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Characteristic and correlation analysis of influent and energy consumption of wastewater treatment plants

Luxi Zou, Huaibo Li, Shuo Wang, Kaikai Zheng, Yan Wang, Guocheng Du, Ji Li

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1167-7

Abstract: Poor biodegradability and insufficient carbon source are discovered from influent. Influent indices presented positively normal distribution or skewed distribution. Average energy consumption of WWTPs in Taihu Basin was as high as 0.458 kWh/m3. Energy consumption increases with the increase in influent volume and COD reduction. The total energy consumption decreases with the NH3-N reduction. The water quality and energy consumption of wastewater treatment plants (WWTPs) in Taihu Basin were evaluated on the basis of the operation data from 204 municipal WWTPs in the basin by using various statistical methods. The influent ammonia nitrogen (NH3-N) and total nitrogen (TN) of WWTPs in Taihu Basin showed normal distribution, whereas chemical oxygen demand (COD), biochemical oxygen demand (BOD5), suspended solid (SS), and total phosphorus (TP) showed positively skewed distribution. The influent BOD5/COD was 0.4%–0.6%, only 39.2% SS/BOD5 exceeded the standard by 36.3%, the average BOD5/TN was 3.82, and the probability of influent BOD5/TP>20 was 82.8%. The average energy consumption of WWTPs in Taihu Basin in 2017 was 0.458 kWh/m3. The specific energy consumption of WWTPs with a daily treatment capacity of more than 5 × 104 m3 in Taihu Basin was stable at 0.33 kWh/m3. A power function relationship was observed between the reduction in COD and NH3-N and the specific energy consumption of pollutant reduction, and the higher the pollutant reduction is, the lower the specific energy consumption of pollutant reduction presents. In addition, a linear relationship existed between the energy consumption of WWTPs and the specific energy consumption of influent volume and pollutant reduction. Therefore, upgrading and operation with less energy consumption of WWTPs is imperative and the suggestions for Taihu WWTPs based on stringent discharge standard are proposed in detail.

Keywords: treatment plant     Influent characteristics     Energy consumption evaluation     Specific energy consumption     SPSScorrelation analysis    

Reliability analysis of urban gas transmission and distribution system based on FMEA and correlation

Su LI,Weiguo ZHOU

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 443-448 doi: 10.1007/s11708-014-0336-4

Abstract: improve the safety management of urban gas transmission and distribution system, failure mode and effects analysis(FMEA) was used to construct the reliability analysis system of the pipeline network.To solve the problem of subjectivity and uncertainty of the multi-expert decision making, the correlationUsing FMEA along with weight analysis and expert investigation approach, the FMEA evaluation table wasThe results show that correlation operator can directly process the linguistic terms and quantify the

Keywords: gas transmission and distribution system     risk evaluation     reliability analysis     failure mode and effectsanalysis (FMEA)     correlation operator    

Correlation analysis of couple optical paths for micro stereovision with stereo light microscope

WANG Yuezong, LI Desheng, YU Yaping

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 288-292 doi: 10.1007/s11465-007-0050-6

Abstract: In this paper, a correlation function is proposed to describe the coupling intension between the coupleThe quantified results are applied to the error analysis of the imaging model.Experiments show that the correlation of the optical paths of a common main objective of stereo lightthat of a G-SLM, and the error must be considered when a pinhole imaging model is used to analyze its correlation

Keywords: intension     micromanipulation     correlation function     objective     quantified    

Correlation between carbon emissions and energy structure –Reliability analysis of low carbon target

Ben HUA

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 214-220 doi: 10.1007/s11708-010-0133-7

Abstract: The correlation of with a variety of primary energy mix fractions and technology advances such as CCS

Keywords: correlation     carbon emissions     energy consumption     high carbon emissions energy mix     target of emission reduction    

Reliability analysis on civil engineering project based on integrated adaptive simulation annealing andgray correlation method

Xiao-ping BAI,Ya-nan LIU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 462-471 doi: 10.1007/s11709-016-0361-y

