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Table of Contents
Introduction
Introduction
There are a few types of condensers including Air Well and rooftop.
Hydropanels are solar-powered condensers.
According to a South African case study, "Small, local solutions can crack water crises"
Prevention
Prevention
When we avoid overconsumption of products that consume the most water, we can have a greater, and longer-lasting impact that small, at home changes.
Learn about which activities use the most water, to develope a plan on curring your own water footprint. In many cases consuming less will have a greater impact than harvesting water, though water collection may be your first step in your water conservation journey.
Basics of Air Wells
Basics of Air Wells
Life Expectancy: 100+ years.
Pro: This can use natural materials, air flow, and humidity to condense water into liquid form using passive air flow. Modern variations have been created with metal roofs and gutters for water collection, with insulation under the roof increasing water collection by about 50%
Con: Requires humidity to work, and huge condensers such as the one shown on the right only produce around 5 gallons of water per night, making them extremely inefficient considering the amount of mining and construction effort to build them.
Solution: Modern versions of condensers work much better, using active components like fans to boost efficiency.
Fuel Types: Passive Air Flow, Humidity
Fog Nets
Fog Nets
These rely almost entirely on the presence of frequent fog and wind, with the critical factors of the technology being the fog's density, wind speed, and the material of the mesh. The polypropylene netting collects droplets which can then gather. The combined weight of the droplets pull the water down to be collected in a tube at the bottom of the nets, which direct the water harvest into a pipes which can travel down hill to be drunk or used in farming.
This can be ideal on desert hillslopes and other dry regions along coastlines where fog density can be extremely high but other water sources low. Ideal placement for nets are hilltops, where gravity can bring the water into the valley for storage and use.
Hydropanels
Hydropanels
These run on solar power to condense moisture from the air into drinkable water.
Warka Tower
Warka Tower
Life Expectancy: unknown
Pro: Works with passive air flow and humidity to produce potable water. Design at top helps deter birds from perching or pooping on the tower (protecting the supply), and the shade at the bottom is designed to provide a comfortable gathering spot while reducing evaporation.
Con: Relies on fog, dew, and rain.
Solution: Alternative water harvesting methods may need to be included in the community's water security plan.
Fuel Types: Water Cycle - Rain and/or aquifer water+ passive air flow + gravity.
Warka Towers "Locations with high rates of fog or humidity are the best places to install the Warka Tower. The water harvesting capacity strictly depends on the meteorological conditions and the aim is to distribute from 40 to 80 liters (10 to 20 gallons) of drinking water every day for use of the community."
"Warka Tower is designed to harvest potable water from the atmosphere (it collects rain, harvests fog and dew). It functions only by natural phenomena such us gravity, condensation & evaporation and doesn’t require electrical power. Warka Tower is designed to be owned and operated by the villagers, a key factor that will facilitate the success of the project. The tower not only provides a fundamental resource for life – water – but also creates a social place for the community, where people can gather under the shade of its canopy for education and public meetings."
System Additions
System Additions
Rain Barrels/Butts & Cisterns
Rain Barrels/Butts & Cisterns
These are generally used to collect rain and snowmelt, however they can also be paired with rooftop air condenser systems, to help store the water for later use.
Life Expectancy: 20 years.
Pro: Safely stores rain or grey water for later use.
Con: An turn into a breeding ground for mosquitoes, or be contaminated with dead animals that can fall/get trapped inside. I've found dead frogs who might have hatched but not been able to get out. Dead leaves can build up, leaching tannins into the water.
Solution: Install fixtures that will help keep wildlife and leaves out of the system. Make sure to clean these to prevent plugging and backups. Empty and clean out the container periodically.
Fuel Types: Water Cycle + Gravity
Plants to Increase Permeability on Slopes
Plants to Increase Permeability on Slopes
The following focus more on systems to boost soil permeability, rather than harvesting drinking or irrigation water. By sequestering water within the soil, we can (to an extent) remove the need for irrigation.
Systems such as swales double as a measure to sequester water in the soil, and when full enough, they can help transport excess water to a secondary location such as body of water, a rain garden, or regular flowerbeds.
Earthworks
Earthworks
Key Lines
Key Lines
Swales
Swales
Tools & Resources
Tools & Resources
Guides & Practical Information
Guides & Practical Information
Water Harvesting Towers These are an advanced design that can be used on farms or as central features to be shared by members of a community. Their design captures droplets and directs them to a catchment point. A wide "skirt" provides shade to the collected water, to reduce evaporation and to provide shade to people visiting the tower for water.
Landscaping Know-How
Landscaping Know-How
Greener LAND "This tool helps you decide which landscape interventions are best suited towards landscape restoration for the landscape you operate in. Start by selecting the characteristics of your landscape on your left."
