棕水变绿水——广州市东濠涌水环境及景观改造综合整治工程研究

古时广州是一座“河道如巷、水系成网”的水城,丰富的水资源使广州形成独具特色的城市水文化。在众多的河涌当中,东濠涌是广州仅存的古城护城河,至今已有六百多年历史。近代由于城市的发展,东濠涌由原来防洪排涝和水运为主的功能变成了以纳污为主,导致水环境污染日益严重。近几年,广州政府投入巨资治理东濠涌。该研究从水环境整治工程、生态河岸及景观整治工程两方面归纳东濠涌综合整治工程的思路与特．羔,表达了东濠涌综合整治工程对于改善城市生态环境所产生的积极影响,     

活性炭预处理在软化水站的应用

以山东铝业公司软化水站为例,介绍了当地城市给水处理厂引入黄河水后,软化水站出现的问题、原因以及采取活性炭过滤措施的效果,说明利用活性炭进一步处理该类自来水是解决此类问题的有效方法。最后提出了几点建议。     

大区域视角下的皖江城市带发展趋势和规划思考

皖江城市带是我国区域经济的重要组成部分,其发展机制和空间范畴经历了不断完善的过程。随着2010年国务院批复《皖江城市带承接产业转移示范区规划》,皖江地区进入到了历史发展的黄金时期。通过对皖江城市带发展历史脉络的梳理,对大区域发展环境和发展方向的认识,提出了"大区域视角下皖江城市带的产业方向"和"聚焦沿江带,明确城市群,做强中心市"的空间发展战略。皖江城市带作为中国第一个以承接产业转移为目的的示范区,谋划其发展必须站在更广阔的区域,辅以更长远的视角。主动响应生产空间和消费空间的"大产业转移",积极推进工业化和城镇化的双轮驱动,这应是皖江城市带新崛起的核心战略。最后对皖江地区的生产空间(工业化)、消费空间(休闲服务)和生活空间(城镇化)组织提出了建议。     

黄浦江上游水源地的水环境特征及保护对策

黄浦江上游江段是上海市最大的供水水源地，确保其水量和水质对于保障上海市的饮用水安全有着十分重要的意义。为此，重点分析了黄浦江上游可利用水资源的组成和近十年来的水质变化趋势，以及上游主要水功能区的水质现状和入河排污量，并提出了水环境治理、引清调水、水功能区管理、保护规划、信息预警等水源地保护对策。     

西龙河水源地岩溶地下水开采量评价

西龙河水源地位于邹城市西南一相对独立水文地质单元内。区内已建有多个水源地,目前处于一种供稍大于求的弱平衡状态。为了合理、安全地利用西龙河水源地岩溶地下水资源,在深入分析勘察区及周边水文地质条件基础上,分别设置新增开采量为3.50×104m3/d、3.10×104m3/d和2.80×104m3/d三个不同的开采方案,采用GWMS软件包之AQUA3D地下水流数值模拟模型软件,对该水源地岩溶水资源进行了数值模拟。模拟结果表明,考虑了实际存在的＂井损＂因素后,新增开采量2.80×104m3/d,其平水年抽水井最低水位标高为15.10m,较允许最低水位高3.1m,枯水年抽水井最低水位标高为12.20m,较允许最低水位高0.2m;平、枯水年因岩溶水开采而引起孔隙水水位下降分别为0.56m和1.86m,满足规定的开采约束条件,对当地农业生产与生态环境影响较小,是所设定的三个开采方案中最合理的一个。     

城市河谷景观规划设计探析——以拉萨河河谷景观设计为例

城市河谷景观包括谷底与谷坡景观.城市河谷景观设计应通过对不同河谷景观主要构成要素、设计对象的详细分析,结合城市安全、自然野趣,生态和谐,视觉愉悦,利于亲水,文化底蕴等6个方面进行具体设计.拉萨河河谷城区段景观设计通过深入分析不同季节的水位状况,对河谷断面进行选择性干扰,采用水景观改善、湿地景观改善、高滩绿地改善、沙地景...     

