浅谈目前电镀废水处理的几种方法

电镀废水中含有大量有害物质,会对生态环境及人类产生严重伤害,因此,电镀废水的治理是一个亟待解决的问题。文章探讨了电镀废水的主要处理方法,介绍了电镀废水的处理工艺等。     

试论电镀废水处理工艺

电镀行业是高污染行业,电镀废水中含有大量有害物质及有价值金属,如处理不当,排入自然环境中既污染环境,又浪费资源。本文介绍了电镀废水的特点,阐述了电镀废水的处理工艺,并详细分析了处理效果,取得了较好的经济效益和环境效益。     

水合物处理电镀废水中氯离子的方法研究

本文用一氟二氯乙烷(HCFC-141b)形成水合物R141b,研究水合物形成过程中诱导时间、溶液电导性的变化。在加入十二烷基硫酸钠(SDS)和搅拌作用下,可缩短水合物生成的诱导时间;监测了模拟电镀废水中氯离子在生成R141b水合物前后浓度的变化。实验结果表明:R141b水合物可将电镀废水中氯离子浓缩,并提取一部分回水,对回收电镀废液中的氯离子处理起到一定作用。     

自行车厂电镀废水的处理

以某自行车厂生产过程中产生的电镀废水为处理对象,对含氰、铬、镍和酸碱废水进行分类收集,分而治之.经处理后出水的各项指标均能达到国家《污水综合排放标准》(GB8978-96)一级标准,电镀废水的主要污染物均得到高效去除,效果较好.     

电镀清洗废水资源化利用技术

分析电镀清洗废水的来源与危害,讨论电镀清洗废水的处理方法。从反思的角度提出新的电镀清洗废水节能减排与资源化利用的处理工艺,提出了对电镀清洗废水处理方法的发展趋势及资源化利用的展望。     

膜分离技术处理电镀废水的应用及其发展前景

电镀废水可以经过处理之后实现循环利用,文章对膜分离技术的相关概念进行阐述,并且对近期国内外的膜分离技术发展现状进行叙述,介绍了膜分离技术在电镀废水中的具体应用,旨在为电镀废水的处理提供理论依据。     

电镀污泥中重金属的回收与固化处理

随着我国经济的发展,我国在工业电镀方面也取得了很大的进步。在电镀过程中会产生属于危险废弃物的电镀污泥,其中,含有较为活泼的重金属,一旦这些重金属进入水体环境,就会对环境造成污染,从而可能对人类的健康造成威胁。但是对于电镀污泥而言,其中的重金属具有回收利用价值,为此,就需要对电镀污泥进行适当的处理,使得资源既不被浪费,而且能保证人民群众的生命健康安全。目前来看,国内大部分电镀企业并没有采取适当的处理,大部分情况下都造成了资源的浪费,甚至有环境污染的可能性。文章就电镀污泥在环境、资源等方面进行了阐述,旨在提高各企业对于合理回收利用电镀污泥重要性的认知。     

含高氟废水处理方法的研究

<正>1前言随着现代化工业的发展,含氟矿物的开采加工、氟化物的合成、金属冶炼、铝电解、焦碳、玻璃、电镀、化肥、农药、化工,特别是近十多年来,蓬勃发展的电子工业(如彩色显像管、集成电路工厂等)的大量建设投产,含氟废水的排放总量每年以成万吨计急剧增加,氟污染越来越严重,其危害越来越受到人们的关注。虽然国内外对含     

浅析电镀废水处理方法

电镀废水是当今三大污染行业之一,如何做到有效处理,达到安全排放一直是个难题。文章结合多年工作实践及经验总结,主要从电镀废水的来源和水质,重金属的处理方法,含氰废水除氰方法等方面进行了分析。     

浅析电镀废水处理方法

电镀废水是当今三大污染行业之一，如何做到有效处理，达到安全排放一直是个难题。文章结合多年工作实践及经验总结，主要从电镀废水的来源和水质，重金属的处理方法，舍氰废水除氰方法等方面进行了分析。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.