Wastewater as renewable feedstock for bioplastics production: understanding the role of reactor microenvironment and system pH

Amulya, K.; Reddy, M. Venkateswar; Rohit, M.V.; Mohan, S. Venkata

doi:10.1016/j.jclepro.2015.08.009

Cited by 52 publications

(14 citation statements)

References 52 publications

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“…In Palmerio-Sanchez et al (2016), the influence of transient concentration of sodium NaCl was studied using a VFAs mixture and simulating the seasonal NaCl concentration in the wastewater of a fish-canning industry. The influence of the pH in the feed substrate was studied for synthetically activated wastewater sludge by Amulya at al. (2016).…”

Section: Waste Carbon Sourcementioning

confidence: 99%

“…Two main reasons to not require any pre-treatment have been observed. On one hand, the authors used a synthetic waste as a carbon source (Schmidt et al, 2016;Cha et al, 2016;Palmeiro-Sánchez et al, 2016;Amulya et al, 2016;Chen et al, 2016a;Venkateswar-Reddy et al, 2016;Fradinho et al, 2016) or, on the other hand, the waste used was rich in sugars or VFA (Cruz et al, 2015;Cruz et al, 2016;Elain et al, 2016;de Paula et al, 2016). All pilot-scale studies showed a substrate pre-treatment (Table 3).…”

Section: Substrate Pre-treatmentmentioning

confidence: 99%

“…Mixed cultures for PHA production have been proposed due to the fact that they are simpler and less costly than the process with pure cultures, since sterile conditions and infrastructure for an axenic bioprocess are not required (Valentino et al, 2017). Indeed among the different mixed cultures reported in the Literature for the 2014-2016 period, the employment of wastewater activated sludge (WAS) was the most widespread (Tables 2 and 3) (Pittmann and Steinmetz, 2016;Cha et al, 2016;Korkakaki et al, 2016;Palmeiro-Sánchez et al, 2016;Amulya et al, 2016;Chen et al, 2015b;Chen et al, 2016a). WAS obtained from wastewater treatment plants could not be employed directly as culture for PHA production.…”

Section: Substrate Pre-treatmentmentioning

confidence: 99%

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Challenges of scaling-up PHA production from waste streams. A review

Rodríguez-Pérez

Serrano

Pantión

et al. 2018

Journal of Environmental Management

221

106

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The search for new materials that replace fossil fuel-based plastics has been focused on biopolymers with similar physicochemical properties to fossil fuel-based plastics, such as Polyhydroxyalkanoates (PHA). The present paper reviews the challenges of scaling-up PHA production from waste streams during the period from 2014 to 2016, focusing on the feasibility of the alternatives and the most promising alternatives to its scaling-up. The reviewed research studies mainly focus on reducing costs or obtaining more valuable polymers. In the future, the integration of PHA production into processes such as wastewater treatment plants, hydrogen production or biodiesel factories could enhance its implementation at industrial scale.

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Section: Waste Carbon Sourcementioning

confidence: 99%

Section: Substrate Pre-treatmentmentioning

confidence: 99%

Section: Substrate Pre-treatmentmentioning

confidence: 99%

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Challenges of scaling-up PHA production from waste streams. A review

Rodríguez-Pérez

Serrano

Pantión

et al. 2018

Journal of Environmental Management

221

106

View full text Add to dashboard Cite

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“…En esta perspectiva del uso de residuos, se trata de una innovación al sector. Amulia et al (2016) observan el crecimiento interesante de los investigadores por los polímeros criados a partir de elementos biológicos, no solamente por su carácter de biodegradabilidad, además por la versatilidad de uso de este material para satisfacer nuevas demandas del mercado.…”

Section: Análisis Del Ciclo De Vida Do Productounclassified

“…Morone et al (2015) consideran que los factores del aumento de la población mundial y limitados recursos naturales pueden generar una producción menor que la necesidad o estimular el uso de residuos como insumos a otro proceso productivo. En esta perspectiva del uso de residuos, Amulia et al (2016) observan el creciente interés de los investigadores por los polímeros fabricados a partir de elementos biológicos, debido a la característica de ser biodegradables y versátiles.…”

Section: Introductionunclassified

Bioplástico: diversificación de la industrialización de la caña de azúcar que contribuye con el medio ambiente

