SOFTWARE FOR CALCULATING A WATER QUALITY INDICATOR SPECIFIC TO THE AMAZON REGION

The quality of the water in the Amazon's reservoirs is of fundamental importance for natural ecosystems, biota, and for the region's population. Maintaining the water quality involves long-term monitoring programs established by the requirements of Brazilian legislation. A web interface may facilitate the use of monitoring results routinely, which allows periodic insertion of previously selected water quality parameters results, to finally provide a simple and direct way to evaluate the water quality. The general objective of this study was to develop a software based on a water quality indicator (WQI) system considering chemical, physical-chemical, and biological parameters evaluated in four seasonal periods in Samuel dam. Multivariate analysis was used to select 10 significant variables (oxidation-reduction potential, dissolved oxygen, total dissolved solids, chlorophyll a, phosphate, Ba, Ca, Fe, Na, and Sn). The web software added innovation to the project, enabling to storage of data from analysis of field-collected samples in an organized and safe way in a database, in addition to speeding up the calculation of the WQI, making it possible to classify the water quality more quickly and accurately.

Download Full-text

Experimental investigation of water quality responses to inorganic pollutants for the establishment of a contamination warning system

Water Science & Technology Water Supply ◽

10.2166/ws.2019.073 ◽

2019 ◽

Vol 19 (7) ◽

pp. 1965-1977

Author(s):

Sukmin Yoon ◽

Seong-Su Kim ◽

No-Suk Park

Keyword(s):

Water Quality ◽

Tap Water ◽

Pure Water ◽

Warning System ◽

Quality Parameters ◽

Water Quality Parameters ◽

Residual Chlorine ◽

Inorganic Pollutants ◽

Oxidation Reduction ◽

Oxidation Reduction Potential

Abstract In this study, batch and simulated pipeline experiments were conducted to investigate the response of water quality parameters (pH, conductivity, residual chlorine, turbidity, total organic carbon, UV 254, and oxidation reduction potential (ORP)) to various concentrations of four inorganic pollutants (Cd, Cr, Mn, and Pb). In addition, the possibility of detecting incidents of contamination in the actual water supply system was evaluated by deriving the response intensities of each factor to the concentrations of the pollutants. As a result, pH and ORP were identified as the major water quality parameters responsive to the four inorganic pollutants in this study. The responses were more intense (more sensitive) in pure water than in tap water. The results of the batch and simulated pipeline experiments for tap water showed almost identical tendencies, except for the second level of Mn injection (concentration 0.5 mg/L).

Download Full-text

Analysis of variation and relation of climate, hydrology and water quality in the lower Mekong River

Water Science & Technology ◽

10.2166/wst.2010.449 ◽

2010 ◽

Vol 62 (7) ◽

pp. 1587-1594 ◽

Cited By ~ 4

Author(s):

Pham Thi Minh Hanh ◽

Nguyen Viet Anh ◽

Dang The Ba ◽

Suthipong Sthiannopkao ◽

Kyoung-Woong Kim

Keyword(s):

Water Quality ◽

Arima Model ◽

Quality Parameters ◽

Water Quality Parameters ◽

Mekong River ◽

Arima Models ◽

Analysis Of Variation ◽

Term Monitoring

In order to determine the influence of climate and hydrology on water quality of the lower Mekong River, the long term monitoring data (from 1985 to 2004) of climatic, hydrological and water quality variables were analyzed. In general, water quality was ‘good’ or ‘very good’ for most of the investigated water quality parameters including DO, pH, conductivity, nitrate, phosphate and total phosphorus. All climatic and hydrological elements as well as most of the water quality parameters varied seasonally. Throughout the 18-year period, only evaporation, water level and TSS showed a significant pertinent trend. ARIMA models results reveal that among climatic and hydrological paremeters, water quality could be effectively predicted from the data of discharge flow and precipitation. The results showed good R2 (≥0.7) estimation between predicted and observed values for TSS, alkalinity and conductivity which are the chemically and biologically conservative parameters. For other water quality parameters such as Ca2 + , Mg2 + , Si, Cl−, NO3−, and SO42−, the predicting results by ARIMA model were reliable in shorter period than the above three mentioned variables.

