Qinghai-Tibet Railway (Xining, Qinghai to Lhasa, Tibet) is the longest plateau railway in the world, crossing the magical and clean Qinghai-Tibet Plateau. People are worried that it will bring hidden worries to the fragile environment of the "plateau pure land" while galloping with graceful posture.
Different from ordinary trains, trains entering Tibet have taken a series of environmental protection measures to ensure zero discharge of domestic sewage and pollutants.
The toilet on the train is specially made. The Qinghai-Tibet Railway is not allowed to defecate along the way outside the train. The toilet on the train adopts vacuum defecation collection device, and the wastewater has special recycling equipment.
The relevant person in charge of the Transportation Bureau of the Ministry of Railways said that the feces were collected in the sewage box hoisted under the car through the vacuum toilet and the connecting pipeline system, and the volume of the sewage box could meet the requirement of continuous operation for 42 hours without discharge. The wastewater is collected to the sewage pool through the drainage pipe system, which can meet the requirement of continuous operation 18 hours without discharge. The toilet stool collector adopts vacuum type, and the new vacuum extractor solves the influence of plateau low pressure on the vacuum degree, vacuumizing time and flushing cycle of the toilet stool collector system.
In addition, in Golmud Station, sewage pumping and garbage recovery should be concentrated. After the sewage tank, sewage tank and garbage bin are emptied, they will enter the Golmud section for operation, which can completely ensure zero discharge of sewage and dirt.
Trains use special garbage compressors to treat other garbage, which can ensure that the environment along the way is not polluted by garbage.
Environmental protection design and construction to solve ecological problems
Qinghai-Tibet Plateau is the birthplace of many rivers, and its ecological environment is primitive, unique and fragile. The Central Committee of the Communist Party of China and the State Council clearly stated that the Qinghai-Tibet Railway should cherish everything on the plateau. The Ministry of Construction of Qinghai-Tibet Railway signed the first environmental protection responsibility letter in the history of railway construction in China with the governments of Qinghai Province and Xizang Autonomous Region.
According to Huang, commander of the Qinghai-Tibet Railway Construction Command, the investment in environmental protection of the Qinghai-Tibet Railway alone exceeds 1 10 billion yuan, which is close to 5% of the total investment. At present, it is one of the railway projects with the largest investment in environmental protection in China, and environmental supervision is introduced for the first time in the construction of national key projects.
Li Jincheng, chief designer of the Qinghai-Tibet Railway, said that in nature reserves, the railway line follows the principle of "taking as few detours as possible", and the site selection of the construction site, service road and gravel yard has been determined through repeated reconnaissance, so as to avoid damaging vegetation as much as possible.
Ba, deputy secretary of the State Committee of Haixi Mongolian and Tibetan Autonomous Prefecture in Qinghai Province, witnessed the two constructions of the Qinghai-Tibet Railway. He said with deep feelings: "Where the railway was built before, the vegetation was destroyed. During the construction of the Qinghai-Tibet Railway, fixed-point sand mining was carried out, and the ecological environment along the line was kept quite intact! "
In order to restore the vegetation on the railway land, researchers have carried out research on vegetation restoration and reconstruction in the plateau frozen soil area, and adopted advanced technology to make the survival rate of plant trial planting reach more than 70%, which is more than twice as high as the natural survival rate. These measures have been widely praised by the international community.
In order to ensure the normal life, migration and reproduction of wild animals, 33 wildlife passages have been established along the Qinghai-Tibet Railway. In the summer of 2002, when the national rare wild animal Tibetan antelope moved to give birth, the relevant construction units took the initiative to stop work to make way for it. In the construction of wildlife passage, the living habits and migration laws of wildlife along the route should be fully considered to ensure the normal life, migration and reproduction of wildlife.
Li Jincheng said that the Qinghai-Tibet Railway has 25 wildlife passages in Bei Tang and 8 wildlife passages in Donnan. For mountains and mountain fauna, people crossing tunnels mainly seek swords. Hey? Hey? Strontium sea gluttony? model