沼气项目可行性论证分析调查报告

　XXXX

　沼气综合利用工程

　可 行 性 论 证 报 告 二○○九年九月 目

　录

　第 第 1 章

　总说明 ···································································································· 1 项目名称 ·························· 1 建设单位 ·························· 1 建设地点 ·························· 1

　建设年限 ·························· 1 工程模式 ·························· 1 建设目标 ·························· 1 建设内容及规模 ······················· 2 建设规模 ·························· 2 主要设施 ·························· 2 设计目标 ·························· 2 技术指标：

　························· 2 经济指标 ·························· 3 工艺流程 ·························· 3 工程投资 ·························· 3 资金筹措 ·························· 3 占地面积 ·························· 3 劳动定员 ·························· 3 建设工期 ·························· 3 第 第 2 章

　工艺技术方案 ························································································ 4 工艺设计依据 ························ 4 相关国家法律、法规和政策 ·················· 4 相关规范与标准 ······················· 5 其他依据 ·························· 5 工艺设计原则 ························ 6 技术先进性、可靠性和适应性原则 ··············· 6 经济效益最大化原则 ····················· 6

　环境和社会效益最大化原则 ·················· 6 工艺技术方案选择 ······················ 6 工艺技术选择 ························ 9 工艺流程 ·························· 10 第 第 3 章 结构设计 ································································································ 11 工程地质条件 ························ 11 结构选型及设计 ······················· 11 第 第 4 章 建筑设计 ································································································ 12 总体布置 ·························· 12 工程选址 ·························· 12 总体布置求 ························· 12 平面布置 ·························· 14 平面布置原则 ························ 14 道路及绿化 ························· 14 核心单元设计 ························ 14 核心厌氧单元 ························ 16 后处理及存贮单元 ······················ 17 配套设施 ·························· 18 第 第 5 章 电气设计 ································································································ 20 设计范围 ·························· 20 供电负荷 ·························· 20 配电系统 ·························· 20 电缆敷设 ·························· 21

　照明 ···························· 21 防雷及接地 ························· 21 第 第 6 章

　自动化仪表及控制设计 ····································································· 22 第 第 7 章

　给水排水设计 ······················································································ 23 设计依据 ·························· 23 设计范围 ·························· 23 消防给水排水 ························ 23 场区给排水 ························· 23 第 第 8 章

　防火专篇 ······························································································ 25 设计依据 ·························· 25 建筑防火 ·························· 25 总平面设计 ························· 25 单体建筑设计 ························ 25 消防和安全设计 ······················· 25 第 第 9 章

　运行费用分析 ······················································································ 26 收入部分 ·························· 26 运行成本 ·························· 26 年经济效益 ························· 27 第 第 10 章 安全生产与劳动保护 ········································································· 28 工程设计措施 ························ 28 安全操作方案 ························ 28 第 第 11 章

　环境保护 ···························································································· 31 执行依据和环境标准 ····················· 31

　工程建设的主要环境问题 ··················· 31 环境保护对策和措施 ····················· 31 环境管理和安全防护 ····················· 32 第 第 12 章 运行管理和劳动定员 ········································································· 33 运行管理 ·························· 33 维护保养 ·························· 33 岗位定员 ·························· 34 人员培训 ·························· 34 使用及维修 ························· 35 第 第 13 章 工程实施计划 ······················································································ 36 实施进度 ·························· 36 工作流程 ·························· 36

　第 1 章

　总说明 项目名称

　XXXX 大型沼气工程

　建设单位

　XXXX 建设地点

　建设年限

　2009 年 10 月--2010 年 8 月 工程模式

　能源生态型 建设目标

　厌氧反应器日产沼气 1000m3 ，满足养殖场周边 30 户用气，剩余沼气用于发电，同时改善 XXXX 及周边农业生态环境，提高农业综合生产能力和经济效益，改善能源供应结构，减少化肥和农药的使用量，提高产品品质和产量，实现社会、经济和环境的协调发展。将生猪场产生的废弃物（粪便、尿及冲洗污水）转化为沼气、沼液、沼渣，形成 “生猪养殖—废弃物综合利用—生态种植”的良性循环系统。部分沼气户用，另一部分用于发电；沼渣、沼液用于附近农田的施肥、灌溉，最大限度提高能源和资源的循环综合利用，实现养殖场的零污染排放。

