九颗松石英项目可行性研究报告.doc

fancy style popular in those days. it was also a treasure decorated with gold and jewels, which took the countrys best artists about ten years to make.in fact, the room was not made to be a gift. it was designed for the palace of fredrick i. however, the next king of prussia, fredrick william i, to whom the amber room belonged, decided not to keep it. in 1716 he gave it to peter the great. in return, the czar sent him a troop of his best soldiers. so the amber room became part of the czars winter palace in st petersburg. about four metres long, the room served as a small reception hall for important vistors. later, catherine had the amber room moved to a palace outside st petersburg where she spent her summers. she told her artists to add more details to it. in 1770 the room was completed the way she wanted. almost six hundred candles lit the room, and its mirrors and pictures shone like gold. sadly, although the amber room was cnsidered one of the wonders of the world, it is now missing.in september 1941, the nazi army was near st petersburg. this was atime when the two countries were at war. before the nazis could get to the summer palace, the russians were able to remove some furnitures and small art objects from the amber room. however, some of the nazis secretly stole the room itself. in less than two days 100000 pieces were put inside twenty-seven wooden boxes. there is no doubt that the boxes were then put on a train for konigsberg, which was at a time a german city on the baltic sea. after that, what happened to the amber room remains a mystery.recently, the russians and germans have built a new amber room at the summer palace. by studying old photos of the former amber room, they have made the new one looke like the old one. in 2003 it was ready for the people of st petersburg when they celebrated the 300th bithday of their city.a fact of an opinionwhat is a fact? is it something that people believe? no. a fact is anything that can be proved. for example, it can be proved that china has more people than any other country in the world. this is a fact.then what is an opinion? an opinion is what someone believes is true but has not been proved. so an opinoion is not good evidence in a trail. for example, it is an opinion if you say “cats are better pets than dogs”. it may be true, but it is