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Online since: December 2014
Authors: Guang Hua Wang, Wen Bing Li, Zheng Zhu, Yin An Zhu, Jin Li
Pilot scale Study on Advanced Treatment of Coking Wastewater with Biological Activated Carbon Technology Jin Li1,2,a , Guanghua Wang1,2,b , Wenbing Li1,2, Zheng Zhu1,2 and Yinan Zhu1,2 1College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081, China 2Hubei Key Laboratory of Coal Conversion and New Carbon Materials,Wuhan 430081,china alijin20091988@163.com ,bwghuah@21cn.com Keywords: Pilot Scale Test, Biological Activated Carbon Aerated Tower, Efficient Degrading Strains, Coking Wastewater Abstract: This paper reports about a pilot-scale feasibility study of Advanced Treatment of Coking Wastewater with Biological Activated Carbon technology based on the better experimental data of laboratory scale test .The self-designed of the Biological Activated Carbon Aerated tower was based on the optimal operating conditions of the results obtained from laboratory scale test.The removal efficiency to pollutants of efficient compound
Data were collected using the GC/MS analysis software, and analyzed using a NIST library[7].
A B Fig.2 Scanning electron micrographs of pellets of carbon COD andChromaticity Removal by BAC.COD and Chromaticity removal data were estimated as concentrations at the inlet and outlet of the Biological Activated Carbon Aerated tower and removal ratio.
With the operation time increased, the adsorption sites of activated carbon were saturated gradually, leading to the reduction of the COD removal rate.In the middle and later periods of the running, concentration of COD in effluent water gradually reduced and eventually maintained in at a relative stable level.As efficient compound bacterium begun to adapt to the wastewater environment and play a strong role in degradation of hard-biodegradable organics, During the steady period , the average COD removal rate of the BAC tower greater than 50%, while the average COD concentration in outflow water was less than 60 mg/L.
Thus, Pilot scale Study on Advanced Treatment of Coking Wastewater with Biological Activated Carbon Technology provides reliable evidence and data for large-scale industrial applications of BAC technology.
Online since: February 2011
Authors: Yong Zang, Bo Zhang, Li Hong Cui, Zhi Ying Gao
The simulation results matched well with the data obtained on the spot.
The mean reduction of temperature in the arc region of flange is 9.9°C, and that of central web, 14.3°C.
The material constants and initial coefficients of radiation and convection used in simulation model were set according to the data of references [9-10].
Based on above initial data a series of trials could be done.
(a) in the web (b) in the flange Fig. 7 Comparison between the axial stresses of measurement and simulation Conclusions (1) According to the measured data, the temperature distribution of H700×300 was simulated.
Online since: June 2013
Authors: Li Tao, Jia Jia Ni, Yi Jun Wang, Jin Lei Wu
According to the analysis of data on the survey, we put forward some particular energy-saving measures of central air-conditioning system of the hotel, including strengthening the building envelope insulation, energy saving technology of doors and windows, measures of roof energy saving, setting reasonable indoor temperature, adopting frequency control air-conditioning, reuse waste heat of the central air-conditioning, using the condensation water of central air conditioning to make-up water and reducing temperature of cooling tower , and drying the fresh air independently.
According to the data, in a modern building, central air-conditioning energy consumption accounts for about 50% of the total energy consumption of the entire building.
According to the data [1], the heat transfer coefficient of the building envelope increases 1W/(m2×K), if the other conditions under the same conditions, the air conditioning system design load will increase nearly 30%.
According to the data [6], in order to achieve the same cooling capacity, cooling water inlet water temperature for each should add 1°C, and energy consumption should increase by 4%.
So it achieves the purpose of energy saving and emission reduction.
Online since: September 2014
Authors: Chia Hung Lin, Chao Shun Chen, Wei Lin Hsieh, Shih Chieh Hsieh
The PV power generation is estimated based on local solar irradiation and temperature data.
The reduction of CO2 emission by PV systems was considered a social benefit and was used to determine the profitability of PV systems [5].
