1. Basic Introduction​

As environmental rules get stricter, integrated sewage treatment equipment is widely used in SMEs, rural areas, and scenic spots. It combines pretreatment, biochemical reaction, sedimentation, and disinfection into one system, solving problems of traditional facilities like large space needs and long construction time.​

2. How It Works (4 Key Stages)​

• Pretreatment: Grids and grit chambers remove big impurities (e.g., sand) to protect later parts.​

• Biochemical Reaction: Uses processes like MBR, SBR, or AO/A²O. Microorganisms break down pollutants (COD, BOD, ammonia nitrogen).​

• Sedimentation & Filtration: Sludge and clean water separate; some equipment adds ultrafiltration to improve water quality.​

• Disinfection: UV or chlorine dioxide kills bacteria/viruses, ensuring water meets discharge standards.​

3. Main Advantages​

• Saves space: Only 1/3-1/5 of traditional facilities.​

• Fast installation: On-site work takes 1-2 weeks (vs. 3-6 months for traditional ones).​

• Low cost: Auto-run (no 24/7 staff) and energy-saving (15%-30% less energy).​

• Stable effect: High pollutant removal rates (COD >85%, BOD >90%, ammonia nitrogen >95%).​

• Wide use: Fits different water volumes (5-500m³/d) and types (domestic, industrial, medical sewage).​

4. Key Application Scenarios (with Cases)​

• Rural areas: In a village in Jiangsu Province, 5 sets of 10m³/d equipment were installed to treat sewage from 200 households. The effluent is used to water 50 mu of vegetable fields, avoiding pollution of nearby rivers.​

• SMEs: A small food processing factory in Guangdong uses an AO-process equipment (20m³/d) to treat wastewater from soybean product production. It costs only 800 yuan/month in operation, meeting local discharge standards.​

• Public places: At a highway service area in Shaanxi, a mobile integrated device (30m³/d) was deployed. It treats 20,000L of sewage daily from restaurants and restrooms, with effluent reused for lawn irrigation.​

• Medical facilities: A town clinic in Sichuan adopted a dedicated medical sewage equipment (5m³/d). It uses enhanced chlorine dioxide disinfection to kill 99.9% of pathogenic bacteria, complying with medical wastewater standards.​

• Emergencies: After a flood in Henan, 10 sets of emergency integrated equipment (50m³/d each) were quickly set up in temporary resettlement sites, handling 500m³ of sewage daily to prevent epidemic spread.​

5. Simple Selection Tips​

• Know your needs: Water volume, pollutant types, and discharge standards.​

• Choose the right process: MBR for high water quality; AO/A²O for domestic sewage.​

• Check space: Pick underground/ground models based on site.​

• Pick qualified suppliers with good after-sales service.​

6. Future Trends​

• More intelligent: IoT for real-time monitoring and remote control.​

• Resource reuse: Treated water for irrigation; sludge turned into fertilizer.​

• Low-carbon: Uses energy-saving parts (e.g., solar aeration) to cut carbon emissions.