制度变迁视角下的江南古镇保护——以江南六镇为例

借鉴新制度经济学和新经济史学的分析方法,从制度变迁的角度探究转型期条件下中国古镇保护发展演变的内在逻辑。在对江南水乡古镇保护三个主要历史发展阶段进行回顾分析,指出古镇区是一种具有特殊历史文化属性的稀缺性土地资源,在转型期条件下它基本处于基层地方政府的掌控之中,而具有一定利益独立性的地方政府之所以选择古镇保护,是因为保护活动在特定的历史条件下成为一项净收益（率）最高的投资活动。就本质而言,转型期中国古镇保护的发展历程也就是地方政府随着外部社会经济条件的变化;借助古镇区资源不断追逐自身利益最大化的过程。     

南水北调东线洪泽湖抬高蓄水位工程效益分析

南水北调东线工程为国家大型调水工程,可有效解决黄淮海平原和山东半岛的缺水问题,可更有效地利用淮河水资源,拟将洪泽湖蓄水位由现在的13.0m抬高至13.5m,增加洪泽湖的蓄水量,减少抽江水量,但抬高蓄水不可避免地会带来负面影响,本文分析了洪泽湖抬高蓄水位的影响和效益,从经济上分析论证抬高蓄水位是可行的.     

Investigation of River Flow Failure at Sleaford

The River Slea through Sleaford is fed by groundwater emanating from the Lincolnshire Limestone. In recent years, the springs have dried up periodically, causing failure of river flow through the town. The Slea is a main feature of the town and, when flowing, a valuable visual amenity. Conversely, when it is not flowing, progressive water quality deterioration in ponded sections reduces the river corridor to an eyesore. The paper describes investigations into the cause of the problem and how to overcome it.     

Water shortage in GCC countries: transferring water from Iraqi Kurdistan Region

ABSTRACT

The Gulf Cooperation Council (GCC) countries lack renewable freshwater resources, yet demand for water is rising fast. The groundwater as the largest freshwater supplier has significantly dwindled and its quality has degraded. Desalination of seawater is increasingly used but the process is risky and it has huge impacts on the environment. Rainfall generally is too little to rely on. This paper discusses the water situation in GCC countries and proposes water transfer from the Iraqi Kurdistan Region (IKR). It argues that desalination cannot be the only future solution for water shortage; additional sources can be developed. Water from IKR can alleviate the existing water shortage problem.     

Developments in the Thermal Drying of Sewage Sludge

The application of heat to dried sewage sludge has been practised by the water industry for many years. Early technologies were effective but their utilization of energy was not so efficient. Other industries have faced up to this problem and, as a result, have developed thermal-drying techniques which are more efficient and therefore more cost effective. In recent years, the transfer of this technology to sewage-sludge drying has been taking place, and some companies have designed dryers specifically for this purpose. Commercial and legal pressures have also focused attention on the final product and its use in agriculture, horticulture, land reclamation, landfill, incineration, and as a substitute for fuel.
This paper reviews the work which has been undertaken to determine the changes which occur as sewage sludge is dried, and discusses the technology which is available at present. Factors influencing capital and operating costs and product choice are also included.     

秦皇岛 建设人性化水岸美景

2009年起,河北秦皇岛市对新开河、大马坊河、护城河、小马坊河、大汤河及小汤河综合整治。清理河道、污水截流、修桥铺路、绿化环境……如果说,前期工程将一条条安全河、清水河带到了市民身边,现在的工程就是人性化地为河岸整容梳妆。     

Influence of the South-North Water Diversion Project and the mitigation projects on the water quality of Han River

Situated in the central part of China, the Han River Basin is undergoing rapid social and economic development with some human interventions to be made soon which will profoundly influence the water environment of the basin. The integrated MIKE 11 model system comprising of a rainfall-runoff model (NAM), a non-point load evaluation model (LOAD), a hydrodynamic model (MIKE 11 HD) and a water quality model (ECOLab) was applied to investigate the impact of the Middle Route of the South-North Water Diversion Project on the Han River and the effectiveness of the 2 proposed mitigation projects, the 22 wastewater treatment plants (WWTPs) and the Yangtze-Han Water Diversion Project. The study concludes that business as usual will lead to a continuing rapid deterioration of the water quality of the Han River. Implementation of the Middle Route of the South-North Water Diversion Project in 2010 will bring disastrous consequence in the form of the remarkably elevated pollution level and high risk of algae bloom in the middle and lower reaches. The proposed WWTPs will merely lower the pollution level in the reach by around 10%, while the Yangtze-Han Water Diversion Project can significantly improve the water quality in the downstream 200-km reach. The results reveal that serious water quality problem will emerge in the middle reach between Xiangfan and Qianjiang in the future. Implementation of the South-North Water Diversion Project (phase II) in 2030 will further exacerbate the problem. In order to effectively improve the water quality of the Han River, it is suggested that nutrient removal processes should be adopted in the proposed WWTPs, and the pollution load from the non-point sources, especially the load from the upstream Henan Province, should be effectively controlled.     

