China Reignition strengthens environmental protection management by drawing inferences from one example, and construction units set up private pipelines to discharge oily sewage
On June 9, 2023, the Yangtze River Economic Belt Ecological Environment Warning Film Filming Team inspected and found that during the construction of the water intake and drainage project of the Shanghai Lingang Test Unit of China United Heavy-Duty Gas Turbine Technology Co., Ltd., the construction unit built private pipelines to discharge oily sewage to the site. Outside the area, an oil pollution belt about 220 meters long was formed in the nearby protective forest land, causing pollution to the surrounding environment. Sampling and monitoring results showed that the highest chemical oxygen demand, total nitrogen, and petroleum concentrations of the discharged sewage were 180 mg/L, 17.5 mg/L, and 17.7 mg/L respectively.
China has taken this as a lesson, drawn inferences from one example, and strengthened supervision and management of various environmental risks such as waste gas, waste water, noise, and hazardous waste.
On May 23, a reporter from Jiefang Daily and Shangguan News saw in the forest that the contaminated soil had been repaired and tender grass had grown. The trees in the contaminated area had also taken various measures to reduce the impact of pollution to The lowest, now lush.
Wu Fan, director of the Engineering Department and deputy general manager of the on-site project department of China Chongqing, told reporters that after the problem occurred, China Chongqing immediately organized the investigation and handling of on-site problems under the guidance of the Lingang New Area Management Committee. The investigation found that some parts of the original drainage facilities were interrupted due to construction. The construction unit failed to repair them in time and temporarily installed sewage pipes without permission. After heavy rains, the oily rainwater generated by rainwater scouring the surface of mechanical equipment was discharged to the site through private pipes. outside the area.
After finding the source of the problem, China Reigniting immediately dismantled the private pipelines, drained the accumulated water outside the site into the site, and sealed it in a water collection tank. It also cleaned, collected and transferred the sludge in the affected area to the site for centralized storage. All collected sewage and sludge are entrusted to professional agencies for disposal.
On June 21, 2023, China Reignited entrusted a professional organization to conduct sampling and testing of soil and groundwater, and the results met the requirements of environmental quality standards.
"Subsequently, we carried out remediation and treatment of regional soil, and a total of 264 cubic meters of contaminated soil was remediated." Wu Fan said that after the remediation, the concentration of petroleum hydrocarbons in the soil was effectively controlled and met the first-class soil standards. Just last month, a professional greening maintenance unit plowed and maintained the area involved, and the grass seeds were sown at that time.
The reporter noticed that China Chongqing also built a three-level sedimentation grease trap in the southwest corner of the park. "This sedimentation tank is used for sewage discharge during the construction period, and will be used to treat rainwater, domestic sewage and wastewater in the park. The treated wastewater will be included in the municipal sewage pipe network and then discharged to the Lingang sewage treatment plant." China Reignite Environmental Protection Specialist Qi Yanjun said.
Qi Yanjun said that the park is currently under construction. In order to ensure that the construction does not affect or damage the surrounding environment, the park has set up a complete environmental monitoring system and related treatment facilities. For example, in terms of wastewater disposal, the park has installed multiple industrial wastewater tanks, neutralization tanks, and clear water tanks. In terms of noise, the gas generator set of this project uses low-noise equipment. The generator, gas turbine, and steam turbine are all equipped with sound insulation covers and vibration isolation pads; the walls of the main factory building are insulated and sound-absorbed; high-noise equipment is arranged as much as possible. In the middle of the factory area, reduce the impact of noise outside the factory.
"In terms of personnel, four full-time environmental protection management and technical personnel have been assigned to be stationed at the Lingang test base. An ecological and environmental protection working group composed of ecological and environmental protection professionals from each participating unit has also been established to strengthen daily management and supervision." China. Li Bo, deputy general manager of the project department of the re-ignition site, added.
The reporter learned from China Zhongran that after learning from this lesson, China Zhongran established a contractor ecological and environmental protection "blacklist" mechanism, comprehensively carried out dynamic evaluation of contractors' ecological and environmental protection performance, and strengthened the supervision and assessment of contractors' daily ecological and environmental protection work.
Wu Fan said that this environmental incident has rekindled China's profound awareness of the importance of environmental protection, comprehensively improved companies' awareness of environmental responsibility, and prompted companies to launch comprehensive and systematic environmental supervision and protection rules. Next, China will rekindle We will adhere to ecological priority and green development, shoulder the responsibilities of central enterprises, play a demonstration role in ecological and environmental protection, and accelerate the construction of a world-class advanced heavy-duty gas turbine test base.