Abstract: The dynamic reliability analysis for the project is still in search of domestic and international researchOn the basis of analysis of the four quality influence factors in the construction engineering, a methodbased on gray correlation degree is employed to calculate the weights of factors affecting construction

Keywords: civil engineering     dynamic reliability     grey relational degree     adaptive simulated annealing algorithm    

Seismic ground motion analysis of Shanghai Pudong Airport site considering the effects of spatial correlation

JIANG Tong, CHEN Laiyun, XING Hailing, L? Xilin

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 430-435 doi: 10.1007/s11709-007-0058-3

Abstract: The spatial correlation of seismic ground motion, as well as the amplification of soft alluvium and theIn order to compare the effect of 2D irregular topography, the seismic response analysis of 1D modelFor indicating the effect of the spatial correlation of input motions, the horizontal uniform inputs,as well as the horizontal and vertical uniform input are carried out for the seismic response analysis

Keywords: surface ground     horizontal uniform     Finally     seismic ground     correlative seismic    

A study on specialist or special disease clinics based on big data

Zhuyuan Fang,Xiaowei Fan,Gong Chen

Frontiers of Medicine 2014, Volume 8, Issue 3,   Pages 376-381 doi: 10.1007/s11684-014-0356-9

Abstract:

Correlation analysis and processing of massive medical information can be implemented through bigThrough analysis technology, such as artificial neural network and grey model, a medical model can beBig data analysis, such as Hadoop, can be used to construct early prediction and intervention models

Keywords: big data     correlation analysis     medical information     integration     data analysis     clinical model    

An intuitive general rank-based correlation coefficient Research Articles

Divya PANDOVE, Shivani GOEL, Rinkle RANI

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 6,   Pages 699-711 doi: 10.1631/FITEE.1601549

Abstract: Correlation analysis is an effective mechanism for studying patterns in data and making predictions.propose an algorithm to quantify the theory of correlations and to give an intuitive, more accurate correlationpredictive metric to calculate correlations between paired values, known as the general rank-based correlationWe have compared it to Spearman’s rank correlation coefficient.

Keywords: General rank-based correlation coefficient     Multivariate analysis     Predictive metric     Spearman’s rank correlation    

Cross-sectional network analysis of plasma proteins/metabolites correlated with pathogenesis and therapeutic

Frontiers of Medicine doi: 10.1007/s11684-023-1022-x

Abstract: Here, we reported a cross-sectional correlation network to interpret multilayered datasets on clinical

Keywords: acute promyelocytic leukemia     plasma proteomics     plasma metabolomics     cross-sectional correlation network    

Higher heating value prediction of torrefaction char produced from non-woody biomass

Nitipong SOPONPONGPIPAT,Dussadeeporn SITTIKUL,Unchana SAE-UENG

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 461-471 doi: 10.1007/s11708-015-0377-3

Abstract: The correlation proposed in this paper and the ones suggested by previous researches were used for predictionFor prediction using proximate analysis data, the mass fraction of fixed carbon and volatile matter hadThe correlation developed in this paper gave a better prediction than the ones suggested by previousFor prediction using elemental analysis data, the mass fraction of carbon, hydrogen, and oxygen had aThe best correlation gave an AAE of 2.28% and an ABE of 1.36%.

Keywords: higher heating value     correlation     biomass     proximate analysis     ultimate analysis    

Digital image correlation-based structural state detection through deep learning

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 45-56 doi: 10.1007/s11709-021-0777-x

Abstract: The digital image correlation (DIC) technology was utilized to collect vibration information of an actual

Keywords: structural state detection     deep learning     digital image correlation     vibration signal     steel frame    

Diagnosis method based on wavelet coefficient scale relativity correlation dimension for fault

GU Junjie, TIAN Jin, PENG Xuezhi

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 164-168 doi: 10.1007/s11708-008-0031-4

Abstract: Correlation dimension as a tool to describe machinery condition is introduced.The correlation dimension is able to identify conditions of the fan with faults compared with the normal

Keywords: effective technology     monitoring     mechanical equipment     relativity     Correlation    

Association of metabolic syndrome with arterial compliance in children and adolescents