To estimate the annual generation of power by the PV system, the local hourly weather data over one-year period is first sorted in descending order of the irradiation level of sunlight.
By retrieving the local weather data of hourly irradiation of the test feeder on July 5 2010, the annual duration curve of solar irradiation and the corresponding PV power duration curves for PV systems with capacities of 2,500 kWp and 4,000 kWp are derived as shown in Fig. 1.
With the simulation data of a Taipower distribution feeder, we can achieve the maximal NPV of $9.3 million by setting up a 4,500-kWp PV system with a 500-kVAR DSTATCOM.
Online since: November 2013
Authors: Qian Feng, Lin Chen
The simulated results and experimental data were in good correspondence, which verify the simulation methods are reasonable and the simulation results are acceptable.
The optimal operation, configuration improvement and energy reduction of oxidation ditch would play a crucial role to improve the wastewater treatment, through the study of mixed liquor hydraulic characteristics in the oxidation ditch.
And the simulation results were compared with velocity data measured on the ditch, which could provide some evidences to the future study.
The simulated results were compared with the measured data in figure 6.
The results were verified by the experimental data.
Online since: December 2012
Authors: Jin Liu, Wei Bin Deng
(1) We fill the absent ratings with a novel smooth method to address the problem of data sparsity
Experimental Evaluations Data sets.
There is a data set including 100,000 ratings from 943 users on 1682 movies.
The details of the three data sets are shown in Table 2.
The details of the experimental data sets Data set # of users # of movies #of categories # of ratings sparsity level TD200 200 500 9 6962 0.930 TD400 400 500 9 14317 0.928 TD800 800 500 9 22274 0.944 Evaluation metrics.
Online since: November 2012
Authors: Shou Fang Mi, Heng Bo Zhang, Ling Hua Li
Data Acquisition.
In the step of data acquisition, we use Wacom's pressure sensitive tablet and pen to capture handwriting data.
Its main advantage is the reduction in computational complexity
The characters for each writer are stored in one data file.
Fig. 4 shows some examples of the numeric characters in the data set.
Online since: January 2011
Authors: Somrerk Chandra-Ambhorn, Jiratthanakul Noppon
Seven thousand sets of data consisting of mechanical properties, chemical compositions, and rolling parameters of industrial hot-rolled coils were analysed using multiple regression.
Experimental procedure In this study, the 7105 sets of data consisting of mechanical properties, chemical compositions, and rolling parameters were collected from the hot strip mill.
Input Data Estimate intercept and coefficients of model Calculate statistical significance Perform analysis of variance Evaluate model adequacy Accept or disqualify the model Least square method T-Test method F-Test method 1.
From the data taken for this study, THK was in the range from 0.9 to 19.0 mm.
Acknowledgement The authors acknowledge Sahaviriya Steel Industries (SSI) public company limited for granting Noppon Jiratthanakul a scholarship to pursue the master study in metallurgy at TGGS, KMUTNB, as well as for providing data for his thesis, which the present work is a part of.
Online since: July 2013
Authors: Lei Zhao, Pan Li, Meng Huang
We called it the damage factor that the factors influenced these data and denoted it by D.
Manage the Spatial Data.
The data of Langfang updated frequently, such as mobility, transformation of basic design, equipment updates and other data needed to update.
Digital Emergency Management system of Langfang provides stronger data collection and edition; a variety of data can be entered directly or imported from other databases.
Spatial data query is the basic functions of the system.
Online since: July 2014
Authors: Xi Zhao, Guang Ming Li
Most commercial banks have put their business and data processing into centralized IT&Data centers.
As a result, centralized IT&Data centers of banks have become the backbones of bank business and data processing concentrate voluminous computation, data storage and network resources.
Procedure and operation in a task are defined according to business rules and data stocking and may require or produce ephemeral data.
Discussion Bank IT&Data centers have centralized all business processing and data storage and become the backbones of bank business running and development.
MapReduce: Simplified data processing on large clusters.
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