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| 1. |
The cost benefits of environmental research |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 3-3
Larry E. Erickson,
Stanley C. Grant,
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ISSN:0278-4491
DOI:10.1002/ep.670170202
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 2. |
Environmental update |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 4-6
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PDF (390KB)
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ISSN:0278-4491
DOI:10.1002/ep.670170203
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 3. |
An introduction to soils for environmental professionals Duane L. Winegardner, CRC Press, Inc., Boca Raton, FL, (1996), 270 pages, [ISBN No.: 1–87371–939–5], U.S. List Price: $69.95 |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 7-8
Robert C. Ahlert,
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ISSN:0278-4491
DOI:10.1002/ep.670170205
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 4. |
Design of remediation systems Jimmy H. C. Wong, Chin Hon Lim, and Greg L. Nolen CRC Press, Inc., Boca Raton, FL, (1997), 263 pages, [ISBN No: 1–56670–217–8], U.S. List Price: $59.95 |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 8-9
Carl Swanstrom,
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ISSN:0278-4491
DOI:10.1002/ep.670170206
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 5. |
Soil erosion, conservation, and rehabilitation Menachem Agassi, editor, Marcel Dekker, Inc., New York, NY, (1996), 204 pages, [ISBN No.: 0–8247–8984–9], U.S. List Price: $150.00 |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 9-10
Robert E. Pitt,
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ISSN:0278-4491
DOI:10.1002/ep.670170207
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 6. |
The environmental professionals' world wide web non‐technical directory |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 11-17
Ashok Kumar,
Ronak Desai,
Rishi Kumar,
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ISSN:0278-4491
DOI:10.1002/ep.670170208
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 7. |
Air pollution control cost indexes update #4 |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 18-20
William M. Vatavuk,
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ISSN:0278-4491
DOI:10.1002/ep.670170209
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 8. |
A sorbent regenerator simulation model in copper oxide flue gas cleanup processes |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 61-69
Zhong‐Ying Chen,
James T. Yeh,
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摘要:
AbstractSorbent regeneration is an important step in copper oxide flue gas cleanup processes because poor regeneration performance could require higher sorbent circulation rate and inventory, resulting in increased process costs. This article describes a countercurrent moving‐bed regeneator model using natural gas as the reducing agent. The model incorporates several aspects important for predicting the regenerator performance, such as gas expansion effects, deviation from first‐order kinetics with respect to copper sulfate, and mass transfer limitations. The sorbent residence time predicted by this model is in good agreement with data obtained from the life‐cycle test system at the Federal Energy Technology Center. The tests conducted include effects of reactor temperature, the methane to copper sulfate feed ratio, and sorbent residence time, on sorbent regeneration. The regenerator modeling also details the impact of gas velocity on the reactor perfor
ISSN:0278-4491
DOI:10.1002/ep.670170210
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 9. |
Biotreatment of ammonia in air by an immobilizedNitrosomonas europaeabiofilter |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 70-76
Ying‐Chien Chung,
Chihpin Huang,
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摘要:
AbstractThe chemoautotrophic microorganismNitrosomonas europaeahas been utilized to remove gaseous ammonia in a continuous reactor. Extensive tests including removal characteristics, metabolic products, and removal efficiencies of ammonia byN. europaeawere conducted. The operational principles governing the biofilter and the question of the heterotroph contamination were also studied. The optimum pH value and operating temperature required to effectively remove ammonia were found to be pH 7.5 and 30°C, respectively. When the diluted inlet ammonia concentration was 10 or 20 ppm, the biofilter achieved a 99% removal efficiency after 4 days of operation. However, higher ammonia inlet concentrations and heterotroph contamination resulted in a lower removal efficiency. The results showed that the maximum removal rate and apparent saturation constant were 1.11 g‐N/day/kg‐bead and 63.67 ppm, respectively. The mainly metabolic product of ammonia oxidation was determined to be nitrite, but the conversion ratio was dependent on whether the contaminations by heterotrophic bacteria were present. From an operating perspective, if the ammonia emission limit (i.e., 1 ppm) was to be achieved, the maximum inlet concentration could not exceed 75 ppm. These results suggest that the immobilizedNitrosomonas europaeabiofilter provides a significant potential for treating ammonia in the gaseous p
ISSN:0278-4491
DOI:10.1002/ep.670170211
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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| 10. |
A simple method for estimating cyclone efficiency |
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Environmental Progress,
Volume 17,
Issue 2,
1998,
Page 77-79
Thomas J. Overcamp,
Sridhar V. Mantha,
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摘要:
AbstractA simple method for estimating cyclone efficiency is given based on the assumptions of a lognormal size distribution and the generalized Lapple fraction efficiency curve. This method enables the prediction of the overall efficiency of the cyclone as a function of the cut diameter of the cyclone, a parameter in the generalized Lapple distribution, and the parameters of the lognormal distribution. The method shows the most significant parameter in predicting the overall efficiency for a lognormal dust is the ratio of the aerodynamic geometric mass mean diameter to the aerodynamic cut diameter.
ISSN:0278-4491
DOI:10.1002/ep.670170212
出版商:American Institute of Chemical Engineers
年代:1998
数据来源: WILEY
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