Investigation of Acid Brown 14 Removal from Aqueous Solutions Using a Catalytic Ozonation Process with CaO₂/TiO₂

Fatemeh Sahraei; Abdolmotaleb Seydmohammadi; Fatemeh Bayat; Shilan Hoseini

Volume 11, Issue 1 , June 2025, Pages 11-19

https://doi.org/10.22038/jreh.2025.26124

Abstract
  Background and Purpose: Untreated dye-containing wastewater poses severe environmental hazards due to the persistence, toxicity, and resistance to biodegradation of dyes. This study aimed to evaluate the efficiency of catalytic ozonation using calcium peroxide (CaO₂) and titanium dioxide (TiO₂) to ...  Read More

Risk Assessment of Exposure to Arsenic and Some Heavy Metals Through Drinking Water Consumption in Azadshahr (A Case Study)

Amirarsellon pardakhti; saideh usefi; Mohammad Samiee

Volume 11, Issue 1 , June 2025, Pages 20-34

https://doi.org/10.22038/jreh.2025.25882

Abstract
  Background and Objective: Heavy metals enter water supply sources through various processes and, by entering the food chain and accumulating in tissues, can cause adverse health effects on humans. Therefore, this study aimed to determine the concentration of heavy metals in drinking water sources in ...  Read More

Investigation of Heavy Metal Concentrations (Cadmium, Nickel, and Vanadium) in the Water of the Alla River, Ramhormoz City

Seyedeh Razieh Pourmousavi; Azita Koshafar

Volume 11, Issue 1 , June 2025, Pages 35-52

https://doi.org/10.22038/jreh.2025.25797

Abstract
  Background and Purpose: Heavy metals are recognized as highly hazardous pollutants, drawing significant attention from researchers, chemists, and biologists. This study, conducted in 2023, aimed to assess the contamination levels of cadmium (Cd), nickel (Ni), and vanadium (V) in the Alla River, potentially ...  Read More

Co-composting of Chicken Manure and Organic Fraction of Solid Wastes of Mashhad Medical Sciences Dining Hall

Fateme sadat Khatibi; Hosein Alidadi; Behnam Barikbin; Najmeh Afshar Kohan; Ali Akbar Dehghan

Volume 11, Issue 1 , June 2025, Pages 53-67

https://doi.org/10.22038/jreh.2025.25809

Abstract
  Background and purpose: Rapid population growth, increased consumption, and the continuous rise in municipal waste generation pose significant challenges for modern urban society, necessitating a structured waste disposal strategy. Co-composting of organic waste has emerged as an effective method for ...  Read More

Emergy Assessment of Environmental Yield Ratio and Net Emergy Performance Indicators in Urban Waste Management: A Case Study of Karaj City

Ghazal Mehri; Seyed Masoud Monavari; Shahram Baikpour

Volume 11, Issue 1 , June 2025, Pages 68-82

https://doi.org/10.22038/jreh.2025.26107

Abstract
  Background and Objective: Rapid socio-economic development has significantly increased municipal solid waste (MSW) generation. Several urban waste management strategies have been analyzed to address environmental impacts and evaluate energy-based sustainability. This study evaluates emergy-derived Environmental ...  Read More

PM2.5 Concentration Forecasting Using Decomposition Method and Artificial Neural Network

Salah Baizidi; Jamil Amanollahi

Volume 11, Issue 1 , June 2025, Pages 83-97

https://doi.org/10.22038/jreh.2025.25799

Abstract
  Background and purpose: One of the key indicators in discussions about air quality is the concentration of PM2.5 particulate matter. This research employs a combined model that utilizes the maximum overlap discrete wavelet transform, variational mode decomposition, and backpropagation neural network ...  Read More

Investigating the Impact of Scented Candles on the Emission of Polycyclic Aromatic Hydrocarbons (PAHs) and Their Health Implications: A Systematic Review

Kimia Eskandari; Parisa Sadighara; Saeed Aghebat Bekheir

Volume 11, Issue 1 , June 2025, Pages 98-110

https://doi.org/10.22038/jreh.2025.26106

Abstract
  Background and Objective: Scented candles are a potential source of indoor air pollutants, particularly polycyclic aromatic hydrocarbons (PAHs), which are classified as hazardous environmental contaminants with significant health implications. These candles, widely used in households, religious and cultural ...  Read More

Evaluation of Environmental Pollution Indices of Heavy Metals in Soil around Khuzestan Steel Co

Fatemeh Jafarian; Khoshnaz Payanadeh; Ahad Nazarpour; Ali Gholami; Kamran Mohsenifar

Volume 11, Issue 1 , June 2025, Pages 111-129

https://doi.org/10.22038/jreh.2025.26125

Abstract
  Background and purpose: Heavy metal contamination in surface soils poses significant risks due to the potential for human exposure via inhalation, ingestion, and dermal contact. This study, conducted in 2022, assessed concentrations of arsenic (As), lead (Pb), cadmium (Cd), nickel (Ni), copper (Cu), ...  Read More