Degradation of organophosphoric esters (OPEs) in leachate from a sea-based solid waste disposal site was investigated by laboratory experiment. Aryl-phosphates, tricresyl phosphate and triphenyl phosphate, in leachate rapidly decreased to less than the detection limit within 20 days under aerobic condition, suggesting high biodegradability. These phosphates also decreased in sterilized leachate...

Due to complex composition of leachate, the comprehensive leachate treatment methods have been not demonstrated. Moreover, the improper management of leachate can lead to many environmental problems. The aim of this study was application of Fenton process for decreasing the major pollutants of landfill leachate on Kermanshah city. The leachate was collected from Kermanshah landfill site and tre...

Background: The municipal solid wastes (MSWs) are disposed in open dumps, which have no leachate collection and removal system, in the Caspian region of Iran. Leachate readily reaches the nearby water resources such as streams, rivers, lakes, and sea. Therefore, understanding the quality and quantity of open dump leachate is vital to the proper treatment of leachate. Methods: The leachate samp...

Landfill leachate emerges as a promising feedstock for microbial fuel cells (MFCs). In the present investigation, direct airbreathing cathode-based MFCs are fabricated to investigate the potential of landfill leachate. Three MFCs that have different cathode areas are fabricated and investigated for 17 days under open circuit conditions. The maximum open circuit voltage (OCV) is observed to be a...

Little attention has been paid to the environmental fate of the hormones 17beta-estradiol and testosterone excreted in animal waste. Land application of manure has a considerable potential to affect the environment with these endocrine disrupting compounds (EDCs). Composting is known to decompose organic matter to a stable, humus-like material. The goal of the present study was to quantitativel...

In this review we discuss the transformation of organic matter during municipal solid waste (MSW) composting and the suitability of chemical and biochemical parameters in defining the stability and maturity of the end product. The dynamics of chemical and biochemical parameters, such as several hydrolase activities and water-soluble fractions (i.e. water soluble carbon, water soluble nitrogen, ...

One of the most versatile and remunerative techniques for handling biodegradable solid wastes is composting. Composting refers to aerobic degradation of organic material and is one of the main waste treatment methods used for treating separated organic waste. Microbes play a key role as degraders during the composting-process and microbiology of composting has been studied for decades. Microorg...

Environmental contamination caused by residual antibiotics and antibiotic resistance genes (ARGs) in concentrated animal feeding operations has drawn increasing attention. This study investigated the removal of oxytetracycline (OTC) and sulfamethazine (SMN) as well as the behavior of their corresponding ARGs through a series of simulated composting tests with swine manure. The results indicate ...

In order to increase the degradation rate of organic materials and reduce ammonia emissions simultaneously during the aerobic composting period, a commercial maturity-accelerating reagent (MAR) was employed. Comparative composting experiments were conducted: Run A with the addition of MAR in the composting mixture, and Run B without the addition of MAR, while some parameters such as organic car...

ABSTRACT- As the world's population has grown and become more urban and affluent, waste production has raised drastically. Wastewater reuse has been identified as a way to alleviate water scarcity and improve crop productivity and environmental sustainability. To address the issue, a soil column experiment was carried out in a 3 × 3 factorial randomized block design including three treatments o...