西安建筑科技大学：《水资源利用与保护》参考资料_Wastewater as a resource_General Introduction of Sewer System

General introduction of e Municipal Wastewater System in Xian

General Introduction of Municipal Wastewater System in Xi ’an

Background Information about Municipal Wastewater System in Xian e Population: 3, 260,000 Areas: 187km Sewer system Partly combined sewer system( Downtown) Partly separate sewer system(Other areas e Total sewer length: 835. 4km in which the length of rain pipe is 345 4km and that of sewage pipe is 490km e Total service areas: 152 2Km2

Background Information about Municipal Wastewater System in Xi’an Population: 3,260,000 Areas: 187km 2 Sewer system: Partly combined sewer system (Downtown) Partly separate sewer system (Other areas) Total sewer length:835.4km in which the length of rain pipe is 345.4km and that of sewage pipe is 490km. Total service areas:152.2km 2

Sewer System and reatment Policy e Separate sewer system The whole city is divided into six zones (Districts)according to Geography Industrial and economic activities Service function e Six centralized treatment plants will be built

Sewer System and Treatment Policy Separate sewer system The whole city is divided into six zones (Districts) according to: Geography Industrial and economic activities Service function Six centralized treatment plants will be built

九九五 西安市排水工程规划 年 Itit#I Ay&tEi →; 三 Sewer System and Service areas in Xi'an

Sewer System and Service areas in Xi’an

Municipal Wastewater Treatment Situation in Xian No Name Service Capacity/ areas(km(105m3/d) Beishiqiao48.5 15 In operation Dengiiacun 24.9 16 Under construction(in operation at the end of 2002) Dianzicun 45.0 25 In plan (in operation at the end of 2004) Fangzhichen 21.0 10 g Yuanlecun 45.7 20 6 Wenlebao 33.4 10 Totall 218596

Municipal Wastewater Treatment Situation in Xi’an No Name Service areas(km 2 ) Capacity (*10 5 m 3/d) 1 Beishiqiao 48.5 15 In operation 2 Dengjiacun 24.9 16 Under construction (in operation at the end of 2002) 3 Dianzicun 45.0 25 In plan (in operation at the end of 2004) 4 Fangzhichen g 21.0 10 5 Yuanlecun 45.7 20 6 Wenlebao 33.4 10 Total 218.5 96

Bird View of Beishiqiao WWTP

Bird view of Dengjiacun WWTP

Bird View of Dengjiacun WWTP

Target to be pursued at the end of 2004 ./Three WTPs will be in operation s Treatment capacity will reach 51*10m3/d e The percentage of municipal wastewater treated in xi' an will reach more than 60%

Target to be pursued at the end of 2004 Three WWTPs will be in operation; Treatment capacity will reach 51*10 4 m 3/d; The percentage of municipal wastewater treated in Xi’an will reach more than 60%