Analysis of Channel Evolution and Its Influence of Xunwu River in Source Area of Dongjiang River Based on GIS Technology by CHEN Chuan, ZENG Jinfeng

“…Based on the measured data of large fixed sections at Shuibei Hydrological Station from 2010 to 2020 and the underwater topographic survey data near Shuibei Hydrological Station,this paper constructs a topographic database of underwater sections and a three-dimensional underwater topographic model near Shuibei Hydrological Station for riverbed change analysis by using GIS technology,analyzes the channel scouring and silting in single Shuibei Station section of the main stream of Xunwu River in terms of temporal and spatial change,and discusses the influencing factors and the influence of the changes.The results show that:GIS technology is an effective method to study the changes of river topography.The average annual river-bed elevation of Shuibei Station section of the main stream of Xunwu River decreased by 0.75 m from 2010 to 2015,and by 0.52 m from 2015 to 2020.With the scouring of the main channel terrain during 2010—2020,the average undercut depth is 1.27 m.The main factors for the topographic change of the river channel in this section are the sand restraining of power plants,the sand mining of river channels and the comprehensive treatment of abandoned mines.The annual undercut of river channels will increase the storage capacity of river channels and increase the reverberation time of pollutants in the downstream channels,thus worsening the water quality.In a worse case,the severe evolution of riverbed may cause the dangerous situation of the bridge across the river and even the hollowing out or collapse of embankment.…”
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An Assessment of Physicochemical Parameters of Selected Industrial Effluents in Nepal by Abhinay Man Shrestha, Sanjila Neupane, Gunjan Bisht

“…Hundreds of industries are being registered in the country annually which inevitably brings the issues regarding environmental pollution. This study has been conducted with samples of wastewater from 5 different industrial sites in 4 districts of Nepal, namely, Makwanpur, Sunsari, Morang, and Kathmandu, among which two were Waste Water Treatment Plants which treated the combined effluents collected from various sources. …”
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Potential of corn cob compost in corn fertilization on alfisol soil by Purnomo Djoko, Setyaningrum Desy

“…Corn cobs as waste material after the seeds are removed have not been utilized so they have the potential to become pollutants. Alfisols as marginal land require improvement materials for cultivated land. …”
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Nanoprocessing of Industrial Rejects for Controlling Operational Energy of Buildings by Sandeep Tembhurkar, Priyanka Nayar, Naumanuddin Azad, Rahul Ralegaonkar, Mangesh Madurwar

“…To reduce the concern, pozzolanic investigation of industrial waste is necessary, which can address the issue of uncontrolled extraction of natural resources, emission, disposal, and pollution globally.…”
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Methylene Blue Dye Photodegradation during Synthesis and Characterization of WO3 Nanoparticles by Raviteja Surakasi, null Alimuddin, Yenda Srinivasa Rao, Ashitha K. Sanuj, Pravin P. Patil, A. Jayaganthan, Ramana Hechhu

“…Semiconductor-based photocatalytic systems have found widespread use in environmental pollution cleanup and renewable energy production. …”
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ENVIRONMENTAL SYSTEM ENGINEERING (ESE): MODELING AND OPTIMIZATION OF A TEXTILE EFFLUENT DISCOLORATION PROCESS BY SORPTION by CARMEN ZAHARIA

“…In this system, environmental modeling and process optimization acts together for solving problems with environmental systems, especially for minimizing pollution, or eco-toxicological effects. The present paper proposes the study of modeling and optimization of an environmental system (i.e. textile wastewater treatment system based on sorption onto indigene peat) for its discoloration (consequently, decreasing of color, organic and inorganic loads of effluent discharged in aquatic receptor, or inside reused). …”
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Study on Ecological Security Assessment of Dongjiang River Basin in Jiangxi Province Based on PSFR Model by LIU Huili, ZHA Dongping, FENG Minglei, WAN Ying

“…In order to find out the ecological security situation of Dongjiang River Basin in Jiangxi Province,and formulate targeted ecological protection measures for protecting the clear water of the Dongjiang River,this paper determines the weight of indexes through the “Pressure-State-Function-Risk”(PSFR) model and analytic hierarchy process (AHP),establishes and optimizes the ecological security assessment system of Dongjiang River Basin in Jiangxi Province,and combines with “3S” technology and expert support system to evaluate the ecological security of Dongjiang River Basin in Jiangxi Province.The results show that:The ecological security index (ESI) of Dongjiang River Basin is 74.80,and the ecological security state of the Dongjiang River Basin is relatively safe.The main environmental problems in the river basin are the disconnection of the river system,the failure of the water environment quality to reach the standard,the reduction of the aquatic biological resources and diversity,etc.The severe human activities,the high density of hydraulic structures,the potential pollution of mining and orchard development,the degradation of important habitat area,the degradation of wetland area and the weakening of watershed ecological service function are the causes.On the basis of the assessment,the main factors affecting the ecological security of the river basin are put forward in this paper,which provides technical basis for the formulation of the next protection plan,and the index system has a strong reference significance to the fine management of ecological risk control in other basins.…”
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Assessing the Black Sea Mesozooplankton Community Following the Nova Kakhovka Dam Breach by Elena Bisinicu, Luminita Lazar

