热电厂废酸、废碱水的综合治理及回收利用

通过人工控制阴、阳离子交换器同时再生 ,同时排放废酸、废碱水。废水再经过两组混水器 ,实现自身的中和反应 ;部分废水通过添加絮凝剂处理后 ,其水质与自来水水质类似 ,再作为进入离子交换器的一部分来水使用     

Substance Abuse in Lesbian,Gay, Bisexual,and Transgender Communities

Abstract

This article calls attention to the lack of knowledge concerning alcohol and other drug (AOD) use in lesbian, gay, bisexual, and transgender populations. Twenty-five Internet Web sites related to the LGBT substance use are reviewed.     

浅述微型化学实验与学生素质教育

本文浅述了微型化学实验首次文献报导后十五年来发展概况及其开展微型化学实验与实施素质教育的关系．     

宁夏煤化工产业发展研究

延伸资源型产业链条，是资源富集地区实现资源优势向经济优势转化的重要途径。通过客观分析宁夏发展煤化工产业的优势与劣势，充分认识所面临的机遇与挑战；从后发优势、项目规模、循环经济、金融支持、人才培养等诸方面，提出了发展宁夏煤化工产业的战略对策。     

基于环境承载力的广西北部湾经济区重化产业布局研究

由于广西北部湾经济区的地理优势和自然资源优势,重化产业已成为该区发展的支柱力量。但是重化产业通常都伴随着高污染、高能耗,因此在广西北部湾经济区发展重化产业一定要合理布局,充分考虑环境的承载能力,以实现经济的可持续发展。     

简易化学法鉴定无机盐的实验开发

在中学生物教材中，如何证明组织中有无机离子的存在，还没有实验方法的介绍，作者通过研究，摸索出适合中学教学的鉴定组织中无机离子的简易化学方法．实验结果表明：组织细胞中的钙、镁、铁、锌、钾、锰、铜通过专一性的试剂可以产生特殊的颜色反应来证明其存在．     

石油化工建设施工质量控制新视角研究

任何一个优质的建设工程,都是实施严格且先进的质量管理的结果。过程控制是施工过程中质量管理的重要组成部分,因此,切实抓好过程质量控制是创造优良工程的关键。本文从新视角探讨了如何有效地进行施工过程的质量控制。     

Chemical Sensitivity in the Workplace

Abstract

The debate continues to rage in the medical community and amongst policy makers. This debate centers on a new disease mechanism commonly known as Multiple Chemical Sensitivity (MCS). Magill and Suruda (1998) grouped the theories of etiology of MCS into four broad categories: physical, stress, misdiagnosis, and illness belief. A new name for this illness has recently been advanced as well, toxin-induced loss of tolerance (TILT). Problems with chemical sensitivity are especially troubling for workers and their employers. Employees seeking relief under the Americans With Disabilities Act of 1990 (ADA) are requesting accommodations based on their reactions to chemicals. Employers are beset with claims for accommodations in the workplace, disability claims, and worker's compensation claims. Courts are trying to make sense of chemical sensitivity with respect to accommodations in the workplace. Court decisions regarding MCS issues are varied and oftentimes highly controversial. Primary social problems and mental health issues associated with chemical sensitivities are economic costs and loss of enjoyment of life by MCS sufferers. Economic costs are spread throughout the system; however, their major manifestations are lost worker production, increased demands on services, and the long-term costs associated with supporting a growing disabled subset of the population comprised of chemically injured workers. Social and mental health costs are seen in escalating cases of depression, divorces, behavioral acting out, isolation, anxiety attacks, and chronic medical problems.

Social workers are particularly well suited to advocate for accommodations in the workplace and for social policy change on behalf of those suffering from chemical sensitivity. Their training in systems and ecosystems theory makes them well aware of the importance of the environment on the individual. That training includes knowledge of utilizing strengths based approach to problem solving, and clinical training in mental health, which leads to empowerment for the client.     

掺合料对混凝土体积稳定性的影响

以实际铁路大桥工程为背景,以解决大体积混凝土开裂问题为目的,通过试验分析了矿粉、粉煤灰对水泥化学收缩和干燥收缩的影响,结果显示：内掺50%的矿粉能够大幅度降低早期塑性阶段的化学收缩,对减少后期的化学收缩也有一定作用,矿粉与粉煤灰复合后对降低7 d以内的化学收缩都有显著作用,粉煤灰比例越高,作用越明显;单掺加矿粉会增加干燥收缩值,而采用矿粉与粉煤灰复掺的方法则能够有效提高体积稳定性。根据掺合料对混凝土强度影响的试验分析,并结合工程要求和化学收缩、干燥收缩试验结果与分析,提出了优化大桥原设计混凝土配合比的方案,经过实际施工检验,有效避免了大体积混凝土开裂的出现。     

有毒微量元素砷的毒性研究

本文研究了有毒微量元素砷的毒性与其化学形态及摄入量之间的关系。指出了不是所有砷的化合物都是剧毒的,砷的毒性因其价态、化合态、化合物的溶解度及其存在器官、在体内的浓度、排泄速度等的不同而存在较大差异。