Poultry litter (PL) has a high solid and organic nitrogen content that is converted into NH3 during anaerobic digestion (AD), requiring the dilution of PL influent prior to AD. With nutrients extracted from the AD effluent, the water could be reused for influent dilution or for other purposes, while creating a designer nutrient product from the PL matrix. The study goal was to determine the effectiveness

The micropollutant carbamazepine (CBZ) is persistent and resistant to conventional wastewater treatment. This study investigated the role of fermentative acidogenic bacteria (FAB) and sulfate‐reducing bacteria (SRB) for CBZ biodegradation and volatile fatty acid (VFAs) production.

Membrane fouling is one of the major drawbacks in microalgae harvesting which prevents the widespread application of membrane filtration. This study investigates the effects of operating parameters on the filtration performance and the fouling phenomenon of a pilot‐scale microfiltration (MF) system equipped with different ceramic membranes for Chlorella vulgaris culture harvesting.

The membrane photobioreactor is a combination of membrane technology and the photobioreactor system. It is an economic and efficient system for microalgae cultivation. Light cycles and its intensity are significant parameters in the biomass production and synthesis of metabolites, such as protein and carbohydrates, within the microalgae cells. These parameters can, therefore, have a significant impact

Rapid and precise manipulation of droplets in microfluidic devices is in greater demand than ever. Droplet fusion and separation based on dielectrophoresis (DEP) in particular, commonly employed in a variety of biomedical operations, are studied extensively. Here, a full‐scale computational study is performed to understand the mechanism for the fusion of relatively small microdroplets. Based on the

Biological treatment of effluents containing H2S and ammonium are of great interest as both can trigger serious environmental problems when disposed of. The aim of this study was to optimize the production of biosulfur from the partial oxidation of sulfide in sulfide‐ and ammonium‐containing streams. Biological performance was evaluated under various aerating conditions and key kinetic parameters were

Food is often wasted due to real or perceived concerns about preservation and shelf life. Thus, precise, accurate, and consumer‐friendly methods of indicating whether food is safe for consumers are drawing great interest. The colorimetric sensing of biogenic amines released as food degrades is a potential way of determining the quality of the food. Herein, we report the use of the fruit extract genipin

The application of microalgae biotechnology, which can recover nutrients from wastewater, improve water quality, and feed some aquatic animals, is becoming an emerging trend in the development of eco‐friendly aquaculture. Previous studies explored a variety of models to support the use of microalgae in aquaculture practice, verifying the feasibility and advantages of microalgae‐based aquaculture. However

Olive mill wastewater (OMW) represents an environmental problem due to its high organic load and relevant concentration of phenolic compounds. OMW treatment and disposal represents a relevant challenge and cost for olive mills and multi‐utilities in charge of waste management in Mediterranean countries. The goal of this study was to develop an anaerobic co‐digestion (co‐AD) process of OMW and sewage

Enzymatic hydrolysis of lignocellulose is regarded to be the most efficient route to producing fermentable sugars, one kind of promising future biofuels, while physiochemical pretreatment is the initial but most critical step for the efficient utilization of lignocellulose.

Deep eutectic solvents (DESs) are prepared by mixing solid organic precursors to form a liquid driven from strong hydrogen‐bond interactions. The physical and chemical properties of these compounds have been widely investigated, and it has been shown that they are benign media for biotransformations, organicsynthesis, biodieselpreparation, and a sustainable media for nanoscale and functional materials

During the last decade, deep eutectic solvents (DESs) have emerged as a promising alternative to traditional organic solvents, from both environmental and technological perspectives. The number of structural combinations encompassed by DESs is tremendous; thus, it is possible to design an optimal DES for each specific enzymatic reaction system. In (bio)catalytic processes, a DES can serve as solvent/co‐solvent

Polyaniline is well known for enhancing hydrophilicity and antifouling properties, which could be beneficial for protein separation processes in membranes. The development of polyaniline in the presence of cupric chloride as an oxidant was a target for better distribution.

