• Shenzhen F1 Powerboat Course – Eco-friendly Palm Rock revetments with erosion resistance
  • Shenzhen Pingshan River – Clear water, green banks, beautiful scenery
  • Guangzhou Tianlong River – Palm Rock revetments integrating flood protection and ecological benefits.
Remediation of Black and Odorous Water Bodies
Clean construction, eradication of toxic sludge, rejuvenation of sediments, and natural purification through flowing water; clear waters, green shores, optimal resource use, and sustainable ecology!
  • The heavily polluted River Thames in the late 18th century
  • The River Thames after more than 50 years of restoration
  • Tokyo’s Sumida River 70 years ago
  • The Sumida River Today
Comprehensive management of black and odorous water bodies is a systematic project that requires the integration of technical means, management mechanisms, and social participation. Its core contents include the following five aspects:

Source Pollution Control: Cut off pollution input

Sewage Interception and Pipe Connection: To address the direct discharge of domestic sewage, construct a sewage collection pipe network to achieve rain-sewage diversion and prevent mixed overflow;

Non-point Source Pollution Control: Address the loss of agricultural fertilizers, livestock and poultry breeding wastewater, and initial rainwater pollution to reduce pollutants entering rivers;

Industrial Sewage Supervision: Strictly prohibit illegal discharge of industrial sewage.

Endogenous Treatment: Eliminate existing pollution

Dredging and desilting remove organic pollutants and heavy metals from sediment to reduce the release of endogenous pollution;

Safe disposal of sludge: Dredged sludge must undergo dehydration and stabilization treatment to avoid secondary pollution. Incorporate the "centralized sludge disposal" link into the treatment process to ensure sludge is recycled or rendered harmless.

Ecological Restoration: Restore the self-purification capacity of water bodies

Ecological Revetments and Aquatic Vegetation: Plant submerged and floating plants to absorb pollutants, strengthen water purification capacity, and achieve "clear water and green banks";

Water System Connection and Living Water Replenishment: Introduce living water to enhance fluidity, prevent siltation, and improve water quality in conjunction with landscape projects;

Microbial Remediation Technology: Add compound bacterial agents to degrade organic matter and quickly eliminate black odors.

Smart Supervision and Long-term Operation & Maintenance

Dynamic Monitoring and Early Warning: Apply IoT sensors to monitor water quality (e.g., ammonia nitrogen, dissolved oxygen) in real time to achieve immediate rectification of problems;

Smart Decision-Making Platform: Build an AI + big data platform, integrate data of "factory-network-river integration," optimize governance decisions, and reduce the risk of re-blackening.

Long-term Mechanisms and Public Participation

Responsibility Assigned to Individuals: Implement the "extension of the river chief system to the village level" and clarify the main body responsible for water body management and protection. Incorporate treated water bodies into the river chief management system, with regular inspections and cleaning;

Diversified Fund Guarantee: Establish financial rewards and subsidies, and explore the "governance promoted by utilization" model: Encourage contracting for water body operation, planting aquatic cash crops, or developing aquaculture to convert ecological resources into economic benefits;

Community Co-governance: Integrate residents' needs into the governance process. Adjust plans through community councils and add convenience facilities such as waterfront trails and parks to enhance public participation.

  • Pingshan River before remediation – black and odorous water quality
  • Pingshan River in the process of treatment
  • Pingshan River Today
  • The heavily polluted Thames River at the end of the 18th century
  • The Thames River, which took more than 50 years to be renovated
  • Sumida River in Tokyo 70 years ago
  • Today in Sumida River
  • Pingshan River before renovation-black and smelly water quality
  • Pingshan River under management
  • Today's Pingshan River