Mercury contamination in the vicinity of a derelict chlor-alkali plant. Part I: sediment and water contamination of Lake Balkyldak and the River Irtysh

A mercury-cell chlor-alkali plant operated in Pavlodar, Northern Kazakhstan, for 18 years and caused widespread contamination of the surrounding environment. Untreated wastewater from the plant was discharged to Lake Balkyldak, a shallow impounded lake without an outlet. The nearby River Irtysh was also suspected to be impacted by mercury (Hg) via the transport of contaminated groundwater. We took sediment and water samples from both aquatic systems, and also sampled soils along the shoreline of the lake and in the Irtysh flood plain. Sediments from Lake Balkyldak were found to be very heavily contaminated, with Hg concentrations in the surface layer reaching up to approximately 1500 mg kg(-1) near the wastewater outfall pipe. The contaminated lake sediments are prone to wind-driven resuspension and are acting as a strong source of Hg to the water column. Unfiltered lake water samples taken in shallow areas within 10-15 m from the shoreline contained from 0.11 microg Hg L(-1) in the less contaminated northern part of the lake to 1.39 microg L(-1) near the pollutant outfall in the south (up to 7.3 microg L(-1) on windy days). Sediments from the River Irtysh were only slightly impacted, with maximum Hg concentrations of 0.046 mg kg(-1) in the old river channel and 0.36 mg kg(-1) in floodplain oxbow lakes. In water samples from the River Irtysh, Hg was generally not detected, although trace concentrations (3 to 9 ng L(-1)) were found in some samples taken from oxbow lakes. We conclude that the river is not significantly impacted by Hg, but the highly contaminated Lake Balkyldak poses a threat and is in need of remediation. Potential remediation options for the lake are reviewed and are discussed in the context of experiences made at other Hg-contaminated sites.     

构建新农村基础设施建设投融资体系的思考

针对当前农村基础设施建设投资存在总量不足、结构不合理、效益低下等情况,通过调查分析,提出以市场化为取向、以财政为支撑、以政策性金融为支点的农村投融资体系的建议,从而解决了新农村基础设施建设投融资问题。     

十九世纪珠江流域文化景观特征 ——基于西方文献的分析

自古以来，河流及其流域构成了一些最 具活力和最复杂的景观。河流维系着人类社会， 人类社会则以多种方式利用河流，从而产生璀璨 的流域文明。广州作为西方人眼中的一座 “神 奇”城市，两千年来一直是中国最重要的海上门 户，现如今，我们可以从外国商人、船长、旅行 者、传教士等游记、报告或图像记录中获得大量 关于珠江流域文化景观的详细描述。本文尝试 将珠江流域的河流系统及其相关的文化景观作 为人类经验的重要组成部分进行研究，透过西 方人的视野，去分析其对珠江流域及其文化景 观的所见所闻，并深入挖掘珠江流域文化景观 的构成与特征，从而归纳出珠江流域文化景观 中的人水共生关系，为珠江流域文化遗产保护 研究提供了全新的视角与思路。     

住宅市场供需价格差异原因分析及对策研究

指出当前房屋供需价格差异原因在于开发商、购房者、政府三方利益的不均衡；为解决矛盾，开发商应进行销售定闰并努力降低成本，购房者应明确同购房效用，政府应统一制定住宅性能评定指标体系，完善房地产市场。     

寨·水·街——“建筑与水”国际概念竞赛方案简介

石宝寨是长江三峡沿线著名的旅游景点,三峡工程竣工蓄水后,将淹没石宝寨周边的传统街区。利用“跃迁式发展”观念,采用建筑与规划手段来保护及发展当地的文化脉络、空间特色,是参加“建筑与水”国际概念竞赛(UIA)的基本构思和出发点。     

运用远程浏览系统提升污水处理运营监管水平

政府部门如何对市场化运营的污水处理厂进行有效监管，是一个亟待解决的难题。介绍了一个有别于传统的水质、水量在线监测系统，已经实际运行并取得良好效果的PLC人机界面远程浏览系统。依托该系统，政府监管部门可以直接通过互联网在线浏览污水处理厂主要设备的实际运行状况．突破了政府监管受人力、物力资源限制的瓶颈，使监管水平得以提高。     

我国地表水水源热泵技术研究及应用现状

地表水水源热泵技术具有节能、环保等优势，在我国长江流域沿线区域有着较广泛的应用前景。本文系统地总结了这项技术在我国各地的应用情况以及自上世纪八十年代以来我国在相关领域的研究进展，对应用江水源热泵进行了实地调研，并总结了存在的问题，最后提出了此项技术应予重视的研究方向。