scholarly journals Floating PV; an assessment of water quality and evaporation reduction in semi-arid regions

2021 ◽  
Author(s):  
Qasem Abdelal
Keyword(s):  
Water Quality ◽  
Arid Regions ◽  
Agricultural Sector ◽  
Open Water ◽  
Quality Parameters ◽  
Low Carbon ◽  
Solar Panels ◽  
Inclination Angles ◽  
Evaporation Reduction ◽  
Semi Arid

Abstract This work addresses the potential impact on water quality and quantifies the benefit of the low carbon power source of floating solar panels in evaporation reduction when using them on an open water body, such as an agricultural irrigation pond in semi-arid regions. By utilizing agricultural ponds for low carbon energy conversion, and saving precious water through evaporation reduction, the highly vulnerable agricultural sector will be empowered. A pilot size setup is prepared, key water quality parameters were monitored and evaporation quantities in a PV-covered pond are compared to those from an adjacent open water pond used as a control. Several inclination angles for the panels were tested. Results showed no adverse impact on the water quality; on the contrary, there is evidence of improvement particularly in nitrate and chlorophyll concentrations. Moreover, a reduction of ~60% in evaporation was observed; power generation from the floating panels, on the other hand, was statistically similar to that from ground-mounted panels.

scholarly journals In-Situ Water Quality Observations under a Large-Scale Floating Solar Farm Using Sensors and Underwater Drones

2021 ◽  
Vol 13 (11) ◽  
pp. 6421
Author(s):  
Rui L. Pedroso de Lima ◽  
Katerina Paxinou ◽  
Floris C. Boogaard ◽  
Olof Akkerman ◽  
Fen-Yu Lin
Keyword(s):  
Water Quality ◽  
Large Scale ◽  
Water System ◽  
Open Water ◽  
Quality Parameters ◽  
Climatic Conditions ◽  
Water Quality Parameters ◽  
Solar Panels ◽  
Floating Structure

The rapid implementation of large scale floating solar panels has consequences to water quality and local ecosystems. Environmental impacts depend on the dimensions, design and proportions of the system in relation to the size of the surface water, as well as the characteristics of the water system (currents, tidal effects) and climatic conditions. There is often no time (and budget) for thorough research into these effects on ecology and water quality. A few studies have addressed the potential impacts of floating solar panels, but often rely on models without validation with in situ data. In this work, water quality sensors continuously monitored key water quality parameters at two different locations: (i) underneath a floating solar park; (ii) at a reference location positioned in open water. An underwater drone was used to obtain vertical profiles of water quality and to collect underwater images. The results showed little differences in the measured key water quality parameters below the solar panels. The temperature at the upper layers of water was lower under the solar panels, and there were less detected temperature fluctuations. A biofouling layer on the floating structure was visible in the underwater images a few months after the construction of the park.

scholarly journals A Tool for the Evaluation of Irrigation Water Quality in the Arid and Semi-Arid Regions

Agronomy ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 23 ◽  
Author(s):  
Lucia Bortolini ◽  
Carmelo Maucieri ◽  
Maurizio Borin
Keyword(s):  
Water Quality ◽  
Irrigation Water ◽  
Arid Regions ◽  
Irrigation Water Quality ◽  
Semi Arid

scholarly journals Seasonal variation of water quality parameters, clinical and histological observation of some small endangered open water fishes from Mymensingh and Sylhet region

2015 ◽  
Vol 1 (1) ◽  
pp. 95-102
Author(s):  
Md Mamunur Rahman ◽  
Gias Uddin Ahmed ◽  
Md Tawhid Hasan
Keyword(s):  
Water Quality ◽  
Seasonal Variation ◽  
Open Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Histological Observation ◽  
Liver And Kidney ◽  
Gill Lamellae ◽  
Sylhet Region ◽  
Surma River

