Product Description
Introducing the QDPP Integrated Sewage Treatment Equipment
I. Product Definition
The QDPP Integrated Sewage Treatment Equipment stands as a beacon of innovation from Zhong Qiao Enlightenment. Crafted using cutting-edge high-molecular materials, this equipment boasts unparalleled durability through its seamless, single-piece tank formation. Our pioneering R&D team has triumphantly overcome design challenges, refining Western technological paradigms to cater specifically to the unique sewage treatment needs of rural China. This endeavor has birthed an adaptable suite of integrated solutions, such as the Zhong Qiao Tank Horizontal Tank A/B, Vertical Tank A/B, and the groundbreaking Hollow Tank, all epitomizing excellence and ingenuity.
II. Superior Raw Materials
Opting for high-modulus polypropylene as the cornerstone of our subterranean drainage and wastewater solutions showcases our commitment to quality. With an elastic modulus soaring to ≥1500 MPa, it undeniably eclipses HDPE's 800 MPa, ensuring exceptional ring stiffness and robust structural integrity, which are imperative for high-performance applications.
Polypropylene is celebrated for its non-toxic and odorless qualities, complemented by a highly crystalline structure and an ultra-light density of 0.90-0.91 g/cm³. Its unparalleled water stability is reflected in a negligible 0.01% absorption rate. Furthermore, with molecular weights ranging between 80,000 to 150,000, polypropylene ensures superior molding capabilities and a lustrous, attractive finish, making it a preferred choice for a variety of applications.
Demonstrating remarkable chemical stability, polypropylene withstands numerous chemical agents, although caution is advised against concentrated sulfuric and nitric acids. It may interact with select hydrocarbons, yet its enhanced crystallinity amplifies its chemical resilience, establishing it as the ideal material for crafting resilient, corrosion-resistant components in various applications.
Polypropylene, non-toxic and odor-free, surpasses low-density polyethylene with greater strength, stiffness, and heat resistance, proving optimal near temperatures of 100°C. It offers outstanding dielectric properties and maintains high-frequency insulation independent of moisture, making it a versatile material for numerous industrial and commercial uses.
Broadly resistant to common acids, bases, and organic solvents, polypropylene is superb for applications in food-grade utensils, where safety and durability are paramount.
PPH, a high molecular weight, low melt flow homopolypropylene, benefits from β-modification, resulting in a finely crystalline structure that enhances its chemical and temperature endurance, creep resistance, and impact resilience at low temperatures, making it ideal for high-demand environments.
III. Distinctive Characteristics
1. Safety First
The tank is manufactured using a spiral extrusion winding-one-time forming technology. The tank is formed directly from granular raw materials through molds, achieving a seamless, one-piece structure.
2. Durability |
The raw materials include UV-resistant and anti-aging additives, addressing the issue of short outdoor service life for plastic equipment and significantly extending its lifespan.
3. Economic Efficiency |
The tank can have a thickness of over 80 mm, with a tapered cross-section. The thickness can be increased in areas with greater stress at the lower part of the tank, optimizing the use of materials where needed.
4. Corrosion Resistance
It exhibits excellent resistance to various acids and bases and can store most organic and inorganic acids, bases, salts, and some organic solvents (see the corrosion data sheet for details).
5. Flexible and Convenient Installation Lightweight, easy to install and maintain, non-toxic, non-scaling, and non-contaminating. It is user-friendly, customizable according to customer needs, and allows for flexible overall installation. 6. Wide Application Range |
Our equipment is meticulously tailored to cater to a broad spectrum of industries, ranging from wastewater management,
air pollution mitigation, the burgeoning lithium battery sector, chemical processing, metallurgy, electroplating,
textile manufacturing, dye industries, environmental conservation, oil refinement, electronics, pharmaceuticals, food processing, oil extraction, light industry, acid production, acid cleaning, and
battery material manufacturing, underscoring the equipment's versatile and comprehensive applicability.
IV. Aesthetic and Functional Design
Equipment Color Scheme: Primarily light gray, with customizable color options available to accommodate diverse aesthetic preferences and enhance visual appeal.
Structure Variants: Offered in both solid wall and hollow configurations to address specific application requirements, ensuring adaptability and performance.
V. State-of-the-Art Production Process
Our QDPP Integrated Sewage Treatment Equipment is expertly manufactured using an innovative one-time molding and multi-winding process. Wall thicknesses range from 10-80 mm, with the multi-winding technique involving a strategic layering sequence of base, cooling, and crystallization, followed by stress-relief and reheating before additional winding. This meticulously tailored method is adjusted based on tank joint specifications and structural needs, ensuring precision and reliability.