The present work focused on a harmless treatment of hazardous substances in spent commercial selective catalytic reduction (SCR) catalyst by using cement as a binder. The spent V2O5‐WO3/TiO2 SCR catalysts were ground and mixed with the cement to prepare the solidified products, according to a simple method in this study. The solidified products were subsequently submitted to a characterization process

Pistachio shell is one of the examples of lignocellulosic biomass and has a high potential to be converted into chemicals, biopolymers and biofuels. Alkaline pre‐treatment is an effective way to extract hemicellulose and increase the cellulose hydrolysis. However, there are some disadvantages of this process such as long processing time, formation of high amount of degradation products. Microwave irradiation

The presence of azo dyes in wastewater from the textile industry is a major environmental concern. The dyes not only make water aesthetically unacceptable, but also have severe toxicological concerns. Research into treatment processes for removal of dyes has focused primarily on decolourization and little attention has been focused on analysis of the degradation products, that could plausibly be more

Deep eutectic solvents (DESs) have been tested as promising green solvents for the microwave assisted extraction of phenolic compounds from brewer's spent grain (BSG). Firstly, a preliminary screening with four different DESs was carried out in order to determine the most effective DESs to recover phenolic compounds (measured as total phenols) from BSG. Later, an experimental design using the DESs

With the development of modern industry, the task of replacing ordinary plastic products with environmentally friendly antibacterial materials is imminent. In this study, natural cellulose from sugarcane were compounded with glycerin and chitosan to prepare a cellulose/glycerin/chitosan (CGC) degradable composite membrane with antibacterial properties. The physical and chemical structure of the CGC

In this study, graphitic carbon nitride (g‐C3N4) photocatalyst was successfully synthesized via calcination of urea under argon flow and tested for methyl paraben (MeP) degradation in aqueous media under simulated solar light for the first time. Its structural, morphological and optical properties were investigated with the use of XRD, DRS and BET method.

This study explores the feasibility of three different inoculum sources (anaerobic, aerobic and anoxic sludge from conventional sewage treatment plants) together with the potential of biomass carrier for Anaerobic ammonium oxidation bacteria (anammox) cultivation. Fed‐batch reactors were operated with synthetic medium at constant different temperatures.

Phosphogypsum (PG) is a solid waste from a wet process of phosphoric acid and its main component is CaSO4·2H2O. However, the temperature of PG decomposition is above 1200 °C. In this study, the decomposition temperature of PG was decreased using a small amount of coke as reducing agent, and the decomposition rate of PG can be further increased using potassium feldspar (K‐feldspar) as an additive to

Reverse osmosis (RO) plays an increasingly important role in boron removal. In this study, novel polyamide RO membranes and modules with high boron rejection were fabricated by cross‐linked glutaric dialdehyde (GA) grafting. To evaluate the influence of GA grafting on membrane materials, the surface properties before and after modification were analysed.

CO2 reforming of methane, also known as dry reforming of methane, has received significant attention because this technology can convert notorious greenhouse gases (CH4/CO2) into useful syngas (H2/CO). However, this technology still hasn't been commercialized, primarily due to the lack of feasible catalysts.

Photocatalytic degradation of Orange II (OII) dye has been carried out with commercially available materials, namely sodium Y zeolite (NaY), ammonium Y zeolite (NH4Y), and reduced graphene oxide (RGO). The catalysts were characterized by N2 adsorption at −196 °C, pH at the point of zero charge (pHpzc), and ultraviolet/visible (UV/Vis) diffuse reflectance absorbance. The initial screening of processes

3‐Methyl‐3‐penten‐2‐one (3M3P) is an indispensable raw material used for the synthesis of OTNE (octahydrotetramethyl acetophenone), a synthetic ketone fragrance known by commercial trade names, such as Iso E Super®, which is one of the most important ingredients in perfumes. This work is the first to unravel the reaction route and kinetics for the synthesis of 3M3P via the cross‐aldol condensation

In the present study, the Fenton process was used as an effective method to treat several contaminants present in wastewaters. The case study is a pig farm located in the community of Loma de Zempoala, Guanajuato, Mexico, where the Fenton process in continuos flow assisted with sunlight was used to treat a real piggery wastewater.

