Residence time distribution experiments in a hybrid anaerobic blanket reactor treating real pharmaceutical wastewater

被引:0
|
作者
Mullai, P. [1 ]
Vishali, S. [2 ]
Dharmalingam, K. [3 ]
机构
[1] Annamalai Univ, Fac Engn & Technol, Dept Chem Engn, Annamalainagar 608002, Tamil Nadu, India
[2] SRM Inst Sci & Technol, Fac Engn & Technol, Dept Chem Engn, Chennai 603203, Tamil Nadu, India
[3] Chaitanya Bharathi Inst Technol, Dept Biotechnol, Hyderabad 500075, Telangana, India
关键词
Residence time distribution; Hybrid anaerobic blanket reactor; Plug flow model; Lithium chloride tracer; Pharmaceutical wastewater; Axial dispersion flow model; AXIAL-DISPERSION; MEMBRANE BIOREACTOR; PERFORMANCE; INDUSTRY; FLOW; BIODEGRADATION; UASB;
D O I
10.1016/j.jtice.2024.105381
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Background: The phenomena of mixing is considered important due to its involvement in modelling and design of reactors. Methods: The residence time distribution (RTD) experiments to find out the mixing characteristics were conducted in hybrid anaerobic blanket reactor (HABR) with four different OLRs of pharmaceutical wastewater using lithium chloride as tracer by means of stimulus-response technique. The mean hydraulic retention time, dispersion and Peclet number for various OLRs in HABR were determined. Significant findings: The experimental COD removal efficiencies in HABR and the theoretical performance were found out using the axial dispersion flow model (ADFM) and plug flow model (PFM). The estimated theoretical chemical oxygen demand (COD) removal efficiencies, using the ADFM were 92.4 %, 82.0 %, 63.0 % and 41.7 % and the values respectively for PFM were 97.27 %, 93.92 %, 83.47 % and 59.34 %. The error percentage detected was less than 7 % in ADFM which exhibited better flow representation in HABR. Furthermore, the value of correlation coefficient (R2 = 0.9956) between the theoretical COD removal efficiencies and experimental values confirmed the suitability of the ADF model.
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页数:6
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