"Mitigating Groundwater Depletion and Water Waste in an Urban Area"  

Objective - "Mitigating Groundwater Depletion and Water Waste in an Urban Area"

Introduction of our Project: An outline of the key objective of green and rain technology.

• ENVIRONMENTAL PRESERVATION
• RESOURCE EFFICIENCY 
• SUSTAINABLE DEVELOPMENT
• ENERGY EFFICIENCY
• HEALTH AND WELL BEING
• ECONOMIC GROWTH
• RESILIENCE TO CLIMATE CHANGE

Advantages of Our Project:

• River Catchment Management: Creation of green corridors, rainwater harvesting zones , mapping of channels for potential recharge zones to store floodwater and artificial groundwater recharge structures in the urban areas (where groundwater is five-six meters below the surface), will subsequently contribute to reducing groundwater depletion.
• Technology and Monitoring: Leverage technology for real-time monitoring of groundwater levels, such as remote sensing, IoT devices, and data analytics can help in informed decision-making and enable prompt action to mitigate groundwater depletion.
• Wastewater Recycling and Reuse: There is a need to encourage the use of treated wastewater for non-potable purposes like industrial processes to reduce the reliance on freshwater sources and alleviate the pressure on groundwater extraction.

How and where to use RO Reject water ?

Being most of places are facing water scarcity it is essential to use every drop of water effectively. As the awareness of pure and safe drinking water increases, The use of water purifer has increased. RO is essential part for various water purifier. During RO operation approx 2-3 times of water comes out as reject water. This water is having higher TDS therefore use of water must be done carefully. Lets discuss step by step procedure to reuse it effectively and make our contribution towards water conservation.

Steps for RO reject water use :

1. Water Collection : Because of intermittent operation of RO based water purifier in domestic use., it is important to collect RO reject water. A small tank cab be put for collecting waste water from purifier. water collection is important as without collection, it is not possible to effectively use this water. RO reject water is having higher pressure as it is coming out of RO pump, Water can also be directly taken to some height with consultation of manufacturer or can be collected to same level directly to tank so that collection can be done effortlessly.

Sample RO collection

2. Water Storage : Suitable water storage tank should be kept for water collection, ideally water storage should be capable of storing 1-2 days of of RO reject volume. For calculation, suppose if you are using 20L purified water on daily basis, 60-100 Ltr of storage shall be sufficient for reusing this water. Similarly water storage tank must be selected based on the water consumption and waste generation.

Sample Storage Tank

3. Water Utilization : RO reject water utilization can be planned based on need of water use of house, This water is can be considered as low grade water and con be used in the area where purity of water is not very concern, Please note as this water is coming out water purifier it is filtered water and free from sand particles. Broadly this water can be effectively utilized for below purposes.

(a). Cleaning

RO Reject water can be effectively use for cleaning purpose, Like Utensil cleaning, Floor cleaning, Car cleaning etc.

(b). Gardening

Water with TDS lower than 2100 ppm can be used for plants, Ro reject water is having minerals and it is good for plants if watering is done properly. It has been observed that with higher minerals plant grows rapidly also during gardening observation of salt formation at soil layer to be checked, If we are getting whiteish layer on soil, this water should not be used as it is one of the indication of higher salt availability in water water

(c). Toilet flushing

Toilet is one of the area where low grade water can be used for flushing, It is recommended to use waste water of purifier for flushing application. In general approx 10-15 liter of water is wasted during single flush operation.

Rainwater Harvesting (RWH)

Rainwater harvesting (RWH) is the collection and storage of rain, rather than allowing it to run off. Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit (well, shaft, or borehole), aquifer, or a reservoir with percolation, so that it seeps down and restores the ground water. Dew and fog can also be collected with nets or other tools. Rainwater harvesting differs from stormwater harvesting as the runoff is typically collected from roofs and other surfaces for storage and subsequent reuse.[2]: 10  Its uses include watering gardens, livestock,[3] irrigation, domestic use with proper treatment, and domestic heating. The harvested water can also be committed to longer-term storage or groundwater recharge.[4]

Rainwater harvesting is one of the simplest and oldest methods of self-supply of water for households, having been used in South Asia and other countries for many thousands of years.[5] Installations can be designed for different scales including households, neighbourhoods and communities and can also be designed to serve institutions such as schools, hospitals and other public facilities.[6]

RO Rejected Water + Rain Water

We have made a storage tank for rain water and waste water in our project

RAIN TECHNOLOGY:

• Water Resource Management
• Water Scarcity Mitigation
• Environmental Conservation
• Resilience to Climate Change
• Water Quality Improvement
• Reduced Energy Use
• Cost Savings

GREEN TECHNOLOGY:

• Environmental Sustainability
• Climate Change Mitigation
• Resource Conservation
• Enengy Efficiency
• Economic Benefits
• Health and Well-being
• Technological Advancements

Advantages of Rain technology:

• RWH systems provide water at or near the point where water is needed or used.
• Provides a water supply buffer for use in times of emergency or breakdown of the public water supply systems.

• Water conservation - as less water is required from other sources.

• Water conservation - as less water is required from other sources;

• Financial savings - where rainwater can be used in place of water purchased from water vendors

Advantages of Green Technology:

• Reduces carbon footprint and slows down the effects of global warming due to the reduction in CO2 emissions.
• Helps conserve natural resources and the environment
• Reduces energy consumption.
• Reduces waste things to recycling.
• Renewable energy saves money.
• Renewable energy has numerous environmental benefits.
• Renewable energy leads to cleaner water and air.