scholarly journals Plankton Abundance and Physico-chemical Water Quality of Effluent Impacted Waterbodies in Ile-Ife, Nigeria

2017 ◽  
Vol 9 (2) ◽  
pp. 169-176
Author(s):  
Adebukola Adenike ADEDEJI ◽  
Joshua Seun OLAJIDE ◽  
Tolulope Israel ALUKO ◽  
Iysa Olorunshina MUHIBBU-DIN
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Organic Pollution ◽  
Water Bodies ◽  
Nutrient Level ◽  
Domestic Water ◽  
Level Indicator ◽  
Physico Chemical ◽  
Effluent Discharge ◽  
Receiving Stream

An effluent receiving stream and Opa River to which it drains within Obafemi Awolowo University, South-Western Nigeria, were studied to ascertain the level of physico-chemical and biological pollution. Water samples were collected and analysed using various standard methods for planktonic abundance and selected physico-chemical parameters over a period of seven months. Most of the water quality parameters investigated showed statistically insignificant differences between the stream and Opa River, except of conductivity, nitrate and turbidity. Notable parameters were nutrient level indicator parameters (conductivity, nitrate, organic matter, COD and planktonic abundance) whose mean concentrations were higher in the effluent receiving stream than in Opa River. Even more, the seasonal variations of some of the investigated parameters (sulphate, organic matter and conductivity) at both sampled stations revealed the effect of anthropogenic run-off as additional source of dissolved nutrient and chemical enrichment rather than the effluent only. Highest occurrence of Chlorophyceae and abundance of Bacillariophyceae in the studied water bodies revealed a level of organic pollution, while the low occurrence species diversity of copepod, cladocera, diptera and protozoa further connotes the unfavourable physico-chemical condition of the water bodies. However, this effect was observed to be reduced at the point where the stream emptied into Opa River. Hence, the effect of the effluent discharge may not pose a health risk to several rural communities downstream which rely on the receiving water body primarily as their source of domestic water. Nevertheless, due to the level of organic pollution recorded, it could be suggested that the oxidation pond effluent discharge should be treated and/or recycled before discharge into this natural body of water. 

scholarly journals Assessment of the Impact of Small Hydropower Plants on the Ecological Status Indicators of Water Bodies: A Case Study in Lithuania

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 433
Author(s):  
Laima Česonienė ◽  
Midona Dapkienė ◽  
Petras Punys
Keyword(s):  
Water Quality ◽  
Benthic Macroinvertebrates ◽  
Suspended Solids ◽  
Ecological Status ◽  
Fish Abundance ◽  
Water Bodies ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Physico Chemical ◽  
The Impact

Hydropower plants produce renewable and sustainable energy but affect the river’s physico-chemical characteristics and change the abundance and composition of the aquatic organisms. The impact of large HPPs on the ecological conditions of surface water bodies have been extensively studied, but less attention has been paid to environmental impact studies of small hydropower plants (SHPs). The impact of hydropeaking on both the river flow regime and ecosystems has been well-studied for peaking mode plants, mainly medium to large-sized ones. However, for small hydroelectric power plants, and especially for those in lowland rivers, the available information on water quality, benthic macroinvertebrates communities and fish abundance, and biomass is not sufficient. Ten small hydropower plants were selected, and the ecological status of water bodies was assessed in different parts of Lithuania. The studies were performed at the riverbed upstream from the SHPs, where the hydrological regime has not changed, and downstream from the SHPs. It was found that the small hydropower plants do not affect the physico-chemical values of the water quality indicators. This study demonstrated that the total number of benthic macroinvertebrates taxa (TS) is influenced by the concentration of nitrogen and suspended solids, the water flow, the river area, and the current speed; the number of EPT (Ephemeroptera (mayflies), Plecoptera (stoneflies), and Trichoptera (caddisflies)) taxa is influenced by the concentration of nitrogen and suspended solids. The studied indicators do not have a significant impact on biomass. The SHPs affect the fish abundance and biomass. The Lithuanian fish index (LFI) is influenced by the average depth and area of the river. Some SHPs operating in lowland areas may yield somewhat significant hydrograph ramping but more detailed investigation is needed to support the significance of this impact on the biological indices.

scholarly journals Preliminary Study on Physico-Chemical Parameters and Phytoplankton of Chiffa River (Blida, Algeria)

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Fella Hamaidi-Chergui ◽  
Mohamed Brahim Errahmani ◽  
Fatouma Benouaklil ◽  
Mohand Said Hamaidi
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Organic Matter ◽  
Water Samples ◽  
Chemical Parameters ◽  
North West ◽  
Quality Guidelines ◽  
Physico Chemical ◽  
Preliminary Study ◽  
Monthly Variations