Farinha

Bernardo

Duarte

et al. 2016

RICA

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Bioplástico: diversificación de la industrialización de la caña de azúcar que contribuye con el medio ambientLos residuos de embalajes plásticos de origen petroquímico, durante el transcurso de la historia humana se tornaron un problema ambiental, debido a largos años que llevan para su descomposición. De esta forma, ha aumentado las investigaciones sobre la innovación de polímeros biológicos que puedan atender a las necesidades de las personas y al mismo tiempo que reduce los impactos ambientales. En el mundo, la Braskem es una empresa pionera en la producción de polímeros biológicos proveniente del bagazo de caña de azúcar, siendo utilizado en diferentes formatos con finalidades distintas. El objetivo de esta investigación es levantar las actividades de la industria sucroenergética a favor de la producción de polímero biológico. La metodología se trata de un análisis documental, de divulgación hecha por la empresa en su Website a partir de 2011, referente a proveedor de materia prima, beneficios de la producción de bioplástico, el mercado mundial del producto y la influencia en los resultados financieros de la empresa productora. Los resultados identificados retratan que a Braskem ofrece instrucciones a los proveedores, sobre la producción de materia prima que será para la producción de polímero. La lista de siete beneficios vinculados a esta producción, que puede influenciar en la decisión en adquirir este tipo de polímero. Además de eso, la Braskem informa para donde y cuales empresas adquieren sus polímeros, siendo identificadas la comercialización interna y externa en el Brasil y la influencia de la comercialización de polímeros en su ingreso neto expresado en el ingreso porcentual.Palavras-chave: Innovación; Preservación de los Recursos Naturales; El Plástico Biodegradable. Bioplastics: diversification of industrialization of cane sugar contributes to the environmentWaste plastic packaging of petrochemical origin, became in the course of human history an environmental problem because of the number of years that lead to decomposition. Thus, there is growing research on innovation biological polymers that meet the needs of individuals and at the same time reduce environmental impacts. Worldwide, Braskem is a pioneer in the production of biopolymer originating from bagasse of sugarcane, which is used in different packaging formats for different purposes. The research objective is to raise the activities of the sugarcane industry in favor of the production of biopolymer. The methodology comes from the documentary analysis of disclosures made by the company on their website from 2011, relating to: supply of raw materials, benefits of bioplastics production, markets that are marketed products worldwide and the influence of this product the financial results of the production company. The results depict identified Braskem instructs the suppliers on the production of the raw material to be used for the production of the polymer. Lists seven benefits linked to this production, which may influence the decision to a...

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Biotransformation of oleochemical industry by‐products to polyhydroxyalkanoate bioplastic using microbial fermentation: A review

Kakar

Amelia

Teng

et al. 2021

Environmental Quality Mgmt

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For many decades, global efforts have been attempted to replace the petrochemical plastics with biodegradable and environment friendly plastics. The petrochemical plastics that require many years to decompose have profound consequences on the environment. A natural, biodegradable, and plastic‐like polymer, polyhydroxyalkanoate (PHA), has been extracted from and synthesized by microbes, particularly bacteria. However, the prospective large‐scale production of PHA faced an economic bottleneck for less production costs. Research has thus shifted to one of the most common alternatives, which is the utilization of less costly raw materials or carbon sources that include industrial by‐products and wastes, such as glycerine pitch and glycerol. This review elucidates the discovery, basic mechanisms, and applications of PHA, as well as provides insights regarding the importance of PHA conversion from glycerine pitch and glycerol. This review also summarizes some possible future modifications to improve the efficiency of glycerine pitch and glycerol as carbon sources in PHA production. The conversion endeavors of wastes to a valuable product, PHA, that not only reduces petrochemical plastic pollution, waste generation, and PHA production costs but also supports economic and resource sustainability, which ultimately further progress towards the cradle‐to‐cradle design and circular bioeconomy concept.

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Wastewater as renewable feedstock for bioplastics production: understanding the role of reactor microenvironment and system pH

Cited by 52 publications

References 52 publications

Challenges of scaling-up PHA production from waste streams. A review

Challenges of scaling-up PHA production from waste streams. A review

Bioplástico: diversificación de la industrialización de la caña de azúcar que contribuye con el medio ambiente

Biotransformation of oleochemical industry by‐products to polyhydroxyalkanoate bioplastic using microbial fermentation: A review

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