Download Full-text

Evaluasi Kondisi Lingkungan Akuakultur Pada DAS Tondano Di Kelurahan Ternate Baru Kota Manado

e-Journal BUDIDAYA PERAIRAN ◽

10.35800/bdp.3.1.2015.6952 ◽

2019 ◽

Vol 3 (1) ◽

Author(s):

Dolvinus Wakman ◽

Suzanne L Undap ◽

Indra Salindeho

Keyword(s):

Water Quality ◽

Quality Standard ◽

Quality Parameters ◽

Quality Analysis ◽

Temperature Conductivity ◽

Oxidation Reduction ◽

Oxidation Reduction Potential ◽

Quality Water ◽

Physical And Chemical

In this study, we evaluated the current condition of the environmental conditions of aquaculture on watershed Tondano River in terms of physical and chemical parameters. Determination of sampling points at each station is placed vertically at three predetermined points from the brigde toward the front of the aquaculture, the distance between one point to the next point was ± 50 m; whereas for the analysis of water quality parameters was done using an HORIBA water quality meters type U-536. Determination points were done by purposive sampling which refers to the physiographic location wherever possible in order to represent or describe these waters. The research was carried out for 3 weeks and was done in 3 stages, morning, afternoon and evening. For direct measurement (in situ) was performed once a week at the three points which included parameters pH, temperature, conductivity, DO, Oxidation reduction potential, turbidity, TDS, depth and GPS. Generally, the result of water quality analysis at the aquaculture still in the water quality standard PP No.82 of 2001. Keywords: Evaluation, water quality, water Lake Tondano, Aquaculture

Download Full-text

Dampak Kualitas Air Pada Budi Daya Ikan Dengan Jaring Tancap Di Desa Toulimembet Danau Tondano

e-Journal BUDIDAYA PERAIRAN ◽

10.35800/bdp.3.1.2015.6932 ◽

2019 ◽

Vol 3 (1) ◽

Author(s):

Pilipus A Urbasa ◽

Suzanne L Undap ◽

Robert J Rompas

Keyword(s):

Water Quality ◽

Fish Farming ◽

Quality Standard ◽

Quality Parameters ◽

Quality Analysis ◽

Temperature Conductivity ◽

Oxidation Reduction ◽

Oxidation Reduction Potential ◽

Physical And Chemical

In this study, we determined the current condition of the water quality of Lake Tondano in terms of physical and chemical parameters in a fish farming locations on Lake Tondano of Toulimembet village waters. Determination of sampling points at each station is placed vertically at three predetermined points from the guard house toward the front of the net, the distance between one point to the next point was ± 12 m; whereas for the analysis of water quality parameters was done using an HORIBA water quality meters type U-536. Determination points were done by purposive sampling which refers to the physiographic location wherever possible in order to represent or describe these waters. The research was carried out for 3 weeks and was done in 3 stages, morning, afternoon and evening. For direct measurement (in situ) was performed once a week at the three points which included parameters pH, temperature, conductivity, DO, Oxidation reduction potential, turbidity, TDS, depth and GPS. Generally, the result of water quality analysis at the aquaculture still in the water quality standard PP No.82 of 2001. Keywords: Water Quality, Stick Net Cage, Lake Tondano, Aquaculture

Download Full-text

Considerations of the technological quality assessment of sugarbeet

Sugar Industry ◽

10.36961/si11041 ◽

2011 ◽

pp. 85-89 ◽

Cited By ~ 1

Author(s):

Giorgio Pezzi

Keyword(s):

Quality Parameters ◽

Northern Italy ◽

Glucose Content ◽

Long Term Storage ◽

Interesting Correlation ◽

Technological Quality ◽

Thick Juice

No real improvement in the technological quality of beet has been recorded over the last 15 years in Northern Italy. Among the possible explanations for the quality stagnation is that the traditional formulae cannot correctly differentiate between sugarbeet varieties which produce thick juice of very high purity. This seems to be connected with the role of potassium. The use of a standard purification procedure gives reliable and accurate data which is immediately comparable with the factory data. Research projects on medium/long term storage are currently being performed by Co.Pro.B., Italy, in cooperation with Syngenta and Beta. Up to now the results have shown that storage of sugarbeet in autumn time in northern Italy is possible provided that suitable varieties and proper handling of the roots are employed. Results obtained in the storage trials are reported. Correlations have been found between quality parameters (purity, color and lime salts) of the purified juice with the glucose content of the raw juice. An interesting correlation is reported between purified juice purity and raw juice purity.

