CONCENTRAÇÃO DE FÓSFORO PRESENTE NOS RECURSOS HÍDRICOS:
AVALIAÇÃO DO ÍNDICE DE ESTADO TRÓFICO DO BALNEÁRIO DE
QUATÁ-SP

Water can undergo natural physico-chemical changes, but it is often caused by anthropogenic action due to improper disposal of effluent. These changes lead to eutrophication, which results in a high index of nutrients such as phosphorus and nitrogen, leading to vegetation growth. Other consequences may be fish mortality, dark water color of water, strong odor and transfer of pathogens, which endangers population health. The present work had as objective to perform analyzes of total phosphorus in the Municipal Spa of Quatá-SP. The method used for the analyzes was Phosphorus with Reactive Orthophosphate, adapted from the Standard Methods for the Examination of Water and Wastewater and the results were compared with the trophic state classes and the parameters of the legislation. At the end of the analyzes, the values obtained from EIT were considered high, compromising the quality of the water in some points.

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Assessing the water quality of Suva foreshore for the establishment of estuary and marine recreational water guidelines in the Fiji Islands

Water Science & Technology ◽

10.2166/wst.2021.323 ◽

2021 ◽

Author(s):

Praneel Pranesh Lal ◽

Natacha Juste-Poinapen M.S.N. ◽

Johann Poinapen

Keyword(s):

Water Quality ◽

Recreational Water ◽

Recreational Waters ◽

E Coli ◽

Fiji Islands ◽

Physico Chemical ◽

Sampling Programme ◽

Water And Wastewater ◽

River Site

Abstract The Standards for water quality in Fiji defined in the Environment Management Regulations (2007) only relate to effluent discharge into the environment. Urbanisation is contributing to wastewater contamination in receiving estuary and marine recreational waters, thus requiring specific guidelines. To create a baseline for this, a sampling programme with relevant physico-chemical and biological parameters was implemented at 3 sites along the Suva foreshore, for 8 consecutive months, during low and high tides. Analysis was done in triplicates, using standard methods approved for the examination of water and wastewater. In the absence of relevant Fiji guidelines, the results were compared with ANZECC (2000) guidelines for estuary and marine waters. Low DO levels, high COD, TN, NH3, TP, OP and heavy metal concentrations were measured in all 3 sites. For instance, TN and NH3 concentrations as high as 4.44 ±0.99 mg/L and 2.58 ± 0.89 mg/L respectively were recorded in Wailea river (Site 2). The colony counts for the TC, FC and E. coli were in most cases above the limits. These results confirm that wastewater discharges add to the inherent levels of parameters in receiving water bodies and support the need for a specific, robust Fiji standards to better monitor water quality in foreshore areas.

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ANÁLISES DESCRITIVAS E MICROBIOLÓGICAS DAS ÁGUAS MINERAIS ENVASADAS E COMERCIALIZADAS NA REGIÃO METROPOLITANA DE RECIFE-PE.

Ciência e Natura ◽

10.5902/2179460x23622 ◽

2017 ◽

Vol 39 (2) ◽

pp. 272

Author(s):

Amanda Cristiane Gonçalves Fernandes ◽

Lúcio Flávio Moreira Cavalcanti ◽

Marcio Luiz Siqueira Campos Barros ◽

Felisbela Maria Da Costa Oliveira

Keyword(s):

Metropolitan Area ◽

Mineral Water ◽

Microbiological Analysis ◽

Plate Method ◽

Standard Methods ◽

Water And Wastewater ◽

Second Period ◽

Bottled Mineral Water

The paper aims to describe the quality of mineral water marketed by the population of the metropolitan area of Recife-PE in 2015, regarding the microbiological and descriptive analyzes. We analyzed 70 samples of seven different brands of bottled mineral water in the period from January to April and June to August due year. The samples were divided into thirty-five units for both periods, according to Standard Methods for the Examination of Water and Wastewater, by means of testing the presence or absence (P-A) and Pour Plate Method. Regarding the microbiological analysis of samples of the first period in accordance with Resolution 275/2005 brands A, B and C had their departures REJECTED samples and the marks D, E, F and G were APPROVED. In the second period the marks A, B, C, D and E had their departures REJECTED samples and the F and G brands were APPROVED. The percentage shown in the first period indicates 57.14% (APPROVED) and 42, 85% (REJECTED). In the second period the percentage indicates that 28.75% (APPROVED) and 71.42% (REJECTED). That is, in the second period there was obtained a high percentage of water which has been rejected due to the presence of microbiological bacteria.

