Henan Guoqing Environmental Protection Technology Co., Ltd
Rural wastewater treatment equipment
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Rural wastewater treatment equipment is designed to effectively treat domestic sewage, food‑processing wastewater, bathing wastewater, toilet‑flushing wastewater, and other types of wastewater generated in villages, thereby preventing the direct discharge of effluent and pollutants into water bodies.
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Rural wastewater treatment equipment is designed to efficiently treat domestic sewage, food‑processing wastewater, bathing wastewater, toilet‑flushing wastewater, and other types of wastewater generated in villages. By preventing the direct discharge of sewage and pollutants into water bodies, it plays a vital role in improving the ecological environment, building beautiful rural areas, and promoting rural economic development.
Application Areas of Rural Wastewater Treatment Equipment
Underground domestic wastewater treatment systems are suitable not only for rural wastewater treatment but also for residential communities, hospitals and sanatoriums, office buildings, shopping malls, hotels, restaurants, government offices, schools, military facilities, seafood processing plants, livestock processing plants, dairy processing plants, and other sources of domestic sewage and similar industrial organic wastewater. Their primary purpose is to treat such wastewater to meet reclaimed‑water quality standards, enabling its resource‑based reuse.
Process Flow Diagram of Rural Wastewater Treatment Equipment
The WSZ‑A type equipment is primarily designed for treating domestic wastewater and similar industrial organic wastewater. Its main treatment process employs a well‑established biochemical method—the contact oxidation process. The design parameters are based on typical domestic wastewater quality, with an influent BOD of 200 mg/L and an effluent BOD of 20 mg/L. The system comprises six major components: (1) hydrolysis‑acidification tank; (2) contact oxidation tank; (3) secondary sedimentation tank; (4) disinfection tank and disinfection unit; (5) sludge storage tank; and (6) blower room and blowers.
Process Flow Description
The wastewater from the septic tank, after anaerobic fermentation, flows into the equalization basin, where it is homogenized and its flow rate is stabilized before being pumped to the Grade A anoxic tank. In this biological treatment stage, heterotrophic bacteria hydrolyze soluble organic matter in the wastewater into organic acids, breaking down macromolecular organics into smaller molecules and converting insoluble organics into soluble forms. Additionally, proteins and fats are ammonified, while the nitrified effluent returned from the secondary sedimentation tank undergoes denitrification to remove ammonia nitrogen from the water.
In the O‑level biological tank, aerobic microorganisms and nitrifying bacteria are present; these microorganisms degrade organic matter into CO₂ and H₂O. Under sufficient oxygen conditions, the nitrification process carried out by nitrifying bacteria oxidizes NH₃‑N to NO₃⁻, which is then returned to the A‑level biological tank via recirculation. In the anoxic environment, heterotrophic denitrifying bacteria reduce NO₃⁻ to molecular nitrogen. The effluent from the contact oxidation tank flows by gravity into the sedimentation tank for solid–liquid separation. After sludge settles, the supernatant from the sedimentation tank is sent to the disinfection tank, and the disinfected wastewater meets discharge standards.
Main Features of Rural Wastewater Treatment Equipment
1. Can be buried underground
2. Fully automated control, requiring no personnel supervision.
3. Simple operation and easy maintenance
4. Low noise, no odor
5. Long service life
Key Word：
Environmental protection equipment
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WhatsApp：8618737959990
Email：gqhbtop@gmail.com
Manager Liu：+8618737959990
Manager Yang：+8615037920517
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