Rice Husks and Kaolin Based Ceramic Membrane for Filtration of Slaughterhouse Wastewater: Optimization Study Using Response Surface Methodology (RSM) and Responses Interdependence Analysis
Saliou Njuhou, M. Mouafon, A. Pountouenchi, O. R. Njindam, G. Lecomte‐Nana, D. Njoya
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引用次数: 0
Abstract
The optimization of properties of ceramic membrane by taking into account the correlation between their properties remains a challenge. The purpose of this study was to achieve this objective by using design of experiment to perform optimization of a ceramic membrane made from clays and rice husk. Two kaolinite clays, namely MY3 and KG, were used with rice husk to manufacture ceramic membranes. After sintering, the obtained products underwent characterizations such as flexural strength, open porosity, permeability, hydraulic diameter, XRD analysis and microscopy image analysis. The effects of each component on membrane properties were modelled with linear models. The results showed significant interactions between constituents and between membrane properties (porosity with resistance, permeability with porosity and hydraulic diameter). The optimal mixture consisted of 83% MY3, 15% KG and 2% rice husk which presented 8.0 MPa flexural strength, 30% porosity, 675 L.h–1.m–2.bar–1 permeability and 2.6 µm hydraulic diameter. Filtration of slaughterhouse wastewater showed a reduction of 97% chemical oxygen demand, 99% turbidity, 80% total dissolved solid, electrical conductivity and salinity. 84% pseudomonas and 75% vibrio cholerae were also eliminated. GRAPHICAL ABSTRACT
考虑到陶瓷膜性能之间的相关性来优化陶瓷膜的性能仍然是一个挑战。为了达到这一目的,本研究采用实验设计对粘土和稻壳制备的陶瓷膜进行了优化。用两种高岭石粘土MY3和KG与稻壳混合制备陶瓷膜。烧结后,对所得产品进行了抗弯强度、开孔率、渗透率、水力直径、XRD分析和显微图像分析等表征。用线性模型模拟了各组分对膜性能的影响。结果表明,各组分之间以及膜性能(孔隙度与阻力、渗透率与孔隙度和水力直径)之间存在显著的相互作用。最佳配比为:MY3 83%, KG 15%,稻壳2%,抗折强度8.0 MPa,孔隙率30%,675 l - h - 1 - m - 2。Bar-1渗透率和2.6µm水力直径。过滤后的屠宰场废水化学需氧量降低97%,浊度降低99%,总溶解固形物降低80%,电导率和盐度降低80%。84%的假单胞菌和75%的霍乱弧菌也被消灭。图形抽象
期刊介绍:
Transactions of the Indian Ceramic Society is a quarterly Journal devoted to current scientific research, technology and industry-related news on glass and ceramics. The Journal covers subjects such as the chemical, mechanical, optical, electronic and spectroscopic properties of glass and ceramics, and characterization of materials belonging to this family.
The Editor invites original research papers, topical reviews, opinions and achievements, as well as industry profiles for publication. The contributions should be accompanied by abstracts, keywords and other details, as outlined in the Instructions for Authors section. News, views and other comments on activities of specific industries and organizations, and also analyses of industrial scenarios are also welcome.