Volume-3 Issue-2, November 2023 – Indian Journal of Environment Engineering (IJEE)

A184804010524

IJEE JOURNAL — Mon, 26 Feb 2024 11:27:28 +0000

The Indian Journal of Environment Engineering (IJEE) has ISSN 2582-9289 (online), an open-access, peer-reviewed, periodical half-yearly international journal. This journal is published by Lattice Science Publication (LSP) in May and November.The journal aims to publish high-quality peer–reviewed original articles in the area of Environment Engineering that covers the Social Impacts of Wastewater Collection and Treatment, Fate and Transport of Contaminants on Watersheds (Surface Water, Groundwater, Soil, Atmosphere), Environmental Biology, Microbiology, Chemistry, Fluid Mechanics, Nature and Environment, Air, Water and Land Pollution, Toxic and Radioactive Pollution, Water Supply and Resources, Agriculture and Fisheries, Transportation, Oil and Gas, Mining and Metallurgy, Industrial Processing, Resources Management and Processing, Environmental Technologies and Environmental Engineering. #Social Impacts of Wastewater Collection and Treatment #Fate and Transport of Contaminants on Watersheds (Surface Water, Groundwater, Soil, Atmosphere) #Environmental Biology, Microbiology, Chemistry, Fluid Mechanics #Nature and Environment #Air, Water and Land Pollution #Toxic and Radioactive Pollution #Water Supply and Resources #Agriculture and Fisheries #Transportation #Oil and Gas, Mining and Metallurgy #Industrial Processing #Resources Management and Processing #Environmental Technologies #Environmental Engineering #PhD ademic #Scopus #SCI #LatticeScience #Springer, #ScienceDirect #IEEE #Mendeley #Research #Scholarship #UGC #SSRN #LatticeScience #ESCI #Science #Journal #Conference #SSRN #PubLons #PhD #Academic #Scopus #SCI #LatticeScience #Springer, #ScienceDirect #IEEE #Mendeley #Research #Scholarship #UGC #SSRN #LatticeScience #ESCI #Science #Journal #Conference #SSRN #PubLons

Application of Fine Bubbles in Biofloc Aquaculture: Towards Environmental Sustainability
William Chirwa

William Chirwa, UNEP – Tongji Institute of Environment for Sustainable Development, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.

Open Access | Editorial and Publishing Policies | Cite | Zenodo | Indexing and Abstracting
© The Authors. Published by Lattice Science Publication (LSP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Biofloc Technology (BFT) is specifically designed to tackle critical challenges in aquaculture, including the reduction of excessive water usage, minimizing effluent discharge, optimizing nutrient utilization from feed, and strengthening overall biosecurity on farms. This innovative approach utilizes clusters of bacteria, algae, or protozoa within a matrix rich in particulate organic matter to enhance water quality, improve waste management, and control diseases. Given the system loading rates, there is a heightened need for elevated dissolved oxygen levels and optimal flow rates. Acknowledging the limitations of traditional aeration systems, this review hypothesizes employing fine bubbles as a panacea. The article, therefore, condenses information on fine bubble impacts in biofloc with a special focus on faster biofloc establishment, favorable microbial diversity, improved respiratory health, accelerated growth rates, optimized metabolism, improved feed conversion ratios, reducing costs, and enhanced overall aquatic health. The suitability of fine bubbles in diverse aquaculture environments is also explored with highlights on areas for further research to optimize and scale up fine bubble-fueled biofloc as an environmentally friendly aquaculture

Keywords: Environmental Footprint; Microbial Diversity; Nanobubbles; Nutrient Recycling; Sustainable Aquaculture.
Article of the Scope: Agriculture and Fisheries

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A1847054124

IJEE JOURNAL — Fri, 29 Dec 2023 10:08:32 +0000

Rainfall Trend Investigation of Hemavati Catchment, Karnataka, India
Ashwini B¹, Shivakumar J Nyamathi²

¹Ashwini B, Department of Civil Engineering, University Visvesvaraya College of Engineering, Bangalore (Karnataka), India.

²Dr. Shivakumar J Nyamathi, Department of Civil Engineering, University Visvesvaraya College of Engineering, Bangalore (Karnataka), India.

Abstract: The rainfall trend investigation study supports to judge the periodic pattern of rainfall. The quantifiable evaluation of the overall impacts of different elements, for example, changes in precipitation, temperature, evapotranspiration, environmental changes encouraged by a hazardous atmospheric deviation and human activities on the streamflow is critical for territorial appraisal of water assets and its feasible management. This study focusses on to analyze the seasonal rainfall trend in Hemavati Catchment, Karnataka, India. For the present study, thirty-two years (1990-2021) of seasonal rainfall trend has been examined using the Mann-Kendall assessment and Sen’s gradient estimation methods. The investigation has been carried out for the cold weather season (December-February), hot weather season (March-May), southwest monsoon season (June-September), and post–monsoon season (October–November) by the use of XLSTAT software and the study demonstrations that here is a varied trend in the catchment.

Keywords: Mann-Kendall test (Z), Sen’s Slope factor (Qmed), cold weather season (CWS), hot weather season (HWS), south west monsoon season (SWMS), post–monsoon season (PMS).
Article of the Scope: Nature and Environment

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B1845113223

IJEE JOURNAL — Sat, 25 Nov 2023 09:55:31 +0000

Carbon Neutral Fuels and Chemicals from Standalone Biomass Refineries
Nallapaneni Sasidhar

Nallapaneni Sasidhar, Hyderabad, India.

Abstract: The urgency to eliminate man-made greenhouse gas emissions and achieve energy security/independence by all countries justifies an energy policy that considers the major role of renewable biomass as a source of organic feedstock for producing adequate organic chemicals and biofuels on a sustainable basis and economically. This paper investigates a three-stage thermochemical process to convert wet biomass into a tailored mix of syngas for producing green methanol, hydrogen, and Fischer-Tropsch products. The three-stage thermochemical process involves the torrefaction of wet biomass using hot carbon monoxide gas, pyrolysis of torrefied biomass to produce biochar, and final gasification of the pyrolysis gases by auto thermal reforming up to 1400o C temperature. The proposed process is suitable to utilize a wide variety of biomass materials such as freshly harvested biomass without field drying, agro waste, forest/plantation litter, organic municipal solid wastes, sludge from sewage water treatment plants, solid biomass rejects from anaerobic digesters, bagasse from sugar or first-generation ethanol plants, organic solid rejects from second-generation ethanol plants, waste glycerides from biodiesel plants, industrial organic waste, etc. The proposed process offers valorization of biomass so that the net income of farmers is enhanced a fewfold by selling freshly harvested biomass. The economic analysis found that carbon-neutral hydrogen, methanol, etc can be produced below the prevailing costs of such products derived from fossil crude oil or natural gas without considering carbon credits. It is feasible in a standalone biomass refinery to use any biomass as only one bulk raw material/feedstock without any harmful emissions to water bodies or the atmosphere except carbon neutral carbon dioxide gas if not sequestrated.

Keywords: Fossil Fuels, Gasification, Pyrolysis, Torrefied Biomass, Torrefaction.
Article of the Scope: Environmental Technologies

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