Abstract: The objective of the Zhuzhou Brownfield Development Project for China is to support site remediation in Zhuzhou Qingshuitang core industrial area with the aim to reduce public exposure to contaminated land and to control site contamination in a manner that enables the safe redevelopment of the area. The main temporary environmental impact on ambient air quality comes from dust of earth excavation, on-site storage, backfilling and secondary dust from material and waste transportation, exhaust emission from vehicles and equipment, and odor from sediment dredging operation; The main water pollution sources during construction include domestic sewage from workers, washing water of closed enterprises’ buildings and construction equipment, initial rainwater runoff at closed enterprises, wastewater from dredging operation and accumulated water in the quarry pit; The main concerns of groundwater pollution will be wastewater from dewatering site, S/S site and temporary storage site. To avoid potential groundwater pollution, anti-seepage floor design is adopted for all these sites with necessary wastewater collection and treatment facilities. Therefore, the potential impact on groundwater can be adequately mitigated; and construction wastes from demolition will be disposed of in landfill after collection of recyclable materials. Contaminated soil and dredging sludge will be treated at S/S site and sent to landfill for disposal. With proper management of the waste, the potential environmental impacts can be adequately mitigated. Mitigation measures include: timely restoration of disturbed land; Maintenance of vehicles and machines; dredging during dry season (winter) with prior notice; No on-site storage of dredged material; personal protection equipment for workers; sealed truck for dredging material transportation; permit and prior notice for nighttime construction; Low noise equipment with adequate maintenance; use commercial cement, no on-site mixing; arrange material transportation routes and limit speed; avoid concentrated massive activities in one area; and avoid rainy day construction; and posters/bulletins and education of workers.
Publication Year: 2015
Publication Date: 2015-07-01
Language: en
Type: article
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