Dibromomethane (DBM) and 1,2‐dibromoethane (DBA) are two brominated volatile contaminants used in several industrial applications which are often detected in groundwater. The electrochemical degradation of DBM and DBA was studied at different cathode potentials (−0.8, −1 and −1.2 V versus Standard Hydrogen Electrode) in aqueous solution using an inexpensive graphite fiber brush electrode.

Inorganic phosphate (Pi) is key to improved crop yields; however, agricultural drainage leads to the accumulation of this nutrient in aquatic ecosystems and promotes the formation of harmful algal blooms. The aim of this study was to produce a hydrogel with high binding capacity and affinity towards Pi produced from carboxymethyl cellulose (CMC) and iron (III) chloride (FeCl3).

Sugarcane bagasse is a heterogeneous and organized material that needs a pretreatment to access the polysaccharides (cellulose and xylan). The particle size of a non‐milled bagasse can influence the xylan and xylose solubilization, as well as the enzymatic hydrolysis of the pretreated material. Using bagasse selected on 16‐, 30‐, 40‐ and 50‐mesh sieves: xylan solubilization was performed with hydrogen

Chitin, and especially its deacetylated variant chitosan, has many applications, e.g. as carrier material for pharmaceutical drugs or as a flocculant in wastewater treatment. Despite its versatility and accessibility, chitin, the second most abundant polysaccharide on Earth, has so far been commercially extracted only from crustaceans and to a minor extent from fungi. Insects are a viable alternative

Novel hybrid absorption coupled membrane filtration technology is proposed for the recovery of oil from produced water. This study aims at developing a low cost superhydrophobic‐superoleophilic kaolin‐based hollow fiber ceramic membrane using phase inversion and sintering technique for recovery of oil from synthetic produced water. The influence of different organosialanes such as methyltriethoxysilane

l‐asparaginase (ASNase), a biopharmaceutical enzyme used in the treatment of childhood lymphoid malignancies, is commercially produced from Escherichia coli and Erwinia chrysanthemi. However, it causes severe adverse effects due to allergenic prokaryotic epitopes on the protein surface. ASNase II from Saccharomyces cerevisiae can be a promising alternative source of this enzyme. In this study, conditions

Due to the rapid development of shale gas extraction, the treatment of flowback water (FW) is becoming one major challenge because of its high saline, high ammonium (NH4+), high phosphorus (PO43−), and complex organic contents. This study aimed to treat the high‐salinity synthetic FW and recover nutrient using the air‐cathode (PMo/CB) microbial desalination cells (MDCs).

Due to the high energy density of lithium‐ion batteries, they have become the main power sources for electric vehicles. However, lithium‐ion batteries suffer from severe capacity fading during their electrochemical cycles. Therefore, it is significant to develop perfect electrode materials for lithium‐ion batteries. It is known that the traditional anode materials have low specific capacity value and

MAPK/HOG signaling pathway plays a key role in the response of yeast to external hyperosmotic stress. Over the past few decades, the regulation mechanism for this pathway in the robust yeast, Saccharomyces cerevisiae, has been elucidated. However, the weak ability of the biotechnical workhorse, Pichia pastoris, in surviving hyperosmotic stress suggests a unique regulatory mechanism needing further

Sustainable wastewater management mostly implicates treatment cost, viability, and performance of an appropriate system in addition to reuse and recycling to meet the present social needs. In the present study, algal technology was coupled with paddy‐soaked rice mill wastewater (PSRMW) treatment to enhance efficient treatment as well as the economic feasibility of algal‐based eco‐friendly products

