Sea water intrusion, its causes and ways to overcome it

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Residents who live on the slopes of the mountain accustomed to feel the fresh water. however, when they go to the coastal area they will feel the water there is very different. The freshness they feel is much different. ingredients when bathing and some that enter the mouth feels a little salty even though it is water from the well.
As usually they will compare the water from the their villages that feels cool and fresh without any taste of sea water. this fact cannot be denied happened in various coastal areas. Fresh water that should feel fresh is contaminated by salt water.

Sea water intrusion


In the earth all water can meet and coalesce through various processes. Water flow from above will enter and meet the water with underneath.
The seashore area is the same. Ground water flowing from high to low. Fresh water from deeper land meets the salty ground water from the ocean. Freshwater contains less mineral salt so that its specific gravity is lighter. While saltwater has higher dissolved mineral content, sea water has a greater specific gravity. As a result sea water has greater pressure and moves towards fresh water.
The inclusion of sea water into the fresh groundwater is what is called sea water intrusion. this results in higher levels of salt water in the well and is not suitable for consumption.
The decrease in water quality is certainly very influential for the lives of humans and other living things. Besides the entry of sea water into the mainland also causes the collapse of coastal areas so that it can be dangerous for residential areas.

Causes of sea water intrusion


Given the danger of sea water intrusion for mutual survival, we must find a solution. to get the right solution, we must know the cause of sea water intrusion.
The following are some of the causes of sea water intrusion either caused by human actions or due to natural events

1. Groundwater Drilling


Intake of ground water without careful consideration can cause holes in soil that does not contain groundwater. this will push the sea water and fill the void in the layer

2. Rock layers and beach characters


Rocks on hard beaches such as corals and reefs will prevent sea water from entering the land, but sandy beaches have large cavities that allow sea water to enter the land easily.

3. Freshwater fluctuations on the beach


the presence of non-permanent fresh water causes seawater to fill empty areas when there is no fresh water. Meanwhile, salt water will maintain its position so that fresh water will be difficult to re-enter.

How to resolve


Once we know the cause of sea water intrusion, we will be able to determine the most effective way to overcome it.
Here are some of the ways we can do to deal with sea water intrusion.

1. Set the groundwater drilling system


the government must make a fee that arranges groundwater drilling procedures so as not to cause seawater intrusion. provide strict sanctions for violators in order to save everyone.

2. Planting mangroves


mangrove forests can be one way to prevent intrusion and abrasion. mangroves can hold sea water from entering the land so that they can protect the coast from sea water intrusion
.

3. Blocking boundaries


There needs to be a barrier between salt water and fresh water. The creation of a basin that functions to collect water and pump salt water into the sea will keep the sea water from getting larger.
Those are some things that we can do to preserve groundwater from marine intruders, hopefully it will benefit us all.

Thank you for reading my post. I hope you enjoy it.



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