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某石化厂将原有3.9万t/a的丁基橡胶生产能力扩大为4.5万t/a,对现有的生产装置进行改造。生产单元在乙烯、丙烯和氯甲烷压缩机不动的前提下,增加1台聚合釜及其配套设施。尾气处理单元配套建设1套氯甲烷处理设施。改扩建工程的主要原料为异丁烯和异戊二烯,年运行时间为8000h。丁基橡胶是在很低的温度(-100℃)下操作和半连续生产条件下由异丁烯和异戊二烯聚合得到,催化剂为无水三氯化铝的氯甲烷溶液,生成的含丁基橡胶粒的聚合液进入脱气釜,经汽提分离、脱水后,挤压膨胀干燥、压块、包装出厂。改扩建前后的物料平衡和公用工程如表2和表3所示。 表2 改扩建前后的物料平衡 入方/(t/a) 出方/(t/a) 物料名称 改造前 改造后 物料名称 改造前 改造后 异丁烯 44176 51072 丁基橡胶 39000 45000 异戊二烯 1155.2 1350.4 回收异丁烯 5394 6293.6 三氯化铝 32.96 38.4 重组分 120 160 溶剂油 90.4 90.4 轻组分 451.84 564.8 硬脂酸钙 43.76 60 废胶液 90.4 90.4 防老剂 50.4 90.4 废胶粒 180 208 — — — 烯烃废气 133.12 166.4 — — — 无组织排放 合计 — — 合计 — — 表3 改扩建前后的公用工程 公用工程 改造前 改造后 循环水/(tha) 5500 5500 新鲜水/(t/h) 15 10 3.0MPa蒸汽/(t/h) 98.48 113.63 仪表空气/(t/h) 1.5 0.232 氮气/(t/h) 0.421 0.456 电/[(kW·h)/h] 4259 4 999 [问题] 在表2的出方中,有哪些危险废物应如何处置

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某汽车生产公司现有厂区位于市区北部,拥有2万辆小型汽车生产能力,拟投资30亿元新建年产8万辆小型汽车生产线,新厂区位于某市工业开发区内,地形简单,位于环境空气质量功能二类区,距市中心约15km。主要工程内容包括冲压车间、焊接车间、涂装车间、总装车间,以及配套的仓储物流、研发中心、办公楼等工程。在该生产项目投产后(2年建设期)淘汰现有厂区所有落后生产设备,现有厂区按照城市规划将建设为住宅区。 新建生产线主要原辅料消耗是冷轧汽车板、溶剂和涂料等,其中溶剂和涂料年用量2000 t(甲苯平均含量1.8%,二甲苯平均含量9.2%)。涂装车间工艺和现有厂区一样,为喷漆—晾干—烘干。主要废气污染源是涂装车间的烘干室、晾干室和喷漆室产生的含有机物的废气,主要污染物是甲苯和二甲苯,其中,喷漆室废气采用水旋喷漆室进行净化,废气中的漆雾分别经水幕阻挡和吸收过滤去除后,经风机从排气筒排放至室外,漆雾净化的循环水中加入了漆的凝聚剂,净化率>80%,外排二甲苯19.6t/a,甲苯量5.2t/a;烘干室排出的热废气进入燃烧装置,燃烧装置对有机物的净化率>90%,外排二甲苯7t/a,甲苯量0.6t/a;晾干室二甲苯排放量12.8t/a,甲苯3.5t/a,直接通过管道送排气筒外排。以上废气汇合后均经过1根28m高排气筒外排,废气总量30万m3/h,年运行时间300天,每天工作24小时。本项目生产工艺废水主要来自涂装车间,包括脱脂清洗废水、磷化清洗废水、电泳清洗废水和喷漆废水,主要污染物为COD、石油类、总镍、总锌和六价铬,排入厂区污水综合处理站与其他废水混合后,经生化处理进入城市污水处理厂,产生的工业固体废物有漆渣、磷化滤渣,污水处理站的污泥。目前,现有厂区COD排放总量尚不能满足当地环保局批复的总量指标,待新厂建成后,老厂区全部淘汰可满足总量要求。 [问题] 该厂在污水综合处理站出口设置了在线监测装置,请问该厂生产废水处理及监控方案是否可行如果处理达标,最终排水应执行什么标准

