Sustainable River Basin Management
Pilot Innovations

Applied Environmental & Climate Projects

RIWEM designs and implements pilot initiatives addressing severe environmental risks, combining engineering breakthroughs with community-level operational systems.

900M Total Funding (KRW)
2 Active Pilot Cases
Ninh Binh Primary Location
2022-25 Program Span
Case Study 2

Purification of Lake using Environmentally-Friendly Dredging System & Nano-Bubble

Restoring delicate lakebeds and natural oxygen levels in Ninh Binh, Vietnam without disrupting the aquatic ecosystems.

Project Specifications

Implementers NTQ & RIWEM
Budget KRW 600 Million
Sponsor Korea Public Procurement Service
Location Ninh Binh, Vietnam
Duration 2024 - 2025

Advanced Bottom Restoration Loop

Traditional dredging stirs up heavy layers of silt, releasing toxic sulfides and metals back into the water column. The RIWEM system utilizes custom mechanical hoods to scrape, vacuum, and scrub the lake floor cleanly:

1

Heavy Scrapers & Brushes

Mechanical sweeps physically break down hard sludge layers down to a maximum operational depth of 20 meters.

2

Confounding Air Jet Nozzle

Injects localized compressed air loops to isolate loose sediments beneath the suction hood.

3

Surface Nano-Bubble Injection

Reoxygenates the lake floor with micro-bubbles, sparking rapid biological restoration and breaking down toxic organic compounds.

Schematic of the Environmentally-Friendly Dredging System & Nano-Bubble layout
Case Study 3

Commercialization of IoT-based Block Assembly Type Rainwater Storage Infiltration Tank

Mitigating urban flooding while replenishing local aquifers using modular block assembly grids in Vietnam.

Collage of block assembly installation, containerized control room, and finished plant site

Project Specifications

Implementers Hangil Industrial Co. Ltd & RIWEM
Budget KRW 300 Million
Sponsor KEITI (Korea Environmental Industry & Technology Institute)
Location Vietnam
Duration 2022 - 2023

Smart Subterranean Storage Grids

Rapid urban sprawl in Vietnam reduces natural soil surface area, leading to severe localized flooding. This system utilizes assembly crates buried beneath landscaping to hold water and recharge the groundwater layer:

1

Block Assembly Crates

Modular high-density plastic block structures assembled on-site to create custom subterranean storage volumes.

2

Containerized Control & Purifier Room

A compact surface container houses pressure control systems, UV filtration grids, and digital level analyzers.

3

Smart IoT Flow Monitoring

Continuous telemetry on water levels, pump discharge pressure, and recharge rates, readable via cloud systems.

Interactive Diagnostics

Project Impact Estimator

Calculate environmental outcomes of implementing Lake Dredging loops or Rainwater Infiltration storage blocks based on your site parameters.

Lake Bottom Surface Area 10,000 m²
Average Silt Layer Depth 0.8 m

Estimated Outcomes

Est. Sediment Removed 8,000 m³
Turbidity Improvement +86%
Active Water Volume Restored 8,000,000 L

Cooperate on Climate Adaptability Projects

We partner with global technology consortia, public departments, and NGOs to run targeted municipal water purification and storage pilots.

Submit Pilot Proposal