我国废品回收利用现状分析和建议--以易拉罐回收利用为例

可持续发展日益成为社会发展的主旋律，建设资源节约型、环境友好型社会，对中国发展循环经济，提高废品利用率提出了新的要求。本文介绍了中国目前废品回收方面所采取的模式和面临的挑战，从易拉罐回收利用角度入手，就废品回收利用过程中出现的问题进行了分析，并针对该领域的发展提出了一些建议。     

我国废品回收利用现状分析和建议——以易拉罐回收利用为例

可持续发展日益成为社会发展的主旋律,建设资源节约型、环境友好型社会,对中国发展循环经济,提高废品利用率提出了新的要求。本文介绍了中国目前废品回收方面所采取的模式和面临的挑战,从易拉罐回收利用角度入手,就废品回收利用过程中出现的问题进行了分析,并针对该领域的发展提出了一些建议。     

废旧木材资源的回收利用

本文介绍了我国木材资源的利用现状，强调了当前对废旧木材资源回收利用的紧迫性和重要性。最后以提高木材资源利用率为目标，对我国废旧木材的回收利用途径进行了探讨，提出了几点建议。     

电石渣和碱渣综合处理工艺探索

对PVC附产废电石渣和水合肼附产碱渣的综合利用工艺进行了探讨。电石渣和碱渣在特定的条件下，反应生成可回收利用的工业产品——烧碱和碳酸钙粉，烧碱浓缩后回用于水合肼装置生产次氯酸钠；碳酸钙粉送电厂作脱硫剂，经济及环保效益俱佳。     

水合肼合成技术与市场分析

水合肼是一种重要的无机化工中间体,本文综述了水合肼主要生产工艺技术进展,并对生产方法进行比较、分析.同时介绍了水合肼生产现状、市场需求与发展预测,对我国水合肼工业发展提出一些建议.     

废旧轮胎回收利用新进展

介绍了目前国内外处理废旧轮胎的主要方法及途径,重点论述了废旧轮胎翻新、热解、制造胶粉的应用情况和研究进展,分析了各种方法的优缺点,指出废旧轮胎翻新和制造胶粉是能大批量处理废旧轮胎并具有良好发展前景的处理方法。同时提出了废旧轮胎回收利用中应注意的问题及其发展前景,而且对废旧轮胎进行合理的回收利用,不仅可节约资源创造良好的经济效益,对创建良好的环境也会产生深远的影响。     

对吗啉残液处理方法的研究

本文介绍了吗啉残液处理的现状及对新方法的研究。     

The influence of socio‐economic status on salt consumption in Northern Ireland

The long‐established association between high salt consumption and hypertension has led to calls for a reduction in salt intake. There is particular concern for the health status of Northern Irish consumers, who already have among the highest rates of coronary heart disease and stroke in the United Kingdom. With these concerns in mind, it is essential to establish the sources and patterns of salt consumption from discretionary and processed food sources before a reduction can be achieved. This study investigated differences in salt consumption patterns among consumers of varying socio‐economic status. Research consisted of a consumer questionnaire (n = 360) distributed within Northern Ireland. The results of the study revealed high discretionary salt usage and frequent consumption of processed foods among consumers of lower socio‐economic status. General observations from the questionnaire would suggest a need for improved health education for consumers in this group. The objective of health promotion should be to encourage a reduction in table and cooking salt usage and, in particular, in the consumption of highly salted processed foods. Enhanced product labelling is also encouraged to increase consumer awareness of current salt levels in food and of the availability of low‐salt foods. In addition, the results of this study advocate further development activity in the production of product formulations with low‐salt status.     

Fending off waste from the west: The impact of China's Operation Green Fence on the international waste trade

China launched the first Operation Green Fence (OGF) on 1 February 2013 to fend off inflows of illegal waste. The main objective of OGF was to enforce waste trade policies already adopted by China and thereby restrict illegal waste imports. We use a gravity model of international trade with annual bilateral waste trade data at the 6-digit HS code level to assess the impact of OGF on the international waste trade. First, we study the direct impact of OGF and find that the intervention resulted in a 26% drop in low-quality waste exports to China from developed countries. Second, we assess the impact of OGF on exports from developed countries to developing countries, excluding China. We do not find a statistically significant effect of OGF on low-quality waste exports from developed countries to developing countries (excluding China). We also test the waste haven hypothesis and do not find evidence that waste exports were disproportionately diverted to countries with lax environmental regulation.     

废旧塑料的再生利用

根据车用塑料存在的问题,本文详细介绍了废旧塑料的处理和再生利用技术;并指出了废弃塑料再生利用的市场前景及环境保护的和谐发展。     

废橡胶热解技术研究进展

综述了国内外废橡胶的热解技术,并根据锁定目标物质的不同和热解时反应压力的不同,分别介绍了废橡胶热解制备燃料油技术、制备炭黑技术、制备燃料气技术以及高压热解、常压热解和真空热解技术.此外,还介绍了废橡胶超临界裂解工艺.     

工业废气二氧化碳的回收利用

工业窑炉源源不断地排放CO2气体,既污染了环境,又浪费了资源.本文提出了低分压变压吸附回收工业废气中CO2的新方法,并对其工艺进行了介绍.     

The interactive effect of numerical precision and message framing in increasing consumer awareness of food waste issues

Food waste has become a pressing problem in the world, leading to a range of economic, social, and environmental issues. As a result, there are increasing calls to develop effective messages that can increase consumer awareness of food waste and its negative impacts. Drawing upon a recent research on the influences of numerical precision on consumer decision making, the present research tests the ‘match-up’ effects between numerical precision and message framing on consumer awareness of food waste issues. Two experimental studies (N_total = 799) show that more (vs. less) precise numerical information can increase consumer awareness of food waste issues when combined with a loss message framing, whereas less (vs. more) precise numerical information is more effective when combined with a gain message framing. This research also examines the role of time availability as a boundary condition, such that when perceptions of time availability is heightened or reduced, the predicted effects are attenuated. Theoretical and managerial implications are discussed.