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10 articles for “chemical oxygen demand (COD)”
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A Comparative Study of Seasonal Variability and Photocatalytic Impact on Water Quality of the Ayad River, Rajasthan
Abstract: This study examines seasonal fluctuation in Ayad River water quality, Rajasthan, India and compares the performance of titanium dioxide (TiO2)-mediated photocatalytic treatment under natural sunlight irradiance. Ayad River is a critical source of freshwater for domestic, agricultural and environmental purposes, which is increasingly stressed by urban runoff, industrial effluent and seasonality. As a follow-up to the above, water samples of four important water sources- Thurmadar, Subhas Nagar Bridge (Ayad), Kanpur …
Published in International Journal of Green Chemistry · Vol. 11, Issue 2, 2025 · pp. 1–17 Read article
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Industrial Effluent Pollution and Sustainable Treatment Strategies: An Analytical Approach
Abstract: Industrialization has significantly propelled economic development across the globe, but it has also led to the generation of vast quantities of hazardous effluents that pose serious threats to the environment and public health. Industrial effluents, depending on their origin, often contain high levels of chemical oxygen demand (COD), biological oxygen demand (BOD), total dissolved solids (TDS), toxic heavy metals, dyes, solvents, pharmaceutical residues, and other harmful substances. This research paper …
Published in International Journal of Green Chemistry · Vol. 12, Issue 1, 2026 · pp. 20–25 Read article
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Physico-Chemical Analysis of Oji-River in Enugu State,Nigeria to Ascertain its Pollution Level
Abstract: Physico-chemical investigations were carried out on Oji-river using standard methods to ascertain thelevel and sources of pollution. The distribution of pollutants due to anthropogenic activities wasreported. Evaluation revealed the mean range values of the following parameters; pH, 5.98 – 6.15,turbidity, 2.10 – 7.90 NTU, total suspended solid (TSS), 0.70 – 5.40 mgL-1, total dissolved solid (TDS),18.20 – 49.60 mgL-1, electrical conductivity (EC), 39.60 – 107.90 µScm-1, alkalinity, 20.0 – 34.0 …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 1, 2024 · pp. 1–12 Read article
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Characterization of Urine for Production of Bio-Hydrogen Gas forEnergy Utilization using Wood Saw Dusts
Abstract: Research has demonstrated the significance of urine in the area of production of BioH 2 gas for the purpose of energy utilization using wood saw dust as the raw material. The bio-nutrients of the urine was characterized by considering the following parameter and its value determined as demonstrated in the area of pH (6.80), Total Solids (TS) (6050mg/l), Total Dissolved Solids (TDS) (4250mg/l), Total Suspended Solid (TSS) (1800mg/l), Chemical Oxygen …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 12, Issue 2, 2026 Read article
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Monitoring of the Physicochemical Properties of Some Important Parameters That Induce Metal Corrosion in Water Medium
Abstract: This investigation addresses the effect of freshwater quality on metal corrosion in Choba river located in Obio/Akpo Local Government Area of Rivers State of Nigeria. The research involves the use of four different metal coupons namely Carbon Steel (CBS-D), Mild Steel (MS-B), Stainless Steel (SST-C), and Copper Steel (CPS-A). The different metal coupons were immersed in the freshwater medium and the freshwater medium is contaminated with industrial activities. The rate …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 24–36 Read article
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Treatment of Synthetic Dairy Waste in an Aerobic Bioreactor
Abstract: Bioreactors are used to treat industrial wastewater including petrochemical, pharmaceutical, agricultural, oil, dairy wastes, etc. Disposal of dairy wastes is of importance through the manufacture of milk products including cheese, butter, ice cream and processed milk. Most of the dairy industries use typical activated sludge method for their effluent treatment leading to a relatively high operation costs and problem with the disposal of large amounts of sludge. Aerobic processes are …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 1, Issue 1, 2015 Read article
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Removal of Nitrogenous Compounds Using Trickling Filter with Hexagonal Close Packed Media
Abstract: Nitrogenous compound in the domestic wastewater has the capability of impounding adverse effects on the surface water and for the purpose of this study trickling filter (TF) is utilized for the removal of pollutants, inclusive of ammonia contained in domestic wastewater. This system, which is an attached growth process, adopts the usage of media in the form of hexagonal close-packed (HCP) as a platform for the growth of biofilm with …
Published in International Journal of Water Resources Engineering · Vol. 1, Issue 1, 2015 · pp. 10–16 Read article
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DRIP IRRIGATION BY RECYCLING WASTEWATER
Abstract: Drip irrigation allows water to drip slowly to the roots of plants thus saving water, nutrients and minimizing evaporation. This study focusses on treatment of contaminated water by reducing biological oxygen demand (BOD), chemical oxygen demand (COD), eutrophication of water bodies and further using it for drip irrigation.
Published in International Journal of Water Resources Engineering · Vol. 5, Issue 2, 2019 · pp. 17–27 Read article
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Water Filtration Through Fly Ash, Sand and Charcol Filter
Abstract: This project focuses on the implementation of a sequential filtration system using fly ash, sand, and activated charcoal filter beds to treat contaminated quarry water and contaminated cleaning water from a rubber factory The goal is to diminish the concentrations of diverse contaminants found in the wastewater and enhance its overall qual The goal is to diminish the concentrations of diverse contaminants found in the wastewater and enhance its overall …
Published in International Journal of Water Resources Engineering · Vol. 9, Issue 2, 2023 · pp. 21–26 Read article
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Impact of Aerobic Treatment with Presence of Coconut Shell Media in Treating of Dairy Waste Water
Abstract: The discharge of domestic and industrial waste water to surface or ground water is very dangerous to environment. The treatment of any kind of wastewater should produce effluent with good quality. In this regard choosing an effective treatment system is important. Sequencing batch reactor is a modification of activated sludge process which has been successfully used to treat municipal and industrial waste water. In this case SBR is modified (MSBR) …
Published in International Journal of Water Resources Engineering · Vol. 1, Issue 1, 2015 · pp. 18–22 Read article