The biodegradability ofN, N Octadecyldimethylamine, a long-chained aliphatic amine, was studied in a biotreatability system. The study serves as a precursor to the application ofcompost biofiltration to treat odorous waste gases containing long-chained alkyl amines (e.g., emitted by spray-painting operations). The biodegradability ofthe amine was determined by evaluating contaminant removal and...

Industrial development and extensive use of heavy metals have led to the problem of environmental pollution. Nickel compounds are toxic to plants and have detrimental effects on their growth. Valerian is a plant used in herbal medicine. Considering the hazards of nickel, various methods have been developed to remove this contaminant from herbs irrigation wastewater, including the common chemica...

The purpose of the study is preparation silica aerogels by using hydro(solvo)thermal synthesis assisted sol-gel method, SiO2 particle-added aerogels, and investigation their potential use in environment energy fields. It has been observed that prepared can be used as an adsorbent for organic contaminant removal applications. progressed rapidly reaction NaBH4 with methanol particle embedded aero...

This letter challenges the concept that the metallic iron (Fe) surface contributes directly to the process of micro-organism inactivation in aqueous solutions. It is shown that any antimicrobial properties of Fe is related to the cycle of expansion/contraction accompanying aqueous iron corrosion. This demonstration corroborates the concept that aqueous contaminant removal in the presence of Fe ...

background: nitrate is an acute and well-known hazardous contaminant, and its contamination of water sources has been a growing concern worldwide in recent years. this study evaluated the feasibility of nitrate removal from water using the traditional coagulants alum and ferric chloride with lower concentrations than those used in the conventional coagulation process. methods: in this research,...

In recent years, there has been an increasing use of engineered magnetic nanoparticles for remediation and water treatments, leading to elevated public concerns. To this end, it is necessary to enhance the understanding of how these magnetic nanoparticles react with contaminants and interact with the surrounding environment during applications. This review aims to provide a holistic overview of...

industrial development and extensive use of heavy metals have led to the problem of environmental pollution. nickel compounds are toxic to plants and have detrimental effects on their growth. valerian is a plant used in herbal medicine. considering the hazards of nickel, various methods have been developed to remove this contaminant from herbs irrigation wastewater, including the common chemica...

The ability of soil venting to inexpensively remove large amounts of volatile organic compounds (VOCs) from contaminated soils is well established. However, the time required using venting to remediate soils to low contaminant levels often required by state and federal regulators has not been adequately investigated. Most field studies verify the ability of a venting system to circulate air in ...

Microbial growth on and utilization of environmental contaminants as substrates have been studied by many researchers. Most times, substrate utilization results in removal of chemical contaminant, increase in microbial biomass and subsequent biodegradation of the contaminant. These are all aimed at detoxification of the environmental pollutants. Several microbial growth and biodegradation kinet...

AND YUEFENG F. XIE aloacetic acids (HAAs) are a group of disinfection by-products (DBPs) regulated under the Stage 1 Disinfectants/Disinfection Byproducts Rule (D/DBPR). The maximum contaminant level for five HAAs is 60 μg/L. These five regulated HAAs are monochloroacetic acid (ClAA), dichloroacetic acid (Cl2AA), trichloroacetic acid (Cl3AA), monobromoacetic acid (BrAA), and dibromoacetic acid ...