VI. Expert Welding Process
Our state-of-the-art external welding process is the epitome of precision and strength, utilizing cutting-edge imported automatic extrusion welding machines. This revolutionary technology facilitates the creation of expansive, robust welds in the tank's most stress-prone areas, achieved with unmatched seamlessness in a single operation. By employing pristine PPH pellets, congruent with the tank's material, these are expertly thermally fused at the seams, forging an indestructible and cohesive bond with both the tank's bottom and body, ensuring unparalleled durability.
Distinguished Characteristics:
1. Our advanced, highly mechanized process promises unparalleled stability and consistency in product quality, driven by superior automation.
2. The weld seams are meticulously designed to align with the product's stress dynamics, ensuring optimal structural integrity and reliability.
3. Our product showcases exceptional structural integrity, with welds seamlessly integrated into the tank. This integration provides superior corrosion resistance and flawless leak-proof performance, setting a new standard in durability.
4. Enjoy reduced flash with impeccably smooth, aesthetically refined seams that enhance both function and form.
5. Infused with UV absorbers, our PPH pellets are engineered for longevity, effectively combating aging and significantly prolonging the product's service life.
Precision Internal Welding
Our internal welding process stands as a cornerstone of our manufacturing excellence, utilizing advanced automatic long-arm extrusion welding technology. While mirroring the principles of our external welding, this unique step employs specialized equipment to integrate new PPH pellets with the tank's interior weld seams. This creates a steadfast and robust union with the tank's bottom and body, further enhancing the product's reliability and strength.
Impeccable Characteristics:
1. Our process is distinguished by advanced mechanization and automation, ensuring consistent and superior product quality.
2. Weld seams are thoughtfully designed to align with the product's stress profile, boosting structural integrity and long-term reliability.
3. The product demonstrates outstanding integrity, with welds seamlessly incorporated into the tank, delivering excellent resistance to corrosion and ensuring leak-free performance.
4. Enjoy the benefits of reduced flash and delightfully smooth, aesthetically pleasing seams that enhance both appearance and functionality.
5. Enhanced with UV absorbers, the PPH pellets are tailored to resist aging, significantly extending the product's lifespan and robustness.
VII. Key Advantages
VIII. Unique Features
High Ring Stiffness: Expertly crafted from premium high-modulus polypropylene, boasting an impressive elastic modulus of up to 1850 MPa. The harmonious blend of the winding structure and inner wall culminates in a scientifically sound design, ensuring exceptional sealing and impeccable leak prevention. Our sophisticated Hot-Winding Forming Process assures the highest quality of melt seams. By integrating socket and spigot with welded joints through electric fusion welding, we create a sealed plastic pipe system that acts as an impenetrable barrier, safeguarding the soil from harmful contaminants. Our commitment delves deeper than mere surface cleanliness, championing environmental protection deep beneath the ground.
Performance Parameters you can trust
Polypropylene (PPH) Performance Table |
Item |
Typical Value |
Unit |
Test Method |
Density |
905 |
k/m3 |
ISO 1183 |
Melt Flow Rate (230°C/2.16 kg) |
0.3 |
g/10 min |
ISO1133 |
Melt Flow Rate (190ºC/5.0kg) |
0.6 |
g/10 min |
ISO 1133 |
Yield Stress (50 mm/min) |
36 |
MPa |
ISO 527-2 |
Yield Strain (50 mm/min) |
10 |
% |
ISO 527-2 |
Tensile Modulus (1 mm/min) |
1650 |
MPa |
ISO 527-2 |
Charpy Impact Strength, Notched (+23°C) |
7 |
KJ/m² |
ISO 179/1eA |
Notched Impact Strength (-20°C) |
2 |
KJ/m² |
ISO 179/1eA |
Vicat Softening Temperature B (50N) |
95 |
ºC |
ISO 306 |






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Please provide your project data so that we can design equipment that better meets your requirements
Processing parameter requirement |
Parameters/Index
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Inflow water quality mg/L(ppm) |
Outflow water requirement mg/L(ppm) |
COD |
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BOD |
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TSS |
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Ammonia nitrogen |
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TN |
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TP |
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PH |
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E.coli |
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Others |
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Water flow |
m³/d |
On/Underground |
If underground,pls indicate the depth |
If integrated with control room |
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Appearance requirement |
Simple appearance, container appearance, Zhong qiao container appearance, please refer to our brochure for details |
Voltage, HZ, Electric phase |
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Distance between regulating pool and equipment |
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Flange interface specifications |
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Special requirements |
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