共查询到20条相似文献,搜索用时 46 毫秒
1.
Economic projections and the growing experience with more diverse baghouse applications indicate that fabric filtration will become an even more popular type of control technology. While the fabric filter market shows signs of great promise now, an especially significant upturn is predicted within the next half dozen years when dry scrubbing becomes the primary process for combined S02 and par-ticulate control. In the interim, with more and more utility and industrial boilers gaining experience with baghouses, this control method can be expected to develop as an even more acceptable technique, especially on low S coal burning units. Nevertheless, the users stress the need for conservative planning and designing, giving extra care to start-up and maintenance procedures. 相似文献
2.
Vukovich FM 《Journal of the Air & Waste Management Association (1995)》2000,50(12):2067-2072
This study examined the spatial distribution of the weekday/weekend difference in Baltimore, MD, and vicinity. The difference in Baltimore was characterized by having approximately 39% more NOx, approximately 59% more CO, and approximately 27% more volatile organic compounds (VOCs) on the average weekday, but there was approximately 13% more O3 on the weekend day. Spatially, the difference was elongated in the northeast-southwest direction. It decreased from 13% more O3 in Baltimore to 6% at approximately 20 km west of Baltimore and to 4% at approximately 40 km south of Baltimore. It also appeared to decrease to the east, but the magnitude of the decrease could not be determined because of the lack of data east of the Chesapeake Bay. However, the difference increased to the north, reaching a value of almost 18% at a northern Delaware site. 相似文献
3.
Benoît G. P. Aymoz Vololomboahangy R. Randrianjafy Zarasoa J. N. Randrianjafy Damase P. Khasa 《Ambio》2013,42(6):767-775
We analyzed the management, resource use and conservation of the Ankarafantsika National Park (Madagascar) to develop a management plan, which provides a sustainable development strategy of the area while empowering the local residents. Using qualitative methodology we performed interviews with villagers and local organizations to assess the park’s successes and failures from local stakeholders’ perspectives. People living in a village with a permanent Madagascar National Parks (MNP) agent are more favorable to and supportive of the park conservation. People living in the park are supportive but are more divided. On the other hand, people living on the periphery of the park see conservation as more of a burden. Strategies like more equitable distribution of wealth, environment improvement and decentralization of power are discussed to achieve a more sustainable management plan based on community natural resources management. Short-term, medium, and long-term interventions from park authorities are needed to ensure the cooperation of local people in conservation endeavors. 相似文献
4.
Galchenko Alexey Vladimirovich Sidorova Elizaveta Ilinichna Sherstneva Anastasia Alekseevna Skalny Andrew Anatolevich Lobanova Julia Nikolaevna 《Environmental science and pollution research international》2022,29(6):8341-8352
Environmental Science and Pollution Research - Due to the development of the metallurgical and energy industries and the operation of incinerators, more and more environmental pollution is... 相似文献
5.
Ozone-sensitive (NC-S clone) and resistant plants (NC-R clone) of Trifolium repens and Centaurea jacea were exposed to moderate ozone concentrations in ambient air. The aim of this study was the investigation of the relation between ozone-sensitivity and leaf concentrations of antioxidants (ascorbic acid, total phenolics and total antioxidant capacity). NC-R clone showed the highest concentrations of antioxidants with 50-70% more ascorbic acid than NC-S. NC-R had about 5 times more ascorbic acid in the young leaves and 9 times more in the old leaves than Centaurea. In a fumigation experiment with acute ozone stress (100 nl L(-1)) the antioxidant levels changed profoundly. The ozone-injured leaves of NC-S had 6-8 times more total phenolics than uninjured leaves. Generally older leaves had lower antioxidant concentrations and were more prone to ozone injury than younger leaves. Ascorbic acid concentrations were closer related to the appearance of visible ozone injury than the other antioxidative parameters. 相似文献
6.
Gambino Edvige Chandrasekhar Kuppam Nastro Rosa Anna 《Environmental science and pollution research international》2021,28(24):30436-30451
Environmental Science and Pollution Research - Marine pollution is becoming more and more serious, especially in coastal areas. Because of the sequestration and consequent accumulation of... 相似文献
7.
Saxena PK Singh VP Kondal JK Soni GL 《Environmental pollution (Barking, Essex : 1987)》1989,58(4):273-280
In vitro incorporation of (14)C-glucose/acetate into lipids and (14)C-leucine into proteins by the liver of Channa punctatus, exposed to safe application rate (SAR) and sublethal (SL) concentrations of malathion and carbaryl for 30 days (mid-February to mid-March) during the preparatory phase of the reproductive cycle, declined more in the fish exposed to SL concentrations than to SAR concentrations of the pesticides. The decline in incorporation was more marked in the malathion-exposed fish, than in those exposed to was more marked in the malathion-exposed fish, than in those exposed to carbaryl. Hence, malathion is considered more toxic than carbaryl in inhibiting the de-novo synthesis of lipids and proteins by the liver. 相似文献
8.
Liu YH Xie R Guo YR Zhu GN Tang FB 《Journal of environmental science and health. Part. B》2012,47(5):475-483
The effectiveness of homologous and heterologous formats in a nanocolloidal gold-based immunoassay for pesticide residue determination was investigated. Parathion, one of the most toxic organophosphorus pesticides, was used as the target analyte. One-step homologous and heterologous test strips based on a nanocolloidal gold-labeled monoclonal antibody were developed for the rapid detection of parathion residues. The results showed that the heterologous format was more effective than the homologous format, being more sensitive, more specific to parathion and more tolerant of matrix interferences. The best competitive hapten was found to have a moderate heterology and the opposite electronic distribution to the immunizing hapten. The detection limits for parathion using the preferred heterologous strip were 1 μg/L in water samples and 5 μg/kg in soil and food samples. 相似文献
9.
