Assessment of water quality variations on pretreatment and environmental impacts of SWRO desalination

Various environmental factors influence the outbreak and spread of epidemic or even pandemic events which, in turn, may cause feedbacks on the environment. The novel coronavirus disease (COVID-19) was declared a pandemic on 13 March 2020 and its rapid onset, spatial extent and complex consequences make it a once-in-a-century global disaster. Most countries responded by social distancing measures and severely diminished economic and other activities. Consequently, by the end of April 2020, the COVID-19 pandemic has led to numerous environmental impacts, both positive such as enhanced air and water quality in urban areas, and negative, such as shoreline pollution due to the disposal of sanitary consumables. This study presents an early overview of the observed and potential impacts of the COVID-19 on the environment. We argue that the effects of COVID-19 are determined mainly by anthropogenic factors which are becoming obvious as human activity diminishes across the planet, and the impacts on cities and public health will be continued in the coming years.

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Workshop on Assessment of Environmental Impacts, their Integration for Planning Water Resources Development Projects, and Water Quality Modelling, held in New Delhi, India, during 6–17 January 1986

Environmental Conservation ◽

10.1017/s0376892900036961 ◽

1986 ◽

Vol 13 (2) ◽

pp. 182-182

Author(s):

Asit K. Biswas

Keyword(s):

Water Quality ◽

Water Resources ◽

Environmental Impacts ◽

Development Projects ◽

New Delhi ◽

Water Quality Modelling ◽

Water Resources Development ◽

Resources Development

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Economic and environmental impacts of water quality protection policies: 1. Framework for regional analysis

Water Resources Research ◽

10.1029/93wr00858 ◽

1993 ◽

Vol 29 (9) ◽

pp. 3069-3079 ◽

Cited By ~ 10

Author(s):

D. J. Bernardo ◽

H. P. Mapp ◽

G. J. Sabbagh ◽

S. Geleta ◽

K. B. Watkins ◽

...

Keyword(s):

Water Quality ◽

Environmental Impacts ◽

Regional Analysis ◽

Water Quality Protection

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Análise coleta de esgoto de Contagem/MG: Uma realidade da situação sanitária do município entre os anos de 2010-14 / Analysis of sewage collect from Contagem/MG: A reality of the sanitary situation of the municipality between the years 2010-14

Caderno de Geografia ◽

10.5752/p.2318-2962.2016v26nesp1p50 ◽

2016 ◽

Vol 26 (1) ◽

pp. 50

Author(s):

André Lopes Vilaça Santos ◽

Altino Barbosa Caldeira

Keyword(s):

Water Quality ◽

Environmental Impacts ◽

Service Provider ◽

Growth Rates ◽

Minas Gerais ◽

Public Water Supply ◽

Population Growth Rates ◽

Continuous Population ◽

Belo Horizonte ◽

The City

O presente artigo buscou discutir a coleta de esgoto pela rede oficial da Companhia de Saneamento de Minas Gerais (COPASA), prestadora de serviço responsável por disponibilizar água tratada, além de coletar e tratar o esgoto, para só assim desaguá-lo nos cursos d’água de Contagem/MG. Contagem é um importante município que compõe a Região Metropolitana de Belo Horizonte (RMBH), que vem apresentando contínuos índices de crescimento populacional nos últimos anos, sendo que, a expansão do tecido urbano vem acontecendo também de maneira clandestina, promovendo desta forma, vários impactos ambientais no município, que possui em mais da metade do município, uma Área de Proteção Ambiental (APA), que possui no seu interior um manancial de abastecimento público, a represa de Várzea das Flores. Foram analisados, tabulados e transformados em gráficos, dados do Sistema Nacional de Informações sobre Saneamento (SNIS) entre os anos de 2010 e 2014, demonstrando que, o município de Contagem precisa de consideráveis avanços na coleta de esgoto, para que haja a redução dos impactos ambientais, e a melhoria da qualidade da água nos cursos d’água e reservatório do município. Palavras-chave: Esgotamento Sanitário, Contagem, Impactos Ambientais, Meio Ambiente AbstractThis paper reason to discuss the sewerage by the official of the Companhia de Saneamento de Minas Gerais (COPASA), service provider responsible for providing treated water, as well as collect and treat sewage, for only then empties it in watercourses water Contagem. Contagem is an important municipality that make up the Região Metropolitana de Belo Horizonte (RMBH), which has been showing continuous population growth rates in recent years, with the expansion of the urban fabric is also happening clandestinely, thus promoting several impacts environmental in the city, which has more than half of the municipality, an Área de Proteção Ambiental (APA), which has in its interior a public water supply, the dam Várzea das Flores. Were analyzed, tabulated and graphed, data of the Sistema Nacional de Informações sobre Saneamento (SNIS) between the years 2010 and 2014, showing that the city of Contagem need considerable advances in sewerage, so there is a reduction in environmental impacts, and improving water quality in rivers and municipal dam. Keywords: Sewerage, Contagem, Environmental impacts, Environment

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Environmentally Enhanced Turbines for Hydropower Plants: Current Technology and Future Perspective