difficult to prove. some people may not agree with this opinion but they also cannot prove that they are right.in a trail, a judge must decide which eyewitnesses to believe and which not to believe. the judge does not consider what each eyewitness looks like or where that person lives or works. he/she only cares about whether the eyewitness has given true information, which must be facts rather than opinions. this kind of information is called evidence.big feng to the rescuehis friends and family call him “big feng” because he is bery tall and played basketball as a young man. but he is also big in a different way he fights hard to protect chinas past. his real name is feng jicai and he has written many novels about life in china. several years ago, however, he put down his pen for a while and began to protect the cltural relics in tianjin, where he lives. once someon asked him why he no longer wrote. he replied that at the moment he felt protecting cultural relics was more important. feng loves his hometown. he believes that old things must be given a plave next to new thins, or people will soon forget ther great past. he does not make speeches to get others to help him in his projects. instead he goes out and does what he can himeself. if others follow him, so much the better. one of his biggest projects was to protect the oldest street in tianjin. along that street some shops had done business for seven hundred years. althought the city government rebuilt this street, they did save its oldest building. another project was more successful: he persuaded the city government to buy some land in the centre of the city so it could not be sold for businesses. this area is very improtant for the history of tianjin. it was here that the city was first built during the song dynasty. later many treasures were found here.to feng, digging down in to the earth is like reading page after page of a book. each dynasty found in the earth is like an interesting story. not long ago he and other writers and artists took photos of the old parts of tianjin. the photos were put into a book which was very popular. the money from the book helps his prjects. once, and old man asked feng to sign a book for him, saying he would give it to his grandson who was not yet born. feng was glad to do it - he knows that he past is not only for us to