ZHANG Li, MI Jie, LI Ming, JIANG Benyu

Frontiers of Medicine 2007, Volume 1, Issue 1,   Pages 68-73 doi: 10.1007/s11684-007-0014-6

Abstract: After taking account of gender, age and pubertal development, the partial correlation analysis showed

Keywords: compliance assessment     correlation analysis     cardiovascular     clustering     HOMA-IR    

Measurement and correlation of the solid-liquid equilibrium of 2-(

Yanhong SUN, Zhiyong LI, Chuang XIE, Wei CHEN, Cui ZHANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 110-115 doi: 10.1007/s11705-013-1316-7

Abstract: In this work, the enthalpy of fusion and melting points of 2-( -butyl)-5-methylphenol (2B5MP) and 2-( -butyl)-4-methylphenol (2B4MP) were measured by differential scanning calorimetry (DSC). The binary solid-liquid equilibrium (SLE) of both compounds were predicted by integrated computer aided system (ICAS) and measured by DSC. The corresponding eutectic molar composition is 0.6998 and the eutectic temperature is 281.96 K. The quasi-static heat capacities of 2B5MP and 2B4MP were evaluated by stochastic temperature modulation DSC technique (TOPEM). The SLE experimental data were correlated using the Margules, Wilson, and non-random two liquid (NRTL) equations and a good agreement between measurement and calculation could be obtained.

Keywords: solid-liquid equilibrium (SLE)     eutectic     integrated computer aided system (ICAS)     TOPEM     correlation    

transition temperature mixture (deep eutectic analogues) for CO absorption: Characterizations and DFT analysis

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1500-9

Abstract:

•Addition of hindered amine increased thermal stability and viscosity of TTTM.

Keywords: Ternary transition-temperature mixture     FT-IR and thermal stability analysis     Viscosity and correlation    

Title Author Date Type Operation

Characteristic and correlation analysis of influent and energy consumption of wastewater treatment plants

Luxi Zou, Huaibo Li, Shuo Wang, Kaikai Zheng, Yan Wang, Guocheng Du, Ji Li

Journal Article

Reliability analysis of urban gas transmission and distribution system based on FMEA and correlation

Su LI,Weiguo ZHOU

Journal Article

Correlation analysis of couple optical paths for micro stereovision with stereo light microscope

WANG Yuezong, LI Desheng, YU Yaping

Journal Article

Correlation between carbon emissions and energy structure –Reliability analysis of low carbon target

Ben HUA

Journal Article

Reliability analysis on civil engineering project based on integrated adaptive simulation annealing andgray correlation method

Xiao-ping BAI,Ya-nan LIU

Journal Article

Seismic ground motion analysis of Shanghai Pudong Airport site considering the effects of spatial correlation

JIANG Tong, CHEN Laiyun, XING Hailing, L? Xilin

Journal Article

A study on specialist or special disease clinics based on big data

Zhuyuan Fang,Xiaowei Fan,Gong Chen

Journal Article

An intuitive general rank-based correlation coefficient

Divya PANDOVE, Shivani GOEL, Rinkle RANI

Journal Article

Cross-sectional network analysis of plasma proteins/metabolites correlated with pathogenesis and therapeutic

Journal Article

Higher heating value prediction of torrefaction char produced from non-woody biomass

Nitipong SOPONPONGPIPAT,Dussadeeporn SITTIKUL,Unchana SAE-UENG

Journal Article

Digital image correlation-based structural state detection through deep learning

Journal Article

Diagnosis method based on wavelet coefficient scale relativity correlation dimension for fault

GU Junjie, TIAN Jin, PENG Xuezhi

Journal Article

Association of metabolic syndrome with arterial compliance in children and adolescents

ZHANG Li, MI Jie, LI Ming, JIANG Benyu

Journal Article

Measurement and correlation of the solid-liquid equilibrium of 2-(

Yanhong SUN, Zhiyong LI, Chuang XIE, Wei CHEN, Cui ZHANG

Journal Article

transition temperature mixture (deep eutectic analogues) for CO absorption: Characterizations and DFT analysis

Journal Article