科学焚烧垃圾系统的技术特点

科学焚烧处理垃圾法具有占地少,场地易选择,时间短,减量化显著,无害化彻底以及回收余热供发电供热等优点.其处理设备和控制系统是保证科学焚烧处理垃圾成功,并带来巨大经济效益的关键.鉴于此,文章对科学焚烧垃圾系统设计作了比较详细的介绍.     

中、美流域水资源管理机制比较

萨斯奎哈纳流域管理委员会的委员由美国联邦政府和其流域内纽约、宾夕法尼亚、马里兰三个州的代表组成。在《萨斯奎哈纳流域协议》（联邦法律）的授权下。该委员会有权处理流域内的任何水资源问题。相比之下．国内的流域机构没有流域内省（自治区、直辖市）的代表作为委员，流域水行政管理的职能还不能满足流域内社会经济发展的实际需要。因此，形成和完善以流域为单元的水资源管理法律框架是有效保护、开发和管理流域水资源的基础，建立包括流域内省（自治区、直辖市）为代表的流域管理委员会可以提供一个有代表性、长效的管理机构。流域管理委员会应着重加强流域水资源保护、开发和管理的综合规划，注重流域的公共利益和社会服务．重视水质、湿地、洄游鱼类、珍稀物种和文化遗产保护．切实担当起河流代言人和保护神的角色。     

Applying real options in investment decisions relating to environmental pollution

This study focuses on how to assess the optimal environmental investment decisions under economic and ecological uncertainty, and establishes the continuous time model using the real option approach to optimize environmental pollution policy. Unlike traditional cost benefit analysis, this work extends the model of [Pindyck, R.S., 2002. Optimal timing problems in environmental economics. Journal of Economic Dynamics and Control 26(9–10), 1677–1697], and attempts to identify the storage threshold of pollution stocks and the optimal timing for implementing environmental pollution decisions.     

Kinetic Study on Absorption of SO2 and NOX with Acidic NaClO2 Solutions Using the Spraying Column

The operating conditions of this study are close to the typical operating conditions of flue gas desulfurization system in coal-fired power plants. The aim of this study is to investigate the absorption kinetics of SO2 and NO from simulated flue gas into an aqueous solution of acidic sodium chlorite using a bench-scale spraying column. The range of absorption rates measured in this study is between 1.91×10?11 and 9.59×10?10?mol?s?1?cm?2. The range of rate constants measured in this study is between 1.32×107 and 1.21×108?(L?mol?1)1.9?s?1, and the average rate constant is 6.16×107?(L?mol?1)1.9?s?1. The activation energy and frequency factor are 129 Kcal/mol (53.97 KJ/mol) and 6.93×1016?[(L/mol)1.9/s], respectively.     

EXPERIMENTAL INVESTIGATIONS ON LONGITUDINAL DISPERSION CHARACTERISTICS OF TIDAL RIVERS

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我国突发性水资源污染事故应急机制的若干问题评述

基于突发性水资源污染事故应急处理现状的分析,对目前我国突发性水资源污染事故防范和应急机制的建立进行探讨,指出当前工作中的三大缺陷,并有针对性地提出如何加快防范突发性水资源污染事故以及建立相关应急机制的进程的若干措施,包括突发污染事故的隐患调查、脆弱性评价、水质预报、动态监测以及应急组织机构等方面,以期能为我国减少突发性水资源污染事故及其损失提供一定的理论分析依据。     

无磷洗涤剂的现状及存在问题

含磷洗涤剂中含的“磷”主要是STPP，作用很大但对环境的危害也很大，它是造成地表水体出现富营养化的重要原因之一，所以许多地方政府都在实行“禁磷”——禁止销售、使用含磷洗涤剂。现在我国使用的无磷洗涤剂中代磷助剂主要有3种，其中4A沸石用量最大，但它会对环境带来新的问题。主要介绍了含磷洗涤剂的危害及无磷洗涤剂的应用现状，指出了我国禁磷后将面临的问题。     

高层天台移动通信天线电磁辐射影响水平探讨

移动通信基站在高层建筑天台架设的定向天线，对周围环境的电磁辐射影响水平的监测进行分析，探讨高层建筑天台电磁辐射环境的污染防治对策。     

对选矿废水综合利用的探讨

通过对金堆城钼业公司选矿废水再用于选矿作业的选矿试验，证明选矿废水循环利用是可行的，既提高了选矿浓度，又减少了对环境的污染，经济和社会效益显著。     

Structure of interstitial assemblages in a regulated channel of the river rhine (France)

The interstitial assemblages of the River Rhine were studied in the Rhinau sector (France). The studied area is located in aVegulated channel of the river, controlled by a hydroelectric dam. Twenty stations were sampled in September 1988. Ten litres of interstitial water were pumped at 50 cm depth in each station using the Bou-Rouch technique. Interstitial waters were poorly oxygenated and the hyporheic fauna had three major characteristics: (1) microcrustaceans were dominant, (2) the insects were rare and (3) the stygofauna was absent. The richest stations were well oxygenated and did not correspond to any particular geomorphological features. These findings contrast with the situation observed on other large European rivers (Rhǒne, Danube) where the interstitial assemblages appear to be locally more diversified and rich in stygofauna.