Advances In Environmental Technology

• Professor at Iranian Research Organization for Science and Technology

aet.irost.ir Evaluation of some regression models in prediction of dissolved oxygen and water temperature of Jarreh dam, Iran Najmeh Anbarpour, Amir Naserin Advances in Environmental Technology, 2025 The climate change phenomenon has resulted in increased unpredictability regarding water availability in dry and semi-dry areas. This challenge affect...

The escalating global demand for energy and the imperative to address greenhouse gas emissions have spurred the exploration of alternative energy sources. Microbial Electrolysis Cells (MECs) have emerged as a promising technology, converting organic compounds into electrical energy and hydrogen gas. A recent breakthrough, namely a hybrid (H-MEC) sy...

The discharge of textile effluents induces organic pollutants that necessitate attention to ensure environmental sustainability. This study presents eco-synthesis and an enhanced adsorption-photocatalyst over a Clay/TiO2/CTAB composite for photodegradation of an organic dye pollutant (Methyl Orange; MO). Natural clay used in this work was purified...

This study attempts to fill the critical need for comprehensive data on pond water quality in the central region of rural India, with an emphasis on the industrial and agricultural zone of Chhattisgarh's Raipur district. Geospatial tools were used to map pollution distribution and identify contamination hotspots across the district. The study emplo...

Flares are recognized as significant environmental risks that impact ecosystems. This research aims to analyze the impact of flares on ecosystem pollution and human health in the Persian Gulf. Specifically, it focused on modeling sulfur dioxide (SO2) emissions from an offshore flare at the South Pars gas platform using AERMOD software for accurate...

Researching efficient and green methods for removing toxic heavy metals from contaminated environments is of paramount importance. In this study, ZIF-8 nanoparticles were successfully synthesized at ambient temperature and pressure using a non-toxic water solvent. The synthesized nanoparticles underwent characterization through Brunauer-Emmett-Tell...

The slaughterhouse industry generates large volumes of wastewater with high pollutant levels, such as biological oxygen demand (BOD) and chemical oxygen demand (COD). This study investigates using anaerobic baffled reactor (ABR) technology with predetermined hydraulic retention time (HRT) to treat slaughterhouse wastewater containing BOD and COD. T...

Background Conventional techniques for water disinfection are fraught with issues like personnel exposure to damaging radiation and formation of harmful and carcinogenic disinfection byproducts. There are difficulties related to transportation and handling, and expensive capital and working costs also are involved like costs associated with on-site...

A 0.15 µm dead-end immersed hollow fiber membrane and filamentous fungus Aspergillus oryzae were used in a membrane bioreactor (MBR) for treatment of baker's yeast wastewater. The fungus was adapted to the wastewater in the bioreactor for two weeks before continuous process. Average organic loading rate of 4.2 kg COD/m 3 .d was entered the bioreact...

In regard to wind flow in the cities, obtaining a minimal level of pollution in the environment is achievable. Different policies have been considered for minimizing urban pollution such as the attachment and/or reduction of building parts like air-traps, ceiling forms, and so on. Due to an increase in population in cities and an increasing need fo...

Environmental contamination, which is growing around the world, is a serious problem that cannot be neglected. Among all contaminations, water pollution is a major problem. Azo dyes are one of the largest groups of pollutants found in the drinking water, dyestuff and the food and textile industries. TiO2/Fe3O4 and TiO2/Fe2O3 nanocomposites with var...

The op miza on of process condi ons for the degrada on of Acid Blue 193 by UV/peroxydisulfate was investigated using response surface methodology (RSM). The effects of four parameters namely initial K 2 S 2 O 8 concentration, UV irradiation, temperature, and initial dye concentration on two process responses, color removal and the rate constants of...

In the chemical industry, process intensification is needed to meet important goals such as sustainable and eco-friendly processes. For esterification reaction the " produce more with less pollution " objective can be achieved by coupling reaction and separation in a so called integrated process. In this work a model for describing the esterificati...

In this paper, a modeling tool for risk assessment analysis of the movement of hydrocarbon contaminants in the vadose zone and mass flux of contamination release into the groundwater table was developed. Also, advection-diffusion-reaction equations in combination with a three-phase equilibrium state between trapped air, soil humidity, and solid par...

In the current investigation a novel nano hybrid adsorbent MCM-41/N-(3-trimethoxysilyl)-propyl) diethylenetriamine (MCM-41/TMSPDETA) was prepared and was characterized using DLS (Dynamic Light Scattering), Fourier Transform Infrared (FTIR), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) analytical techniques and Transmission electron microsc...

In this work, styrene removal from wastewater by using sugarcane waste (bagasse) as an adsorbent was studied. Equilibrium isotherms and kinetics were determined; the effects of bagasse particle size and concentration, solutions pH, and temperature on the biosorption of styrene were studied in batch experiments. Adsorption equilibrium data was succe...

Carbon dioxide capture is a key issue in climate change mitigation. For decades the removal of carbon dioxide has been an essential step in many industrial processing operations such as the synthesis of ammonia, natural gas purification, and oil refining. In this study, a rotating packed bed has been designed for absorption of carbon dioxide from a...

The expansion of a microbial bank for the degradation of polycyclic aromatic hydrocarbons (PAHs) is crucial for removal of these persistent pollutants. In this study, five gram-negative, aerobic, non-fermentative bacterial strains (III-R3, IV-P11, IV-P13, IV-R13, and V-P18) were isolated from the activated sludge of a petrochemical wastewater treat...

In some instances, it is inevitable that large amounts of potentially hazardous chemicals like chlorine gas are stored and used in facilities in densely populated areas. In such cases, all safety issues must be carefully considered. To reach this goal, it is important to have accurate information concerning chlorine gas behaviors and how it is disp...

The purpose of this study is to investigate the performance and efficiency of Moringa seeds from different sources on turbidity. A protein analysis test was done for each source; then two different methods of extraction were compared to examine the coagulation activity for the Moringa's active ingredient. The results of sodium chloride (NaCI) extra...

In the present study, micellar-enhanced ultrafiltration (MEUF) was used to remove manganese (Mn) (II) from synthetic wastewater. The effects of different operational conditions on the filtration performance of MEUF or the membrane were studied. It was found that the transmembrane pressure has a major influence on the permeate flux and an insignific...

The present study investigated the isolation and identification of biosurfactant producing bacteria from Iranian oil wells. The biosurfactant production of bacteria isolates was evaluated and confirmed using hemolysis and emulsification tests. The biodegradation of crude oil was studied using GC and HPLC analysis. A total of 45 strains have been is...