件及无法绝缘件的镀铁困难问题 ,并确定了最佳工艺过程     

论在我国高等教育中实施环境教育

综述了环境教育的由来和意义,分析了我国高等教育中开展环境教育现状,提出了目前在高等教育中实施环境教育的重点。     

实施清洁生产审计巩固企业贯标成果

贯标工作依赖于切实的环境管理方案，而企业通过一整套清洁生产审计程序，结合生产装置的增量降耗，优化生产过程的APC控制等技术改造措施的实施，将无费，低费方案与高费方案有机地结合，使企业真正走出一条产量增加单耗能耗降低，效益递增排污量减少的可持续发展之路。     

二段净化渣综合利用

通过对二段净化渣浸出锌的试验研究，探索出了二段净化渣处理的最佳工艺技术控制条件，在生产实际中效果良好     

铜酞菁类直接染料的无盐工艺

对C．I．直接蓝86和C．I．直接蓝199两种染料生产工艺进行了改进，86号直接蓝的生产用两次沉降取代了两次盐析。在199号直接蓝的氯磺酰化反应中，铜酞菁与氯磺酸的质量比由原来的1：8．67降至1：6．00，氨解后的浆料不经盐析直接进行真空干燥，工业废水中既不含盐，废酸浓度池低，无盐工艺的采用使污水的治理得到了简化。     

灰色关联分析在地下采空区危险度评价中的应用

首先介绍了灰色关联分析的基本思想和分析步骤，在找出影响采空区危险度的主要因素之后，确定各因素指标的权重，用灰色关联分析方法求出因素的关联度。最后通过实例分析，说明了该方法在评价采空区危险度中的科学性和有效性。     

Understanding conflicting cultural models of outdoor cats to overcome conservation impasse

Many conservation conflicts are scientifically complex yet are rooted in value conflicts, which result in an impasse. Additional biological information alone is insufficient to resolve this type of conflict. Conceptual models that articulate the material aspects of a system are increasingly used to identify areas where parties disagree. Yet, modeling processes typically follow the conveners’ rules for discussing and assessing the topic, which can exacerbate conflict. Researchers have identified a need for processes that require participants to reflect on the limits of their own philosophical assumptions and acknowledge other perspectives. Cultural models are a promising tool for this purpose because they include nonmaterial beliefs, morals, and values that guide people's understanding of how to interact with an issue, sometimes subconsciously. We explored how cultural models used with conceptual models can improve understanding of value conflicts and used outdoor cat management as a case study. We conducted interviews and focus group discussions with wildlife conservation and cat welfare professionals involved in outdoor cat policy discussions in Hawaii and Washington, D.C. From these conversations, we developed a conceptual model of the outdoor cat management system and cultural models that led stakeholders to weigh elements of the conceptual model differently. Although wildlife conservation professionals generally spoke about outdoor cats as invasive species, cat welfare professionals spoke about them as homeless pets. These conflicting conceptualizations of what an outdoor cat is may help explain the root of many long-standing disagreements. Examining how and when stakeholders invoke different cultural models allowed us to identify management actions that work with, rather than challenge, those models. Dialogue that embraces conflicting cultural models can be difficult and uncomfortable, but has great potential to overcome conservation impasse and achieve lasting conservation results.     

水催化泔水油生产甘油硬脂酸的清洁生产工艺

探讨了泔水油水解工艺,从酸析、水洗、压力、温度、水解等条件进行研究。本工艺直接用水作催化剂,适应成分复杂的餐饮泔水油,污水处理简单。采用的工艺条件是:压力,3.5 MPa;加水量,35%左右。同时需要指出的是,加水量一般是根据中性油的含量来计算,因为游离脂肪酸不需水解。     

某矿斜井跑车伤害事故分析及对策

利用事故树对某矿斜井运输中的跑车伤害事故进行了分析,并提出了相应的隐患整改措施和标准化作业程序。