求翻译：摘要：随着国家新的《生活饮用水卫生标准》的实施，老水厂产水量和出水水质之间矛盾日益明显，特别是《生活饮用水卫生标准》GB5749-2006的颁布，使矛盾更加突出。本文着重介绍了大沙沟水厂改造前后的水量水质情况、改造方案的选择、施工中需要注意的重点要点，并分析了改造后的大沙沟水厂所带来的社会效益和经济效益。是什么意思？

Abstract: With the increasingly obvious contradictions between the implementation of the new national drinking water health standards ", the old water plant water production and water quality, especially the promulgation of" drinking water health standards "gb5749-2006, become more prominent . This

Summary: With the nation of the new drinking water standards, the implementation of an old water treatment plant and water production level between the water quality has become increasingly obvious, in particular, the life of drinking water hygiene GB 5749 - 2006, as a result of the enactment. This

Summary: as the national implementation of the new health standards for drinking water, the old contradictions between water and effluent quality of water production plant growing, especially the drinking water health standards issued GB5749-2006, conflicts have become more prominent. Dasha ditch th