Domestic sewage contains a large amount of organic matter (such as protein, sugar, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms, which can cause the spread and epidemic of infectious diseases. Therefore, domestic sewage must be treated before discharge.

1、 The characteristics of domestic sewage

(1) Multiple sources: In addition to human feces and kitchen sewage, there are also sewage generated from household cleaning, bathing, and daily life;

(2) Fast growth: With the improvement of farmers' living standards and changes in their lifestyles, the amount of domestic sewage generated also increases;

(3) Large fluctuations: The lack of separation between rain and pollution leads to significant fluctuations in the water volume;

(4) Low treatment rate: sewage is discharged intermittently, with small and dispersed displacement;

(5) The concentration of nitrogen and phosphorus in sewage is high, and it contains a large amount of nutrients, bacteria, and viruses.

2、 Domestic sewage treatment methods

The key to natural biological solutions for wastewater include wetland plants, land use, and stable pond treatment technologies. This type of method is suitable for areas with natural conditions such as abandoned depressions, low pits, and river embankments, and suitable for long-term climate. It covers a large area and is suitable for solving situations with light pollution and small sewage volume.

The key to biological solution of wastewater can be divided into two categories: activated sludge method and biofilm method. Based on the strategy of strengthening manpower, it can deal with wastewater with large water volume and poor water quality.

Based on the characteristics of domestic sewage and the current status of sewage treatment technology, Huapu buried integrated sewage treatment equipment is a water treatment commodity that can be buried underground. The surface above the equipment can be used for greening or other purposes, without the need for building houses, heating and insulation, automatic control, no need for manual management, no sludge reflux, simple operation, convenient maintenance, wide application fields, and good solution effects. The wastewater treated by this equipment meets the Class 1B comprehensive discharge standard for wastewater treatment in China.

3、 Domestic sewage treatment equipment should be selected this way

1. The equipment can be buried underground, with low noise, small footprint, high efficiency of oxygenation, and no impact on the surrounding environment.

2. Automatic control, no need for employee management.

3. The scope of pollutant removal is broad, and it can simultaneously remove nitrogen, phosphorus, and organic matter.

4. Control systems for water and sewage tanks, touch oxidation tanks, secondary sedimentation tanks, disinfection tanks, and aerobic sludge digestion tanks.

5. The remaining sludge production is small, solving high efficiency.

6. Low investment and low operating costs.

7. New technology, good effect, long service life, and convenient maintenance and management.

4、 Application scope of domestic sewage treatment equipment

Suitable for solving domestic sewage in residential areas, hospitals, colleges, villa communities, hotels, nursing homes, highway service areas, village clinics, and other areas. Aquatic processing plants, livestock processing plants, slaughterhouses, washing plants, fresh milk processing plants, and industrial wastewater treatment.

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