2025年12月31日，由上海蓝科石化环保科技股份有限公司（简称“蓝科环保”）总承包的中沙古雷乙烯项目污水处理及回用工程顺利完成中间交接，正式迈入试运行筹备阶段。这一里程碑事件，不仅为福建省迄今一次性投资最大的中外合资石化项目筑牢环保防线，更成为“一带一路”与沙特“2030愿景”深度对接的绿色实践典范。

On December 31, 2025, the wastewater treatment and reuse project of the Sino-Saudi Gulei Ethylene Project, contracted by Shanghai Lanke Petrochemical Environmental Technology Co., Ltd. (referred to as "Lanke Environmental"), successfully completed its intermediate handover, officially entering the preparatory stage for trial operation. This milestone event has not only strengthened the environmental safeguards for Fujian Province's largest-ever single-investment Sino-foreign joint venture petrochemical project but has also become a green practice model for the in-depth alignment between the Belt and Road Initiative and Saudi Arabia's Vision 2030.

匠心筑造：120万安全工时淬炼精品工程

作为中沙石化核心公共配套设施，该污水处理系统堪称园区的“钢铁肾脏”，承接多套工艺装置排放的复杂废水，涵盖低盐RO浓水、乙烯废碱液、PC高盐废水等多工况污水，处理规模达1650m³/h。自2024年3月开工以来，蓝科团队以“专注、专业、创新、本分”的理念攻坚克难，累计完成打桩16960米、混凝土浇筑近4万立方米，安装设备382台/套、工艺管道37.5公里，敷设电缆超312公里，在实现120万安全工时“零事故”的同时，提前14天完成机械交工，连续斩获业主“最佳承包商”“优秀承包商”等多项殊荣。

As a core public utility supporting facility for the Sino-Saudi petrochemical complex, this wastewater treatment system serves as the "steel kidney" of the industrial park. It handles complex wastewater discharged from multiple process units, including low‑salinity RO concentrate, ethylene spent caustic, high‑salinity PC wastewater, and other multi‑condition effluents, with a treatment capacity of 1,650 m³/h. Since its commencement in March 2024, the Lanke team has adhered to the philosophy of "focus, professionalism, innovation, and integrity" to overcome challenges. To date, they have completed 16,960 meters of piling, poured nearly 40,000 cubic meters of concrete, installed 382 sets of equipment and 37.5 kilometers of process piping, and laid over 312 kilometers of cables. While achieving 1.2 million safe work hours with zero accidents, the project was mechanically completed 14 days ahead of schedule. The team has also been repeatedly honored by the client with awards such as "Best Contractor" and "Outstanding Contractor."

技术突围：自主创新破解石化污水治理难题

针对项目面临的多重技术挑战，蓝科环保依托300余项专利及专有技术储备，以自主知识产权工艺包实现精准破局：

●面对循环排污水硬度与碱度波动，通过动态调控工艺实时适配水质变化；

●针对膜元件易受有机物与微生物污染问题，采用强化预处理+抗污染膜材料+在线清洗的组合方案；

●创新应用高效隔油+两级生化工艺，抵御石油类对生化系统的冲击；

●研发特种耐盐菌与优化脱氮工艺，破解高含盐污水可生化性差、总氮超标的行业难题；

●采用源头密闭收集 -过程分级输送 - 末端深度净化， 全流程管控，确保废气排放指标优于国家标准。

最终实现出水水质优于国家及行业标准，水资源循环利用率高达80%，为园区绿色生产提供坚实保障。

Faced with multiple technical challenges in the project, Lanke Environmental drew upon its portfolio of over 300 patents and proprietary technologies to achieve precise breakthroughs with independently developed process packages:

●To address fluctuations in hardness and alkalinity in circulating blowdown water, dynamic adjustment processes were implemented to adapt in real time to changing water quality.

●For membrane elements prone to organic and microbial fouling, a combined solution of enhanced pretreatment, anti‑fouling membrane materials, and online cleaning was adopted.

●High‑efficiency oil separation and a two‑stage biochemical process were innovatively applied to protect the biological system from oil‑related impacts.

●Specialized salt‑tolerant bacteria were cultivated and nitrogen removal processes were optimized to overcome industry challenges such as poor biodegradability and excessive total nitrogen in high‑salinity wastewater.

●A closed‑loop approach—from sealed source collection and graded transportation to advanced end‑of‑pipe purification—ensured full‑process control, resulting in exhaust emission indicators surpassing national standards.

Ultimately, effluent quality exceeded both national and industrial standards, with water recycling reaching up to 80%, providing a solid guarantee for green production within the industrial park.

战略赋能：从工程范本到合作新篇

此次项目中交，不仅为中沙古雷乙烯项目2026年建成投用奠定关键基础，更标志着蓝科环保在大型石化园区环保配套领域形成可复制、可推广的解决方案。作为公司首次海外EPC合作的里程碑项目，其成功实践进一步深化了中沙绿色产业合作共识，为两国高质量共建“一带一路”注入新动能。

秉持“通过技术创新成就客户”的使命，蓝科环保将持续以“能源与化工行业绿色工艺及环境治理一体化方案提供商”的定位，在试运行阶段全力推进联动试车与智能运维平台搭建，让自主创新技术在更多重大工程中绽放光彩！

The intermediate handover of this project not only lays a crucial foundation for the completion and commissioning of the Sino-Saudi Gulei Ethylene Project in 2026 but also signifies that Lanke Environmental has developed replicable and scalable solutions in the field of environmental supporting facilities for large-scale petrochemical parks. As a milestone project marking the company’s first overseas EPC collaboration, its successful implementation further deepens the consensus on green industry cooperation between China and Saudi Arabia, injecting new momentum into the high-quality joint construction of the Belt and Road Initiative by the two countries. Guided by its mission of "empowering clients through technological innovation," Lanke Environmental will continue to uphold its positioning as a "comprehensive solution provider for green processes and environmental management in the energy and chemical industries." During the trial operation phase, the company will fully advance integrated commissioning and the establishment of an intelligent operation and maintenance platform, allowing its independent innovative technologies to shine through in more major projects!