people.com.cn Lanzhou 13 April, Lanzhou city held a press conference this afternoon, preliminary identify the cause of gravity ditch water exceed the standard of benzene. Cheap seattle pilot Jerseys According to environmental experts to the scene to analyze and judge, surrounding underground sewage is the direct cause of benzene exceed the standard of water flowing groove.
according to the investigation Cheap Nationals jerseys at present the preliminary judging, cause Cheap Tigers Jerseys self ditch surrounding underground sewage formation has three points: one is the original Lanhua company raw power plant crude oil distillation workshop R205A# residue tank in December 28, 1987 eight fifty physical blasting accidents, tank rupture caused by 90 cubic residue discharged, of which 34 tons residue material running failed to recycling, infiltration underground; two is the original Lanhua company raw power plant crude oil distillation workshop pump B-113 outlet duct in April 3, 2002 cracking occurs on fire, a lot of fire water seeping underground leakage and fire in the process of residue.
according to in new network Lanzhou on 13 April, Lanzhou City, "4· deputy head of the 11" local water benzene indexes exceed the standard emergency leading group Zheng Zhiqiang said 13 days, the investigation group from 11 days afternoon 3 when begin to investigate, adopt the method of excavation pit, find the caused water benzene exceed the standard orientation. According to environmental experts to the scene to analyze and judge, surrounding underground sewage is the direct cause of benzene exceed the standard of water flowing groove.
Lanzhou official bulletin said, according to the survey the present preliminary judgement, there are two causes self ditch surrounding underground sewage:
is the original Lanhua company raw power plant crude oil distillation workshop R205A# residue tank (the site of the former company raw power plant 2500000 tons / year oil refining device, the device was built in 1982, was stopped in 2003, removed in 2006. After the demolition, 400000 tons / year aromatics extraction unit in the completion of the existing tank farm design, respectively stored distillate oil, light oil, oil), once Cheap Angels jerseys in December 28, 1987 eight fifty physical blasting accidents, tank rupture caused by 90 cubic residue discharge, including 34 tons of oil run material could not recovery, into the ground.
two is the original Lanhua company raw power plant crude oil distillation workshop pump B 113 outlet duct in April 3, 2002 cracking occurs on fire, leakage of residue (the exact number was not statistical) a lot of fire the sewage into the ground and the fire process.
and Zheng Zhiqiang said, at present, Lanzhou petrochemical production equipment and tank farm operating normally, no leakage phenomenon of materials and products. In the production area of the rain drainage well of sewage system, water well found no leakage Cheap White Sox Jerseys phenomenon, a small amount of floating oil found fire wells.
Keythe accident investigation team next survey work is extracted from the excavation pit, the oily wastewater were performed in laboratory, further from the relevance technical level verification of oily wastewater and self in the underground water benzene exceed the standard. At the same time, the leakage point of No. 4, No. 3 - bit field survey in check, and related to cause local water benzene exceed the standard of responsibility for the incident
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