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Design and Analysis of thermosyphon Solar Water Heating System. by Kakuru, Stephen

“…In rural areas of Uganda, access to affordable hot water is a persistent challenge with communities often relying on firewood and charcoal for water heating which contributes to deforestation, air pollution, and health hazards hence respiratory diseases like asthma, lung cancer, TB, and allergic disease, climate changes and global warming. …”
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Analysis of Leaching Rate of Heavy Metals from Fly Ash at Varying Leachant pH & Cumulative Liquid to Solid Ratios by Tobby, Micheal Agwe, Sharma, S. N., Pandey, Govind

“…This continued disposal of FA into the environment makes the heavy metals contained therein to move out in the leachate generated, polluting the soil, surface and ground water sources among others. …”
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Modelling nitrogen transformation in the Lake Bunyonyi ecosystem, South‑Western Uganda by Alex, Saturday, Thomas, J. Lyimo, John, Machiwa, Pamba, Siajali

“…The lake’s sub-catchment faces environmental problems because of intensive agriculture, settlement, business and tourism activities, which consequently cause pollution of water in the lake’s system. This study, therefore, intended to determine the processes that govern nitrogen dynamism using a numerical model that takes into account various processes in the system using STELLA® 8.1.1 software. …”
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Mechanism analysis of mechanical extraction of Pleioblastus amarus fibers by saturated steam pretreatment by Xiaofeng Xu, Weipeng Yu, Xingduo Fan, Zhenhong Gong, Wei Zhang

“…Abstract Currently, bamboo fibers (BFs) are commonly processed through alkali boiling softening pretreatment, which generates wastewater that poses environmental pollution risks. This process is also complex and requires significant human and material resources. …”
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Two‐stage low‐carbon scheduling of integrated energy system based on carbon emission flow model by Jia‐Wei Xia, Dandan Hu, Chu‐Peng Xiao, Zhen‐Yu Wang, Zhi‐Wei Liu

“…Abstract Under the influence of environmental pollution and energy scarcity, integrated energy systems (IES) have received extensive attention in the field of energy supply due to their ability to consume renewable energy and enhance energy utilization. …”
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Coupling of Modular High-Temperature Gas-Cooled Reactor with Supercritical Rankine Cycle by Shutang Zhu, Ying Tang, Kun Xiao, Zuoyi Zhang

“…Furthermore, an MHTGR SC plant has higher environmental competitiveness without emission of greenhouse gases and other pollutants.…”
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Circular Economy Applied to Sludge Minimization: The STAR Project by Maria Cristina Collivignarelli, Stefano Bellazzi, Alessandro Abbà

“…The management of biological sludge from wastewater treatment plants (WWTPs) poses a significant environmental challenge due to increasing sludge production and the presence of emerging pollutants. This study investigates an innovative solution by integrating a thermophilic aerobic membrane reactor (TAMR) into the sludge treatment line of a medium-size WWTP, aiming to minimize biological sludge output while enhancing resource recovery. …”
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Tower building model based on sustainable social development and its effects on the preservation of Tehran\'s urban environment by Valiollah ghasemi, afshin ghorbani param

“…The most significant finding of this research is that population growth has fueled the construction of tall buildings, which in turn has contributed to issues such as excessive consumption of natural resources and fossil fuels, destruction of natural habitats, decline in social interactions, climate change, increased traffic congestion, and heightened air pollution. These issues have become a complex and seemingly insurmountable crisis.…”
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Merits photocatalytic activity of rGO/zinc copper ferrite magnetic nanocatalyst for photodegradation of methylene blue (MB) dye by Osama H. Abuzeyad, Ahmed M. El-Khawaga, Hesham Tantawy, Mohamed Gobara, Mohamed A. Elsayed

“…Abstract The world is now facing a water scarcity crisis due to waste, pollution, and uneven distribution of freshwater resources, which are limited. …”
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Photocatalytic Degradation of Aniline Using TiO2 Nanoparticles in a Vertical Circulating Photocatalytic Reactor by F. Shahrezaei, Y. Mansouri, A. A. L. Zinatizadeh, A. Akhbari

“…The results of the experiments indicated that it can therefore be potentially applied for the treatment of wastewater contaminated by different organic pollutants.…”
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Then and Now: COVID-19 Pandemic Lockdown Misfire Atmospheric Methane over India by Manoj Hari, Rajesh Kumar Sahu, MS Shyam Sunder, Bhishma Tyagi

“…Abstract COVID-19 lockdown resulted in the revival of the environment due to reduced emissions of various pollutants globally. In particular, aerosols, NOx and SO2 showed significant reductions at most places. …”
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Greenhouse Gases Emissions from Wastewater Treatment Plants: Minimization, Treatment, and Prevention by J. L. Campos, D. Valenzuela-Heredia, A. Pedrouso, A. Val del Río, M. Belmonte, A. Mosquera-Corral

“…In this study, three possible ways to reduce these emissions are discussed and analyzed: (1) minimization through the change of operational conditions, (2) treatment of the gaseous streams, and (3) prevention by applying new configurations and processes to remove both organic matter and pollutants. In current WWTPs, to modify the operational conditions of existing units reveals itself as possibly the most economical way to decrease N2O and CO2 emissions without deterioration of effluent quality. …”
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