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Water and health risk assessment in the Aracaju Expansion Zone - SE

Ambiente & sociedade ◽

10.1590/1809-4422asoc20170256r1vu2020l4ao ◽

2020 ◽

Vol 23 ◽

Author(s):

Ana Celia Goes Melo Soares ◽

Rômulo André Santos Silva ◽

Carla Viviane Freitas de Jesus ◽

Roneval Felix Santana ◽

Álvaro Silva Lima ◽

...

Keyword(s):

Health Risk ◽

Local Community ◽

Heterotrophic Bacteria ◽

Well Water ◽

Standard Methods ◽

Shallow Wells ◽

Water And Wastewater ◽

Reducing Bacteria ◽

Microbiological Analyses

Abstract The Aracaju Expansion Zone presents problems related to lack of water in adequate conditions of quantity and quality. The low purchasing power of the local community has led residents to excavate shallow wells in their homes to ensure water supply, the only alternative for domestic consumption, but untreated. The objective of this work was to evaluate the quality of well water and the scenarios of health risk, through microbiological analyses. The collections were carried out in the period from December 2015 to August 2017, according to the methodology established by Standard Methods for the Examination of Water and Wastewater, 21st ed. It was concluded that in the rainy season, the well water presents contamination by coliforms, heterotrophic bacteria, Staphylococcus aureos and sulfite reducing bacteria, while in the dry season most of the samples did not present bacteriological counts

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Drinking water quality in Brazilian urban slums

Ambiente e Agua - An Interdisciplinary Journal of Applied Science ◽

10.4136/ambi-agua.2532 ◽

2020 ◽

Vol 15 (3) ◽

pp. 1

Author(s):

Natasha Berendonk Handam ◽

José Augusto Albuquerque dos Santos ◽

Antonio Henrique Almeida de Moraes Neto ◽

Maria De Fátima Leal Alencar ◽

Caroline Ferraz Ignacio ◽

...

Keyword(s):

Water Quality ◽

Drinking Water ◽

Physicochemical Parameters ◽

Quality Standards ◽

Urban Slum ◽

Drinking Water Quality ◽

Water Quality Standards ◽

Standard Methods ◽

Water And Wastewater

The study analyzed the quality of drinking water used in Brazilian urban slum residences according to the standards established in Brazilian regulations. Bacteriological (n=231) and physicochemical parameters (n=134) were analyzed, as the Standard Methods for the Examination of Water and Wastewater establishes. The results revealed that contaminants in the water consumed, for the most part, exceed the limits of drinking water quality standards, putting the population's health at risk and reinforcing the urgency of the need for public policies.

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Population Health and Quality of Life Measures Designed for Different Purposes

PsycEXTRA Dataset ◽

10.1037/e600602007-009 ◽

2004 ◽

Keyword(s):

Quality Of Life ◽

Population Health ◽

Quality Of Life Measures

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DECOLOURIZATION AND COD REMOVAL OF WASEWATER FROM ETHANOL PRODUCTION PROCESS FROM MOLASSES BY COAGULANTION USING INORGANIC ALUM

Science and Technology Development Journal ◽

10.32508/stdj.v13i3.2146 ◽

2010 ◽

Vol 13 (3) ◽

pp. 92-102

Author(s):

Trung Duc Le

Keyword(s):

