Set wastewater sedimentation tank and wash area

According to site conditions and a reasonable set of wastewater sedimentation tank washing area, laid drainage system, set up expressly logo, logo production and installed in accordance with "safe and civilized railway construction project site sign" - identified 11 iron, iron identify six requirements.  should be regularly watering the ground, Precast concrete plant for dust sources.  Each concrete mixing operation is complete, timely cleaning equipment, cleaning up the scene, so that space tidy.  Construction noise generated close to residential areas should not exceed the current "Construction Site Noise Limits" (GB12523) requirements, or should be monitored.  should be set according to motor vehicles, equipment washing facilities, drainage ditches and settling ponds, construction of sewage treated before discharge into ready mix concrete plant sewage pipe network or river.  waste generated by construction machinery and equipment, waste oil and sewage shall directly into rivers, lakes or other waters it, nor shall be discharged into the land near the source of drinking water.