Wednesday, 11 November 2020

Most people do not stop to think about the wastewater while bathing, doing dishes or using washing machines. Once it goes down the drain it is no longer of concern to anyone. City sewage treatment plants take care of waste produced and washed down the drains. Isolated or remote locations where connection to the mains drainage or city’s sewer pipelines is not possible septic tank units are traditionally used. Owners of these small treatment systems or septic tanks must adhere to the guidelines issued by the authorities as per the water related legislation. To escape the penalties and to stop polluting the environment, it is the responsibility of the user to maintain and operate the system in a manner that safely and efficiently treats the sewage.

Sewage that goes down the drains into the septic tanks is not just organic waste flushed down the toilets. Drains from the kitchen and wash machine are also connected to the same septic tank. All water including chemical in the form of detergents, dish washing and household cleaning agents etc., also finds way in to the tank. Injudicious use of these chemicals could prove detrimental to the functioning of septic system. A failed waste treatment unit could lead to unmanageable situations, such as overflows from the tank and leach field or rotten egg smell from the tank, backflow experienced in the toilets or shower area whenever water is run for long.

A few simple precautions and pre-emptive steps could save the owners trouble as well valuable time and money. Always inform your guests beforehand that the drains from the house are not connected to the mains drain and flow into the septic unit. Tell them what not to throw inside the toilet bowl and avoid harming the system. Dispose the cotton wool, baby wipes, sanitary hygiene products and nappies into the waste bins and not through the toilet drain. Do not empty the medicine bottles, mouth wash etc. in the toilet bowl. These activities may alter the ecosystem of the tank and kill off the favourable bacteria that work towards efficient break down of the effluent.

Septic tank would work efficiently if ample aerobic bacteria are allowed to develop inside the tank and digest the sewage. This could be achieved by installing aerator pump in conjunction with the septic tank system. Aerator pumps, commonly called conversion units consist of an air pump and diffuser unit along with some other useful components helpful in better working the pump. These pumps release oxygen laden air bubbles inside the tank and promote aerobic action on the incoming effluent. Aerobic bacteria are 20 times more efficient than the anaerobic bacteria and do not leave behind bio mat. This technique is similar to that used in the city sewage treatment plants. Therefore fitting existing septic system with conversion unit could give you results as good as the sewage treatment plants.

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