Water management hierarchy
Encyclopedia
Water Management Hierarchy (WMH) is a hierarchy of water conservation
priorities. Levels of the hierarchy from the highest to the lowest in terms of the priority for water conservation
include elimination, reduction, outsourcing/reuse and regeneration. The most preferred option is elimination, followed by reduction of water demand. After that, direct reuse/recycling and water outsourcing through method such as rainwater harvesting
are preferred. This is followed by regeneration or treatment of wastewater before being reused. Freshwater will only be used when all water-saving options have been explored.
The WMH was used as an effective screening tool in cost effective minimum water network
methodology to stretch the limits of water savings beyond those achievable using conventional pinch analysis
approach.
Water conservation
Water conservation refers to reducing the usage of water and recycling of waste water for different purposes such as cleaning, manufacturing, and agricultural irrigation.- Water conservation :Water conservation can be defined as:...
priorities. Levels of the hierarchy from the highest to the lowest in terms of the priority for water conservation
Water conservation
Water conservation refers to reducing the usage of water and recycling of waste water for different purposes such as cleaning, manufacturing, and agricultural irrigation.- Water conservation :Water conservation can be defined as:...
include elimination, reduction, outsourcing/reuse and regeneration. The most preferred option is elimination, followed by reduction of water demand. After that, direct reuse/recycling and water outsourcing through method such as rainwater harvesting
Rainwater harvesting
Rainwater harvesting is the accumulating and storing of rainwater for reuse before it reaches the aquifer. It has been used to provide drinking water, water for livestock, water for irrigation, as well as other typical uses. Rainwater collected from the roofs of houses and local institutions can...
are preferred. This is followed by regeneration or treatment of wastewater before being reused. Freshwater will only be used when all water-saving options have been explored.
The WMH was used as an effective screening tool in cost effective minimum water network
Cost effective minimum water network
Cost effective minimum water network is a holistic framework for water conservation which considers all conceivable methods to save water based on the water management hierarchy....
methodology to stretch the limits of water savings beyond those achievable using conventional pinch analysis
Pinch analysis
Pinch analysis is a methodology for minimising energy consumption of chemical processes by calculating thermodynamically feasible energy targets and achieving them by optimising heat recovery systems, energy supply methods and process operating conditions...
approach.
See also
- Cost effective minimum water networkCost effective minimum water networkCost effective minimum water network is a holistic framework for water conservation which considers all conceivable methods to save water based on the water management hierarchy....
- Systematic Hierarchical Approach for Resilient Process Screening (SHARPS)Systematic Hierarchical Approach for Resilient Process Screening (SHARPS)Systematic Hierarchical Approach for Resilient Process Screening is a cost screening technique to assist designers achieve a desired investment payback period during preliminary design of water-using systems. Heuristics involving equipment susbtitution and intensification are used to guide...
- Water Pinch
- Water conservationWater conservationWater conservation refers to reducing the usage of water and recycling of waste water for different purposes such as cleaning, manufacturing, and agricultural irrigation.- Water conservation :Water conservation can be defined as:...