Membrane technology is an attractive alternative to conventional water/wastewater treatment technologies as it is sustainable and can be used as independent processes as well as be a part of integrated systems with other treatment technologies. Notwithstanding the abundant benefits that membrane‐based systems offer, their commercial application is overshadowed by the ubiquitous fouling. However, accurate

Meat production is associated with the generation of huge quantities of meat processing wastewater (MPWW) which has high concentrations of nutrients. The utilization of Scenedesmus sp. in the phycoremediation process to treat MPWW has attracted growing interest, but there is inadequate information on the management of biomass of this micro‐organism. This study aims to optimize the harvesting of Scenedesmus

A novel combustion process of solid waste from dioctyl phthalate (SWDOP) production was developed. The SWDOP has high organic combustible components, high calorific value, low ash content and no halogen element, and is especially suitable for combustion treatment. The combustion and emission characteristics of SWDOP at the diffident condition in a tube furnace was investigated. Major pollution factors

The meso‐microporous ZSM‐5 is used for treating the complicated industrial organic waste gas, owing to its good hydrophobicity, excellent thermal and hydrothermal stability, and lower mass transfer resistance than conventional ZSM‐5, resulting in its great adsorption property for volatile organic compounds (VOCs). In this paper, different types of meso‐microporous ZSM‐5 (NZ5, MZ5) were prepared using

Persimmon tannin, extracted from young astringent persimmons, is a cheap waste biomass material. The abundant phenolic hydroxyl groups in persimmon tannin are known to display excellent affinity to Mo(VI). In addition, ligands containing N donor atoms, as brilliant adsorption groups, can strongly interact with Mo(VI) when the groups are protonated under acidic conditions. Therefore, the introduction

Crude glycerol is an industrial by‐product of biodiesel producing companies and requires a high cost for purification. In fact, it is a good carbon source and can be used for lipid production from oleaginous microbes. However, crude glycerol has several impurities that may impact the cellular metabolism for lipid production.

Sericin (SS) induces nucleation of bone‐like hydroxyapatite (HAp) when used as an organic matrix. HAp/SS nanocomposites have been conventionally synthesized through precipitation in stirred tank reactors (STs). Despite its simplicity, this process is time consuming and presents difficulties in scale‐up. In our study, HAp/SS nanocomposites were successfully synthesized in a ST and in a meso‐oscillatory

The discharge of liquid textile effluents remains a major concern for the ecosystem. The combination of glidarc plasma and biological treatment is an excellent technique that overcomes the disadvantages of each method used separately, but the kinetics of degradation and the energetic studies are poorly known. This study reports on the optimization of the kinetics of biodegradation of Bismark brown

Biomining is one of the few cost‐effective technologies that can be applied to low‐grade ores and also mining tailings. In the current work, the bio‐oxidation of a gold sulfide flotation tailing at high pulp densities was investigated and information concerning the high cyanide consumption commonly reported in bio‐oxidative processes is discussed in order to promote less use of this chemical reagent

Aluminium‐based drinking water treatment residual (Al‐DWTR) has been used as an emergent substrate in laboratory‐scale and pilot‐scale biofiltration systems (biofilters and constructed wetlands) for its good affinity for phosphorus (P) adsorption. However, there is a concern about whether the P adsorption process will contribute to substrate clogging. Two laboratory‐scale up‐flow biofiltration systems

Bacteriophages are bionanoparticles with several applications in different biotechnology‐based products. Among them, vaccines have the potential to treat antibiotic‐resistant bacteria and parasitic infections. Traditional methods for their recovery and purification rely on precipitation with polyethylene glycol (PEG) and NaCl. However, the applicability of such an approach is limited, due to large‐scale