Frontiers in Energy Research ◽

10.3389/fenrg.2021.703106 ◽

2021 ◽

Vol 9 ◽

Author(s):

Emanuele Quaranta ◽

Juan I. Pérez-Díaz ◽

Pedro Romero–Gomez ◽

Alberto Pistocchi

Keyword(s):

Water Quality ◽

Case Studies ◽

Environmental Impacts ◽

Cost Effective ◽

Energy Generation ◽

Future Perspective ◽

Current Technology ◽

The Past ◽

Hydropower Plants ◽

Improve Water Quality

Environmentally enhanced turbines (EETs) have gained attention in the past two decades in order to reduce environmental impacts of hydropower plants on fish communities and on water quality. In this mini-review the main EETs are discussed, focusing on the Alden and Minimum Gap Runner turbines to reduce fish injury and on self-aerating and self/free-lubricant turbines to improve water quality. The review shows that EETs can be efficiently adopted instead of traditional turbines: EETs are cost-effective, efficient in terms of energy generation and have shown to reduce environmental impacts. Scientific gaps are also highlighted and case studies reported to better support refurbishment and new projects.

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Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality

10.20944/preprints201901.0206.v1 ◽

2019 ◽

Author(s):

Kamalakanta Sahoo ◽

Sudhagar Mani ◽

Adam M. Milewski ◽

Nahal Hoghooghi ◽

Sudhanshu Sekhar Panda

Keyword(s):

United States ◽

Water Quality ◽

Environmental Impacts ◽

Stream Water ◽

The United States ◽

Energy Crops ◽

Yield Potential ◽

Land Resource ◽

Stream Water Quality ◽

Fertilizer Application Rate

Strip-mined land (SML) disturbed by coal-mining is the non-crop land resource that can be utilized to cultivate high-yielding energy crops such as miscanthus for bioenergy applications. However, the biomass yield potential, annual availability and environmental impacts on growing energy crops in SML are less understood. In this study, we estimated the yield potential of miscanthus (Miscanthus sinensis) in SML and its environmental impacts on local streams using the Soil and Water Assessment Tool (SWAT). After calibration and validation of the SWAT model, the results demonstrated that miscanthus yield potentials were 2.6 (0.8−5.53), 10.0 (1.3−16.0) and 16.0 (1.34−26.0) Mg ha-1 with the fertilizer application rate of 0, 100, and 200 kg-N ha-1 respectively. Furthermore, cultivation of miscanthus in the SML has the potential to reduce sediment (~20%) and nitrate (2.5%−10.0 %) loads reaching to water streams with a marginal increase in phosphorus load. The available SML in the United States could produce about 10 to 16 dry Tg of biomass per year without negatively impacting the water quality. In conclusion, SML can provide a unique opportunity to produce biomass for bioenergy applications, while improving stream water quality in highly dense mining area (the Appalachian region) in the United States.

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Environmental Impacts of Mink Manure and Poultry Litter Stockpiling on Air Quality and Water Quality

10.13031/2013.27045 ◽

2009 ◽

Author(s):

Charlotte A Sullivan ◽

Ali Madani ◽

Rob J Gordon ◽

David L Burton ◽

Glenn W Stratton

Keyword(s):

Water Quality ◽

Air Quality ◽

Environmental Impacts ◽

Poultry Litter

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Socio-Economic and Environmental Impacts of Shrimp Culture in Some Selected Areas of Bagerhat District

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v7i1.22181 ◽

2015 ◽

Vol 7 (1) ◽

pp. 265-269 ◽

Cited By ~ 5

Author(s):

S Mitro ◽

R Khatun ◽

MA Baten

Keyword(s):

Water Quality ◽

Soil Quality ◽

Environmental Impacts ◽

Family Income ◽

Ph Value ◽

Economic Status ◽

Shrimp Culture ◽

Socio Economic Impact ◽

Negative Impacts ◽

Soil And Water

Socio-economic and environmental impacts analysis of shrimp (Paeneus monodon) farming in the gher area of Bagerhat District is an important aspect where shrimp cultivation increased over the years. An investigation was conducted to evaluate the present socio-economic status as well as to investigate the soil and water quality of the study area. This study has been carried out at ten villages in five Upazilla (Bagerhat Sadar, Rampal, Mangla, Chitalmari and Fakirhat) of Bagerhat District. The socio-economic impact was investigated using questionnaire survey and environmental impact was assessed by analyzing water and soil quality. The soil and water samples were collected during the period of January to March 2013. Maximum people of this study area were involved in shrimp culture because soil is not suitable for agricultural crops due to high salinity percentage. Annual family income of maximum number (45%) of farmers was greater than 200000 taka per year from shrimp culture. All the soil pH value was neutral to slightly alkaline. Shrimp culture has no noticeable impact on soil quality. On the other hand, shrimp culture has some negative impacts on water quality such as, the range of K and Na in water has been increased and the range of Ca has been decreased than normal range. However, it is very minor compared to annual income from this culture. Therefore, the people of this region may involve more in shrimp culture.DOI: http://dx.doi.org/10.3329/jesnr.v7i1.22181 J. Environ. Sci. & Natural Resources, 7(1): 265-269 2014

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