The present study was carried out to determine the monthly variations of physico-chemical parameters in water samples from Chiffa river at Blida, North West of Algeria from April to August 2006. Water samples were analyzed for physico-chemical parameters and the results showed their monthly variations as follows: pH 7.5-7.6, electrical conductivity 0.87–1.06 mS·cm−1, nitrate 0–7.00 mg·L−1, nitrite 0–0.28 mg·L−1, ammonia 0–0.03 mg·L−1, phosphate 0–0.94 mg·L−1, sodium 19.3–47.0 mg·L−1, chloride 35.7–52.0 mg·L−1, calcium 90.3–104.7 mg·L−1, magnesium 27.3–37.7 mg·L−1, organic matter 0.4–3.9 mg·L−1, chlorophyll a 0.7–132.3 mg·L−1, and bicarbonate 219.3–248.7 mg·L−1. The analyzed physico-chemical parameters were almost not exceeded the maximum permissible limit of WHO and Algerian Water Quality Guidelines. A total of 53 taxa belonging to 4 divisions have been identified, including Chlorophyta (52.83% of taxa), Bacillariophyta (28.30%), Cyanophyceae (16.98%), and Charophyta (1.89%).

scholarly journals Physico-Chemical Characteristics of Soils under Cacao Production System in Davao de Oro, Philippines

2020 ◽  
Vol 25 (1) ◽  
pp. 115-134
Author(s):  
Nelvin Villason ◽  
Dernie Olguera
Keyword(s):  
Organic Matter ◽  
Production System ◽  
High Water ◽  
Nutrient Level ◽  
Chemical Characteristics ◽  
Deep Soil ◽  
Ph Values ◽  
Fertility Status ◽  
Physico Chemical ◽  
Nutrient Analyses

The study was conducted to understand the physico-chemical characteristics of the soils under cacao production system in Davao de Oro, Philippines. Eight (8) cacao farms were selected for detailed field characterization and sampling of soils for various nutrient analyses. Fertility status of each selected farm was determined by comparing the fertility properties of each soil with the critical nutrient level requirement for cacao. Results showed that most of the soils have a dark brown soil color in the upper horizons, and dark, yellowishbrown in the lower horizons. They range from moderately deep to very deep soil profile (19 to 150 cm), with very friable to extremely firm when moist, slightly sticky to very sticky, and slightly plastic to very plastic when soil consistence is wet. Lower elevations had shallow solum with high water table, resulting in the development of mottles and redoximorphic properties. The amount of clay ranged from 9 to 37%, with 18 to 40% for silt, and 30 to 68% for sand. Most of the cacao farms were intercropped with coconut, durian, lanzones, rubber, and banana. Most of the soils are moderate to slightly acidic, with pH values < 6.5 and CEC ranging from 10 to 34 meq/100g. Moreover, most of the areas have low organic matter (1.66%) except for the areas which continually applied organic matter during fertilization (4.60%). The amount of nitrogen (N) is optimum; however, phosphorus (P) was generally deficient in the soils of most cacao farms surveyed, while amount of potassium (K) ranges from 41.30 to 375.60 mg/kg.

Statistical assessment of seafront and beach water quality of Mumbai, India

2011 ◽  
Vol 64 (5) ◽  
pp. 1186-1193 ◽  
Author(s):  
Ritesh Vijay ◽  
Swapnil R. Kamble ◽  
S. S. Dhage ◽  
R. A. Sohony ◽  
S. R. Wate
Keyword(s):  
Water Quality ◽  
Organic Pollution ◽  
Quality Parameters ◽  
Nonpoint Sources ◽  
Physico Chemical ◽  
Treated Sewage ◽  
Central Pollution Control Board ◽  
Spatio Temporal ◽  
Beach Water Quality

The water quality of seafronts and beaches of Mumbai is under pressure and deteriorating due to discharge of partially treated sewage and wastewater through point and nonpoint sources. The objective of the study was to assess the water quality and to correlate physico-chemical and bacteriological parameters for establishing relationship, association and dependence on each other. The water quality parameters were selected as per SW II standards specified by Central Pollution Control Board, India and nutrient parameters as strong indicators of sewage pollution. Box and whisker plots were generated for evaluating spatio temporal variation of water quality which suggest influence of organic pollution mostly at Mahim and Dadar in the form of outliers and extremes. Pearson's correlations were estimated between parameters and found significant correlation with each other indicating influence of sewage on water quality. The water quality of beaches and seafronts were found unsafe for recreational purposes. The study suggested that designated water quality can be achieved by restricting nonpoint source through improvement in wastewater collection systems, appropriate level of treatment and proper disposal.

scholarly journals Munzur Çayı (Tunceli-Türkiye)’nın Algal Florasının ve Su Kalitesi Değişimi

