Fly ash based robust biocatalyst generation: a sustainable strategy towards enhanced green biosurfactant production and waste utilization

Zhu, Zhiwen; Zhang, Baiyu; Chen, Bing; Ling, Jingjing; Cai, Qinghong; Husain, Tahir

doi:10.1039/c9ra02784j

Cited by 10 publications

(6 citation statements)

References 42 publications

(47 reference statements)

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“…This cost was much lower than the retail price of sophorolipids, which is $2.5-6.3/kg (Freitas et al, 2016). Biosurfactant productivity could be further improved by the development of effective bioreactors (Zhu et al, 2019), and the design of engineering strains (Banat et al, 2014). In addition, the purification of generated biosurfactant contributes to around 60% of the overall production cost.…”

Section: Economic Feasibility Of Biodispersant Developmentmentioning

confidence: 99%

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Fish Waste Based Lipopeptide Production and the Potential Application as a Bio-Dispersant for Oil Spill Control

Zhu

Zhang

Cai

et al. 2020

Front. Bioeng. Biotechnol.

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Section: Economic Feasibility Of Biodispersant Developmentmentioning

confidence: 99%

“…Biosurfactants are natural surface-active molecules produced by microorganisms during their growth (Zhu et al, 2019). Like the chemical equivalents, they can reduce surface and interfacial tensions, but with lower toxicity and higher biodegradability (Hsu and Nacu, 2003).…”

Section: Introductionmentioning

confidence: 99%

Fish Waste Based Lipopeptide Production and the Potential Application as a Bio-Dispersant for Oil Spill Control

Zhu

Zhang

Cai

et al. 2020

Front. Bioeng. Biotechnol.

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“…e eutrophication of water bodies not only harms the growth and reproduction of aquatic animals, but also leads to the destruction of aquatic ecosystems. It also reduces the useable value of water bodies and poses threats to human health and environmental protection [2].…”

Section: Introductionmentioning

confidence: 99%

“…Research of Sandhwar and Prasad mainly focuses on the treatment of electrocoagulation, peroxy electrocoagulation, and peroxygen coagulation processes in the treatment of the main toxic components in wastewater containing purified terephthalic acid, benzoic acid (BA), terephthalic acid (TPA), and p-toluic acid (p-TA) and phthalic acid (PA). First, it is treated by acid treatment at different pH values (2)(3)(4) and temperatures (15-60 °C).…”

Section: Introductionmentioning

confidence: 99%

Treatment of Comprehensive Wastewater from Chemical and Pharmaceutical Parks by Fly Ash-Coated Iron Electrode Electrocoagulation

Zhu

Chen

2022

Advances in Materials Science and Engineering

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With the rapid development of the economic system and the continuous development of industry, environmental pollution is becoming more and more important, so wastewater treatment urgently needs to be strengthened. This article uses fly ash-coated iron electrode electrocoagulation method to carry out experimental tests on the treatment of comprehensive wastewater from chemical and pharmaceutical parks. Fly ash is used as a raw material to prepare a shaped adsorbent; in order to analyze whether the adsorbent has many potential applications in actual wastewater treatment and use. The experiment research of iron electrode electrocoagulation was carried out on actual groundwater, aiming to provide data and theoretical support for the utilization of fly ash and the optimization of comprehensive wastewater treatment technology. The article mainly conducts related research on title distribution, firstly the physical and chemical properties of fly ash, and secondly, discusses the related structure of electrocoagulation method, and solves the problem of comprehensive wastewater based on the combination of the two solving issues. Aware of the importance of sewage treatment and the characteristics of related treatment methods such as adsorption, membrane separation technology, and ion exchange, the advantages of these methods are also used for reference in subsequent experiments to achieve the purpose of reliable experimental results. The experimental results show that the effect of sewage treatment with fly ash with different average diameter particles is obvious. Among them, the maximum value of vibration grinding ash before and after application increased from 5.62 to 8.31, and the maximum removal rate is also 8.31; the removal effect is significant. It can be seen that the fly ash-coated iron electrode electrocoagulation method can have a great effect on the treatment of comprehensive wastewater in the chemical and pharmaceutical park.

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“…Biosurfactants are surface-active macromolecules secreted by microorganisms through their secondary metabolism [1]. A biosurfactant has the amphoteric molecular structure with a hydrophilic head and a hydrophobic tail [2].…”

Section: Introductionmentioning

confidence: 99%

Multi-Scale Biosurfactant Production by Bacillus subtilis Using Tuna Fish Waste as Substrate

Luo

Zhu

et al. 2021

Catalysts

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As one of the most effective biosurfactants reported to date, lipopeptides exhibit attractive surface and biological activities and have the great potential to serve as biocatalysts. Low yield, high cost of production, and purification hinder the large-scale applications of lipopeptides. Utilization of waste materials as low-cost substrates for the growth of biosurfactant producers has emerged as a feasible solution for economical biosurfactant production. In this study, fish peptone was generated through enzyme hydrolyzation of smashed tuna (Katsuwonus pelamis). Biosurfactant (mainly surfactin) production by Bacillus subtilis ATCC 21332 was further evaluated and optimized using the generated fish peptone as a comprehensive substrate. The optimized production conduction was continuously assessed in a 7 L batch-scale and 100 L pilot-scale fermenter, exploring the possibility for a large-scale surfactin production. The results showed that Bacillus subtilis ATCC 21332 could effectively use the fish waste peptones for surfactin production. The highest surfactin productivity achieved in the pilot-scale experiments was 274 mg/L. The experimental results shed light on the further production of surfactins at scales using fish wastes as an economical substrate.

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Fly ash based robust biocatalyst generation: a sustainable strategy towards enhanced green biosurfactant production and waste utilization

Abstract: Biosurfactants have been well recognized as an environmentally friendly alternative to chemical surfactants.

Cited by 10 publications

References 42 publications

Fish Waste Based Lipopeptide Production and the Potential Application as a Bio-Dispersant for Oil Spill Control

Fish Waste Based Lipopeptide Production and the Potential Application as a Bio-Dispersant for Oil Spill Control

Treatment of Comprehensive Wastewater from Chemical and Pharmaceutical Parks by Fly Ash-Coated Iron Electrode Electrocoagulation

Multi-Scale Biosurfactant Production by Bacillus subtilis Using Tuna Fish Waste as Substrate

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