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原文:
Water quality tests taken on Sunday at the closest beach - Orchard Beach in the Bronx - and in the Verrazano Bridge area found no violations of health standards for swimming, and all city beaches remained open yesterday.
Raw sewage also probably flowed northeast into Long Island Globe Valves
Sound with tidal movements, environmental officials said.
An electrical fire that shut down the Wards Island plant early Sunday led to a release of 160 million gallons of untreated sewage that day, one of the largest dry-weather discharges ever from a treatment plant, the city's Environmental Protection Department said. The untreated discharge amounted to about 10 percent of the 1.7 billion gallons that enter the city's system each day.
Only three of five pumps were operating yesterday afternoon when heavy rains started. During dry weather, three pumps might be able to handle the waste that flows to the plant from the Upper East Side of Manhattan and parts of the Bronx.
But in wet weather, even five pumps cannot accommodate the sewage, and as a result perhaps tens of millions of gallons more than during a usual storm were diverted yesterday untreated into the plant's outlet at Hell Gate, where the Harlem and East Rivers meet, and probably flowed from there toward the Hudson River and Long Island Sound.
Discharges of raw sewage during dry weather remain relatively common, although rarely do the releases reach the level of the spill on Sunday. Dry-weather dSafety valves
ischarges usually occur because of maintenance problems or scheduled construction projects.
Besides Wards Island, four other plants are operating at, near or above design capacity. State permits for the sewage plants require that they operate within design capacity; failure to do so can result in a ban on new sewer hookups. The Newtown Creek plant in Brooklyn, the city's largest plant, faces such a ban by the end of this month.
But last year the city and state signed an agreement modifying the September 1988 permit for the Wards Island plant, removing the threat of a sewer hookup ban until 1996 if the city pursued stronger water conservation meausures and added plant capacity. In effect, the state found there was no chance that the plant could stay within its design capacity.
Electrical systems for two of the five pumps at Wards Island were damaged by the fire. Engineers are trying to rewire the less seriously damaged of the two so it can be restarted. Even before the rainstorm, as many as 7 million gallons of untreated waste flowed into the water because one of the three operating pumps shut down unexpectedly yesterday between 2 A.M. and 10 A.M.
Terming the Wards Island accident ''inexcusable,'' Alan I. Reducing Valves
Mytelka, director of the Interstate Sanitation Commission, a regional regulatory and enforcement agency, said, ''These things are bound to happen if you don't have adequate maintenance and backup systems.''
原文来自:http://www.nytimes.com/1990/07/24/nyregion/engineers-battle-to-restart-pump-to-halt-sewage-flow.html
Engineers Battle to Restart Pump to Halt Sewage Flow;是由 上海一环流体控制设备有限公司提供的阀门新闻,中文译文仅供参考(上海一环流体控制设备有限公司还生产
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译文:严重破坏阀门系统
未处理的污水也可能流入东北长岛与潮汐运动,环保官员说。
一个电气火灾关闭工厂病房岛日凌晨导致了1.60亿加仑未经处理的污水释放当天,最大的旱季污水处理厂从一,城市环境保护署有否人说。未经处理的排放量约10一十七点零零亿加仑的百分之进入城市的系统每一天。
只有5水泵3人经营昨日下午,大雨开始。在干燥的天气,三泵也许能够处理的废物,从上东城曼哈顿和布朗克斯部分工厂流动。
但是,在潮湿的天气,甚至五年泵不能满足污水,并因此对加仑超过几千万甚至在一般的风暴昨天被转运到植物的在地狱门,其中出口未经处理的哈莱姆和东部的河流交汇,和可能是从那里流入对哈得孙河和长岛海峡。
病房岛崩溃体现出严重的问题,继续在城市的14个污水处理厂,尽管近年来有所改善,整体污水处理系统。也许最大的问题是,这种系统是过时的,在病房岛工厂于1936年建成。
排放未经处理的污水在干燥的天气仍然比较普遍,但很少做释放到达周日泄漏的水平。旱季排放通常是由于维修问题或计划建设项目发生。
大大提高原料的废物排放量是暴雨期间和之后,负担过重时,污水处理厂转移到航道未经处理的污水直接。事实上,市卫生局建议人们不要至少两天后,从游泳在很多泳滩的降雨。
前北江工厂在曼哈顿和布鲁克林红钩工厂建设在仅仅几年前,对数百万加仑未经处理的污水流入天数和东部的哈得逊河。但是,北江厂,于1986年创立于靠近西135街哈德森,继续对问题严重的气味。
此外病房区,其他四个工厂目前的生产,接近或超过设计能力。国家对污水处理厂许可证要求他们设计能力范围内经营;不这样做可能导致新的下水道进行连接的禁令。在新镇溪在布鲁克林,该市最大的植物,植物面临着在本月底的禁令。
但去年这个城市和国家签署了一项协议,修改1988年9月的病房岛工厂许可证,消除了污水联播禁令直到1996年的威胁,如果采取有力的城市节约用水meausures并增加工厂的生产能力。实际上,国家发现没有机会,这种植物可以留在其设计能力。
在病房的五岛两个泵电气系统被破坏了火。工程师们正在试图重新连接的那么严重损害了两个,以便可以重新启动。即使在暴雨中,多达700万加仑未经处理的污水流入水,因为这三个经营泵一意外关闭2至昨日上午与上午10时
未经处理的污水流入从上周日凌晨4点左右入水直到下午2时45分,当一台泵启动。
在泳滩海水样本,不到10粪便每100毫升水大肠菌群被发现果园海滩,而韦拉札诺测试中发现40个100毫升的细菌。这种细菌含量在每100毫升水洗澡国家标准200。
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