Treatment of Oily Effluents Using a Bacterial Cellulose Membrane as the Filter Bed DOI Open Access

Alexandre D’Lamare Maia de Medeiros,

Cláudio José Galdino da Silva, Ítalo José Batista Durval

и другие.

Опубликована: Июнь 11, 2024

One of the main challenges in treatment industrial wastewater is removal oil-in-water emulsions, which are stable and therefore difficult to treat. Bacterial cellulose (BC) has structural characteristics that make it an ideal filtration membrane. The present study investigated effectiveness a BC membrane system for oily wastewaters. results demonstrated highly effective at removing contaminants (~99%), reducing colour particulate matter wastewater, as well eliminating nearly entire microbiological load (~99%). SEM, MEV, FTIR, XRD, TGA presence oil interior after filtration, characteristic peaks its chemical composition, 40% reduction crystallinity. revealed increase from three (pre-filtration) five (post-filtration) stages thermal degradation, indicating retention contaminant BC. mechanical tests tensile strength 72.13 ± 8.22 MPa tolerated elongation up 21.11 4.81% prior tearing. also exhibited excellent flexibility, could be folded > 100 times same point without exhibiting signs surpasses traditional methods, such activated charcoal effluent stations, emulsified oils. findings demonstrate promising wastewaters, field requires continual technological innovations mitigate environmental impacts industry.

Язык: Английский

Biotechnology in Food Packaging Using Bacterial Cellulose DOI Creative Commons
Maryana Rogéria dos Santos, Ítalo José Batista Durval,

Alexandre D’Lamare Maia de Medeiros

и другие.

Foods, Год журнала: 2024, Номер 13(20), С. 3327 - 3327

Опубликована: Окт. 20, 2024

Food packaging, which is typically made of paper/cardboard, glass, metal, and plastic, essential for protecting preserving food. However, the impact conventional food packaging especially predominant use plastics, due to their versatility low cost, bring serious environmental health problems such as pollution by micro nanoplastics. In response these challenges, biotechnology emerges a new way improving providing biopolymers sustainable alternatives. this context, bacterial cellulose (BC), biodegradable biocompatible material produced bacteria, stands out its mechanical resistance, preservation capacity, rapid degradation promising solution replacing plastics. despite advantages, large-scale application still encounters technical economic challenges. These include high costs compared when materials are used, difficulties in standardizing membrane production through microbial methods, challenges optimizing cultivation processes, so further studies necessary ensure safety industrial viability. Thus, review provides an overview impacts packaging. It discusses development highlighting BC biopolymer. Additionally, it explores biotechnological techniques innovative structural modifications BC, well ways optimize process. The study also emphasizes importance solutions promoting circular economy within industry reducing impact.

Язык: Английский

Процитировано

4
Treatment of Oily Effluents Using a Bacterial Cellulose Membrane as the Filter Bed DOI Open Access

Alexandre D’Lamare Maia de Medeiros,

Cláudio José Galdino da Silva, Ítalo José Batista Durval

и другие.

Опубликована: Июнь 11, 2024

One of the main challenges in treatment industrial wastewater is removal oil-in-water emulsions, which are stable and therefore difficult to treat. Bacterial cellulose (BC) has structural characteristics that make it an ideal filtration membrane. The present study investigated effectiveness a BC membrane system for oily wastewaters. results demonstrated highly effective at removing contaminants (~99%), reducing colour particulate matter wastewater, as well eliminating nearly entire microbiological load (~99%). SEM, MEV, FTIR, XRD, TGA presence oil interior after filtration, characteristic peaks its chemical composition, 40% reduction crystallinity. revealed increase from three (pre-filtration) five (post-filtration) stages thermal degradation, indicating retention contaminant BC. mechanical tests tensile strength 72.13 ± 8.22 MPa tolerated elongation up 21.11 4.81% prior tearing. also exhibited excellent flexibility, could be folded > 100 times same point without exhibiting signs surpasses traditional methods, such activated charcoal effluent stations, emulsified oils. findings demonstrate promising wastewaters, field requires continual technological innovations mitigate environmental impacts industry.

Язык: Английский

Процитировано

2