Effect of flow rate on water quality parameters and plant growth of water spinach (Ipomoea aquatica) in an aquaponic recirculating system

Filtration plays vital role to improve the efficacy and reduce the maintenance of drip irrigation systems. The experiment was conducted to evaluate drip irrigation filters (gravel, disk filter and their combination) for groundwater filtration. Water quality parameters responsible for emitter plugging, such as total solids, turbidity, Ca, Mg, CO3 and HCO3 were analyzed at the entry and exit points of filters. The filtration efficiency for water quality parameters was estimated with individual filters and in combination. Significant improvement was observed for turbidity, total solids, carbonate and bicarbonate. The filtration efficiency with combination filter was 14.3±8.8% for turbidity and 16.3±9.31% for bicarbonates. Gravel filter gave better results for filtration of bicarbonate in comparison to the disk filter. Emitters protected by the gravel media filter experienced the largest flow rate reductions but emitters protected by combination filters experienced least flow rate reduction. Backwashing of filters reduces the filtration efficiency and head loss. To reduce emitter plugging by removal of accumulated sediment, flushing of mains, submains and laterals are recommended. Higher improvement in uniformity coefficient was observed in subsurface drip after flushing operation. The results may be utilized in planning and design of subsurface drip irrigation system to diminish emitter clogging incidence.

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Analysis of Detergent Waste Absorption Using Water Spinach (Ipomoea aquatica)

Journal of Science and Science Education ◽

10.29303/jossed.v2i1.483 ◽

2021 ◽

Vol 2 (1) ◽

pp. 17-21

Author(s):

Syarifa Wahidah Al Idrus ◽

R. Rahmawati ◽

Saprizal Hadisaputra ◽

Hilman Qudratuddarsi

Keyword(s):

Water Quality ◽

Experimental Study ◽

Block Design ◽

Quality Parameters ◽

Water Spinach ◽

Detergent Concentration ◽

Methylene Blue Active Substance ◽

Ipomoea Aquatica ◽

Randomized Block Design ◽

Water Plants

This study aims to determine the absorption of water detergent waste using water spinach (ipomoea aquatica). This experimental study used a randomized block design. Water samples were planted with water plants according to the research design. Detergent concentrations were observed using the MBAS (Methylene Blue Active Substance) method. The results showed that water spinach was able to reduce the detergent concentration and improve the concentration of water quality parameters (DO, BOD, and COD). After the treatment of water kangkong, the ability to absorb detergent was seen with a decrease in detergent levels until day 28 of 54.17%. The highest detergent absorption on days 7 and 14.

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Management of Arfak Rainbow Fish Based on Bioecologycal Aspect (Case in Some River in Manokwari)

JURNAL SUMBERDAYA AKUATIK INDOPASIFIK ◽

10.30862/jsai-fpik-unipa.2018.vol.2.no.2.56 ◽

2018 ◽

pp. 119

Author(s):

Mariance Y. Kaliele ◽

Roni Bawole ◽

Irma E Kawulur

Keyword(s):

Water Quality ◽

Chemical Oxygen Demand ◽

Flow Rate ◽

Field Observation ◽

Oxygen Demand ◽

Quality Parameters ◽

Biological Oxygen Demand ◽

Water Quality Parameters ◽

Fish Sample

The aim of this research is to study the bioecological aspect of Arfak Rainbowfish, distribution long-wieght frequency and management of endemic arfak rainbow fish in Manokwari. This study conducted for five months from 7 September 2015 to 9 Januari 2016. Fish sample were collected from Prafi river, Nimbai river and Aimasi river and brought to fisheries laboratory. The method of this research is descriptive methode with field observation. The result of water quality parameters are temperature average 30.01oC±1,06oC, flow rate is slow 0.92±0,12, the pH 7,80±0,12, oxygen solute 5,38±0,24, average biological oxygen demand for Prafi river 4 mg/L, Nimbai river 3.1 mg/L, Aimasi river 5.2 mg/L and chemical oxygen demand for Prafi river 8.3 mg/L, Nimbai river 14.2 mg/L dan Aimasi river 7.4 mg/L. Long-weight relation shows that the growth is alometric negative (b<3). The management that could be done is reboisation and management of catching that should not be done at the time fish is mature or ready to mate.

