Flue gases are the gases which are produced from industries related to chemical manufacturing, petrol refineries, power plants and ore processing plants. Along with other pollutants, sulfur present in the flue gas is detrimental to the environment. Therefore, environmentalists are concerned about its removal and recovery of resources from flue gases due to its activation ability in the atmosphere to transform into toxic substances. This review is aimed at a critical assessment of the techniques developed for resource recovery from flue gases. The manuscript discusses various bioreactors used in resource recovery such as hollow fibre membrane reactor, rotating biological contractor, sequential batch reactor, fluidized bed reactor, entrapped cell bioreactor and hybrid reactors. In conclusion, this manuscript provides a comprehensive analysis of the potential of thermotolerant and thermophilic microbes in sulfur removal. Additionally, it evaluates the efficacy of a multi-enzyme engineered bioreactor in this process. Furthermore, the study introduces a groundbreaking sustainable model for elemental sulfur recovery, offering promising prospects for environmentally-friendly and economically viable sulfur removal techniques in various industrial applications.

The proliferation of emerging pollutants (EPs), encompassing a range of substances such as phthalates, phenolics, pharmaceuticals, pesticides, personal care products, surfactants, and disinfection agents, has become a significant global concern due to their potential risks to the environment and human well-being. Over the past two decades, numerous research studies have investigated the presence of EPs in wastewater and aquatic ecosystems, with the United States Environmental Protection Agency (USEPA) categorizing these newly introduced chemical compounds as emerging contaminants due to their poorly understood impact. EPs have been linked to adverse health effects in humans, including genotoxic and cytotoxic effects, as well as conditions such as obesity, diabetes, cardiovascular disease, and reproductive abnormalities, often associated with their estrogenic action. Microalgae have shown promise in the detoxification of both inorganic and organic contaminants, and several large-scale microalgal systems for wastewater treatment have been developed. However, the progress of algal bioremediation can be influenced by accidental contaminations and operational challenges encountered in pilot-scale research. Microalgae employ various processes, such as bioadsorption, biouptake, and biodegradation, to effectively remediate EPs. During microalgal biodegradation, complex chemical compounds are transformed into simpler substances through catalytic metabolic degradation. Integrating algal bioremediation with existing treatment methodologies offers a viable approach for efficiently eliminating EPs from wastewater. This review focuses on the use of algal-based biological remediation processes for wastewater treatment, the environmental impacts of EPs, and the challenges associated with implementing algal bioremediation systems to effectively remove emerging pollutants.

Since the advent of microplastics, it has become a vital component, directly or indirectly, in our daily lives. With advancements in their use, microplastics have become an integral part of personal care, cosmetics, and cleaning products (PCCPs) and emerged as a domestic source of environmental pollution. Over the years, researchers have ascertained the harmful effects of microplastics on the environment. In this context, the assessment and monitoring of microplastics in PCCPs require considerable attention. In addition, it raises concern regarding the need to develop innovative, sustainable, and environmentally safe technologies to combat microplastic pollution. Therefore, this review is an endeavor to uncover the fate, route and degradation mechanism of cosmetic microplastics. In addition, the major technological advancement in cosmetic microplastic removal and the steps directed toward mitigating cosmetic microplastic pollution are also discussed.

Biofuels are fossil fuel alternatives produced from agricultural biomass or other organic matter; considered sustainable, eco-friendly, and bioeconomic biofuels have come up as a topic of discussion for over a decade. Their practical use depends on the production methods, low cost-technology implementation, and substrate used. This review gives an insight into different generations of biofuels with their applications and implications. First-generation biofuels are produced from edible biomass, but even in highly efficient processes, their yield isn't enough to cast them as a better alternative to conventional fuels. The second-generation biofuels are produced from non-edible biomass, where the substrate is eco-friendly and provides a sustainable use of solid waste, but the pretreatment is overpriced and sophisticated technology is needed to carry out the process. Third-generation biofuels are produced from substrates like seaweed or microalgae for which no specific area or separate cultivation process is required. Biofuels such as biohydrogen produced through microbial dark fermentation, bio-syngas generated via gasification, and biodiesel obtained through transesterification, have emerged as promising and environmentally friendly alternatives to conventional fuels. These biofuels have the potential to pave the way for a bioeconomic system of fuel production, offering economic viability and efficiency. However, extensive research conducted in the field of bioenergy, several challenges persist, hindering their commercialization prospects. To overcome the problems of first, second and third-generation biofuels, fourth-generation biofuels are under development using techniques like co-culturing, nanotechnology, and genetically modified organisms. Future generations of biofuels would set a system for a circular bioeconomic pathway for sustainable development in the fuel industry.