Seasonal variation of water quality parameters and health condition of some small endangered open water fishes are Baila (Glossogobius giuris), Gutum (Lepidocephalichthys guntea) and Tara baim (Macrognathus aculeatus) was carried out through clinical and histological observation from Kailla beel of Ishargonj upazila, Mymensingh and Surma river, Gobindogonj upazila, Sunamgonj district, Sylhet region for a period of eight months from September 2014 to April 2015. Water quality parameters like water temperature, dissolved oxygen, pH, ammonia, alkalinity, hardness, and nitrate were recorded. Water temperature, pH, alkalinity and hardness were found at unfavorable level for fish in mid November and January. Clinical examinations of the fish were carried out at monthly intervals and any kind of abnormalities were recorded. Clinically it was observed that, fish was affected with fin and tail rot, gill rot, parasitic infestation, nutritional deformities, numerous red spots and patches in lateral and ventral regions, large deep whitish ulcers reached up to deep ulcers especially in December and January in both region. Samples of skin, muscle, gill, liver and kidney were collected and processed for histological observations. Major pathology in the skin and muscle were epidermis separated from dermis, presence of fungal granuloma, vacuums, hemorrhage and necrosis. Loss of primary and secondary gill lamellae, hypertrophy and primary gill lamellae separated, necrosis and hemorrhage were found in the gill. Large vacuums, necrosis and hemorrhage were observed in liver and kidney. Among the affected fish organs skin and muscle, gills were more affected than the internal organs like liver and kidney. Overall, clinical and histological observations of fishes were found to be more affected in December and January. Whereas, in the months of mid February to April, the pathological condition of fish gradually healed up to normal except few vacuums and hemorrhage. Under histopathological observations, fishes of Kailla beel were more affected than the fishes of surma river. In clinical and histopathological observation open water fishes were more susceptible due to EUS.Asian J. Med. Biol. Res. June 2015, 1(1): 95-102

ACCOUNTING FOR THE HUMAN IMPACTS OF OVER-EXPLOITING AQUIFERS WITH DETERIORATING WATER QUALITY IN SEMI-ARID REGIONS

2020 ◽  
Author(s):  
Peter S.K. Knappett ◽  
◽  
Gretchen R. Miller ◽  
Itza Mendoza ◽  
Paulina Farias ◽  
...  
Keyword(s):  
Water Quality ◽  
Arid Regions ◽  
Human Impacts ◽  
Semi Arid

scholarly journals Assessment of water quality in the vicinity of Chini lake, Malaysia

2019 ◽  
Vol 48 (4) ◽  
pp. 1037-1046
Author(s):  
Youssif Hussin Abdusalam ◽  
IM Sujaul ◽  
Md Abdul Karim ◽  
MG Salah ◽  
M Idris Ali ◽  
...  
Keyword(s):  
Water Quality ◽  
Lake Water ◽  
Open Water ◽  
Total Coliform ◽  
Quality Parameters ◽  
Lake Water Quality ◽  
E Coli ◽  
Sanitation Systems ◽  
Domestic Effluent ◽  
Effects Of Land Use

Chini lake water is used as a source of water for domestic, industrial and agriculture. The study was carried out to assess the water quality of the lake and surrounding area. Ten sampling sites were selected representing the open water body in the lake. A total of 14 water quality parameters viz.. temperature, EC, TDS, DO, pH, turbidity. BOD, COD, TSS, PO4, SO4, NH4, NO3 and salinity were measured. The lowest WQI value 77 was recorded at site S4, respectively, which were found to be slightly polluted. Considering the NWQS, temperature 30.04°C, EC 31.42 μS/cm, TDS 19.03 mg/l, NO3 - 0.21 mg/l, SO4 - 0.84 mg/l, PO4 - 0.05 mg/l, TSS 12.03 mg/l and salinity 0.03 ppt are categorized under class I, while DO 6.15 mg/l, pH 6.73, turbidity 4.22 NTU, BOD 1.63 mg/l, COD 19.50 mg/l and NH4-N 0.20 mg/l the lake water quality are categorized under class II. Total coliform was 273, 412, 868, 267, 495, 406, 929, 953, 441 and 398 cfu/100 ml at all S1 - S10 sites, respectively. While E. coli was found 13, 7, 13, 5, 7, 5, 6, 106, 10 and 7 cfu/100 ml, respectively at all S1 - S10 sites. The highest number of both total coliform 953 cfu/100ml and E. coli 106 cfu/100ml were observed at site S8. The sources of coliforms and E. coli pollution were wastes from human and animals and domestic effluent, which might be due to lack of improper sanitation systems and effects of land use from surrounding agricultural area.

