Application and development of septic tank
As a domestic sewage pretreatment structure, septic tanks are widely used at home and abroad.
Generally, it plays a role in protecting the environment to a certain extent.
Common problems in the use of septic tanks
At present, the design of 1500 gallon septic tanks has been standardized and serialized, and the designer is often the first
The staff selects the standard drawing, and then the construction personnel build according to the drawing. Sometimes cut corners,
Phenomena such as inadequate construction are manifested in the following points:
1) The construction of the septic tank fails to meet the design requirements, resulting in poor treatment effect. Due to the rough construction quality of some 1500 gallon septic tanks, the leakage of septic tanks often occurs, which not only pollutes groundwater, but also leads to soft geology near buildings, resulting in different degrees of dumping of buildings, affecting the safety of building foundations and houses. And brick pools are easily corroded by acid, causing cracks and blockages. Various indicators such as effluent also far exceed the discharge standards stipulated by the state.
2) Oil and fat accumulation in the filter. A large amount of oil and fat enter the system, accumulate beyond treatment, block the system, cause sewage overflow and other problems, pollute the environment and endanger people's health.
3) The facilities are scattered and the daily management is not in place. As a result, the septic tank has been cleaned by no one for a long time, and the sludge is accumulated at the bottom of the 1500 gallon septic tank. The effective volume Et of the septic tank tends to decrease. lose its processing power. 4) The construction is complicated, the cost is not low, the construction period is long, the maintenance is difficult, and the service life is short. Please contact us to get the septic tank price.
Although cement septic tanks will take some waterproof measures, as time goes by, cracks will always appear, causing fecal liquid to leak and pollute the environment. Plastic septic tanks are a good choice and will last longer. The English 1500 gallon plastic septic tank is one of the most commonly used options and we recommend you to purchase it.
Septic tank arrangement
There are roughly two ways to arrange septic tanks: one is decentralized arrangement, that is, plastic septic tanks are set up in one or two buildings; the other is centralized arrangement, that is, an area, a group or an independent The construction unit arranges the scope of services. The more dispersed the layout of plastic septic tanks, the smaller the capacity of each tank; on the contrary, the more concentrated the layout, the larger the tank capacity. By comparing the economic indicators of cost, land use, environmental pollution, and operation management, 7 types of septic tanks were compared and analyzed, and it was found that with the increase of the volume of the 1500-gallon plastic septic tank, almost all indicators decreased. ; For septic tanks below 20m, the use of reinforced concrete septic tanks is superior to brick septic tanks in terms of cost, performance, and service life. The more dispersed the 1500-gallon brick septic tank, the greater the chance of leakage ; Therefore, we recommend 1,500 gallons of plastic septic tanks. From a management point of view, centralized septic tanks are obviously easier to manage than decentralized septic tanks, and operations such as sludge removal have less impact on the community environment than decentralized ones. Underground septic tank. Therefore, when conditions permit, priority should be given to the centralized arrangement of septic tanks in the community, but not one size fits all. It depends on the situation. The location of the septic tank should be located in a place that is concealed, easy to clean, and where people do not often stay and move. Leakage from septic tanks contaminates surrounding building foundations and underground water intake structures. The wall of the underground septic tank should have a sufficient distance from the protected facilities. Generally, the net distance from the building is not less than 5m, and the net distance from the underground water intake building is not less than 5m. If it is less than 30in, when the clearance requirement cannot be met, certain protective measures need to be taken.
Therefore, from the perspective of safe use and longevity, the 1500-gallon plastic septic tank has more room for promotion and is also conducive to centralized management.
Septic tank management
The use and management of underground septic tanks, the main link is to carry out the cleaning cycle according to the design requirements.
Regularly remove the sludge to ensure the normal use of the septic tank. The cleaning cycle of plastic septic tanks is related to the temperature and air temperature of fecal sewage, the nature of buildings, and the quality and quantity of drainage water. The plastic septic tank with a capacity of 1500 gallons also has its own suitable crowd density and cleaning cycle.
If the cleaning cycle is too short, the excrement concentration in the underground septic tank is too high, and the gap between the actual cleaning cycle is too large, which will affect the normal fermentation and sewage treatment effect, and even cause the feces to overflow and affect the environment.
If the designed cleaning period is too long and the volume of the underground septic tank is too large, it will increase the cost.
GBJ15-88 "Code for Design of Building Water Supply and Drainage" (hereinafter referred to as "Code") requires a cleaning cycle of 3 months to 12 months, and the actual design needs 3 months to more than 9 months. 3 months, the acid reduction period is about 5 months. Practice has proved that the cleaning cycle should be determined according to three factors: sewage treatment effect, construction cost, and management. Generally, the cleaning period should not be less than 12 months. Therefore, the completed plastic septic tank should be maintained and cleaned regularly. Although the volume of 1500 gallons is not small for a plastic septic tank, it also requires a reasonable crowd density and cleaning cycle.