Because of the upper reaches of the Yangtze River Jialing River and its tributary Qingnian River thallium concentration anomalies, Gansu Longnan City, Shaanxi Lueyang County, respectively, to start the environmental pollution of level Ⅲ, Ⅳ level emergency response. Qingnai River Gansu-Shaanxi junction still thallium exceeded 1.7 times. Public information shows that the green mud River originated in Gansu Hui County eight ditch, in Gansu Longnan City, Cheng County, Shi Jia Ping Village into the Shaanxi Hanzhong City, Liuyang County, Baishuijiang territory, over the Iron Buddha Temple, Pipa Temple, in the Fengjiaba converge into the Jialing River. After investigation, a zinc smelter located in the territory of Longnan City treated wastewater with abnormal thallium concentrations. Currently, the company's affiliates have issued an announcement that the plant has been completely shut down to carry out self-inspection work.
The official website released a message saying that the ecological environment department of Gansu province informed that the thallium concentration in the water of the Jialing River is abnormal, and asked Longnan city to conduct a collaborative investigation. Longnan Municipal People's Government to start environmental pollution Ⅲ level response. At present, Cheng County is carrying out disposal work, the thallium content of the Qingnian River is showing a significant downward trend. The cause of the incident is under investigation. Subsequently, the thallium concentration in the outbound section of the Qingnian River in Chengxian County has reached the standard. In addition, in order to do a good job of emergency disposal, the state, Gansu Province, the relevant experts at the first time to develop a program to set up degradation pools in two rivers in the Qingnai River, adding the appropriate amount of potassium permanganate treatment, individual degradation pools in the river water was red. Potassium permanganate dissolved in water is purple-red, itself has a very good oxidizing and sterilization function, commonly used in the field of medical and health care, and will not affect the ecological environment and plants and animals. At present, the thallium concentration in the Qingnian River has been stabilized to within the prescribed value, and the addition of low concentration of potassium permanganate has been stopped.
Liuyang County government official website in Hanzhong City, Shaanxi Province, also released a news release, said, by the Hanzhong City Bureau of Ecology and Environment and the Loyang Branch monitoring, Liuyang County, Jialingjiang River Basin, Dongdu River, Qingnian River tributaries of the surface water cross-section thallium exceeded the standard. In order to quickly dispose of the emergency, the county government quickly launched the Liuyang County environmental emergencies Ⅳ emergency response. In accordance with the expert group emergency disposal advice, the relevant departments to take the diversion of water diversion, weir blocking pollution, put agents, precipitation pollution reduction and other ways to carry out a full range of emergency disposal and pollution control and other work.
Longnan City conducted a comprehensive inspection of all industrial and mining enterprises. Upon inspection, the thallium concentration in the wastewater handled by Chengzhou Zinc Smelter was abnormal. The city and county governments ordered the enterprise to immediately cut off the source of wastewater discharge, and then the enterprise stopped production. At the same time, Chengzhou zinc smelter's associated enterprises Baiyin Nonferrous Group Co., Ltd. recently, Baiyin Nonferrous subordinate holding subsidiary of Gansu factory dam nonferrous metals limited liability company of Chengzhou zinc smelter received Longnan City Bureau of Ecology and Environment notification, thallium concentration in the water of the Jialingjiang River is abnormal, and the city's enterprises are required to carry out a self-inspection. At present, the zinc smelter has been fully shut down, to carry out self-examination work. The announcement said, at present, the Longnan Municipal People's Government has started the environmental pollution level Ⅲ response, Cheng County is carrying out disposal work, the thallium content of the Qingnian River is showing a significant downward trend, the cause of the incident is under investigation. After the incident, Chengzhou zinc smelter in accordance with the requirements of the local government, immediately suspend production, carry out self-examination work, Chengzhou zinc smelter specific resumption of production time will be determined according to the subsequent progress of work.