Development of water quantity and quality model in urban water cycle

城市水循环水量和水质模型的开发

基本信息

批准号：
13838005
负责人：
ARAMAKI Toshiya
金额：
$ 2.24万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13838005/
关键词：
Disposer Influent water quality in sewage Solid waste Life Cycle Assessment Water Environment CO2 Geographical Information System Sewage quantity 下水流入量下水流入水質東京都

项目摘要

This study aims at developing simulation model of urban water cycle in which includes water quantity and quality component, and evaluating the impact of water management measures hi the aspects of water quantity, quality and life cycle environmental loads.First, the simulation model was developed in the Tokyo 23 wards area, based on the water balance model which was already developed by our research group. For calculating influent water quality in each sewage treatment plant, unit loading per floor area of each building use was estimated and used. However influent water quantity was well estimated in each plant, influent water quality could not. Other factors such as land use pattern and daytime population were investigated, but accuracy of water quality was not improved. The necessity to analyze the detail of pollutant load from factories was suggested.installation of disposer system was adopted as one of water management measures which influence both water quantity and quality, and its following influences were estimated ; influent water quantity and quality in each sewage plant, amount and quality of collected municipal solid waste, energy balance in each sewage and solid waste incineration plant, energy consumption in solid waste collection, etc. When the current treatment systems were assumed to be used, the total CO2 emission would not change with the installation of disposer system. The energy recovery efficiency in each plant was suggested as a key factor for this evaluation.The simulation model of life cycle environmental impacts in solid waste management was developed, and applied to the disposer installation in Tokyo. Global warming potential, acidification potential and nutrient enrichment potential were selected as indicators, and several scenarios which include various treatment options were investigated.

本研究旨在建立包含水量和水质组成部分的城市水循环模拟模型，并评估水管理措施对水量、水质和生命周期环境负荷的影响。东京 23 区，基于我们研究小组已经开发的水平衡模型。为了计算每个污水处理厂的进水水质，估计并使用了每个建筑用途的单位面积负荷。然而，每个工厂的进水量都得到了很好的估计，但进水水质却无法估计。对土地利用模式和白天人口等其他因素进行了调查，但水质的准确性没有提高。提出了对工厂污染物负荷进行详细分析的必要性，将安装处理器系统作为影响水量和水质的水管理措施之一，并对其影响进行了估算；各污水厂的进水水量和水质、收集的城市固体废物的数量和水质、各污水和固体废物焚烧厂的能量平衡、固体废物收集的能耗等。假设使用现有的处理系统， CO2 排放总量不会因垃圾处理系统的安装而改变。建议将每个工厂的能源回收效率作为此次评估的关键因素。开发了固体废物管理生命周期环境影响的模拟模型，并将其应用于东京的处理器安装。选择全球变暖潜力、酸化潜力和营养物富集潜力作为指标，并研究了包括各种处理方案的几种情景。