地基上受化学污染发生胀害工程实例的试验研究

介绍了大冶有色金属公司饮料厂汽水车间地基土发生胀害原因的调查及试验分析,揭示了该地基土因受化学污染发生膨胀的机一,为治理已有裂缝和防止裂缝进一步发展,确保该建筑物安全使用提供了依据。     

坚决打胜安全复工复产的人民战争--广东省企业疫情防控和安全复工复产工作纪实

庚子春节前后,一场前所未有的新型庆冠状病毒肺炎疫情肆虐神州,给中国经济社会发展带来了严峻的再验。在习近平总书记的亲自指挥、亲自部署下,党和政府带领全国人民,一手抓疫情防控,一手抓安全复工复产,彰显出世界瞩目的大国担当。习近平总书记2月23日在统筹推进新冠肺炎疫情防控和经济社会发展工作部署会议上的重要讲话,为广东省安全复工复产提供了根本遵循和行动指南,给我们以巨大的鼓舞。     

脱硝性能V2O5-WO3-CeO2/TiO2催化剂的制备及其

采用一步浸渍法和分步浸渍法分别制备了V_2O_5-WO_3-CeO_2/TiO_2催化剂,考查了其脱硝性能、抗SO_2中毒性能和脱硝活性稳定性,并通过SEM、EDS、XRD、激光拉曼等技术对催化剂进行了表征。实验结果表明:分步浸渍法制备的催化剂的脱硝活性优于一步浸渍法,且抗SO_2中毒能力更强;在m(V_2O_5)∶m(WO_3)∶m(CeO_2)∶m(TiO_2)=1∶5∶10∶100时催化剂脱硝活性最佳,且具有良好的脱硝活性稳定性。表征结果显示,分步浸渍法与一步浸渍法制备的催化剂晶型结构相差不大,而分步浸渍法制备的催化剂颗粒粒径更小、更均匀,催化剂中Ce、O、V和W元素的含量更高。     

基于“3R”原则的农村生活垃圾处理模式探讨

目的分析"垃圾围村"的现状特征及原因,提出"3R"原则的农村生活垃圾处理模式,为我国关中地区农村的生活垃圾处理提供参考。方法采用问卷调查法、实地访谈。结果村民环保意识欠缺,政府治理农村垃圾的缺位,缺乏垃圾治理制度体系的管理以及不完整的市场产业链均导致农村生活垃圾治理存在问题。结论"3R"原则即资源化、减量化、生态化的处理方式是解决农村生活垃圾问题的有效途径,能广泛应用于关中地区。     

淋洗法去除城市生活垃圾堆肥中重金属

采用淋洗法研究了淋洗剂酸度、螯合剂与表面活性剂对生活垃圾堆肥中重金属的去除效果.结果表明,淋洗剂的酸度对堆肥中重金属的淋出效果不明显,螯合剂与表面活性剂的影响较为显著.随着螫合剂、表面活性剂浓度增加,Mn、Zn和Cu的淋出量有增加的趋势,当DL-苹果酸、柠檬酸浓度为30 mmol/L,Mn的淋出量分别为对照的87和22...     

Elevated radioxenon detected remotely following the Fukushima nuclear accident

We report on the first measurements of short-lived gaseous fission products detected outside of Japan following the Fukushima nuclear releases, which occurred after a 9.0 magnitude earthquake and tsunami on March 11, 2011. The measurements were conducted at the Pacific Northwest National Laboratory (PNNL), (46°16′47″N, 119°16′53″W) located more than 7000 km from the emission point in Fukushima Japan (37°25′17″N, 141°1′57″E). First detections of ¹³³Xe were made starting early March 16, only four days following the earthquake. Maximum concentrations of ¹³³Xe were in excess of 40 Bq/m³, which is more than ×40,000 the average concentration of this isotope is this part of the United States.     

Factors impacting on pharmaceutical leaching following sewage application to land

Sewage effluent application to land is a treatment technology that requires appropriate consideration of various design factors. Soil type, level of sewage pre-treatment and irrigation rate were assessed for their influence on the success of soil treatment in removing pharmaceuticals remaining after conventional sewage treatment. A large scale experimental site was built to assess treatment performance in a realistic environment. Of the factors investigated, soil type had the biggest impact on treatment performance. In particular, carbamazepine was very efficiently removed (>99%) when irrigated onto a volcanic sandy loam soil. This was in contrast to irrigation onto a sandy soil where no carbamazepine removal occurred after irrigation. Differences were likely caused by the presence of allophane in the volcanic soil which is able to accumulate a high level of organic matter. Carbamazepine apparent adsorption distribution coefficients (K(d)) for both soils when irrigated with treated sewage effluent were determined as 25 L kg(-1) for the volcanic soil and 0.08 L kg(-1) for the sandy soil. Overall, a volcanic soil was reasonably efficient in removing carbamazepine while soil type was not a major factor for caffeine removal. Removal of caffeine, however, was more efficient when a partially treated rather than fully treated effluent was applied. Based on the investigated pharmaceuticals and given an appropriate design, effluent irrigation onto land, in conjunction with conventional sewage treatment may be considered a beneficial treatment for pharmaceutical removal.     

射阳县出台镇区安监站工作制度

本刊讯 近日,射阳县出台了镇区安全生产监督管理站工作制度。制度内容共分三部分：一是明确镇区安监站的工作职责范围,将日常的监管工作内容进行细化分解,以保证职责落实到位：二是规范镇区安监站的各项工作管理制度,通过实施安全生产执法检查及隐患排查整改、安全生产例会、安全生产事故报告处理和统计分析制度、信访举报、教育培训及信息报送等制度来进一步规范镇区安监站的管理制度;三是对安全监管人员明确了“十不准”、“五禁止”的行为规范,促进安全监管人员进一步转变工作作风,提升队伍形象。     

东台市：全面部署隐患排查治理工作

根据国务院办公厅《关于进一步开展安全生产隐患排查治理工作的通知》要求,东台市全面部署安全生产隐患排查治理工作。一是确定查改的范围和对象。以化工企业、烟花爆竹、人员密集场所、特种设备检查等为重点,全面排查安全生产基本条件、制度建设、安全管理组织体系等方面存在的问题,进一步明确各有关单位的安全监管责任,进一步强化隐患的整改措施,着力防范事故发生。二是明确职责分工。按照东台市人民政府《2008年安全生产工作意见》和《东台市安全生产检查责任制规定》,在明确企业是隐患排查治理防控责任主体的同时,按照“属地管理”的原则,要求各镇各部门认真组织辖区内生产经营单位的隐患排查治理工作,各行业要严格按照其行业主管部门制定的隐患排查治理认定标准,开展排查。     

张家港市安监局深入大学城调研指导安全生产工作

为督促指导高等院校进一步加强化学实验室安全管理,强化学生实习前的安全教育,10月13日,张家港市安监局局长季洪良带队深入大学城,对江苏科技大学张家港分校和沙洲职业工学院的安全管理工作进行专题调研。调研组听取了两所高校负责人关于涉及化学实验的危化品管理情况的汇报,实地查看了江苏科技大学张家港分校即将投入使用的材料化工实验楼,要求两所院校从制度、现场、