Modular Stormwater Detention Systems for Rainwater Control

Modular stormwater detention systems store peak runoff underground and release it at a controlled rate to protect downstream drainage capacity.

For wider planning context, consult the U.S. EPA green infrastructure guidance.

Super cost-effective

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Underground Stormwater Tanks

Size: 1000 x 100 x 500mm
Material: 100% Recycled PP
Load Capacity: 45T/sqm
Tanks: 2 tanks/cbm
Void ratio: 95%
Water Storage: 475L/tank
Weight: 20kgs/tank

modular stormwater detention, rainwater cistern, underground stormwater tanks

Optimize Your Rainwater Management with Modular Stormwater Detention and Rainwater Cistern Solutions

The Rainwater Cistern, composed of PP (polypropylene) modules, represents a cutting-edge approach to rainwater collection and management. These underground stormwater tanks are designed to be installed beneath public areas such as city squares, green belts, and parking lots. Their primary function is to temporarily store rainwater during peak flow periods, gradually releasing it afterward to prevent flooding and promote water recycling.

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Soakaway Crates, Polypipe Polystorm Cells
A quarter of the modules between the two layers are stacked in a cross, which forms a horizontal and vertical interlocking system, safe and reliable!
modular stormwater detention, rainwater cistern, underground stormwater tanks

Core Features and Benefits

Effective Rainwater Management: The Rainwater Cistern helps mitigate rainwater flood peaks by temporarily storing excess rainwater and slowly discharging it after peak flow. This process not only prevents flooding but also facilitates rainwater recycling and reduces initial rainwater pollution in receiving water bodies.

Versatile Installation: Underground Stormwater Tanks cover large areas, making them suitable for various urban settings. Their flexible design allows for installation in public spaces without disrupting the surface use.

Self-Cleaning Mechanism: While particulate impurities in rainwater can settle in the storage tank, the system incorporates retaining and self-flushing devices, such as flushing doors, to maintain cleanliness and functionality with minimal manual intervention.

Robust Construction: A unique interlocking system, where a quarter of the modules between two layers are stacked in a cross pattern, ensures a safe and reliable structure. This horizontal and vertical interlocking system provides enhanced stability and durability.

Modular Stormwater Detention Design Workflow

  1. First, confirm the contributing catchment area.
  2. Next, define the required design storm.
  3. Then, calculate the peak inflow rate.
  4. Afterward, set the permitted discharge rate.
  5. Meanwhile, check groundwater and utilities.
  6. Moreover, confirm excavation and cover depth.
  7. For example, verify vehicle load zones.
  8. Therefore, calculate the detention volume.
  9. Consequently, arrange the modular tank footprint.
  10. In addition, provide inspection access.
  11. Finally, document the maintenance schedule.
modular stormwater detention, rainwater cistern, underground stormwater tanks

Sponge City Project Case Study - Modular Stormwater Detention

The construction of a "sponge city" involves a cycle process crucial for effective urban water management. The "storage" principle in a sponge city entails retaining and storing rainwater to achieve multiple objectives, including mitigating peak flows and enhancing water harnessing efficiency.

Advantages of PP Modular Stormwater Detention Tanks

  1. Flood and Rainwater Peak Management: Efficiently manages rainfall peaks and flood peaks, improving urban resilience to heavy rainfall events.
  2. Natural Rainwater Purification: Establishes a sponge-like drainage purification system that enhances the natural water cycle and improves water quality through natural filtration processes.
  3. Flexible and Customizable Construction: The modular design allows for various types of rainwater storage tanks to be constructed according to specific site requirements and conditions.
  4. Cost-Effective Purification: Assists in purifying rainwater naturally, reducing subsequent purification costs and contributing to overall water management efficiency.

Application and Use Cases

  • Urban Public Areas: Ideal for installation beneath city squares, green belts, and parking lots to manage stormwater without affecting surface usability.
  • Residential and Commercial Complexes: Effective in managing rainwater in housing complexes and commercial areas, preventing local flooding and enhancing water recycling.
  • Sustainable City Projects: Key component in developing sustainable and resilient urban infrastructure, particularly in sponge city initiatives.
modular stormwater detention, rainwater cistern, underground stormwater tanks

Tags:
Rain Tank
Rainwater Cistern
Underground Stormwater Detention Tanks
Large Water Storage Tanks
Rainwater Infiltration Module
Module For Stormwater Retention & Detention | Stormtank
Modular Rainwater Storage System
Detention / Retention / Infiltration / Underground Stormwater Storage System

Quick project answers

Stormwater detention and cisterns: key distinctions

Detention and rainwater storage use similar underground volume but serve different operating goals. Detention controls runoff discharge, while a cistern retains water for planned reuse.

Can one modular tank support detention and reuse?

A combined arrangement may be possible when dedicated storage zones, overflow, controlled discharge, pumps and operating levels are defined by the project designer.

What information should be supplied for review?

Provide the detention and reuse volumes, inflow and discharge criteria, footprint, depth, surface load, inlet and outlet levels, water-use plan and project drawings.

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