Septic tanks have become Marion County’s latest preoccupation. The county Chief Sanitarian wrote an article on The Septic Tank and Its Use for all the interested residents. The purpose of the said article is to give information on what one can expect from his septic tank. Septic tanks provide for a decent sewerage system for rural areas and newly built subdivisions. A septic tank necessitates the setting up of a filter bed or a tile disposal field where sewage materials can be discharged.
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Raw sewage is dark grey in color and is similar in appearance to soapy water. One pound of solids is present in each 150 gallons of sewage. Of the solid portion, fifty percent is filled by minerals while the other half is filled by vegetable and animal matter. The vegetable and animal matter composition disintegrates into a forty percent suspension which clears up in time and the other 60 percent in solution that remains unchanged. Our water tanks article is further discussed at water tanks for sale.
The clearance of the effluent portions that settle and don’t settle is the chief predicament in sewage treatment. Waste material is digested and decomposed at a quicker rate inside a septic tank. Scum is formed by the lighter parts of sewage plus grease while the solid parts of the waste matter descend to the base of the tank where decay takes place almost immediately.
Sewage is decomposed through the presence of aerobic and anaerobic bacteria. They turn the organic solids into liquids and gases. Not all of the waste material is digestible so those that remain undigested sink to the bottom and form sludge. The bacteria plays a very important role in the processes that take place within the septic tank. Septic tanks with chemicals in them will inhibit the decomposing action of the bacteria. Clearing drains with the use of chemical substances and lye is not advised.
A certain volume of liquid is discharged out the side of the tank when fresh sewage enters the tank and this is how liquid levels are maintained at equilibrium in a septic tank. Fresh sewage is diverted towards the base of the tank through the action of a structure at the inlet of the tank known as the baffle. This prevents raw sewage from exiting the tank right away and leaves the scum intact. The septic tank’s baffle at the outlet helps achieve this purpose. Visit underground rainwater tanks for more information on water tanks.
The discharged waste matter reeks even if decomposition has taken place for the most part of its components. A septic tank cannot double as a storage container for rain water. A common two bedroom home can benefit sufficiently from a 500 gallon septic tank. More spacious homes call for septic tanks that have at least a 1000 gallon capacity. The performance of a septic tank is greatly affected by its sanitary condition so it has to be cleaned at least once every three years.