　建设内容及规模

　建设规模

　XXXX 现有存栏母猪 800 头，年出栏生长猪 13000 头，生长猪常年存栏量约为 4000 头，每天产生的鲜粪约为 16 吨（每头母猪日产粪尿 5 千克，生长猪产粪尿 3 千克），含固率为 20%，采用水冲粪工艺，养殖场每天排放的粪污约 70 吨，则水冲粪的浓度约为 16*20%/70=%，因为进料浓度较低，设计反应罐的停留时间为 20 天左右，则反应罐尺寸约为 1200m3 。根据原料量拟建设规模如下：

　建设 1200m3 厌氧反应器 1 座及附属设施，贮气柜 480m 3 一座， 年产沼液肥万吨， 建设配套的沼渣沼液综合利用设施，设计日产沼气量为1000m3 ，其中 60m3 用于 30 户户用 3 ），剩余 940m 3 用于发电，年发电量为万千瓦时。

　 主要设施

　预处理单元：沉沙池 5m3 ，酸化集料池 m 3

　沼气生产单元：CSTR 厌氧反应器 1200m3

　一座； 沼气存贮单元：干式气柜 480m3

　1 座； 沼气利用单元：30 户沼气户用输配系统，50kw 发电机一台及配套设施； 沼渣沼液利用单元：沼液沉淀过滤池 m3 ，田间沼液贮池容积 4000m 3 。

　设计目标

　技术指标：

　产气量：1000m3 /天 进料浓度：3～6%（TS）

　发酵温度：35～38℃ 停留时间：20 天

　 经济指标

　总投资：万元 运行成本：元/m3

　工艺流程

　采取以“预处理+CSTR+干式贮气柜”为核心的处理工艺。

　工程投资

　其中沼气工程总投资万元 。

　建筑工程费用万元，设备购置费万元，安装工程费用万元，工程建设其它费用万元。

　资金筹措

　项目单位自筹 17 万元，不足部分申请政府支持或信贷解决。

　占地面积

　全部工程占地面积约 4 亩 劳动定员

　运行需定员 3 人 建设工期

　6 个月

　第 2 章

　工艺技术方案 工艺设计依据

　相关国家法律、法规和政策

　(1) 《中华人民共和国环境保护法》 (2) 《中华人民共和国水污染防治法》 (3) 《中华人民共和国水污染防治法实施细则》 (4) 《中华人民共和国可再生能源法》 (5) 《中华人民共和国畜牧法》 (6) 《畜禽养殖污染物防治管理办法》 (7) 《中华人民共和国农业技术推广法》 (8) 《中华人民共和国电力法》 (9) 《中华人民共和国节约能源法》 (10) 《中华人民共和国循环经济法》 (11) 《资源综合利用条例》 (12) 《中共中央关于制定国民经济和社会发展第十一个五年规划的建议》 (13) 《中共中央国务院关于积极发展现代农业扎实推进社会主义新农村建设的若干意见》 (14) 《全国生态环境保护纲要》 (15) 《可再生能源发电价格和费用分摊管理试行办法》 (16) 《关于发展生物能源和生物化工财税扶持政策的实施意见》 (17) 《可再生能源发展专项资金管理暂行办法》 (18) 《“十一五”资源综合利用指导意见》

　(19) 《国家鼓励的资源综合利用认定管理办法》

　 相关规范与标准

　(1) 《沼气工程技术规范》（NY/T 1220-2006）

　(2) 《室外排水设计规范》（GB50014-2006）

　(3) 《给水排水设计手册》 (4) 《环境工程设计手册》（水污染防治卷）

　(5) 《建筑设计防火规范》（GBJ16-87）

　(6) 《中、小型集...