What is 30 mins time in case of a septic tank even though it took a detention period of 12-36 hours?
Eidograph has the simple function of copying maps and plots to a different scale. It works on the same principles as a pantograph with the only difference of mechanism. The pantograph uses linkages arranged in a parallelogram while the eidograph might have either a string and pulley system or parallRead more
Eidograph has the simple function of copying maps and plots to a different scale. It works on the same principles as a pantograph with the only difference of mechanism. The pantograph uses linkages arranged in a parallelogram while the eidograph might have either a string and pulley system or parallelogram linkages.
There are two pens attached. If you move the primary pin on the map, after setting a desired scale, the secondary pen draws the same map scaled to the scale you set.
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AdityaBhandakkar
Hi, Let me correct your concept, in septic tank detention period off 24 hours is considered. In this case, the rate of flow of influent= rate of flow of effluent. Septic tank is to be designed in such a way that see wait is retained in the tank for 24 hours and all the biological decomposition in thRead more
Hi,
Let me correct your concept, in septic tank detention period off 24 hours is considered. In this case,
the rate of flow of influent= rate of flow of effluent.
Septic tank is to be designed in such a way that see wait is retained in the tank for 24 hours and all the biological decomposition in the absence of air that is an aerobic bacteria takes place and breaks the soil which living a very small quantity of soil which is commonly called as sludge which settles at the bottom. And the clearwater which out from the tank is known as effluent.
As you asked in question the 30 minutes is regarding the washing time of the tank.
Hope you get clarity.
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