20 m3 Leachate Tanks Made in China: Corrosion-Resistant Storage / Storage Tanks Manufacturer

20 m3 Leachate Tanks Made in China: Corrosion-Resistant Storage

A 20 m3 leachate tank stores corrosive landfill leachate, often below pH 2, in a compact vessel built for harsh chemistry. Made in China by Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel), the Glass-Fused-to-Steel (GFS) version fuses enamel at 820-930°C to a 0.25-0.45 mm layer designed to AWWA D103-09 and ISO 28765, exported to 100+ countries since 2008.

What a 20 m3 Leachate Tank Is

A 20 m3 leachate tank is a small bolted vessel holding roughly 20 cubic meters of landfill or industrial leachate, a stream often acidic below pH 2 and high in COD and ammonia. In Glass-Fused-to-Steel (GFS) form, the interior carries vitreous enamel fused at 820-930°C to a 0.25-0.45 mm inert layer that withstands the aggressive chemistry painted steel cannot survive.

Volume: about 20 m3.

Stream: pH<2, high COD.

Layer: 0.25-0.45 mm enamel.

Edge: beats painted steel.

Key Characteristics, Components, and Types

Compact GFS leachate tanks use bolted panels with 8.8-grade fasteners, a sealed or vented roof, and manways and flanges for transfer. Alternatives are small FRP or rubber-lined steel, but GFS offers a monolithic inert surface at low volume. Standard grades tolerate pH 1-14 special, and the tank ships flat-packed from China for fast local assembly.

Panels: bolted, 8.8-grade.

Roof: sealed or vented.

Grade: pH 1-14 special.

Ship: flat-packed from China.

Applications and Operating Conditions

They serve landfills, transfer stations, and industrial sites needing interim leachate storage before treatment. A 20 m3 tank buffers collection-truck deliveries or equalizes pH before the main plant. Because leachate is aggressively acidic and ammonia-rich, the GFS enamel’s inertness is the reason the tank lasts 30-50 years instead of corroding within seasons.

Sites: landfill, transfer, industry.

Use: buffer or equalize.

Why: inert enamel.

Life: 30-50 years.

Technical Considerations

Specify the leachate pH (often <2), temperature (5-45°C), and COD or ammonia load; set enamel DFT at 0.25-0.45 mm. The shell is calculated to AWWA D103-09 and ISO 28765, plates blasted to Sa 2.5 and holiday-tested at 1500 V. Even at 20 m3, inlet, outlet, and ventilation follow the same code discipline as large tanks, and liner grade is confirmed against the measured pH.

pH: often <2.

Temp: 5-45°C.

Coat: 0.25-0.45 mm DFT.

Test: 1500 V per m2.

Advantages and Limitations

A 20 m3 GFS leachate tank resists pH<2 corrosion and erects fast from a China supply with a 100+ country record. The limitation is chemistry: very high COD or ammonia may need a special enamel grade, confirmed during design rather than assumed. This boundary is a specification step, because the wrong grade shortens life in the harshest leachate.

Advantage: pH<2 resistant, fast.

Advantage: 100+ country record.

Limitation: special grade for extremes.

Boundary: confirm grade in spec.

Design Parameters

The figures below are the load-bearing values a China supplier should quote per leachate tank. They let an engineer confirm the shell, coating, and joint system before steel is ordered for a corrosive-duty vessel.

Design parameter |
Typical value or range |
Why it matters |

Capacity range |
20-5,000 m3 |
Small to mid storage |

Enamel DFT |
0.25-0.45 mm |
Acid pH<2 defense |

Fusion temperature |
820-930 °C |
Enamel bond |

Holiday test |
1500 V |
Every panel checked |

Operating temperature |
5-45 °C |
Leachate range |

pH tolerance |
1-14 special |
Confirm grade |

Design life |
30-50 years |
With inspection |

Bolt grade |
8.8 |
Joint integrity |

Code basis |
AWWA D103-09 / ISO 28765 |
Design authority |

Limitation to check |
COD and ammonia |
Confirm lining grade |

Comparison and Selection Guide

Against small FRP and rubber-lined steel, a Glass-Fused-to-Steel (GFS) leachate tank wins on a monolithic inert surface for pH 1-14 special. Use the table to match the material to leachate chemistry, footprint, and required life.

Best Practices: Buying from China

Send the leachate analysis (pH, COD, ammonia), require the ISO 28765 calculation, the 1500 V holiday test, and a coating log. Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel) issues drawings, NDE records, and inspection packages per tank, supporting audit and financing for China-sourced leachate tanks worldwide.

Send: pH, COD, ammonia.

Require: ISO 28765 and 1500 V.

Log: coating thickness.

Package: drawings plus NDE.

Conclusion

A 20 m3 leachate tank made in China is a corrosion-chemistry decision first. Specify the enamel grade for pH<2, the code math, and the test proof, and the small tank outlasts painted steel by decades.

Frequently Asked Questions (FAQ)

What is a 20 m3 leachate tank?

A compact GFS vessel of about 20 m3 that stores acidic landfill leachate, often below pH 2, with an inert enamel lining for a 30-50 year life.

Why GFS for leachate?

The enamel resists pH 1-14 special grades; painted steel corrodes quickly in the aggressive, ammonia-rich stream.

Which standard applies?

The shell is designed to AWWA D103-09 and ISO 28765, with plant control under ISO 9001 and ISO 45001.

How is the coating verified?

Steel is blasted to Sa 2.5, the enamel is applied to 0.25-0.45 mm DFT, and holiday-tested at 1500 V per square meter.

Is China supply reliable?

Center Enamel has exported since 2008 to 100+ countries, with drawings, NDE records, and inspection packages per tank.

Can it be customized?

Yes. Enamel grade, roof, nozzles, and ventilation are engineered per leachate analysis, with drawings issued per tank.

Key Takeaways

Leachate needs enamel graded for pH<2 (1-14 special).

GFS outlasts painted steel in acidic leachate.

Require ISO 28765 plus a 1500 V holiday test.

China supply (Center Enamel) carries a 100+ country record.

20 m3 Leachate Tanks Made in China: Corrosion-Resistant Storage