对氨基苯甲醚废水处理

对氨基苯甲醚生产中排放的废水经物化前处理后,利用二氧化氯为氧化剂,在自制催化剂存在的条件下将废水中的有机物氧化分解,使CODCR去除率≥70％,色度去除率≥85％,硝基苯去除率≥85％,挥发酚去除率≥80％,氧化处理后再进行生化处理,该废水可以达标排放。     

A feasibility study on the predictive emission monitoring system applied to the Hsinta power plant of Taiwan Power Company

The continuous emission monitoring system (CEMS) can monitor flue gas emissions continuously and instantaneously. However, it has the disadvantages of enormous cost, easily producing errors in sampling periods of bad weather, lagging response in variable ambient environments, and missing data in daily zero and span tests and maintenance. The concept of a predictive emission monitoring system (PEMS) is to use the operating parameters of combustion equipment through thermodynamic or statistical methods to construct a mathematic model that can predict emissions by a computer program. The goal of this study is to set up a PEMS in a gas-fired combined cycle power generation unit at the Hsinta station of Taiwan Power Co. The emissions to be monitored include nitrogen oxides (NOx) and oxygen (O2) in flue gas. The major variables of the predictive model were determined based on the combustion theory. The data of these variables then were analyzed to establish a regression model. From the regression results, the influences of these variables are discussed and the predicted values are compared with the CEMS data for accuracy. In addition, according to the cost information, the capital and operation and maintenance costs for a PEMS can be much lower than those for a CEMS.     

离子色谱法替代铬酸钡光度法测定硫酸根可行性探讨

探讨了以清洁水质和标准样品为实验对象，分别采用离子色谱法和铬酸钡光度法进行对比实验，根据实验结果证明了用离子色谱法替代铬酸钡光度法测定硫酸根离子可行性。     

Cooling Suits,Physiological Response,and Task Performance in Hot Environments for the Power Industry

Heat stress on workers working outdoors in the power industry may result in fatigue and deterioration in task performance. This research collected and analyzed data on task performance of workers working indoors and outdoors with and without a cooling suit. The task performance was compared on the basis of heart rate, oxygen consumption, tympanic temperature, subjective responses, productivity, and error rates. Based on One-Way Analysis Of Variance (ANOVA) results, a significantly lower estimated working oxygen consumption was observed (p < .001) when the cooling suit was worn. The productivity was higher while workers wore the cooling suit as compared to no cooling suit (p = .011) whereas the error rates were significantly lower(p < .001). Also a significantly lower self-reported discomfort was observed in the neck and shoulders while working wearing the cooling suit (p = .004). This study concluded that wearing a cooling suit while working outdoors was associated with physiological benefits as well as improved task performance of the study participants.     

Development pattern and enhancing system of automotive components remanufacturing industry in China

Along with the increasing number of automotive output and End-of-Life vehicles (ELVs) in China, resources shortage and environmental pollution are aggravating, so the tremendous need to reuse automotive components gives birth to the industry. The Chinese government becomes to realize that it is necessary to build a conservation-oriented and environment-friendly harmonious society. As the ultimate form of recycling, remanufacturing will be an effective method to promote the development of Chinese circular economy. The automotive remanufacturing industry in China is just at the preliminary stage, this paper presents some problems before remanufacturing, during remanufacturing and after remanufacturing, and then it points out several barriers, such as restrictive policies and regulations, consumer acceptance, scarcity of technologies, etc. Like many other developed countries, Chinese remanufacturing industry will also experience the primary stage, growth stage and developed stage. while the emphasis of resources input will not be the same. By analyzing the resources input characteristics at different development stages, three development patterns, such as the Government Incenting Pattern, Technology Driving Pattern and Market Leading Pattern, are put forward. At present, the cooperation of the government, industry, universities and research institutes, etc, will jointly construct the enhancing system of automotive components remanufacturing industry in China. Finally, it concludes with a summary and some suggestions in the field.     