enjoy but also for the children of the future.unit 2an interviewpausanias, who was a greek writer about 2000 year ago, has come on a magical journey on march 18th ,2007 to find out about the present-day olympic games. he is now interviewing li yan, a volunteer for the 2008 olympics games.p: my name is pausanias. i lived in what you call “ ancient greece” and i used to write about the olympic games a long time ago. ive come to your time to find out about the present-day olympic games because i know that in 2004 they were held in my homeland. may i ask you some questions about themodern olympics?l: good heavens! have reallycome from so long ago? but of course you can ask any questions you like. what would you like to know?p: how often do you hold your games?l: every four years. there are two main sets of gamesthe winter and the summer olympics, and both are held every four years on a regular basis. the winter olympics are usually held two years before the summer games. only athletes who have reached the agreed standard for their event will be admitted as competitors. they may come from anywhere in the world.p: winter games? how can the runners enjoy competing in winter? and what about the horses?l: oh no! there are no running races or horse riding events. instead there are competitions like skiing and ice skating which need snow and ice. thats why theyre called the winter olympics. its in the summer olympics that you have the running races, together with swimming, sailing and all the team sports.p: i see. earlier you said that athletes are invited from all over the world. do you mean the greek world? our greek cities used to compete against each other just for the honour of winning. no other countries could join in, nor could slaves or women!l: nowadays any country can take part if their athletes are good enough. there are over 250 sports and each one has its own standard. women are not only allowed, but play a very important role in gymnastics, athletics, team sports and p: please wait a minute! all those events, all those countries and even women taking part! where are all the athletes housed?l: for each olympics, a special village is built for them to live in, a main reception building, several stadiums for competitions, and a gymnasium as well.p: thats sounds very expansive. does anyone want to host the olympic games?l: