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Beijing five major river water were exceeded urban high direct discharge of sewage
2013 年 7 29, Qinghe, drain stench of sewage discharged pollutants floating in the river. Beijing News reporter Xue Jun photo
Beijing News Recently, the Environmental Protection Department of Environmental Protection inspection center in North China Beijing surface water environmental quality inspectors, the results show that Beijing city are present downstream of the water pollution. Beijing city's five major river systems in the investigation of the 50 rivers, in addition to nine water, the river water quality roads exceeded.
37 rivers exceeded all sampling and testing
reporter from the Ministry of Environmental Protection Environmental Protection inspection center in North China learned that this is the first time that the inspection center in Beijing to conduct a comprehensive inspection of the river. The scope of the investigation involving the Yongding River, Great River, North Canal, Chaobai and Jiyunhe five major river systems of 50 rivers (ditch), including Fangshan, Fengtai, Daxing, Tongzhou and Pinggu and other five counties, covering Beijing southern and eastern parts of all the water in all rivers.
North China Environmental Protection Supervision Center with the "situation is not optimistic" to describe the results of the survey. "Surface water pollution in Beijing is to highlight the problem, strictly speaking, than the problem of air pollution is more serious." The official said.
by the Center for 37 river site sampling, test results exceeded all, some very serious pollutant level exceeds the river. Among them, the North Canal Garonne river into the small of a ditch, water quality monitoring results show that chemical oxygen demand, ammonia nitrogen and total phosphorus exceeded 94.75 times, 75.5 times and 26 times.
see from the types of pollutants, the most polluted in ammonia, 38 water samples exceeded 10 times more ammonia has 14, accounting for 35%; chemical oxygen demand exceeded more than 10 times for the two samples, representing 5 %; phosphorus exceeded more than 10 times with five, accounting for 12.5%.
farm manure vertical river
The survey shows that Beijing in some highly populated urban agglomeration bonding areas, sewage treatment station covers only 60% -70% of the area, while the sewage collection pipe network is not complete, resulting in a large number of sewage directly into the river.
example, Daxing District exempted 19 towns (streets) only seven built a sewage treatment plant, which HUANGCUN 34 villages are still more than 10 villages without supporting the construction of the sewage pipe network. Fengtai District, Zhu Jia Fen Road, east of the river Mangniu from Yungang Lu and Zhu Jia Fen Road intersection north there are 16 less than 1 km outfall.
inspectors also found that some of the outer suburbs there is a considerable number of various types of processing workshop, these workshops wastewater generated mostly straight row. Some farms even manure directly into the river.
response
[excessive] water
concentrated downstream river water quality exceeded
Beijing river water quality compliance rate of about 50%, drinking water quality is no problem
inspectors showed that Beijing urban water systems exist in all downstream pollution. The city's five major river systems in the investigation of the 50 rivers, in addition to nine water, the river water quality roads exceeded.
water and Beijing Environmental Protection Bureau Director Han Yongqi environmental management, said the inspectors focused on Beijing rivers downstream areas, objectively reflected the prevailing downstream water quality exceedances,adjustable motorcycle levers, Municipal Environmental Protection Monitoring in the downstream region see generally have exceeded several times or even ten times higher. But Beijing surface water overall look, Beijing upstream river compliance rate is high, especially involving drinking water source water quality, water quality monitoring showed no problems. Overall, the Beijing last ten years of the river, water quality compliance rate of 50% plus or minus, no significant improvement.
for river water quality exceeded, Han Yongqi said that five major river systems have exceeded this is an objective fact, but excessive rivers are concentrated in the downstream river. The compliance rate each river are not the same, the highest compliance rate Chaobai, compliance rate can reach 80%, upstream of Miyun Reservoir, Shunyi section on compliance, but to the downstream Tongzhou here or exceeded.
In recent years, environmental protection, water sector made great efforts for water treatment, why not improve the water quality? Han Yongqi said that after all these years of governance, several major water pollutant concentration is decreased. In accordance with national standards, 21 indicators have a long exceeded that exceeded water quality. Such as chemical oxygen demand was standard to 40 mg per liter, and now the water quality in the North Canal chemical oxygen demand has dropped to 40 mg or less, but the ammonia is still high, so the overall is exceeded.