Phenylalanine dehydrogenase (PheDH; l‐phenylalanine: NAD+ oxidoreductase, deaminating (EC 1.4.1.20)) is widely used in the pharmaceutical industry. It is the main biocatalyst in the enantioselective synthesis of l‐phenylalanine, related l‐amino acids as well as some non‐natural amino acids which are important pharmaceutical intermediates. However, growing demands for PheDH and its limited production

Lithium–sulfur (Li–S) batteries are one of the most suitable energy storage devices for electronic requirements due to their high energy density and specific capacity. In the past decades, many researchers have devoted themselves to developing high performance Li–S batteries. However, the application of LiS batteries continues to be hindered because of the severe polysulfide migration upon electrochemical

The extracellular electron transfer (EET) between microbes and electrodes modified by graphene‐based functional material has attracted increasing attention. EET is an important process through which the anode can act as the acceptor for the electrons produced via microbial respiration, and it also plays a key role in organic matter degradation and nutrient cycling in the environment.

Wheat bran contains high levels of phenolic acids having important roles in the prevention and treatment of diabetes, heart condition and many cancer diseases. Ancient wheats contain high levels of these valuable ingredients. Therefore, an ultrasound‐assisted extraction (UAE) technique was optimized using response surface methodology for the extraction of major phenolic acids (ferulic, salicylic, 2‐hydroxycinnamic

Cheese production occupies a small but growing share of the current dairy industry. Industrial cream cheese production involves the complex scheduling of multiple batch fermenters and various downstream units. However, significant end‐time variation from different fermentation batches makes downstream scheduling challenging and thus decreases the process throughput.

Novel nanocomposite membranes with spatial distribution of nanoparticles (NPs) were fabricated for forward osmosis (FO) applications. In this work, TiO2 and Al2O3 NPs were used as hydrophilic additives in order to improve the performance and fouling resistance of cellulose acetate (CA) FO membrane.

Tubular Photobioreactors (PBR) present better productivity using static mixers but they consume large amounts of energy. In this study, a tubular PBR is presented with a new static mixer that produces swirl mixing, inducing light–dark (LD) cycles, and adequate uptake of nutrients in the culture. This study was focused on diminishing the pumping energy required for culture transport while improving

5‐hydroxymethylfurfural (HMF) and 5‐ethoxymethylfurfural (EMF) are biomass‐based value‐added chemicals. Various catalytic systems have been studied for converting fructose into HMF and EMF. A more efficient and stable solid acid catalyst is highly desirable for the conversion process.

In this study, the enhancement of propionic acid production from a model feedstock mimicking kitchen waste was investigated. For that purpose, two operational runs of a semicontinuous anaerobic hydrolysis reactor were carried out at pH 6.0 ± 0.1 and mesophilic (30 °C) temperature. Two different types of inocula, a mixed microbial culture selected over 24 months for growth on cellulose and a culture

1,4‐Butanediol (1,4‐BDO) is a four‐carbon diol used for industrial applications such as organic solvents, and the production of adhesives, fibers and polyurethanes. 1,4‐BDO currently is produced through several petrochemical routes: hydrogenation of maleic anhydride, isomerization of propylene oxide, acetoxylation of butadiene, and the reaction between formaldehyde and acetylene. The current trends

tert‐Butanol (TBA) and water form an azeotrope at atmospheric pressure. Therefore, extractive distillation was adopted to separate the azeotropic mixture. As a new kind of solvent, the ionic liquids (ILs) 1,3‐dimethylimidazolium dimethylphosphate ([MMIM][DMP]) and 1‐ethyl‐3‐methylimidazolium diethylphosphate ([EMIM][DEP]) were chosen to break the azeotropic point in extractive distillation.

Isophthalic acid (IPA) is commercially produced using the Co–Mn–Br catalyst system, which suffers from the shortcomings of the discharge of CH3Br and corrosion of equipment. It is necessary to develop a technology to avoid the pollution caused by bromide. The production of IPA from the oxidation of m‐xylene (MX) by air is realized under catalysis with H3PW12O40 (HPW) loaded on carbon and cobalt.