Xin Meng Xin-gang Zhao 《Environmental science and pollution research international》2022,29(23):34092-34104
Environmental Science and Pollution Research - With the process of China’s economic transformation and structural adjustment, the trend of thermal power industry transfer is more and more... 相似文献
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11.
Fred M. Vukovich 《Journal of the Air & Waste Management Association (1995)》2013,63(12):2067-2072
ABSTRACT This study examined the spatial distribution of the weekday/weekend difference in Baltimore, MD, and vicinity. The difference in Baltimore was characterized by having ~39% more NOx , ~59% more CO, and ~27% more volatile organic compounds (VOCs) on the average weekday, but there was ~13% more O3 on the weekend day. Spatially, the difference was elongated in the northeast-southwest direction. It decreased from 13% more O3 in Baltimore to 6% at ~20 km west of Baltimore and to 4% at ~40 km south of Baltimore. It also appeared to decrease to the east, but the magnitude of the decrease could not be determined because of the lack of data east of the Chesapeake Bay. However, the difference increased to the north, reaching a value of almost 18% at a northern Delaware site. 相似文献
12.
Song Lizhong Gao Kui Liu Quanmin Zhang Liangtao Feng Qingsong Guo Wenjie 《Environmental science and pollution research international》2022,29(41):62330-62346
Environmental Science and Pollution Research - With the large-scale construction of suburban railway viaducts, the noise problem along the viaducts is becoming more and more prominent. Conventional... 相似文献
13.
Ji Jianyue Sun Yanan Yin Xingmin 《Environmental science and pollution research international》2022,29(40):60558-60571
Environmental Science and Pollution Research - With the rapid development of mariculture, environmental pollution is becoming more and more serious. It is particularly important to study the green... 相似文献
14.
Yi H. Liu Rong Xie Yi R. Guo Guo N. Zhu Fu B. Tang 《Journal of environmental science and health. Part. B》2013,48(5):475-483
The effectiveness of homologous and heterologous formats in a nanocolloidal gold-based immunoassay for pesticide residue determination was investigated. Parathion, one of the most toxic organophosphorus pesticides, was used as the target analyte. One-step homologous and heterologous test strips based on a nanocolloidal gold-labeled monoclonal antibody were developed for the rapid detection of parathion residues. The results showed that the heterologous format was more effective than the homologous format, being more sensitive, more specific to parathion and more tolerant of matrix interferences. The best competitive hapten was found to have a moderate heterology and the opposite electronic distribution to the immunizing hapten. The detection limits for parathion using the preferred heterologous strip were 1 μg/L in water samples and 5 μg/kg in soil and food samples. 相似文献
15.
Liang Xuedong Lin Shifeng Bi Xueyao Lu Enfan Li Zhi 《Environmental science and pollution research international》2021,28(13):15838-15852
Environmental Science and Pollution Research - As the construction industry generates more than 30% of global greenhouse gases and more than 40% of global urban waste every year, energy... 相似文献
16.
Zhang Kangkang Xu Deyi Li Shiran 《Environmental science and pollution research international》2019,26(25):25775-25788
Environmental Science and Pollution Research - In recent years, as environmental degradation has become more and more serious, the Chinese government has formulated a series of environmental... 相似文献
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Hu Yingen Li Xiang Song Yu Huang Chen 《Environmental science and pollution research international》2023,30(8):20235-20254
Environmental Science and Pollution Research - Rural vitalization (RV) has attracted more and more attention in China, especially since the Rural Vitalization Strategy (RVS) was proposed to... 相似文献
19.
Comparison of AC/O3-BAC and O3-BAC processes for removing organic pollutants in secondary effluent 总被引:2,自引:0,他引:2
AC (activated carbon)/O3-BAC (biological activated carbon) process was employed to treat secondary effluent and compared to O3-BAC process. The effects of ozone dosages and empty bed contact time (EBCT) in BAC on dissolved organic carbon (DOC) removal were investigated. The results showed that the presence of AC improved ozone utilization and biodegradability of the effluent. DOC removal increased with ozone dosage and EBCT in BAC, however, 3 mg l(-1) ozone dosage with 15 min oxidation time and 15 min EBCT in BAC were more economical and efficient. For DOC removal, AC/O3-BAC was more efficient than O3-BAC and its synergetic effect was more than that in O3-BAC process. The biomass of the subsequent BAC unit in AC/O3-BAC process was more than that in O3-BAC process and much more than that in BAC alone. Except for organic pollutants with molecular weight (MW) >10 kDa, those of other MW range were decomposed much more by AC/O3 process than by O3 process. GC/MS analysis showed that dibutyl phthalate, bis(2-ethylhexyl) phthalate, 4-bromo-3-chloroaniline, 2-propanone-ethylhydrazone and phenol derivatives were prevalent organic compounds in the secondary effluent. Some aromatic compounds, such as 4-bromo-3-chloroaniline and 2,4-dichloro-benzenamine disappeared after AC/O3 treatment. However, some small molecules were generated, after further biological treatment by BAC, the kinds and concentration of organic compounds were greatly reduced. 相似文献
20.
Yong Su Boon Gau Shuo-Yan Guo Yu-Chen Wei James Cheng-Chung 《Environmental science and pollution research international》2022,29(38):57091-57101
Environmental Science and Pollution Research - Environmental pollution has become more diversified in recent years as technologies for urbanization is increasingly more advanced. Several... 相似文献