Organizations
Organizations
International
International
WASH "curriculum has been developed and integrated in schools (Shikshaniketan, Residential Bridge Schools & Solar Bridge Schools) run by Barefoot College International. Every year, new activities and methods are included which makes learning interactive. Area covered include Water, Sanitation, Health, Hygiene and Environment."
Warka Water "Every drop counts"
NGO Supplying Company
NGO Supplying Company
Aqualonis "Each FogCollector is quick and easy to install while requiring no maintenance. The collectors are carbon-neutral as they are operated without energy. All materials are food-safe.
aqualonis FogCollectors produce high-quality drinking water (approved by WHO standards) and can provide water for agriculture and forestry.
Please note that we do not vend to private individuals. aqualonis FogCollectors are intended for the use of NGOs, public bodies and corporations."
Africa
Africa
Warka Water "Every drop counts" To date they have worked in Ethiopia and Cameroon.
WASH "curriculum has been developed and integrated in schools (Shikshaniketan, Residential Bridge Schools & Solar Bridge Schools) run by Barefoot College International. Every year, new activities and methods are included which makes learning interactive. Area covered include Water, Sanitation, Health, Hygiene and Environment."
Asia
Asia
India
India
Rainwater Project "So far, Rainwater Project has restored six historic water structures in Telangana — Kokapet Well, Goshala Well, Kondapur Well, Gachibowli, Baaram Bavi and Bansilalpet Well." "It also offers rainwater harvesting and water conservation consultancy services for individual homes, gated communities, farms, resorts, schools and other institutions." - Kalpana Ramesh: The architect leading restoration of Telangana’s historic stepwells
WASH "curriculum has been developed and integrated in schools (Shikshaniketan, Residential Bridge Schools & Solar Bridge Schools) run by Barefoot College International. Every year, new activities and methods are included which makes learning interactive. Area covered include Water, Sanitation, Health, Hygiene and Environment."
Europe
Europe
UK
UK
Yorkshire Wildlife Trust works (among many other activities) to restore dewponds and educate others in how to do the same.
North America
North America
WASH "curriculum has been developed and integrated in schools (Shikshaniketan, Residential Bridge Schools & Solar Bridge Schools) run by Barefoot College International. Every year, new activities and methods are included which makes learning interactive. Area covered include Water, Sanitation, Health, Hygiene and Environment."
Mexico
Mexico
Isla Urbana "has designed an environmentally, socially, and economically sustainable rainwater harvesting system that collects and cleans rainwater for households, schools, and health clinics.
The system is inexpensive, easy to install, and provides individual residences with about 40% of their annual water supply. If implemented on a large scale throughout Mexico City, this simple technology could provide 30% of the city’s water and help give a sustainable water source to the 12 million Mexicans who lack access to clean water."
USA
USA
DigDeep "Water-storage barrels with pumps or household rainwater catchment solutions to reduce the reliance on single-use bottled drinking water in Chichiltah, NM, supported by community education around plastic pollution and sustainable alternatives to bottled water."
Oceana
Oceana
WASH "curriculum has been developed and integrated in schools (Shikshaniketan, Residential Bridge Schools & Solar Bridge Schools) run by Barefoot College International. Every year, new activities and methods are included which makes learning interactive. Area covered include Water, Sanitation, Health, Hygiene and Environment."
South America
South America
WASH "curriculum has been developed and integrated in schools (Shikshaniketan, Residential Bridge Schools & Solar Bridge Schools) run by Barefoot College International. Every year, new activities and methods are included which makes learning interactive. Area covered include Water, Sanitation, Health, Hygiene and Environment."
Maps
Maps
North America
North America
USA
USA
Stormwater Management and Restoration Tracking (SMART) Tool (Interactive) Tool tracks storm water management practices in the Chesapeake Bay Watershed which spans, Delaware, New York, Pennsylvania, Virginia, and West Virginia
Grants & Funding
Grants & Funding
Oceana
Oceana
Australia
Australia
Western Australia
The Sustainability Grants Program (in the City of Cockburn) "offers funding for projects related to six sustainability themes. Open to small businesses, schools, not-for-profits, and collective households, successful applicants can receive up to $4,000 for their project."
Companies
Companies
Fog Net Producer
Fog Net Producer
Aqualonis "Each FogCollector is quick and easy to install while requiring no maintenance. The collectors are carbon-neutral as they are operated without energy. All materials are food-safe.
aqualonis FogCollectors produce high-quality drinking water (approved by WHO standards) and can provide water for agriculture and forestry.
Please note that we do not vend to private individuals. aqualonis FogCollectors are intended for the use of NGOs, public bodies and corporations."
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