Spatial interpolation approach-based appraisal of groundwater quality of arid regions

2019 ◽  
Vol 68 (6) ◽  
pp. 431-447 ◽  
Author(s):  
Kanak Moharir ◽  
Chaitanya Pande ◽  
Sudhir Kumar Singh ◽  
Pandurang Choudhari ◽  
Rawat Kishan ◽  
...  
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Arid Regions ◽  
Crop Yields ◽  
Interpolation Method ◽  
Research Work ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Post Monsoon ◽  
Sodium Percent

Abstract The primary objective was appraisal of groundwater quality during pre- and post-monsoon seasons for irrigation purposes. Good quality groundwater is required for high crop yields in arid regions. A total of 45 samples were collected from wells and analyzed in the laboratory for this research work. Different water quality parameters were determined from these samples, namely electrical conductivity (EC), sodium adsorption ratio (SAR), residual sodium carbonate (RSC), sodium percent (Na%), and permeability index (PI) during the pre- and post-monsoon season. The water types were identified through a Piper-trilinear diagram. Fifty per cent of the water samples of the total basin area fall under the saline category. The local farmers heavily rely on groundwater for the irrigation of crops. Excess use of groundwater for irrigation raises soil salinity. Some parts of the study area are facing serious problems such as loss of crop yields, and low availability of good quality groundwater even for drinking purposes. The results highlight that the study area has a high salinity content (C3) and low sodium (S1). The maps for different water quality parameters were generated using inverse distance weighted (IDW) interpolation method in ArcGIS 10.3 software.

State of well-water quality in Kakua Chiefdom, Sierra Leone

2016 ◽  
Vol 16 (5) ◽  
pp. 1243-1254
Author(s):  
John P. Kaisam ◽  
Yahaya K. Kawa ◽  
Juana P. Moiwo ◽  
Umu Lamboi
Keyword(s):  
Water Quality ◽  
Sierra Leone ◽  
Open Water ◽  
Water Systems ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Critical Parameters ◽  
Well Water ◽  
Drinking Water Standard ◽  
Industrial Sectors

Water is the difference between living and non-living and water for drinking should be pollutant free. Thus, in supplies for urban and rural consumption, water quality is one of the most critical parameters to verify. Well and/or open-water systems are easily liable to anthropogenic contaminations, the source of most water-borne epidemics especially in developing countries like Sierra Leone. This study analyses 10 representative well-water systems for 18 water quality parameters in Kakua Chiefdom of Bo District, Sierra Leone. The study notes that well-water quality parameters such as total dissolved solids (TDS), turbidity, electrical conductivity, coliform and nitrate (NO3−) are fairly high above safe drinking water standard. The incidence of coliform in the well waters is highest in April and that of iron (Fe2+) and nitrate is highest in May. The Dipha Street well is amongst the most contaminated and has the highest scores for TDS, non-faecal coliform and fluoride (F−). Correlation analysis shows an interesting bond among the water quality parameters, ranging from strongly positive (R = 1.0) to strongly negative (R = −1.0). Fe2+ is strongly positively correlated with most of the well-water quality parameters. Irrespectively, the use of contaminated water in domestic and/or agro-industrial sectors could pose various health risks and epidemic outbreaks of different intensities.

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