Evaluation of Selected Operating Process Variables for a Bioflocculant Supported Column Flotation System

被引：0

作者：

Mukandi, Melody R. ^{[1
]}

Basitere, Moses ^{[2
,3
]}

Ntwampe, Seteno K. O. ^{[4
]}

Njoya, Mahomet ^{[5
]}

Chidi, Boredi S. ^{[1
]}

Dlangamandla, Cynthia ^{[1
]}

Mpongwana, Ncumisa ^{[1
]}

机构：

[1] Cape Peninsula Univ Technol, Fac Engn & Built Environm, Dept Chem Engn, Bioresource Engn Res Grp BioERG, POB 1906, ZA-7535 Bellville, South Africa

[2] Univ Cape Town, Acad Support Programme Engn ASPECT, Private Bag X3, ZA-7700 Cape Town, South Africa

[3] Univ Cape Town, Dept Civil Engn, Water Res Grp, Private Bag X3, ZA-7700 Cape Town, South Africa

[4] Univ Johannesburg, Dept Chem Engn Technol, Doornfontein Campus,POB 524, ZA-2006 Johannesburg, South Africa

[5] Atos, 5920 Windhaven Pkwy Suite 120, Plano, TX 75093 USA

来源：

WATER | 2024年 / 16卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

column flotation; bioflocculant form; diffuser design; poultry slaughterhouse wastewater; wastewater; EXTRACELLULAR POLYMERIC SUBSTANCES; WASTE-WATER; SLUDGE;

D O I：

10.3390/w16020329

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The poultry industry generates significant volumes of slaughterhouse wastewater, laden with numerous pollutants, thus requiring pretreatment prior to discharge. However, new technologies must be used to re-engineer the existing wastewater treatment equipment and incorporate new designs to improve the treatment processes or system performance. In this study, three variables, i.e., diffuser design, bioflocculant form, and flow rate, were evaluated to determine their effect on the performance of a bioflocculant-supported column flotation (BioCF) system. It was found that bioflocculants influenced diffuser performance with limited impact when the feed flow rate was varied, i.e., 3D-printed air diffusers and cell-free flocculants imparted high BioCF performance when compared to moulded diffusers and cell-bound flocculants. Notably, the combination of 3D-printed air diffusers and cell-free flocculants resulted in relatively high pollutant removal (81.23% COD, 94.44% TSS, 97.77% protein, and 90.38% turbidity reduction). The study lays a foundation for exploring 3D-printed air diffusers, a relatively new technology in conjunction with microbial flocculants usage that are regarded as eco-friendly for application in industry to enhance the performance of column flotation systems.

引用

页数：18

共 44 条

[1] A review of the production process of bacteria-based polymeric flocculants [J].