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Volume 26

Global NEST Journal cover

Global NEST Journal

ISSN numbers
1790-7632
2241-777X

Volume

Volume number
26
Publication year
2024

Cyanide removal from aqueous solution by oxidation with hydrogen peroxide in the presence of activated alumina-supported copper catalyst

by

Farid Halet et al. View all

Water and Wastewater Treatment

Cyanide compounds are widely used in some electroplating, chemical and metallurgical industries. They are often found in their liquid discharges. This work highlights the performance of an activated alumina-supported copper catalyst in the removal of cyanide by oxidation with hydrogen peroxide in...

Cyanide Oxidation +3 more

Analysis model of flood spatiotemporal change characteristics based on k-means clustering algorithm

by

Wei Zhang et al. View all

Floods, Droughts and Water scarcity

In order to analyze the spatiotemporal change characteristics of regional flood disaster, analyze the main change characteristics and hydrological response of precipitation distribution in Guangxi, and improve the comprehensive utilization efficiency of water resources, this paper introduces the k...

Mountain flood disaster Mann-Kendall trend test +3 more

Screening, Identification, and Optimization of Sulfur-Oxidizing Bacteria from Post-coal Mining Ponds of Different Ages in Samarinda, East Kalimantan, Indonesia

by

Eko Kusumawati et al. View all

Water Quality

This research was conducted to isolation, screening, identification, and culture conditions optimization (pH, temperature, thiosulfate concentration, and incubation period) of potential sulfur-oxidizing bacterial (SOB) to reduce sulfur concentrations in post-coal mining ponds water of various ages...

bioremediation coal mining +2 more

Formaldehyde degradation using Biofilter loaded with Compost, Vermiculite and Activated Carbon: Performance and Optimization

by

Dr.J.Jeyanthi et al. View all

Air Quality

Formaldehyde is one of the typical indoor pollutants causing theprevalence of acute health issues among those residing in indoor environments. Biofiltrationis a commonly adopted technique to treat indoor air pollutants. In this investigation, a biofilter was fabricated and compactly filled with...

biofilter EBRT +4 more

Evaluation of aqueous phase adsorption of Acid Brown on mesoporous activated carbon prepared from Azolla Pinnate seaweed

by

Hariharan T et al. View all

Water and Wastewater Treatment

A mesoporous activated carbon was produced from the Azolla Pinnate (AP) seaweed by two-step chemical activation technique using sulphuric acid as activating agent. The adsorption of Acid Brown (AB) from aqueous solutions is examined using the produced carbon (AP). The produced activated carbon...

Acid Brown Azolla Pinnate +3 more

Transforming waste into sustainable building materials: Properties and environmental impacts of Geopolymer concrete with recycled concrete aggregates

by

Periyasamy L et al. View all

Solid Waste Management

Industrial by-products such as cementitious materials or aggregates have the potential to mitigate the adverse environmental effects associated with traditional cement manufacture. Geopolymer Concrete (GPC) is more eco-friendly than conventional concrete because it does not require cement. GPC with...

Geopolymer concrete sustainability +3 more

Conversion of the styrofoam waste into a high-capacity and recoverable adsorbent in the removing the toxic Pb(II) from water media

by

Wahyuni et al. View all

Water and Wastewater Treatment

The sequential nitration and magnetization of waste styrofoam to form a novel adsorbent has been investigated. The novelty of this study assigned approach lies in the introduction of an anionic surface on the styrofoam, enabling it to adsorb cationic Pb2+ ion, combined with its magnetic property...

Styrofoam magnetic +5 more

Utilizing Manilkara zapota seed oil for biodiesel production and conducting an investigation into its properties and characteristics

by

Dr.N.Kanthavelkumaran et al. View all

Biowaste

Biodiesel can be derived from the oils of fruit seeds for powering diesel engines, and this study focuses on extracting biodiesel from Manilkara Zapota seeds, which are readily available and not intended for human consumption. The primary aim is to underscore the use of non-edible oils as a cost...

Ethanol fermentation +6 more

Investigation of Key Technologies for Energy Saving and Consumption Reduction in Chongqing Municipal Wastewater Treatment Plants Based on Carbon Emission Reduction Contribution

by

Guanyu X, Qiyu Y, Hanyi Y, Yongheng W

Water and Wastewater Treatment

In this paper, based on the factors of treatment process, treatment scale, as well as water quality, the level and distribution of electricity consumption, drug consumption, and indirect carbon emission of five typical wastewater treatment plants (WWTPs) were examined. The distribution of...