文档介绍：本科毕业设计(论文) BTF 系统处理硫化氢废气工程设计学院环境科学与工程学院专业环境工程年级班别 200 7 级( 1 )班学号 31 64 04008168 学生姓名张帆指导教师黄树杰(校外)陈凡植 2011 年6月设计总说明随着生活水平的提高,人们对环境质量的要求越来越高,对恶臭问题也更加敏感。恶臭物质尤其是含硫物质来源极广,毒性极大,其中以 H 2S 最为常见,低浓度的 H 2S 就具有强烈的恶臭气味,它不仅直接危害人体健康,而且在有氧和湿热的条件下,严重腐蚀设备、管道和仪表等。另外,它在空气中易被氧化为二氧化硫,转化为硫酸导致酸雨。所以,净化硫化氢臭气已成为国民经济、环保领域中迫切需要解决的问题。目前去除 H 2S 的方法有物理法、化学法和生物法,其中由于生物法具有设备简单、能耗低、产生二次污染的可能性小等优点已成为国内外恶臭防治研究与应用中的主流方法。在某炼油厂建立的生物滴滤池去除恶臭废气工程装置中,恶臭成分主要是 H 2S,同时含有甲苯及四氢呋喃等气态有机物。设计进气量为 14200m 3 /h,有效 EBRT 为 ,当 H 2S进气浓度为 ~ mg/m 3、 mg/m 3时,H 2S 去除率保持在 ~% 之间,平均去除率为 %;去除负荷为 ~ g/(m 3·h), 平均去除负荷为 g/(m 3·h)。技术经济分析显示,1000 m 3 2万元,每 kgH 3 元。关键词: 生物滴滤, H 2S,去除负荷注: 本设计题目来源于教师的企业科研项目, 项目名称为: 深圳石化工业废气综合治理。项目编号: 2006074 。 Design Notes The odor from sulfur hydrogen (H 2 S) is extensive and toxic even at low concentrations. Sulfur hydrogen could also damage the health of human being and corrode equipments. In addition, it can be oxidized to SO 2by oxygen and ozone, resulting in acidic rain and destroy our environment. Therefore, decreasing H 2S concentration and itsodor is in great demand in both environmental and economic aspects. Biological method, among many available ones, has great advantages to eliminate odor from H 2S because it needs simple equipment, is easy to be operated and economical without secondary pollution. According toA full-scale biotrickling filter has been set up ina refinery to treat the high concentration odor, es from the wastewater treatment plant. The performance of the reactor was continuously monitored over a period ofone year, and the paper covered 50 days ’ experimental results. The removal efficiency was maintained at the range of ~% (% in average) at an effective average empty bed gas residence time s, when the range ofH 2S inlet concentration was ~ mg/m 3 ( mg/m 3 in average), corresponding to an volumetric H 2S elimination capacity of ~ g/(m 3·h) and