污水处理厂选址论证

工程名称：乐山市中心城区城西污水处理厂建设项目选址论证报告设计阶段：论证报告编制单位：乐山市城乡规划设计院市政工程设计证书：市政乙级设计证号：市政225220－SY号院长：许明清高级工程师副院长：朱山高级工程师注册规划师总工程师：王仲湘高级工程师注册规划师市政室主任：腾保安高级工程师注册规划师项目负责人：白新兴助理工程师参加人员：白新兴助理工程师校核：王仲湘高级工程师注册规划师协助编制的单位及人员：污水处理厂冷淳工程设计编号：2010S-006乐山市中心城区城西污水处理厂建设项目选址论证报告乐山市城乡规划设计院2010年01月·乐山乐山市中心城区城西污水处理厂建设项目选址论证乐山市城乡规划设计院1目录1概述··················································································31.1编制选址论证报告的目的················································31.2编制依据·····································································31.3选址原则·····································································42建设项目所在区域环境概况····················································52.1自然地理条件·······························································52.2气候条件·····································································62.3水文条件·····································································62.4地形地貌·····································································62.5社会及基础设施概况······················································73项目背景资料······································································73.1本项目服务范围·····························································73.2苏稽片区规划定位··························································83.3《乐山市中心城区苏稽片区控制性详细规划》污水处理厂定位··83.4江河饮用水水源保护区···················································83.5苏稽片区交通关系图······················································94项目建设建设规模及用地面积·················································94.1建设规模······································································94.1.1人口规模预测·························································94.1.2城市污水排放量系数···············································10乐山市中心城区城西污水处理厂建设项目选址论证乐山市城乡规划设计院24.1.3污水量预测···························································104.1.4建设工程规模·······················································114.2建设用地面积·······························································115污水厂的建设条件·······························································125.1地理位置·····································································125.2预留用地·····································································135.3防洪标准·····································································135.4供电电源·····································································135.5厂区供水·····································································135.6道路···········································································146污水厂的厂址比选·······························································147环境影响及对策··································································167.1工程建设环境影响及对策················································167.1.1工程建设对环境影响···············································167.1.2环境影响的缓解措施···············································187.2项目建成后的环境影响及对策··········································197.2.1污水处理厂对周围的环境影响···································207.2.2对环境影响的对策··················································208结论与建议········································································228.1结论······································································228.2建议······································································22乐山市中心城区城西污水处理厂建设项目选址论证乐山市城乡规划设计院3乐山市中心城区城西污水处理厂建设项目选址论证1概述1.1编制选址论证报告的目的因为《乐山市中心城区城西污水处理厂的可行性研究报告》选定的污水处理厂位置位于城市规划区范围内，但该地区的控制性详细规划正在编制中，为确保该项目的选址过程具有科学性、前瞻性、可行性，特编制此《选址论证报告书》，为决策领导提供科学的依据。1.2编制依据（1）乐山市规划和建设局《关于污水公司申请城西污水处理厂选址意见书的回复》（2）《乐山市中心城区总体规划》（上海同济城市规划设计研究院，2008.12）（3）《乐山市城西污水处理工程可行性研究报告》（中国市政工程西南设计研究院，2009.12）（4）《乐山市中心城区苏稽片区控制性详细规划》（5）《乐山市中心城区苏稽城北片区控制性详细规划》（编制中）（6）《乐山市中心城区苏稽城南片区控制性详细规划》（编制中）（7）《乐山市中心城区排水专项规划》（编制中）乐山市中心城区城西污水处理厂建设项目选址论证乐山市城乡规划设计院4（8）《乐山市中心城区棉竹片区控制性详细规划》（9）《乐山市中心城区柏杨西路片区控制性详细规划》（10）《四川省饮用水水源保护管理条例（修正）》（11）主要设计规范及标准：《室外排水设计规范》GB50014-2006《室外给水设计规范》GB50013-2006《城镇污水处理厂污染物排放标准》GB18918-2002《城市污水处理工程项目建设标准》（建设部2001修订版）《城市排水工程规划规范》GB50318-2000；《城市给水工程规划规范》GB50282-98；《污水综合排放标准》GB8978-1996；《污水排入城市下水道水质标准》CJ3082-1999；《地表水环境质量标准》GB3838-2002；《给水排水工程管道结构设计规范》GB50332-2002；《城市防洪工程设计规范》CJJ50—921.3选址原则（1）污水厂应设在地势较低处，便于城市污水自流入厂内，减少工程土石方量，沿途尽量不设或少设泵站提升。（2）污水厂宜设在水体附近，便于处理后的污水就近排入水体，并无需提升。排入的水体应有足够的环境容量，减少处理水对水体的影响。乐山市中心城区城西污水处理厂建设项目选址论证乐山市城乡规划设计院5（3）厂址应位于集中给水水源的下游，或者达到饮用水水源保护区范围外的上游，并应在城镇、工厂厂区及居住区的下游和夏季主导风向的下方。（4）厂址应尽可能少占或不占农田，且应设在地质条件较好的地段，便于施工、降低造价。（5）厂址不宜设在雨季容易受淹没的低洼处。（6）污水处理厂选址应考虑污泥的运输和处置，宜靠近公路和河流。厂址处要有良好的水电供应。（7）选址应结合城市的总体规划，注意城市的近远期发展问题。厂址用地还应考虑扩建的可能。2建设项目所在区域环境概况2.1自然地理条件苏稽镇位于乐山城区西北部，地处东经103°36′00″至103°41′40″，北纬29°33′55″至29°37′42″。位于乐山、峨眉、沙湾主要公路交汇处，与沙湾、峨眉、夹江三县相邻。全镇东西宽8.231公里，南北长5.11公里，辖区面积40.85平方公里。苏稽片区位于成都平原经济圈南部边缘，距成都100余公里，是“天府之国”的重要组成部分。片区地处联系“乐山大佛”和“峨眉山风景名胜区”两大世界级遗产的交通要道，区位和交通优势十分突出。不仅乐峨旅游通道（准一级公路）横贯镇区，而且其与乐山城市核心区仅一桥之隔，东距成（都）乐山市中心城区城西污水处理厂建设项目选址论证乐山市城乡规划设计院6乐（山）高速公路入口1公里，东南距乐山大件码头8公里，西距峨眉山19公里（离峨眉火车站13公里），南距沙湾城区25公里，乐峨路、乐沙路、乐九路穿越境内；即将建设的乐雅高速公路和“绵-成-乐”城际快速铁路拟分别在组团北、南部外围相切而过，是乐山中心城市西部交通枢纽。2.2气候条件苏稽片区处于东南季风和西南季风影响区域，加之地形抬升作用，气候湿润、雨量充沛、水热同季、无霜期长。年平均气温17.5℃，无霜期335天。整个区域湿度大、云雾多，日照处于全国最低区，一般为1000～1200小时，日照百分率只有25%