Ethanol Production ◽

Oxygen Demand ◽

Cod Removal ◽

Treated Wastewater ◽

Treatment Processes ◽

Physico Chemical ◽

Biological Methods ◽

Treatment Step ◽

Main Material

The industrial production of ethanol by fermentation using molasses as main material that generates large quantity of wastewater. This wastewater contains high levels of colour and chemical oxygen demand (COD), that may causes serious environmental pollution. Most available treatment processes in Vietnam rely on biological methods, which often fail to treat waste water up to discharge standard. As always, it was reported that quality of treated wastewater could not meet Vietnameses discharge standard. So, it is necessary to improve the treatment efficiency of whole technological process and therefore, supplemental physico-chemical treatment step before biodegradation stage should be the appropriate choice. This study was carried out to assess the effect of coagulation process on decolourization and COD removal in molasses-based ethanol production wastewater using inorganic coaglutant under laboratory conditions. The experimental results showed that the reductions of COD and colour with the utilization of Al2(SO4)3 at pH 9.5 were 83% and 70%, respectively. Mixture FeSO4 – Al2(SO4)3 at pH 8.5 reduced 82% of colour and 70% of COD. With the addition of Polyacrylamide (PAM), the reduction efficiencies of colour, COD and turbidity by FeSO4 – Al2(SO4)3 were 87%, 73.1% and 94.1% correspondingly. It was indicated that PAM significantly reduced the turbidity of wastewater, however it virtually did not increase the efficiencies of colour and COD reduction. Furthermore, the coagulation processes using PAM usually produces a mount of sludge which is hard to be deposited.

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Physico-Chemical Assessment of Groundwater Quality of Ahmednagar Industrial Area

Indian Journal Of Applied Research ◽

10.15373/2249555x/apr2014/70 ◽

2011 ◽

Vol 4 (4) ◽

pp. 228-230

Author(s):

Patil S.S Patil S.S ◽

◽

Gandhe H.D Gandhe H.D ◽

Ghorade I.B Ghorade I.B

Keyword(s):

Groundwater Quality ◽

Industrial Area ◽

Physico Chemical ◽

Chemical Assessment

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Physico-Chemical Analysis of Groundwater and Effect of Climatic Change in Angul-Talcher Area

International Journal of Emerging Research in Management and Technology ◽

10.23956/ijermt.v6i12.31 ◽

2018 ◽

Vol 6 (12) ◽

pp. 26

Author(s):

Aliva Bera ◽

D.P. Satapathy

Keyword(s):

Water Resources ◽

Linear Regression ◽

Regression Model ◽

Climatic Change ◽

Linear Regression Model ◽

Ann Model ◽

Quality Of Water ◽

Physico Chemical ◽

Simulation Based

In this paper, the linear regression model using ANN and the linear regression model using MS Excel were developed to estimate the physico-chemical concentrations in groundwater using pH, EC, TDS, TH, HCO3 as input parameters and Ca, Mg and K as output parameters. A comparison was made which indicated that ANN model had the better ability to estimate the physic-chemical concentrations in groundwater. An analytical survey along with simulation based tests for finding the climatic change and its effect on agriculture and water bodies in Angul-Talcher area is done. The various seasonal parameters such as pH, BOD, COD, TDS,TSS along with heavy elements like Pb, Cd, Zn, Cu, Fe, Mn concentration in water resources has been analyzed. For past 30 years rainfall data has been analyzed and water quality index values has been studied to find normal and abnormal quality of water resources and matlab based simulation has been done for performance analysis. All results has been analyzed and it is found that the condition is stable.

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Flouride and Nitrate Status of Some Ground Waters in Chittor District of Rajasthan State (India)

International Journal of Emerging Research in Management and Technology ◽

10.23956/ijermt.v6i9.95 ◽

2018 ◽

Vol 6 (9) ◽

pp. 119

Author(s):

Trapti Sharma ◽

R. P. Nagar ◽

R. C. Gaur ◽

Pooja Gupta ◽

Charanjit Kaur

Keyword(s):

Point Of View ◽

World Health ◽

Indian Council ◽

Standard Methods ◽

Ground Waters ◽

Drinking Waters ◽

Health Organization ◽

Research World ◽

Drinking Purpose

In Rajasthan state the ground waters of some areas like Ramganj-mandi, Morak, Barmer, Jaisalmer, Chittor and Udaipur etc. are susceptible from drinking point of view.To test the quality of groundwater in Chittor district 14, ground water samples were collected from various places and analyzed for pH, E.C., Fluoride and Nitrate parameters by standard methods (A.P.H. A., Washington, USA, 1995). The study revealed that none of the ground waters was found suitable completely from drinking point of view. Some are having electrical conductivity > 1.4 dS/m, some are having pH >8.5, some area having fluoride >1.5 ppm and some are having nitrate>45 ppm. These are the limits of various parameters permitted by various International authorities like Bureau of Indian Standard, Indian Council of Medical Research,world health Organization etc. for drinking waters. So, it is recommended to the residents of above areas to use water for drinking purpose only after reverse osmosis or adopting suitable method of removing excess of Fluoride and Nitrate for drinking water to avoid unwanted pathogenic diseases harmful for human health.

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