[sewage treatment]
sewage treatment capacity lags behind population growth
The major sources of sewage, the city's 17 percent of untreated sewage directly discharged
survey shows that Beijing in some highly populated urban agglomeration bonding areas, sewage treatment station covers only 60% -70% of the area, while the sewage collection pipe network is not complete, resulting in a large number of sewage directly into the river.
in Han Yongqi view, Beijing's water quality problems, the largest population growth with environmental conflicts or contradictions between capacity. According to the plan, the Beijing Municipal sewage treatment capacity is 18 million according to the 2020 population of design, all construction, planning is based on the total population, but last year the Beijing population has reached more than 2000 million, the sewage treatment plant is now apparent progress keep up with the progress of urban development. Like Qinghe sewage treatment plant has been built one, two or even three, but each time a new one just completed, and again over the handling capabilities.
According to Han Yongqi introduction, Beijing water main or sewage pollution sources, the performance of black smelly river. Overall, the central city of contamination is not serious, like something is not large urban population density, sewage is not very high, mainly focused on issues including urban high peripheral and suburban areas. In rural areas than in urban sewage treatment capacity a little more slowly, the central city sewage treatment capacity of up to 95%, but in rural areas only 60%, but in rural areas, relatively speaking, the proportion of water is not high, but also because the township is relatively dispersed, impact on the environment unlike the less concentrated urban areas, mainly some densely populated areas, centralized sewage in a row, the problem is more serious.
Han Yongqi said, according to the Water Authority data, the city's sewage treatment rate of 83%, which means there are 17% of the water directly discharged without treatment. Beijing and other cities of the river is not the same, has no clean water downstream, the river where either the sewage treatment plant discharge treated water is either discharged directly. Like the Yangtze River city sewage into the river but also through self-purification capacity of the Yangtze River diluted, but the river in Beijing, even if the emission standard is already the country's most stringent effluent can also be standard, but still quickly over the river environmental standards.
response
industrial wastewater discharge will surface water standards
"Beijing water pollutant discharge standards" before the end of the introduction of the revised
According to Han Yongqi
introduced last year, Li first improve sewage treatment plant emission standards requiring sewage treatment plant discharge water must reach surface water standards. This year, plans to let wastewater discharges from industrial enterprises should follow a standard discharge of surface water, is currently being revised, "Beijing water pollutant discharge standards", probably introduced before the end of the year. Industrial enterprises are about a year or two upgrades.
Han Yongqi said that this year the city also introduced to speed up wastewater treatment and recycled water facilities construction program of action, to invest 30 billion yuan in three years, new sewage treatment capacity to solve problems.
Han Yongqi said that to improve water quality, the first sewage treatment plant built to solve the problem straight row, can handle processed first, then go for river Water retention, the river into the whole system, coupled with the joint sector law enforcement, which is basically three measures. Some places also short-term sewage treatment plant can not be resolved on the adoption of provisional measures, although not up to standard, but at least it will be smelly black water remediation problems in the future sewage treatment plant built, and then achieve discharge standards.
Han Yongqi that, after treatment, the water quality of at least three years, Beijing will be significant improvement in sensory. As the urban population is still developing, many pollutants migration changes will happen, so really want to achieve water quality standards, but also take longer.
to "Twelve Five", the city sewage treatment rate reached 90%, of which: areas within the Fourth Ring Road sewerage and sewage treatment rate reached 100%, the central city (refer to the city center and the Haidian mountain regions, Hexi District Fengtai, Daxing District, areas within the Fifth Ring Road) sewage treatment rate reached 98 percent, the Metro sewage treatment rate reached 90%. Beijing to speed up wastewater treatment and recycled water facilities construction three-year action plan (2013-2015)
edition have written / Beijing News reporter Deng Qi Jin Yu Liu Chunrui
3581 2013 年 7 29, Qinghe, drain stench of sewage discharged pollutants floating in the river. Beijing News Beijing News reporter Xue Jun photo Recently, the Environmental Protection Department of Environmental Protection inspection center in North China Beijing surface water quality status

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