Shandong Ecolink Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of environmental protection equipment for sewage treatment in China, featured by quality products and good service. If you're going to wholesale high quality environmental protection equipment for sewage treatment, welcome to get more information from our factory.
Product Introduction
Sewage treatment equipment is the core equipment for solving the discharge problems of domestic sewage and industrial organic wastewater. This series of products can effectively remove COD, BOD, ammonia nitrogen, suspended solids and other pollutants, enabling the effluent to meet national Class I-A standards or reuse standards.
Compared with traditional civil concrete tank systems, our integrated sewage treatment equipment adopts a modular steel structure design, reducing construction period by 60%, reducing footprint by 50%, and can be buried underground, allowing the ground surface to be restored for landscaping or parking.
It helps buyers pass environmental acceptance with shorter time and lower cost, achieving compliant sewage discharge or reclaimed water reuse.


Product Overview
This series of integrated sewage treatment systems includes three mainstream types:
|
Equipment Type |
Applicable Scenario |
Core Process |
Effluent Standard |
|
Underground sewage treatment equipment |
Residential communities, hotels, hospitals, rural areas |
A²O + contact oxidation + sedimentation + disinfection |
Class I-B / Class I-A |
|
Membrane bioreactor (MBR) |
High-standard reuse, capacity expansion upgrades |
A²O + MBR membrane modules |
Quasi-Class IV water / reuse standard |
|
Horizontal flow dissolved air flotation unit |
Food, printing and dyeing, chemical, slaughter industries |
Dissolved air flotation |
Pretreatment compliance |
Equipment main material: Q235B carbon steel + epoxy coal tar anti-corrosion / 304 stainless steel
Control system: PLC fully automatic + remote monitoring (optional mobile terminal)
Certification: ISO 9001, CE certification, third-party testing reports available
Each sewage treatment equipment unit undergoes 48-hour full-machine water operation testing before leaving the factory to ensure it can be installed and used immediately on site.
Product Advantages
|
Process / Structural Feature |
Performance Result |
Actual Benefit for Buyers |
|
Biological contact oxidation + elastic filler |
Sludge production reduced by 40% compared with activated sludge method |
Save more than 50% of annual sludge cleaning costs |
|
Underground design + anti-corrosion coating |
Equipment can be buried underground, service life ≥20 years |
No surface land occupation, ground can be used for commercial purposes |
|
MBR membrane high-efficiency separation |
Effluent turbidity <1 NTU, bacteria removal rate >99% |
Effluent can be directly reused for landscaping, toilet flushing, car washing |
|
PLC automatic control + fault alarm |
No need for dedicated personnel on duty |
Save 30,000–80,000 RMB labor cost annually |
|
Dual blower redundancy configuration |
Automatic switching in case of single failure, no shutdown |
Avoid fines caused by failing environmental inspections |
Solutions, Product Line Planning
Typical application scenarios + recommended configurations
|
Project Type |
Treatment Capacity |
Recommended Equipment |
Supporting Products |
Commercial Value |
|
200-household rural community |
40–60 t/d |
50 t/d underground sewage treatment equipment |
Screen channel + UV disinfection |
Meets rural environmental remediation acceptance |
|
150-room hotel |
60–80 t/d |
80 t/d integrated sewage treatment equipment |
Reclaimed water reuse system |
Saves 50,000–100,000 RMB water cost annually |
|
Township clinic |
20–30 t/d |
30 t/d MBR sewage treatment equipment |
Residual chlorine disinfection + online monitoring |
Meets medical wastewater discharge standards |
|
Food processing plant |
100–200 t/d |
150 t/d air flotation + biochemical combination |
Horizontal flow air flotation unit + sludge dewatering machine |
Achieves pretreatment compliance, avoids fines |
|
Old sewage plant upgrade |
Any |
MBR membrane module replacement |
Existing tank retrofit |
No additional land required, rapid upgrading |
Why is this integrated sewage treatment system easy to sell?
Environmental protection policies continue to tighten, customers must install equipment or upgrade standards
We provide one-stop services from design → production → installation guidance → commissioning → operation training
We can assist buyers in localized project implementation, lowering customer decision-making barriers
Reassurance Section
|
Concern |
Our Response |
|
Consistency |
Each unit is produced according to fixed BOM, blower, pump, membrane brands and models are locked |
|
Minimum order quantity (MOQ) |
Starting from 1 unit, prototype projects negotiable |
|
Cost and benefits |
30% lower overall cost than reinforced concrete structures, reuse-type equipment pays back in 2–3 years |
|
After-sales |
2-year warranty, 24-hour response, remote + on-site support |
|
Certification |
ISO, CE, third-party effluent testing reports available |
|
Delivery time |
Standard models 20–30 days, customized models 35–50 days |
|
Customization |
Material changes, insulation, explosion-proof, anti-freeze, raised inspection ports available (for cold regions) |
Product Process / Technical Strength
Typical process flow diagram (underground type):
Mechanical screen → equalization tank → anaerobic tank → anoxic tank → aerobic tank (contact oxidation) → secondary sedimentation tank → disinfection tank → compliant discharge or reuse
MBR process flow diagram:
Mechanical screen → equalization tank → anaerobic tank → anoxic tank → aerobic tank (MBR membrane tank) → permeate pump suction → disinfection → reuse or discharge
Where is quality control stronger?
Welding: 100% kerosene leakage test, no false welding or leakage
Anti-corrosion: epoxy coal tar three-layer coating + curing inspection, thickness ≥300 μm
Sealing: all interfaces pressure-tested at 0.05 MPa with no leakage
Complete machine testing: 48-hour water operation before leaving the factory, with test report attached


FAQ
Q: Will sewage treatment equipment rust?
A: No. We use marine-grade anti-corrosion processes. The underground design life is 15–20 years, and above-ground models can use stainless steel materials.
Q: How long can it be used?
A: The main structure lasts more than 15 years. Wear parts such as blowers, pumps, and membrane modules can be used for 5–8 years with proper maintenance.
Q: Can it be customized?
A: Yes. Customizable: treatment capacity, material, anti-corrosion grade, control method, insulation layer, explosion-proof motor, effluent standards.
Q: How is after-sales handled?
A: 2-year warranty. Non-human damage during the warranty period is repaired or replaced free of charge. Remote video guidance is provided, and personnel can be dispatched if necessary.
Q: What is the MOQ?
A: Starting from 1 unit.
Q: How long is the delivery time?
A: Standard models 20–30 days, customized models 35–50 days.
Q: How deep can underground sewage treatment equipment be buried?
A: Standard equipment top plate is 0.5–1 meter below ground level. In cold regions, inspection ports can be raised below the frost line.
Q: Is the operating noise high?
A: ≤60 dB (soundproof cover optional). After underground installation, noise is even lower and does not affect surrounding residents.
After-sales Service and Technical Support
Response speed: solution provided within 24 hours
Warranty period: 2 years for the whole unit (excluding consumables such as membrane modules and blower belts)
Technical guidance: installation drawings, commissioning guidance, operation training
Spare parts mechanism: commonly used models in stock, urgent orders shipped within 7 days
Color/branding customization: LOGO, color, nameplate customization available
Long-term cooperation: spare parts supply, annual maintenance, upgrading and retrofitting services

CTA
If you are looking for a reliable sewage treatment equipment supplier (sewage treatment plant manufacturer), contact us to obtain:
✔ Project solutions
✔ Product quotations
✔ Technical materials
Send an inquiry now to get exclusive support
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