Study on pollutant emission factors of offshore fishery research and investigation ship

2021 ◽  
Author(s):  
xin rao ◽  
hongliang huang ◽  
lingzhi li ◽  
jialiang yang ◽  
shuai chen
Keyword(s):  
Emission Factors ◽  
Pollutant Emission ◽  
Fishery Research

Fish Processing Wastewater: Emission Factors and High Load Trickling Filters Evaluation

1992 ◽  
Vol 25 (1) ◽  
pp. 1-8 ◽  
Author(s):  
P. Battistoni ◽  
G. Fava ◽  
A. Gatto
Keyword(s):  
Cross Flow ◽  
Emission Factors ◽  
High Rate ◽  
Superior Performance ◽  
Pollutant Emission ◽  
Order Kinetic ◽  
Fish Processing ◽  
Kinetic Reaction ◽  
Trickling Filters ◽  
Frozen Fish

An Italian seafood factory processing frozen fish and fresh clams was investigated. Specific water consumption (SC) and pollutant emission factors (EF) are evaluated. Results evidence high SC values, in the range 18-74 1/Kg, due to defrost and extensive washing and cleaning practised; EFs appear high although not directly comparable with data reported by other authors. Two high-rate trickling filters, cross flow (CF) and vertical flow (VF), are examined over a two years period. Results suggest a pseudo half-order kinetic reaction with a superior performance of CF plastic media. From the elaboration of the experimental data a semiempirical correlation between specific surface removal (SSR) and operative parameters is obtained.

Spatially Resolved Emission Factors to Reduce Uncertainties in Air Pollutant Emission Estimates from the Residential Sector

2021 ◽  
Vol 55 (8) ◽  
pp. 4483-4493
Author(s):  
Xinlei Liu ◽  
Guofeng Shen ◽  
Laiguo Chen ◽  
Zhe Qian ◽  
Ningning Zhang ◽  
...  
Keyword(s):  
Emission Factors ◽  
Air Pollutant ◽  
Pollutant Emission ◽  
Residential Sector ◽  
Spatially Resolved

scholarly journals Mutagenicity and Pollutant Emission Factors of Solid-Fuel Cookstoves: Comparison with Other Combustion Sources

2016 ◽  
Vol 124 (7) ◽  
pp. 974-982 ◽  
Author(s):  
Esra Mutlu ◽  
Sarah H. Warren ◽  
Seth M. Ebersviller ◽  
Ingeborg M. Kooter ◽  
Judith E. Schmid ◽  
...  
Keyword(s):  
Solid Fuel ◽  
Emission Factors ◽  
Pollutant Emission ◽  
Combustion Sources

scholarly journals Study on the Annual Reduction Rate of Vehicle Emission Factors for Carbon Monoxide: A Case Study of Urban Road Tunnels in Shenzhen, China

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Weiwei Liu ◽  
Jianxun Chen ◽  
Yanbin Luo ◽  
Zhou Shi ◽  
Xiang Ji ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Reduction Rate ◽  
Emission Factors ◽  
Pollutant Emission ◽  
Passenger Cars ◽  
Urban Road ◽  
Road Tunnels ◽  
Measurement Results ◽  
Annual Reduction ◽  
Co Emission

Environmental pollution and energy conservation in urban tunnels have become important issues that affect the scientific design and sustainable development of urban tunnels. The carbon monoxide (CO) concentration in urban road tunnels is regarded as a direct reflection and a useful tracer of the intensity of anthropogenic transportation activities. Previous studies in recent years have paid more attention to pollutant emission factors, but less to the calculation parameters of ventilation design for tunnels. This paper aims to study a reasonable annual reduction rate of CO base emission factors. Therefore, a detailed field measurement was carried out in the four typical urban road tunnels, Henglongshan Tunnel, Cejiexian Tunnel, Jiuweiling Tunnel, and Dameisha Tunnel in Shenzhen, China, from March 29 to September 16, 2014. Measurement results showed that the traffic flow of the four urban tunnels had been approaching the design value, or even beyond the limit. The average daily air velocities in the four tunnels were all within 5 m/s, whereas the maximum air velocity had exceeded the limit of 10 m/s. The CO concentrations in Henglongshan Tunnel, Cejiexian Tunnel, Jiuweiling Tunnel, and Dameisha Tunnel were 17 ppm, 7 ppm, 39 ppm, and 8 ppm, respectively. Moreover, it was found that the average CO emission factors of Henglongshan Tunnel, Cejiexian Tunnel, Jiuweiling Tunnel, and Dameisha Tunnel were 1.075 g/(km·veh), 1.245 g/(km·veh), 4.154 g/(km·veh), and 1.739 g/(km·veh), respectively. Based on the statistical data, the CO emission factors of mixed traffic and passenger cars decrease by an average of 16.4% and 33.3%, respectively, per year through the regression method and by an average of 17.4% and 29.0%, respectively, per year through the extremum method. Finally, when considering the safety factor of 20%, it is more reasonable for the CO base emission to adopt 4% as an annual reduction rate for ventilation design in urban tunnels.

scholarly journals Air pollutant emission factors from new and in-use motorcycles

2000 ◽  
Vol 34 (28) ◽  
pp. 4747-4754 ◽  
Author(s):  
Jiun-Horng Tsai ◽  
Yih-Chyun Hsu ◽  
Hung-Cheng Weng ◽  
Wen-Yinn Lin ◽  
Fu-Tien Jeng
Keyword(s):  
Emission Factors ◽  
Air Pollutant ◽  
Pollutant Emission

scholarly journals The effects of deterioration and technological levels on pollutant emission factors for gasoline light-duty trucks

2017 ◽  
Vol 67 (7) ◽  
pp. 814-823 ◽  
Author(s):  
Qingyu Zhang ◽  
Juwang Fan ◽  
Weidong Yang ◽  
Bixin Chen ◽  
Lijuan Zhang ◽  
...  
Keyword(s):  
Emission Factors ◽  
Pollutant Emission ◽  
Light Duty
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