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Impact of Precipitation and Flow Rate Changes on the Water Quality of a Coastal River

Shock and Vibration ◽

10.1155/2021/6557689 ◽

2021 ◽

Vol 2021 ◽

pp. 1-13

Author(s):

Hassan Pourfallah Koushali ◽

Reza Mastouri ◽

Mohammad Reza Khaledian

Keyword(s):

Water Quality ◽

River Water ◽

Flow Rate ◽

River Flow ◽

Quality Parameters ◽

River Water Quality ◽

Water Quality Parameters ◽

Box Plots ◽

Coastal River

This paper aims to investigate the effects of natural variables, including precipitation and flow rate, on the quality of the Zarjoub River in Guilan province, Iran. The new hydrological insight in this study is a lack of national research focused on the dual effects of rainfall and flow rate on river water quality in coastal areas along the Anzali Wetland. To investigate the effect of precipitation and flow rate on river water quality, nine water quality variables were monitored during the 10-year period. In this article, (a) the existence of trends and the best fitted models of water quality parameters and the discharge and precipitation were analysed using statistical techniques and (b) the relationships between concentration of constituents with the discharge and precipitation on the up-stream and middle station were also examined. Box plots, for explaining the distribution of a data collection, were used. The results showed the existence of trend of water quality parameters with river flow and rainfall. As presented in Section 3, with increasing precipitation and flow rate, concentration of all constituents, except pH and SO₄2, decreased. On the contrary, the maximum amount of water quality elements was observed in low precipitations; therefore, the maximum concentration occurred in less than 15 mm precipitation. Simple regression was used to evaluate the discharge concentration and precipitation concentration. According to the correlation coefficient (r), the relationship between concentration and precipitation is weaker than (0.238) discharge concentration (0.699). The results further showed climate change and river water quality to be related.

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Correlation analysis between microbial fouling resistance, flow rate and water quality parameters

Heat and Mass Transfer ◽

10.1007/s00231-021-03155-1 ◽

2021 ◽

Author(s):

Yilong Zhang ◽

Pengyu Chen ◽

Xia Li ◽

Zhiming Xu

Keyword(s):

Water Quality ◽

Correlation Analysis ◽

Flow Rate ◽

Quality Parameters ◽

Water Quality Parameters ◽

Fouling Resistance

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Assessment of the Ecological Status of OPA Reservoir, ILE IFE, Nigeria Based on a Comparative Study of its Planktonic Community and Water Quality Parameters

Open Academic Journal of Advanced Science and Technology ◽

10.33094/5.2017.2020.41.1.14 ◽

2020 ◽

Vol 4 (1) ◽

pp. 1-14

Author(s):

Adebukola A Adedeji ◽

Taiwo A Adesakin ◽

Oluseun P Bolawa

Keyword(s):

Water Quality ◽

Comparative Study ◽

Ecological Status ◽

Quality Parameters ◽

Water Quality Parameters ◽

Planktonic Community

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Investigation of Some Water Quality Parameters of Pond Water under Mymensingh Municipality

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v8i1.24677 ◽

2015 ◽

Vol 8 (1) ◽

pp. 85-89

Author(s):

F Zannat ◽

MA Ali ◽

MA Sattar

Keyword(s):

Water Quality ◽

Water Samples ◽

Chemical Properties ◽

Pond Water ◽

Quality Parameters ◽

Water Quality Parameters ◽

Urban Region ◽

Mn Toxicity ◽

Ph Values ◽

Drinking Water Standard

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015

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Assessement of Water Quality Parameters in Some Potential Pollutant Areas from Romania

Revista de Chimie ◽

10.37358/rc.18.8.6470 ◽

2018 ◽

Vol 69 (8) ◽

pp. 2045-2049

Author(s):

Catalina Gabriela Gheorghe ◽

Andreea Bondarev ◽

Ion Onutu

Keyword(s):

Water Quality ◽

Surface Water ◽

Surface Water Quality ◽

Quality Parameters ◽

Water Quality Parameters ◽

Quality Data ◽

Chemical Parameters ◽

Water Quality Data ◽

Pollutant Sources ◽

Water Quality Forecasting

Monitoring of environmental factors allows the achievement of some important objectives regarding water quality, forecasting, warning and intervention. The aim of this paper is to investigate water quality parameters in some potential pollutant sources from northern, southern and east-southern areas of Romania. Surface water quality data for some selected chemical parameters were collected and analyzed at different points from March to May 2017.

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Influence of Discharges from Storage Reservoirs on the Tastes and Odours Appearing in the Seine and Marne Rivers

Water Science & Technology ◽

10.2166/wst.1982.0086 ◽

1982 ◽

Vol 14 (4-5) ◽

pp. 43-58 ◽

Cited By ~ 1

Author(s):

M Rizet ◽

J Mouchet

Keyword(s):

Water Quality ◽

Quality Parameters ◽

Water Quality Parameters ◽

Severe Drought ◽

Storage Reservoirs ◽

Metabolite Concentrations

This study was conducted in order to understand the taste and odour problems that occurred in the Seine and the Marne rivers during the severe drought of 1976. Samples were taken every 15 days from several locations in the rivers themselves and from storage reservoirs upstream from Paris. Algae and actinomycetes were identified and counted. Metabolite concentrations were measured. These data were correlated with threshold odor numbers and bacteriological water quality parameters.

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