(E)-N-[(2-methoxynaphthalen-1-yl) methylidene]-3-nitroaniline - EN2MNYM3NA crystal is grown by slow evaporation solution growth method. The studies such as single crystal XRD, PXRD, unit cell, 3Dimensional pattern, Fourier impact and Laplace level interactive as well as Hirshfeld interactions data with the finger print profile, the weak force blow and profile are completed. The lattice constants with a, b, c values as 12.8482 angstrom, 15.4087 angstrom, 7.6234 angstrom and beta as 98.04 degrees and volume as 1509.23 angstrom(3) with material's chemical formula as C18H14N2O3 The weak interactions of 50% and 75% are well enunciated with value of n as 2.93 for hardness coefficient; the anti-diabetic value for macro scaled EN2MNYM3NA as 39.92 (IC50) and the resolution and the elevated Isovalue value is 0.5; Globularity value as 0.721; Asphericity as 0.198; The scalings for the versatile energy and electron densities are well measured and reported properly. Copyright (C) 2022 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Thermal Analysis and Energy Systems 2021.

The BNBPP crystals are grown by solvent evaporation way and the crystals of BNBPP is having the molecular formula of C18H20N4O4, molecular weight as 356 and monoclinic system with space group P21/c and beta as 899.71o, a, b and c in Å as 6.0337, 12.9815, 11.4891 and volume as 899.90Å3 and crystals are analyzed for computational way and reported for structural enhancement and space group conformity and analyzed for bio activity for Anti-diabetic (AD) work for macro and nano scale and nano is well superior for AD work.

Diabetics is the ailment and a routine medication needed for the remedial measure and DADDTC is a better tool as anti-diabetic agent and is preferred in a nano form than macro/bulk due to its IC50 data and is hygroscopic in nature and is of monoclinic in nature and having good computational symmetrical outfit by using software for the unit cell and 3D effect and Halosian effect and all.

The LPAM-L Phenylalaninium Maleate crystals are well and properly grown by solution growth methodology and are analyzed for single crystalline X Ray Diffraction data for the crystalline nature and the Hirshfeld analysis for the energy, void space, Vanderwall’s effect with coloured data of potential and super cell lattice for 1,1,1 and 3,3,3 planes for the LPAM and shows appropriate anti-inflammatory study based on the amino acid present in the crystalline sample and compared for macro and nano level scales and reported.

The LPAM crystals are grown by solution growth method and are analyzed for XRD data for the lattice constants and monoclinic nature and structural explication and revealed by the elucidated data by software and identified the projection and weak interaction by Halosian and Vanderwall’s consequences and shows proper anti-diabetic character based on the amino acid presence in the specimen.

Carotenoids are naturally occurring pigments that are widely distributed in algae, fungi, bacteria, and plants. Carotenoids play a significant role in the food, feed, cosmetic, nutraceutical, and pharmaceutical industries. These pigments are effectively considered as a health-promoting compounds, which are widely used in our daily diet to reduce the risk of chronic diseases such as cardiovascular diseases, cancer, acute lung injury, cataracts, neural disorders, etc. In this context, this review paper demonstrates the synthesis of carotenoids and their potential application in the food and pharmaceutical industries. However, the demand for carotenoid production is increasing overtime, and the extraction and production are expensive and technically challenging. The recent developments in carotenoid biosynthesis, and key challenges, bottlenecks, and future perspectives were also discussed to enhance the circular bioeconomy.

Rapid population growth and other human activities have generated massive waste from various sectors in recent decades. Studies revealed that by 2050, global solid waste generation is expected to reach 70% to 3.4 billion metric tons. Thus, the authorities urgently need to provide a low-cost, efficient technology for treating waste disposal. However, it is evident that only 20% of waste is recycled, and the remaining is still being considered for landfilling. In developing countries, the generated waste is simply disposed of in an open area, which causes a severe threat to humans, animals, and the environment. To date, organic waste and fourth-generation biomass have been investigated for multiple targeted products. Thus, the present review article highlights the emerging problems in organic waste generation, management, and converting them into various value-added bioproducts. This review also deals with the conversion of multiple biofuels such as liquid, solid, gaseous, and bioelectricity from organic waste resources. Besides, the latest approaches in organic waste are also detailly addressed for the production of value-added bioproducts such as bioplastic, bio-compost, and organic acids. Furthermore, the techno-economic analysis (TEA) and life cycle assessment (LCA) of organic waste is also explored. The transformation of organic waste to value-added bioproducts enhances the circular bioeconomy approach by reducing waste, increasing energy production, and other healthcare products. Finally, it is concluded that the utilization of organic waste to value-added bioproducts and biofuels production will be helpful in achieving high energy security, environmental protection, as well as enhancing the bioeconomy perspective.