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Characteristics of septic tanks
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A small domestic septic tank is a wastewater treatment device installed within the foundation of a residential home, capable of treating household sewage and discharging it on-site. From the perspective of water environmental protection and considering its cost-effectiveness, compared to municipal sewer systems, small domestic septic tanks have the following advantages:
Installing a septic tank requires low investment and has low costs.
Small household septic tanks are basically mass-produced in factories, allowing their prices to remain at a level that is affordable for domestic users. These septic tanks occupy only a very small plot of land and do not require complicated land acquisition procedures or high land expropriation fees.
Installation is unaffected by terrain, takes little time, and delivers quick results.
Installing a small household septic tank requires only a plot of land about the size of a compact car. The connection to the septic tank’s drainage pipes is short, and the installation site doesn’t have high requirements for terrain. Typically, it takes only about a week to install a septic tank, and once it starts operating, its wastewater treatment function can immediately take effect.
Maintaining the water volume around residential communities
After being treated by a purification tank, the effluent is typically discharged nearby into a small river or stream. This practice plays a significant role in maintaining adequate water levels in the small river or stream, enhancing the water cycle within residential communities, and preserving the surrounding natural scenery.
Sludge is relatively easy to utilize.
Septic tanks are primarily used to treat domestic wastewater. The treated water and sludge from these tanks generally contain no toxic substances. Depending on specific needs, the treated water and sludge from septic tanks can be recycled and effectively utilized.
Possesses relatively strong earthquake-resistant and disaster-resistant performance.
Since septic tanks do not require extensive mechanical equipment and their drainage systems are relatively simple, they can be quickly repaired and restored to full functionality even after being damaged by earthquakes or other disasters. Depending on the pace of restoration of water and power supplies following a disaster, the water stored in septic tanks can also serve many useful purposes.
The tank body is robust, made of fiberglass-reinforced plastic/carbon steel, and boasts a long service life.
Stable effluent quality with high pollutant removal rate.
BOD5 can be reduced to below 20 ppm, with a removal rate exceeding 90%. The effluent is stable and exhibits minimal fluctuations.
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