as a matter of fact,every country wants the opportunity. its a great responsibility but also a great honour to be chosen. theres as much competitions among countries to host the olympics as to win olympic medals. the 2008 olympics will be held in beijing.p: oh yes! you must be very proud. l: certainly. and after that the 2012 olympics will be held in london. they have already started planning for it. a new village for the athletes and all the stadiums will be built to the east of london. new medals will be designed of course and p: did you say medals? so even the olive wreath has been replaced! oh dear! do you compete for prize money too?l: no, 项 目 名 称：年产10万吨石英砂生产线项目建设单位（盖章）：安徽省/县/矿业有限公司 第 0 页 1、项目名称-指项目立项批复时的名称，应不超过30个字（两个英文字段作一个汉字）。2、建设地点-指项目所在地详细地址，公路、铁路应填写起止地点。3、行业类别-按国标填写。4、总投资-指项目投资总额。5、主要环境保护目标-指项目周围一定范围内集中居民住宅区、学校、医院、保护文物、风景名胜区、水源地和生态敏感点等，应尽可能给出保护目标、性质、规模和距厂界距离等。6、结论与建议-给出本项目清洁生产、达标排放和总量控制的分析结论，确定污染防治措施的有效性，说明本项目对环境造成的影响，给出建设项目环境可行性的明确结论。同时提出减少环境影响的其他建议。7、预审意见-由行业主管部门填写答复意见，无主管部门项目，可不填。8、审批意见-由负责审批该项目的环境保护行政主管部门批复。建设项目基本情况项目名称年产10万吨石英砂生产线项目建设单位安徽省/县/矿业有限公司法人代表花江联系人 通讯地址/县大庙镇希望村联系电话 传真邮政编码233100建设地点/县大庙镇希望村立项审批部门/县乡镇企业局批准文号乡企技字(2003)33建设性质新建行业类别及代码b1090其他非金属矿采选占地面积（平方米）20667绿化面积（平方米）总投资（万元）1000其中：环保投资（万元）180.5环保投资占总投资比例18.05评价经费（万元）使用日期2004年10月工程内容及规模：1、项目由来安徽省/县/矿业有限公司是由湖北蕲春九棵松人造板有限有限公司投资新建的石英砂生产加工的企业，项目位于/县大庙镇希望村杨圩片，该石英砂生产线项目项总投资1000万元，占地面积为14000m2，年生产石英砂10万吨。石英砂是重要的工业矿物原料，广泛用于玻璃、铸造、陶瓷及耐火材料、冶炼硅铁、冶金熔剂、冶金、建筑、化工、塑料、橡胶、磨料等工业。该产品具有市场需求大，经济效益好等优点。为抓住市场机遇，增加企业效益，根据中华人民共和国环境保护法及建设项目环境保护管理条例等法规文件，安徽省/县/矿业有限公司委托江苏省设备成套有限公司承担该项目环境影响评价工作。接受委托后，我单位立即组织有关技术人员进行现场踏勘、收集资料，依据国家有关法规文件和环境影响评价技术导则，编制了该项目环境影响评价报告表。说明：该项目已于2004年10月建成，属补办环境影响评价文件。2、工程内容及规模厂区总占地面积20667m2，厂区建有办公楼、生产区、沉淀池和仓储区等，具体工程内容及规模详见表1：表1 工程内容及规模工程类别工程名称工程内容工程规模主体工程石英砂生产线日产333吨石英砂生产线1条， 配备8台水碾、脱泥斗及破碎机等建筑面积500m2辅助工程办公区办公楼1栋，配套有食堂及住宿等设施建筑面积800m2保管区1栋，单层结构，为机械、设备存放维修处建筑面积300m2公用工程供电一台300kva变压器及配套变压房建筑面积40m2供水生产用水主要由蓄水塘供给，新鲜水由厂区深水井供给，供水量240.8m3/d；生活用水由水井供给排水工艺废水经厂区内沉淀池沉淀后循环回用，生活污水经沉淀池收集后用于厂区绿化储运工程原料堆场用于堆放石英砂矿建筑面积600m2成品堆场用于堆放成品砂建筑面积1500m2固废堆场用于堆放尾砂、尾泥等建筑面积700m2运输采用汽车运输，运输车辆加盖棚布环保工程绿化约800m2浓缩淀池定期投加絮凝剂容积2400m3沉淀池三级沉淀容积2400m3循环池蓄水容积6400m33、产品方案表2 项目产品方案一览表类别名称产品规格单位年产量备注产品低铁砂20目全通过吨/年70000汽运精砂22目吨/年10000汽运普通砂22目吨/年20000汽运副产品尾砂60目吨/年25500外运尾泥/吨/年9500水泥厂收购铁屑/吨/年150外售物资回收公司4、工作天数和劳动定员工作天数：年工作日300天，两班制，每班8小时。劳动定员：全厂劳动定员30人，其中生产人员24人，管理人员6人。