The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

Jing Zhang - One of the best experts on this subject based on the ideXlab platform.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Yongjun Sun, Shanshan Zhao, Xiuyan Wang, Jing Zhang, Zheng Pei
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Shanshan Zhao, Xiuyan Wang, Zhang Hu, Wenjuan Li, Xuejie Xi, Jing Zhang
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

Zhan Wang - One of the best experts on this subject based on the ideXlab platform.

  • a precise combined complete blocking and cake Filtration model for describing the flux variation in membrane Filtration Process with bsa solution
    Journal of Membrane Science, 2017
    Co-Authors: Lei Hou, Zhan Wang, Peng Song
    Abstract:

    Abstract It is difficult but significant to describe the flux variation for the membrane Filtration Process with complex combined Filtration mechanisms. In this paper, the steady membrane frontal area (K) was proposed to improve the predictive accuracy of cake-complete model for combined fouling mechanisms of complete blocking and cake Filtration. Meanwhile, the transition point when the fouling mechanisms changed from combined complete blocking and cake Filtration into individual cake Filtration could also be analyzed under different conditions. The results showed that the predictions of the proposed model had good agreements with experimental data under different conditions for bovine serum albumin (BSA) solution. Meanwhile, the proposed combined model possess higher accuracy (relative error σ ¯ =1.83%) than cake Filtration ( σ ¯ =7.36%), complete blocking ( σ ¯ =15.90%) and pore blockage-cake ( σ ¯ =5.54%) model. Moreover, the transition point appeared earlier at higher pressure and concentration. And larger K was obtained at higher concentration and lower pressure which represented less fouling caused by complete blocking. In addition, the application of the proposed model was validated not only by different suspensions but also by different membranes.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Yongjun Sun, Shanshan Zhao, Xiuyan Wang, Jing Zhang, Zheng Pei
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Shanshan Zhao, Xiuyan Wang, Zhang Hu, Wenjuan Li, Xuejie Xi, Jing Zhang
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

Liying Yang - One of the best experts on this subject based on the ideXlab platform.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Yongjun Sun, Shanshan Zhao, Xiuyan Wang, Jing Zhang, Zheng Pei
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Shanshan Zhao, Xiuyan Wang, Zhang Hu, Wenjuan Li, Xuejie Xi, Jing Zhang
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

Zheng Pei - One of the best experts on this subject based on the ideXlab platform.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Yongjun Sun, Shanshan Zhao, Xiuyan Wang, Jing Zhang, Zheng Pei
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

Xiuyan Wang - One of the best experts on this subject based on the ideXlab platform.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Yongjun Sun, Shanshan Zhao, Xiuyan Wang, Jing Zhang, Zheng Pei
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.

  • influence of various operating conditions on cleaning efficiency in sequencing batch reactor sbr activated sludge Process part ii backwash and water rinsing introduced membrane Filtration Process
    Desalination, 2011
    Co-Authors: Liying Yang, Zhan Wang, Shanshan Zhao, Xiuyan Wang, Zhang Hu, Wenjuan Li, Xuejie Xi, Jing Zhang
    Abstract:

    Abstract In this paper, the influences of backwashing conditions on the washing efficiency ( P ) were systematically investigated by a combination of orthogonal table and multivariate linear regression methods. The experiments were performed with the feed suspension from SBR and deionized water in laboratory-scale dead-end microFiltration test unit with 0.1 μm PES microFiltration membrane. The impact of shearing stress on the backwashing recovery ( r i ), and mass-transfer coefficient on washing efficiency ( P ) were studied respectively. The results showed that backwash and water rinsing introduced membrane Filtration Process could restore the declined flux close to 100%. However, the ability of backwashing was gradually reducing with the increase of backwashing cycle, which was associated with the increasing accumulation of irreversible fouling onto and into the membrane pores. r i and P increased with the increase of transmembrane pressure ( TMP ), and decreased with the increase of operating temperature. Since the foulants are more susceptible to be washed away from the membrane pores during a longer backwash, the r i got a high value, on the contrary, the productivity decreased with an increase of backwash duration due to the back pumping of more detergent. The average contribution of backwashing conditions on P were detergent temperature (50.49%) > transmembrane pressure (39.84%) > backwashing times (7.27%) > backwashing time (2.39%). The backwashing conditions were optimized and the relationship between backwashing conditions and washing efficiency ( P ) was analyzed and defined quantitatively.