浅谈如何加强企业安全管理工作

“安全生产,责任重于泰山”,这是时常挂在人们嘴上的一个话题。但是,仍然有很多无辜的生命被火灾、爆炸、中毒等接连不断的工业事故所吞噬。因此,加强企业的安全管理工作刻不容缓。     

油田企业安全文化建设亟需解决的几个问题及对策

油田企业生产工作具有点多、线长、面广、庞杂、易燃易爆、有毒有害、高温高压、连续作业等特点,安全生产管理难度相当大,若稍有不慎,就会酿成大的事故.因此,避免或减少重大事故的发生是油田企业安全文化建设的重要目标.20世纪90年代,随着HSE管理体系引入中国,国内油田企业相继建立了HSE管理制度,并把HSE安全管理体系作为企业安全文化建设的主要载体.但油田企业安全文化建设仍存在误区,完全文化建设体系亟需进一步完善.     

The adsorptive capacity of vapor-phase mercury chloride onto powdered activated carbon derived from waste tires

Injection of powdered activated carbon (PAC) upstream of particulate removal devices (such as electrostatic precipitator and baghouses) has been used effectively to remove hazardous air pollutants, particularly mercury-containing pollutants, emitted from combustors and incinerators. Compared with commercial PACs (CPACs), an alternative PAC derived from waste tires (WPAC) was prepared for this study. The equilibrium adsorptive capacity of mercury chloride (HgCl2) vapor onto the WPAC was further evaluated with a self-designed bench-scale adsorption column system. The adsorption temperatures investigated in the adsorption column were controlled at 25 and 150 degrees C. The superficial velocity and residence time of the flow were 0.01 m/sec and 4 sec, respectively. The adsorption column tests were run under nitrogen gas flow. Experimental results showed that WPAC with higher Brunauer-Emmett-Teller (BET) surface area could adsorb more HgCl2 at room temperature. The equilibrium adsorptive capacity of HgCl2 for WPAC measured in this study was 1.49 x 10(-1) mg HgCl2/g PAC at 25 degrees C with an initial HgCI2 concentration of 25 microg/m3. With the increase of adsorption temperature < or = 150 degrees C, the equilibrium adsorptive capacity of HgCl2 for WPAC was decreased to 1.34 x 10(-1) mg HgCl2/g PAC. Furthermore, WPAC with higher sulfur contents could adsorb even more HgCl2 because of the reactions between sulfur and Hg2+ at 150 degrees C. It was demonstrated that the mechanisms for adsorbing HgCl2 onto WPAC were physical adsorption and chemisorption at 25 and 150 degrees C, respectively. Experimental results also indicated that the apparent overall driving force model appeared to have the good correlation with correlation coefficients (r) > 0.998 for HgCl2 adsorption at 25 and 150 degrees C. Moreover, the equilibrium adsorptive capacity of HgCl2 for virgin WPAC was similar to that for CPAC at 25 degrees C, whereas it was slightly higher for sulfurized WPAC than for CPAC at 150 degrees C.     

基于SWAT模型的瀼渡河生态流量计算方法

保障和管理河湖生态流量是加强水资源开发利用管控的基本要求,是实施长江大保护和高质量发展的重要内容.以瀼渡河为例,提出了针对无实测流量的河流推算生态流量的方法.首先,利用SWAT水文模型模拟得到1990—2019年30年逐月流量过程,表明该河流流量由上游至下游逐渐增大,且具有明显的汛期和非汛期特征;其次,采用蒙大拿法、最...     

铜渣催化H2O2氧化处理棉浆黑液

采用铜渣催化H2O2类Fenton氧化反应处理棉浆黑液,研究了酸析pH、H2O2投加量、铜渣投加量对棉浆黑液COD和TOC去除率及溶出Fe2+质量浓度的影响,考察了铜渣重复使用性能,讨论了铜渣催化作用机制.结果表明:在酸析pH为2、H2O2投加量为25 mmol/L、铜渣投加量为2.5 g/L条件下,反应180 min...     

空地协同模式在城市水环境监测中的应用研究

传统水质监测方法耗时且费力，而基于高光谱的水质监测技术可实现对水质的快速、直观、原位监测。以扬州古运河三湾段为研究区域，基于无人机高光谱成像仪与水质走航监测船相配合，采用空地协同模式和偏最小二乘回归算法对总磷（TP）、总氮（TN）、氨氮（NH₃-N）、高锰酸盐指数（I_Mn）4个水质参数进行定量反演研究。结果表明：该反演模型的决定系数（R²）为91%～97%；拟合效果依次为NH₃-N＞I_Mn＞TN＞TP；各指标反演误差绝对值为0.2%～4%。该方法具有较好的反演效果，可快速、准确地获取城市河道水质分布情况，适用于城市水环境监测。     

Eco-industrial parks: national pilot practices in China

China has rapidly developed a number of Eco-industrial parks (EIPs) in recent years. In order to promote and regulate their development, two government agencies, the Ministry of Environmental Protection and the National Development and Reform Commission are currently engaged in promoting national pilot EIP programs. Both agencies have developed their own management systems, and 60 industrial parks have been approved for construction of national pilot EIPs, among which six parks appear in both lists of the two agencies. This article introduces the practice of the national pilot EIPs. It first describes the management systems and achievements within the two programs, and then summarizes the problems encountered thus far in program implementation. Finally it proposes brief suggestions for future development of EIPs.     

农业现代化、信息化与农业面源污染研究

利用2003年-2013年中国30个省份的面板数据,检验了农业现代化、信息化与农业面源污染之间的关系.研究发现,农业现代化对农业面源污染有着一定的加重作用;信息化能够有效缓解因农业现代化所导致的农业面源污染,这一现象在粮食主产省同样存在,说明信息化能够发挥减污增绿的作用;农业环境库兹涅茨曲线(EKC)也得到验证.因此,应进一步推进信息化发展,有效利用信息化对农业现代化所致农业面源污染的缓解作用,还应多措并举促进农民增收,加快农民收入越过EKC曲线拐点.