某南方城市拟建一个氯化法钛白粉厂,其工艺产生的氯化废渣被鉴定为危险废物,按照国家要求,需要建设危险废物安全填埋场,来处置该项目产生的需要填埋处理的约20000t危险废物。该填埋场的主要建设内容包括:运渣道路、拦渣坝、渗滤液收集处理系统、拦污坝、库区防渗防洪系统、地下水监测井等。安全填埋场容积要求大于50万m3,服务期限30年。建设单位经踏勘、调查,提出2个拟选安全填埋场场址备选(表1)。 表1 备选场址情况 选址方案 选址一 选址二 周围情况 冲沟下方400m有一个村庄,上方有一个小水库 冲沟下方960m有一个村庄 交通 距离公路500m,交通便利 距离公路1500m 距离 距厂址1200m 距厂址2000m 地形 I型山谷 Y型山谷 地质 无不良地质构造 无不良地质构造 容积 60万m3 75万m3 气候 主风向西南风 主风向西南风 敏感情况 北距某风景区2.5km 东距某小学1.7‰ [问题] 安全填埋场服务期满并封场后,应采取哪些环境管理措施

Which Corporate Direct service is expending most rapidly

A. the car rental scheme
B. the company magazine
C. the currency exchange service

The current political debate over family values, personal responsibility, and welfare takes for granted the entrenched American belief that dependence on government assistance is a recent and destructive phenomenon. Conservatives tend to blame this dependence on personal irresponsibility aggravated by a swollen welfare apparatus that saps individual initiative. Liberties are more likely to blame it on personal misfortune magnified by the harsh lot that falls to losers in our competitive market economy. But both sides believe that the "winners" in America make it on their own that dependence reflects some kind of individual or family failure, and that the ideal family is the self-reliance unit of the traditional lore--a family that takes care of its own, carves out a future for its children, and never asks for handouts. Politicians at both ends of the ideological spectrum have wrapped themselves in the mantle of these "family values", arguing over why the poor have not been able to make do without assistance, or whether aid has worsened their situation, but never questioning the assumption that American families traditionally achieve success by establishing their independence from the government. The myth of family self-reliance is so compelling that our actual national and personal histories often buckle under its emotional weight. "We successors always stood on our own two feet," my grandfather used to say about his pioneer heritage, whenever he walked me to the top of the hill to survey the property in Washington State that his family had bought for next to nothing after it had been logged off in Se early 1900s. Perhaps he didn’t know that the land came so cheap because much of it was part of a federal subsidy originally allotted to the railroad companies, which had received 183 millions acres of the public domain in the nineteenth century. These federal giveaways were the original source of most major western logging companies’ land, and when some of these logging companies moved on to virgin stands of timber, federal lands trickled down to a few early settlers who were able to purchase them inexpensively. Like my grandparents, few families in Americans history--whatever their "values"--have been able to rely solely on their own resources. Instead, they have depended on the legislative, judicial and social-sup-port structures set up by governing authorities, whether those were the clan elders of Native American societies, the church courts and city officials of colonial America, or the judicial and legislative bodies established by the Constitution. At America’s inception, this was considered not a dirty little secret but the norm, one that confirmed to social and personal interdependence. The idea that the family should have the sole or even primary responsibility for educating and socializing its members, finding them suitable work, or keeping them from poverty, and crime was not only ridiculous to colonial and revolutionary thinkers but also dangerously parochial. Conservatives believe that welfare services have played a certain role in ______ .

A. heightening individual or family dependence on government assistance
B. modulating individual or family dependence on government assistance
C. magnifying individual initiative in fighting off dependence on government assistance
D. causing political debate over personal responsibilities

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