我国城市污水处理回用调查研究

在水利部主持下,开展了2007年全国城市污水处理回用现状的调查,取得了全国城市污水回用现状的基础数据.结果表明,2007年,全国城市污水回用总量为17.9×108m3,城市污水处理回用率为5.23%,主要用于工业、景观、农林牧业、城市非饮用水、地下水回灌.全国共有127座再生水厂,再生水管道总长1 421.78 km.再生水厂总投资为56.44×108元,中央财政投资、地方财政投资和其他投资分别占16%、26%和58%,再生水管网其他投资和地方财政投资分别为66%和32%,中央投资仅为2%.再生水发展状况具有较强的地域性,与当地的水资源状况、产业结构和经济状况有密切关系.

National Survey of Urban Sewage Reuse in China

On the basis of the national survey of the urban sewage treatment, the survey of 2007 national urban sewage reuse was conducted under the charge of the Ministry of Water Resources. The survey results indicated that the amount of urban sewage reuse was 17.9×10⁸ m³·a^-1, mainly used for industry, landscape, agriculture forestry, animal husbandry, urban non-potable water, and groundwater recharge. The urban sewage reuse rate was 5.23%. There were 127 sewage reclaiming plants in China, of which the production capacity of reclaimed water reached 347.75 × 10⁴ m³·d^-1, which produced 5.74×10⁸ m³ reclaimed water in 2007. The total investment of sewage reclaiming plants was 56.44 × 10⁸ Yuan, in which the central government investment, local fiscal investment and other investments accounted for 16%, 26% and 58%, respectively. The reclaimed water price varied greatly with the purposes or areas.