5、公用工程给水：生产用水主要由蓄水塘供给，蓄水塘容积约6400m3，位于厂区南端，主要用于将沉淀后的生产废水蓄积后回用，新鲜补充水由厂内深水井供给，供水能力为240.8m3/d；生活用水由水井供给。排水：厂区的生产废水通过管道汇集到沉淀池絮凝沉淀处理后排入蓄水塘循环使用，不外排；少量生活污水经沉淀池收集后用于厂区绿化。供电：公司生产和生活用电均由大庙镇供电所提供，经厂内变压后，供各用电系统使用。6、原辅材料消耗量表3 原辅材料消耗量一览表序号原辅材料年消耗量1硅矿石13.25万吨/年2石碾9000只/年3包装袋30万条/年4碱式氯化铝（絮凝剂）70吨/年7、主要设备及设施：表4 主要生产设备及设施一览表序号名称单位数量备注1铲车辆22鄂式破碎机台13输送机套24水碾机台85砂泵台32用1备6脱泥斗套63m,h4.8m7分离器套4自制8水泵台3续表4 主要生产设备及设施一览表序号名称单位数量备注9地磅台1150t10浓缩池立方米1规格30 m40 m2 m11沉淀池立方米3个规格20 m20 m2 m 212储水塘立方米1规格80 m40 m2 m8、能源消耗情况 表5 主要能源消耗一览表序号能源名称单位数量1电万度/年1202水t/a652009、与产业政策的相符性根据国务院关于发布实施的决定国发（2005）号文，对照产业结构调整指导目录（2005年），本项目不在现行国家产业政策中规定的限制和淘汰类建设项目之列，可视为允许类项目，项目的建设符合国家当前的产业政策。10、选址可行性分析本项目用地属于工业用地，符合/县的用地规划，所从事行业符合/县经济发展的产业规划。该项目地理位置优越，交通便利，供水、供电等配套设施完善，企业发展前景良好。项目地西、北侧均为农田，南侧为叹儿湾水渠，东侧为道路（项目周边情况见附图2），周边500m范围内无集中居住区、学校、医院等敏感点，经落实本次评价提出的污染物防治措施后，厂区污染物均可做到达标排放，不会降低该区域环境质量现状。因此，从产业政策、规划、经济、环境等诸方面综合分析，项目的选址是合理可行的。与本项目有关的原有污染情况及主要环境问题：安徽省/县/矿业有限公司年产10万吨石英砂生产线项目主要有废水、粉尘和固体废物排放。生产中产生的废水经絮凝、沉淀进入蓄水塘后循环使用不外排，生活废水经厂区污水处理设施处理后排入附近农灌渠，汇入濠河。厂内原料堆场、尾泥尾砂堆场、车辆行驶、破碎机产生无组织排放粉尘，厂界浓度时有超标现象发生。污染物排放情况见下表: 表6 水污染物排放情况废水名称产生量(t/a)主要污染物产生情况排放情况达标情况mg/lt/amg/lt/a生产废水660000ss200001.32万00达标生活污水204cod3000.063000.06不达标nh3-n350.006350.006ss1500.031500.03废气名称废气量(万m3/a)主要污染物产生情况排放情况达标情况mg/ m3t/amg/ m3t/a无组织排放粉尘/颗粒物301.30不达标固体废物名称产生量(t/a)处理处(置)量t/a处理(处置)情t/a/尾砂2550025500回碾或外售/尾泥95009500干化后外售/铁屑7070外售/废石碾300300用作碾底或路基/生活垃圾5.15.1交环卫部门/企业存在的主要环境问题：生活污水超标排放；企业砂石露天堆放粉尘较大且破碎机未采取有效的降尘措施，导致粉尘不能达标排放，影响该区域的大气环境。区域内的主要环境问题：由于周围石英砂生产企业较多，废水的超标排放已造成叹儿湾水渠严重淤积，同时，由于粉尘的排放量较大，造成区域内pm10超标。社会环境、自然环境简况自然环境简况（地形、地貌、地质、气候、气象、水文、植被等）：1、地理位置与地形地貌/县地处安徽省东北部，淮河中游南岸，隶属于滁州市，地理坐标为东经1171011913和北纬31513313之间。北邻蚌埠市，西与淮南市接壤，东距南京150公里，南到省会合肥市130公里，地理位置优越，交通便捷。现辖15个乡镇、198个行政村，73.5万人，面积1949.5平方公里，耕地108万亩。本项目位于/县大庙镇希望村（项目地理位置图见附件2）。2、地质条件/县大地构造位于中朝准地台南东边部，地处淮河台坳南部的次级单元蚌埠台拱和淮南断陷带东部，它们之间以刘府深断裂为界，为安徽境内最原始的陆壳地区之一。境内地层为华北地层区淮南地层小区。地层发育主要有上太古界、下元古界、上元古界、下古生界及中生界、新生界。/县地势南高北低，南部以侵蚀剥蚀山、丘陵为主，山丘麓部为起伏岗地，中部为微波状起伏的河流阶地和岗地，北部为坦荡的冲积平原。地面高程，逐级由南向北下降，南北地面总比降1/600左右。地貌组合比较简单。3、气候、气象条件/县处于中国东部湿润季风区内，淮河以南属北亚热带，淮河以北属于暖温带，处在北亚热带向暖温带渐变的过渡带内，气候具有明显的过渡性特点，其表现为终年气候温和，四季分明，光照充足，水热同季，干冷同期，无霜期较长，但雨量季节分配不均且略显不足。/年均气温14.9摄氏度，最热的7月份平均气温27.9摄氏度，最冷的一月份平均气温0.9摄氏度；年降雨量904.4毫米，年蒸发量1609.7毫米；无霜期212天，初霜期为十月三日，终霜期为四月一日；大于10摄氏度以上积温为4516-4700之间，年日照时数2248.7小时，年辐射总量为121.6千卡/平方厘米。4、水文条件境内有淮河、濠河、小溪河、板桥河、窑河、天河等8条河流，总长325.3公里，年均过境水量264.78亿立方米。淮河在境内属中游下段，上接蚌埠市自陆台子入境，呈北西至南东向，至临淮关改西南至北东向，下经花园湖口枣巷渔业乡附近出境，泄入洪泽湖，境内流程52.5公里，河床平缓，平均纵比降0.18。