1. Shiyan Eastern New District Comprehensive sewage treatment plant and pipe network construction project (Area A), a garden-style sewage treatment plant using landscape ecological biological contact oxidation treatment technology, with a design scale of 1500m3/d, the design effluent water quality meets the "Surface water Environmental Quality Standards" Class IV water standards。

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2, Shiyan City Dachuan Town sewage project covers an area of 0.17 hectares, daily treatment of 1,500 tons of sewage, supporting sewage network 7 kilometers, with high efficiency, stability, economy, ecology, landscape and other five characteristics。The water reached Grade A standard。

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