Download Full-text

Environmental Impact Evaluation of Istanbul Wastewater Treatment and Marine Disposal Systems

Water Science & Technology ◽

10.2166/wst.1992.0208 ◽

1992 ◽

Vol 25 (9) ◽

pp. 85-92 ◽

Cited By ~ 3

Author(s):

I. Ozturk ◽

T. Zambal ◽

A. Samsunlu ◽

E. Göknel

Keyword(s):

Water Quality ◽

Wastewater Treatment ◽

Environmental Impact ◽

Quality Parameters ◽

Sea Of Marmara ◽

General Evaluation ◽

Marine Outfall ◽

Secondary Stage ◽

Pre Treatment

Metropolitan Istanbul Wastewater Treatment System contains 14 marine outfalls, seven of which include secondary stage biological treatment processes. The others have only mechanical treatment units including bar screens and grit chambers. Only one mechanical pre-treatment and marine disposal system, Yenikapi plant, has been operated since 1988 among these 14 plants and six of them are ready for construction. In this paper, the environmental impact of Yenikapi pretreatment and marine disposal system on the water quality of the Bosphorus and the Sea of Marmara has been investigated. Long term water quality measurements which were performed in pre-and post-dischange applications have been evaluated. Water quality parameters including pH, DO, BODs, TKN, P and total coliforms were measured at various sampling stations around the discharge points. A general evaluation of marine outfall systems to be constructed in the scope of Istanbul wastewater treatment project, on the water quality of the Sea of Marmara and the Bosphorus has been presented.

Download Full-text

First flush effects in an urban catchment area in Aalborg

Water Science & Technology ◽

10.2166/wst.1998.0060 ◽

1998 ◽

Vol 37 (1) ◽

pp. 251-257 ◽

Cited By ~ 20

Author(s):

Torben Larsen ◽

Kirsten Broch ◽

Margit Riis Andersen

Keyword(s):

Water Quality ◽

Catchment Area ◽

Quality Parameters ◽

Average Concentration ◽

First Flush ◽

Storm Events ◽

Urban Catchment ◽

Discharge Measurements ◽

Quality Measurements

The paper describes the results of measurements from a 2 year period on a 95 hectare urban catchment in Aalborg, Denmark. The results of the rain/discharge measurements include 160 storm events corresponding to an accumulated rain depth of totally 753 mm. The water quality measurements include 15 events with time series of concentration of SS, COD, BOD, total nitrogen and total phosphorus. The quality parameters showed significant first flush effects. The paper discusses whether either the event average concentration or the accumulated event mass is the most appropriate way to characterize the quality of the outflow.

Download Full-text

Tap Water Quality: Seasonal User Surveys in Poland

Energies ◽

10.3390/en14133841 ◽

2021 ◽

Vol 14 (13) ◽

pp. 3841

Author(s):

Józef Ober ◽

Janusz Karwot

Keyword(s):

Water Quality ◽

World Literature ◽

Mixed Methods Research ◽

Tap Water ◽

Quality Parameters ◽

Subjective Perception ◽

Quality Of Water ◽

Profit Analysis ◽

Tap Water Quality

Security of supply of water, which meets the quality parameters specified in applicable standards, is now the basis for the functioning of most societies. In addition to climatic, biological, chemical, and physical hazards, it is worth paying attention to consumers’ subjective perception of the quality of tap water supplied in the area of Poland. The article discusses various activities related to water resources management and analyses the results of an evaluation of selected quality parameters of tap water in Poland. A novelty on a European scale here is an examination of the evaluation of these parameters based on potential seasonal differences (spring, summer, autumn, winter). For the first time in the world literature, PROFIT analysis was used to evaluate selected parameters of tap water quality. The aim of the article was to present a model for the evaluation of the parameters of tap water supplied in different seasons of the year in Poland. Due to the complexity of the research aspects, a mixed-methods research procedure was used in which a literature review was combined with a survey and statistical analysis. For the purpose of the survey, an original survey questionnaire called “Survey of customer opinions on selected parameters of tap water supplied in Poland” was developed especially for this study. The conducted research confirmed the adopted hypothesis that the results of evaluation of selected tap water parameters vary depending on the period (spring, summer, autumn, winter) in Poland. The model developed by means of PROFIT analysis makes it possible to highlight to water suppliers the specific quality parameters in particular seasons of the year (spring, summer, autumn, winter), which may improve the quality of water supplied in Poland and thus, in the long-term perspective, increase the level of satisfaction of water recipients and confidence in drinking tap water in Poland.

Download Full-text