淮河是一条担负着工农业用水、航运、生活饮用等作用的主要河流，多年平均流量为852m3/s，水位主要受洪泽湖大闸的控制，正常水位为14.24米。濠河发源于/山北麓，自南向北，横贯本县中部，至临淮关入淮河，为境内最大的河流，全长50公里，流域面积621平方公里。濠河主要功能为灌溉和纳污，多年平均流量为11.7m3/s，旱季常断流。全县有鹿塘、官沟、/山、燃灯寺四座中型水库和花园湖、月明湖、方丘湖、老塘湖四座湖泊，总库容2.65亿立方米；小型水库134座和塘坝总库容6491立方米；建有固定机电排灌站155处，装机129台套、2.75万千瓦，基本形成了引、蓄、提、防、排相结合的水利格局。5、矿产资源/矿产资源丰富，境内已探明的有石灰石、石英石、大理石、蛭石、石棉、白云石、金、银、铜、铁、锰、钼、锌等矿种达26种，其中石灰石、石英石远景储量分别为100亿吨和50亿吨，储量、品位均居华东地区之首。目前，全县从事“两石”开采、加工、经营的企业300多家，年产各种型号石英砂500万吨、水泥300万吨。6、生态环境/县在安徽省植被分区中属北亚热带落 叶阔叶与常绿阔叶混交林带、江淮分水岭以北的植被片。地带性植物以落叶树种为主。由于长期的农业生产活动，自然植被已残留不多。本地区除工业建设用地外，多为农田耕地和村庄，为农田围合的乡村自然地貌景观，有较好的植被，主要是人工栽培的植物。农作物有稻、麦、油料和蔬菜等，由于耕作年代悠久，土壤肥力较高。7、地震/地处华北、扬子地台两个地史发展特点不同地块相交部位。在地质发展过程中，经历了多次构造运动，有着复杂的地质构造格局，属于中等地震活动区。地震基本烈度为7度。社会环境简况（社会经济结构、教育、文化、文物保护等）：1、经济和社会概况本项目位于/县大庙镇，2008年/县实现地区生产总值63.6亿元，同比增长14%，经济总量和增幅均居全市第二位；财政收入连续跨越4亿和5亿元两个台阶，达到5.01亿元，同比增长31.8%；完成固定资产投资45.6亿元，同比增长40.5%；实现进出口总额1500万美元，同比增长70.5%；农民人均纯收入4448元，同比增长21.8%；城镇在岗职工年均工资20080元，同比增长20%。2008年全县共引进各类投资项目241个，协议引资176.5亿元，实际到位资金46.8亿元，同比增长40.3%，占目标任务的103%，连续四年获全市二等奖。全县立足资源和产业抓招商，围绕/丰富的资源优势和培育壮大三大主导产业的目标，先后引进了安徽力华光电玻璃公司高硼硅太阳能玻璃管和太阳能热水器、安徽晶源太阳能材料公司超白浮法玻璃、珍珠水泥集团投资的2条新型干法水泥熟料生产线等一批工业项目。强化农业基础地位，大力发展现代农业。始终把农业摆在重要的基础地位来抓，扎实推进新农村建设。全面落实各项惠农政策，保护和调动农民生产积极性。认真实施惠民直达工程，及时、足额发放惠农资金2.12亿元。大力开展小麦高产攻关活动、水稻产业提升行动和玉米振兴计划，发展农业机械化，粮食产量再创历史新高，总产量达70万吨，同比增长17.9%。积极发展特色农业，努力提高农业效益。坚持因地制宜，推进一乡一业、一村一品建设，小岗村的双孢蘑菇，大王府的蔬菜、苗木，晏公村的花生加工，蒋庄村的油茶等特色农业规模不断扩大。通过认真落实财政贴息贷款和能繁母猪补贴等优惠政策，加大农业招商力度，标准化规模养殖发展迅速，全县新建标准化养猪小区36个、肉牛养殖小区5个、家禽养殖小区18个。三是培育壮大龙头企业，提升产业化水平。新增了2家省级、3家市级农业产业化龙头企业，省级龙头企业达6家，市级龙头企业达13家，带动能力进一步增强。四是积极开展技能培训，努力培育新型农民。大力实施“阳光工程”和就业技能培训，全年共培训4816人，实现了转移劳力由体力型向技能型转变。2、科教文卫社会事业 教育、医疗卫生事业稳步发展。境内设有本科院校1所、专科学校2所、普通中学49所、高级中学2所、职业中学3所、小学304所、幼儿园55所；医疗卫生机构有县一院、二院和10所中心卫生院、25所乡镇卫生院，2003年/被列为全省新型农村合作医疗制度改革试点县。通讯、电视事业发展迅速。除有线电话通村外，移动通讯信号覆盖全县；有线电视信号传输到千家万户，文艺节目丰富多彩。金融、保险业协调进步。社会治安状况良好，人民安居乐业，社会文明祥和。4、基础设施/县交通条件方便快捷。境内铁路（京沪线、淮南线）、公路（蚌宁高速、合徐高速、合蚌104国道）、水路（淮河105华里黄金水道）四通八达，距蚌埠机场仅20分钟路程。在城镇基础设施建设方面，以规划统筹城乡发展。2008全县城镇基础设施建设投入近5亿元，旧城改造步伐加快，城市新区拉开了框架。其中，凤临路、高速公路连接线、商业步行街、西禁垣路一期、东华东路、城市污水处理厂及管网等重点建设项目已经完工；长安街、午门路、朝阳路、南门路、/商贸城等一批重点建设项目正在加快推进。坚持城乡统筹，城镇化率达到38%，比上年增加6个百分点。5、文物及风景名胜保护/名胜古迹众多，旅游资源开发潜力巨大。明中都皇故城及明皇陵石刻为全国重点文物保护单位，明中都鼓楼、古钟离子城遗址、龙兴寺、禅窟寺摩崖石刻、陈德墓及石马金石刻为安徽省重点文物保护单位。还有庄子、惠子观鱼谈乐的庄惠濠梁观鱼台，苏东坡题名的禅窟寺、玉蟹泉以及韭山洞古战场遗址等一百多处。以韭山洞景区、禅窟寺景区和卧牛景区为中心的自然景观集青山、绿水、秀湖、奇洞、古寺于一体，是以观赏湖光山色、溶洞奇观、凭吊遗迹遗址，开展水上游乐、森林度假等内容为主的风景区。