近日，中国海洋工程咨询协会推介了2024年海洋生态修复创新适用技术成果35项，我所环境技术研究室申报的“微生态活水生态净化与多营养级海水养殖尾水生态修复技术”和“藻基微颗粒复合高效净污菌群水生态修复技术”成功入选，标志着我所在海洋、河湖水体生态修复领域的技术研发与成果转化取得重要进展，具有良好的示范和推广效应。

微生态活水生态净化与多营养级海水养殖尾水生态修复技术简介

针对海水养殖尾水长期无序排放，造成养殖片区及近海岸生态系统遭受破坏等问题，该技术采用原位生态修复理念恢复系统生态自净功能。工艺含两部分环节，分别为：微生态活水生态净化工艺段与多级营养协同净化工艺段。微生态活水生态净化工艺段以微生物的降解功能为技术核心，辅助推流曝气设备，强化系统对氮、磷等污染物的去除，进而改善生态系统。多级营养协同净化工艺段发挥微生物与藻类、滤食性动物等环节的协同作用，在水体中构建多级营养协同效应，发挥微生物与动植物对水体净化的生态效应，可实现低运行成本条件下的系统稳定运行。此外，发挥微生物、大型海藻、滤食性动物的固碳能力，生态修复同时实现多重系统固碳功能。该技术适用性强，可应用于我国沿海各类海水养殖零散或集中片区及近海岸的水体生态修复。

藻基微颗粒复合高效净污菌群水生态修复技术简介

以改性后的藻基矿物为核心，将复合净污微生物菌群高效负载于藻基矿物，形成微颗粒复合净污菌群制剂，强化其协同净污作用，用于原位快速净化水质，持久提升水体自净能力，恢复生态功能，技术具有安全高效、操作简单、成本低、无二次污染等特点。适用于城市及村镇黑臭水体治理，河道、坑塘、湖泊等的水质提升及生态修复、污水处理、海水养殖尾水处理及养殖区生态修复等领域。

Our Chinese partner, Tianjin Desalination Institute, has been recognized for their remarkable contributions by receiving two prestigious technological achievement awards. These include the successful inclusion of their innovative technologies in the 2024 Ocean Ecological Restoration Innovative and Applicable Technology Achievements list, promoted by the China Ocean Engineering Consulting Association. This milestone marks significant progress in their technical R&D and achievement transformation in the field of marine and inland water ecosystem restoration, demonstrating exceptional potential for demonstration and promotion. Below are the details of these award-winning technologies:

Micro-Ecological Active Water Ecological Purification and Multi-Trophic Seawater Aquaculture Tailwater Ecological Restoration Technology

This technology addresses the long-standing issue of unregulated discharge of seawater aquaculture tailwater, which has caused ecological damage to aquaculture zones and coastal ecosystems. By employing an in-situ ecological restoration approach, the system aims to restore the ecosystem's self-purification functions through two main processes:

1.Micro-Ecological Active Water Purification Process:
Utilizing microorganisms' degradation functions as its core technology, supported by propulsion aeration devices, this process enhances the removal of pollutants such as nitrogen and phosphorus, thereby improving the ecosystem.

2.Multi-Trophic Nutrient Synergistic Purification Process:
This process establishes a synergistic effect between microorganisms, algae, and filter-feeding animals in the water, achieving sustainable and low-cost operation. Additionally, the combined carbon sequestration capacity of microorganisms, macroalgae, and filter-feeding animals enables ecological restoration while achieving multiple system carbon fixation goals.

This technology is highly versatile and can be applied to scattered or concentrated seawater aquaculture zones and coastal waters across China's coastal regions for ecological restoration.

Algae-Based Micro-Particle Composite High-Efficiency Pollutant-Degrading Microbial Community for Water Ecological Restoration

This innovative approach centers on modified algae-based minerals, which effectively load a composite pollutant-degrading microbial community onto algae-based minerals, forming a micro-particle composite pollutant-degrading preparation. It significantly enhances synergistic pollutant degradation, enabling rapid in-situ water purification, prolonged self-purification capabilities, and ecological function restoration.

Key Features:

·Efficient and Safe: Operates with minimal environmental impact and avoids secondary pollution.

·Simple and Cost-Effective: Easy to deploy, ensuring wide applicability.

Applications include:

·Urban and rural black and odorous water body treatment.

·Water quality improvement and ecological restoration of rivers, ponds, and lakes.

·Wastewater treatment, seawater aquaculture tailwater treatment, and ecological restoration of aquaculture zones.

Significance

These innovative technologies represent a breakthrough in ecological restoration, offering sustainable and scalable solutions to mitigate the environmental challenges posed by aquaculture and urban water bodies. The recognition of these achievements underscores Tianjin Desalination Institute's leadership in developing cutting-edge solutions for marine and freshwater ecosystem management.