The Advantages of Flooding are: -Formation of natural banks. -Formation of flood plains. -Rise in underground water table.
They add more water to the ocean.
Because they have a water supply for crops and drinking, washing etc. and rivers are often also used for transport. Add to this the possibility that the current of the water can be used for operating padlewheels that run machinery living next to a river was far more attractive proposition. Many rivers have flood plains that are regularly revitalised by fresh silt keeping soil fertile for the production of food. And if you live in a modern city, rivers are good to be near because they can be beautiful and a source of recreation.
Clarifier helps it clump together and fall to the bottom so that it can be vacuumed up.
Rikki.
first of all take the sample of the sand and insert it into a measuring jar, then add water as per required,then add half spoon salt for better setting time. shake the jar slowly....and wait for 10 minutes. after 10 minutes you can see the different layer of the actual sand,silt and water. for calculating the SILT CONTENT:- silt divide by total height .that means sand+silt=total height. multiply by100 for percentage. you can calculate silt content after 3 hr. also.
rain, snow, and melting ice add fresh water to the ocean, lowering the salinity there. Salinity is also lower near the mouths of large rivers. These rivers empty great amounts of fresh water into the ocean.
Evaporating the water salt is obtained; but rivers concentrations of sodium chloride are low and the method is not economical.
Flocculation! Silt is not going to settle out because the particle size allows it to remain suspended. If you add a bit of a flocculant such as alum, it allows the clay particles to be attracted to each other to form large clumps that will settle. This is the method that city water treatment plants use to treat millions of gallons per year...If it isn't the best way, at least it is the cheapest.
Water supplies -Contamination of water Clean drinking water becomes scarce.Diseases - Unhygienic conditions. Spread of water borne dieasesCrops and food supplies - Shortage of food crops can be caused due to loss of entire harvest.However, lowlands near rivers depend upon river silt deposited by floods in order to add nutrients to the local soil.Trees - Non-tolerant species can die from suffocation.Transport - Transport links destroyed, so hard to get emergency aid to those who need it.
green as most lakes and rivers are fresh water, so neutral.
You need two forms of grounding according to the code. Grounding to the water main is typically the best ground in a building. If you don't have a water meter you can add an extra ground rod.