1988年被批准为安徽风景名胜区，1993年被林业部批准为韭山国家森林公园。另外，古驿站（濠梁驿、红心驿、王庄驿）、古道（楚汉相争古道、京京古道、凤御道、凤王道）、古桥（广运桥、升仙桥、九虹桥）、名山（凤凰山、万岁山、日精山、月华山、独山）、/八景（谯楼归市、九华屏障、龙兴晚钟、明陵风雨、蚌埠珠流、濠梁观鱼、浮桥烟锁、钓台春涨）等遗址均有旅游开发价值。该建设项目周边1km范围内无历史及风景名胜保护单位环境质量状况建设项目所在地区域环境质量现状及主要环境问题1、大气环境质量现状该区域大气环境中的二氧化硫（so2）、氮氧化物（nox）浓度均符合环境空气质量标准（gb3095-1996）中二级标准限值的要求。由于周围石英砂生产企业较多，粉尘的排放量较大，造成区域内pm10超标。2、地表水环境质量项目所在地纳污水体为濠河，濠河发源于/山北麓，自南向北，横贯本县中部，至临淮关入淮河，为境内最大的河流，全长50公里，流域面积621平方公里。濠河主要功能为灌溉和纳污，多年平均流量为11.7m3/s，表水水质符合地表水环境质量标准（gb3838-2002）中类水标准。3、声环境质量该项目地区域声环境质量符合声环境质量标准（gb3096-2008）中3类标准（昼间65db(a)、夜间55db(a)）。 4、生态环境项目所在地地带性植被属落叶林带，由于长期的农业生产活动，自然植被已残留不多。多为农田耕地和村庄，为农田围合的乡村自然地貌景观，主要是人工栽培的植物。农作物有稻、麦、油料和蔬菜等，生态环境一般。主要环境保护目标（列出名单及保护级别）：1、保证建设项目所在地不因本项目建设而降低现状环境质量。2、项目地周边无自然保护区、风景名胜区和文物古迹等特殊保护对象，根据该项目特点及周围环境调查，项目地周围环境敏感目标及环境保护级别见下表。表8 主要环境保护目标及保护级别环境要素环境保护目标位置距离（m）规模、功能保护级别大气环境杨圩村村南100030户环境空气质量标准中二级标准水环境杨圩村农灌渠s20小河支流地表水水体质量不被降低声环境厂界外1m声环境质量标准3类标准评价适用标准环境质量标准1、大气环境质量标准见表9。 表9 大气环境质量标准 单位：mg/m3污染物名称取值时间浓度限值标准来源so2年平均0.06环境空气质量标准（gb3095-96）二级标准日平均0.151小时平均0.50pm10年平均0.10日平均0.15no2年平均0.08日平均0.121小时平均0.242、濠河执行地表水环境质量标准(gb3838-2002) iv类水质标准，见表10。 表10 地表水环境质量标准限值 单位：除ph外为mg/l类别phcodcrbod5高锰酸盐指数氨氮iv6-9306101.53、声环境执行声环境质量标准（gb3096-2008）3类区标准，见表11。表11 声环境质量标准 等效声级 laeq:db类别昼间夜间36555污染物排放标准1、废水排放执行污水综合排放标准（gb8978-1996）二级标准。具体见表12。表12 污水综合排放标准 单位：mg/l 标准值污染因子污水综合排放标准二级标准ph69cod150mg/l*ss300mg/l氨氮25mg/lbod530mg/l动植物油15mg/l注：*ss执行采矿、选矿、选煤工业标准2、粉尘排放执行gb16297-1996大气污染物综合排放标准无组织排放监控浓度限值标准。 表13 废气排放标准值 单位：mg/m3污染物名称浓度限值(mg/m3)标准来源粉尘1.0大气污染物综合排放标准无组织排放监控浓度限值标准3、运营期厂界噪声执行工业企业厂界环境噪声排放标准(gb12348-2008)中的3级标准 表14工业企业厂界环境噪声排放标准 等效声级 leq db（a）类别昼间夜间标准来源36555工业企业厂界环境噪声排放标准3级标准总量控制指标建设项目工程分析一、生产工艺流程图： 破碎 粉尘、噪声粉尘输送带 水洗泥尾泥、废水粉尘输送带料仓噪声 水水 碾磁 选 铁屑脱 泥尾泥、废水 水分级尾砂、废水 废水、粉尘成品沥干废包装袋包 装出厂图1 生产工艺流程及产污节点图二、生产工艺流程简述：矿石经铲车运送至破碎机处破碎，破碎后的砂石通过输送带送至水分离机，在水分离机中通过水流将泥沙从砂石中洗脱出来。洗泥后的砂石通过输送机运至料仓，砂石通过料槽滑落到水碾处由水碾再次粉碎。在石碾粉碎砂石的同时加水，粉碎的石英砂随水经格网流到水槽中。在水槽内，废水中的石英砂经磁选去除铁屑，再由砂泵将废水连同石英砂提升到分级系统顶部，废水中的石英砂依次经粗细二级分离器，连续两次分级后的石英砂下料到成品库沥干，沥干后的石英砂按用户要求包装出厂。分离器排出的尾砂部分返回水碾机重新加工，部分作铸造用砂。尾砂、尾泥排出的废水进入废水处理系统，经絮凝、沉淀后循环使用。主要污染工序：一、施工期本项目已建成，施工期已结束。二、营运期主要污染物有废水、粉尘、噪声和固废等，主要污染工序有：1、废水本项目生产用水采用闭路循环使用，废水主要来自职工办公与生活废水、食堂废水及冲洗废水。主要污染物为cod、bod5、ss、nh3-n、动植物油等。2、废气本项目废气主要来源有：（1）粉尘：原料堆放、输送、破碎过程中无组织排放的粉尘；（2）食堂油烟：本项目建有厂内职工食堂,用餐员工按30人计算，食堂采用液化气为燃料，食堂年产生油烟量为8.16kg/a，油烟浓度为2.4mg/m3。3、噪声本项目营运期噪声源主要是破碎机、水碾、装载机、运输车辆、水泵等设备产生的噪声，噪声值一般在75105db（a）之间。4、固体废物项目产生的固体废弃物主要是：自生产过程中废石碾、磁铁粉、尾泥；：职员办