相关实验视频

Updated: Jun 16, 2026

Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus (SCUVA)

Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus (SCUVA)

Published on: October 31, 2011

水循环指数:对于当局和运营商来说,这是一个新的方法

Anabela Rebelo¹, Genève Farabegoli²

¹Portuguese Environment Agency, 2610-124, Amadora, Portugal; Fiber Materials and Environmental Technologies (FibEnTech-UBI), Universidade da Beira Interior, 6201-001, Covilhã, Portugal; European Union Network for the Implementation and Enforcement of Environmental Law (IMPEL), 1200, Brussels, Belgium.

|March 30, 2025

概括

一个新的水循环指数 (I_C) 评估了循环经济转型的水量和质量. 该指标在全球范围内应用,显示了工业用水管理的显著改善,将一家纸厂从负循环转移到中循环.

科学领域:

环境科学环境科学
水资源管理水资源管理
循环经济是一个循环经济.

背景情况:

传统的用水效率框架往往忽视了水量和水质的相互联系.
优化水的附加值和环境保护需要对水循环采取整体方法.
现有的指标可能无法完全捕捉工业和城市环境中水资源管理的复杂性.

研究的目的:

引入一个创新的指标,即水循环指数 (I_C),用于评估水量和质量平衡.
评估该指数在各种工业部门和城市废水处理厂的多功能性.
证明该指数在促进最佳实践和评估环境许可转换方面的有用性.

主要方法:

使用多标准决策分析开发水循环指数 (I_C).
包括11个关键因素:淡水消耗,废水排放,再利用,管理实践,危险物质,微塑料,生物多样性,营养回收,工业共生,污泥管理和激励工具.
应用I_C到七个国家的十四个设施,在一个纸厂的案例研究.

主要成果:

水循环指数 (I_C) 有效地将水循环分为五个级别:负面,没有,低,中,高.
该指数在各种工业部门和城市废水处理厂中显示出多功能性.
一个纸厂的案例研究表明,在修改环境许可并采用综合水资源管理后,从负循环到中循环的情况有显著改善.

结论:

水循环指数 (I_C) 提供了一个全面的工具,用于评估和增强工业和城市环境中的水循环.
由I_C等指标支持的综合水资源管理方法对于实现循环经济目标至关重要.
该研究强调了通过战略许可审查和最佳实践实施来大幅改善水资源管理绩效的潜力.

关键词:

循环经济是一个循环经济.环境许可证环境许可证工业排放工业排放工业排放废水排放的排放情况水的循环性就是水的循环性.

更多相关视频

Watershed Planning within a Quantitative Scenario Analysis Framework

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

The Floating Lab: Standard Operational Procedure for Collecting and Filtering Seawater Samples from Operating Ferries for Environmental DNA Analysis

The Floating Lab: Standard Operational Procedure for Collecting and Filtering Seawater Samples from Operating Ferries for Environmental DNA Analysis

Published on: August 1, 2025

相关概念视频

Quality of Water

Quality of Water

In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...

Testing Water Quality

Testing Water Quality

When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...

Weir: Problem Solving

Weir: Problem Solving

Water flow in open channels is often measured using hydraulic structures such as weirs, which allow precise calculation of discharge. In a rectangular channel, flow rates are measured using three types of weirs: rectangular sharp-crested, triangular sharp-crested, and broad-crested. The weir head is set at a fixed height above the channel bottom, simplifying calculations and enabling the relationship between depth and flow rate to be analyzed.For the rectangular sharp-crested weir, the flow...

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...

Vector Forms of Green’s Theorem

Vector Forms of Green’s Theorem

The study of fluid motion often involves understanding how local rotational behavior relates to global circulation. In the context of a pond with pollutants, direct measurement of water movement along an irregular shoreline can be impractical. Green’s Theorem in vector form provides an alternative by relating the circulation around a closed boundary to properties of the flow within the enclosed region.Measurements of water velocity at different points define a continuous vector field that...

Biological Treatment of Effluent and Waste Water

Biological Treatment of Effluent and Waste Water

Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...