Lack of mtDNA and morphological differentiation between two acorn barnacles <Emphasis Type="Italic">Tetraclita japonica</Emphasis> and <Emphasis Type="Italic">T. formosana</Emphasis> differing in parietes colours and geographical distribution

Tetraclita japonica and T. formosana are common intertidal barnacles with similar morphology, which leads to uncertainty in their species status. In the present study, we try to elucidate the taxonomic status of the two taxa using morphology and mitochondrial control region and cytochrome c oxidase subunit I (COI) sequences of the barnacles in their distribution range. The two taxa were found to be morphologically similar; a diagnostic difference between them was only observed in the colour of the parietes and opercular plates. Little genetic differentiation was detected in the control region and COI (Φ_CT < 0.025 for both markers) between two taxa, but differentiation was found between the southern (Taiwan and Hong Kong) and northern (Japan) populations of T. japonica/T. formosana, which might be the result of isolation by distance and upwelling in summer. Our data suggest that the two presently recognized species probably represent two colour morphotypes of the same species exhibiting different geographical distribution. T. japonica is abundant in Japan and southeast coast of China, whereas T. formosana is only abundant in Taiwan. The heterogeneous environment might exert a divergent selection pressure leading to asymmetric distribution of the two colour morphotypes. The different colours might be a result of either phenotypic plasticity adaptive to environmental variables or genetic hitchhiking of local adaptive genotypes. Electronic supplementary material Supplementary material is available in the online version of this article at and is accessible for authorized users.     

Assessment of the use of spent copper slag for land reclamation.

The shortage of waste landfill space for waste disposal and the high demand for fill materials for land reclamation projects in Singapore have prompted a study on the feasibility of using spent copper slag as fill material in land reclamation. The physical and geotechnical properties of the spent copper slag were first assessed by laboratory tests, including hydraulic conductivity and shear strength tests. The physical and geotechnical properties were compared with those of conventional fill materials such as sands. The potential environmental impacts associated with the use of the spent copper slag for land reclamation were also evaluated by conducting laboratory tests including pH and Eh measurements, batch-leaching tests, acid neutralization capacity determination, and monitoring of long-term dissolution of the material. The spent copper slag was slightly alkaline, with pH 8.4 at a solid : water ratio of 1 : 1. The batch-leaching test results show that the concentrations of the regulated heavy metals leached from the material at pH 5.0 were significantly lower than the maximum concentrations for their toxicity limits referred by US EPA's Toxicity Characteristic Leaching Procedure (TCLP). It was also found that the material is unlikely to cause significant change in the redox condition of the subsurface environment over a long-term period. In terms of physical and geotechnical properties, the spent copper slag is a good fill material. In general, the spent copper slag is suitable to be used as a fill material for land reclamation.     

2016年夏季南京大气污染特征观测分析

为研究南京夏季大气复合污染的特征,2016年8月15日~9月15日期间开展了强化观测实验,本文利用仙林、鼓楼80m楼顶2个站点的强化观测资料,结合草场门常规监测资料,统计分析了南京不同地区夏季O₃和颗粒物（PM_2.5、PM₁₀）的浓度特征和相关性,以及郊区水溶性离子与其气态前体物的转化率变化特征.研究表明：3个站点O₃平均小时浓度为100.3μg/m³.PM_2.5和PM₁₀浓度分别为41.1和67.8μg/m³,郊区夜间存在颗粒物浓度高值.SO₄^2-、NO₃^-、NH₄⁺浓度总和占PM_2.5浓度的比值达到61%,OC（有机碳）/EC（元素碳）比值范围为0.8~4.0,日均值超过2.0的天数占77%,城、郊均存在二次污染.白天O₃与颗粒物（PM_2.5）浓度呈显著正相关变化,硫转化率（SOR）、氮转化率（NOR）分别与O₃浓度、湿度显著正相关.HONO主要在夜间积累,HCl和HNO₃浓度峰值出现在下午.与其它无机盐相比,NH₄⁺在总氨中所占比例明显偏低,大气中的氨主要以气态NH₃存在.观测期间O₃污染较重,O₃与颗粒物的正相关关系显著,化学反应在颗粒物积累过程中具有重要贡献,此外还可能存在城区向郊区的污染输送.