2018 ◽  
Vol 6 (8) ◽  
pp. 985
Author(s):  
Banu Kutlu ◽  
Burcu Demir
Keyword(s):  
Water Quality ◽  
Organic Pollution ◽  
Chemical Parameters ◽  
Domestic Waste ◽  
Nitzschia Palea ◽  
Phytoplankton Distribution ◽  
Quality Regulation ◽  
Quality Of Water ◽  
Physico Chemical

Phytoplankton distribution and physico-chemical parameters in two stations in Munzur River were determined in the study carried out monthly between February 2015 and January 2016. According to water quality regulation of the supreme, while quality of water is first class property for temperature, pH, oxygen, ammonium nitrate. It is class feature. Also II. The station is in danger of organic pollution due to domestic waste. When the phytoplankton distribution in the region is examined; 84 taxa belonging phytoplankton Chlorophyta (6), Bacillariophyta (54), Cyanobacteria (15), Rhodophyta (1), Ochrophyta (1), Euglenophyta (2), Charophyta (3), Miozoa (2) were detected. In terms of organisms in the phytoplankton Bacillariophyta division was dominant and Cyanobacteria division was subdominant in the two stations. In the phytoplankton, Ulnaria ulna from Bacillariophyta, Nitzschia palea, Bacillaria paradoxa ,Encyonema sp., Navicula sp. and Nitzschia acicularis were mostly found. Lyngbya sp., Spirulina labyrinthiformis, Oscillatoria labyrinthiformis and Oscillatoria mougeotii species beloning to cyanobacteria match to second place in the terms of importance. Chlorophyta, Charophyta and Euglenophyta have not reached important numbers.

scholarly journals Use of local Hydromacrophytes as phytoremediation agent in pond to improve irrigation water quality evaluated by Diatom Biotic Indices

2017 ◽  
Vol 18 (4) ◽  
pp. 1611-1617
Author(s):  
CATUR RETNANINGDYAH ◽  
ENDANG ENDANG ARISOESILANINGSIH ◽  
SETIJONO SAMINO
Keyword(s):  
Water Quality ◽  
Irrigation Water ◽  
Diversity Index ◽  
Water Discharge ◽  
Organic Pollution ◽  
Biotic Indices ◽  
Irrigation Water Quality ◽  
Domestic Activity ◽  
Wiener Diversity Index ◽  
Physico Chemical

Retnaningdyah C, Arisoesilaningsih E, Samino S. 2017. Use of local Hydromacrophytes as phytoremediation agent in pond to improve irrigation water quality evaluated by Diatom Biotic Indices. Biodiversitas 18: 1596-1602. Irrigation water in Indonesia generally has been polluted because of agricultural, industrial and domestic activity. The aims of this research were to determine the effectiveness of phytoremediation models conducted by planting some local Hydromacrophytes in three phytoremediation ponds through a continuous culture system with water discharge about 0.3 L/seconds for improving the irrigation water quality. The quasiexperimental research was conducted in a phytoremediation pond located in Kepanjen District of Malang, East Java Indonesia. The phytoremediation pond was divided into four interconnected sections. Pond 1 and 2 were planted with some of floating leaf and emergent hydromacrophyte, pond 3 was planted by combinations of same plants added with submerged Hydromacrophytes, while pond 4 was container pond to collecting the water as a result of phytoremediation process. The success of phytoremediation process was known from some physico-chemical parameters of water and some of diatom biotic indices (trophic diatom index/TDI, percentage of pollution tolerant value (%PTV), and Shannon Wiener diversity Index) that was found from artificial substrate been installed in the early treatment. The water quality monitoring performed in each part of the ponds after the plants grew steadily. The results showed that planting of Hydromacrophytes can significantly improve the physico-chemical quality of water. This was reflected in the decline value of conductivity (from 188 μS/cm to 182 μS/cm), turbidity (30 NTU become 8 NTU), total suspended solid (TSS) from 31.3 mg/L to be 5.5 mg/L, nitrates (7.5 mg/L to 3.3 mg/L) and dissolved phosphates (from 0.16 mg./L become 0.04 mg/L) and increasing value of dissolved oxygen (DO) in waters from 2.6 mg/L become 2.9 mg/L. Based on biotic indices there were improvement of the water quality from heavily polluted (diversity index 0.91) become moderately polluted (diversity index 2.07), eutrophic (TDI 52) become mesoeutrophic (TDI 38), and from heavily organic pollution (PTV 93%) to be some organic pollution contribute to eutrophication (PTV 38%). Improvement of water quality was effectively occur after passing through the third pond.

scholarly journals Physico-Chemical and Bacteriological Investigation on the River Cauvery of Kollegal Stretch in Karnataka

1970 ◽  
Vol 6 (1) ◽  
pp. 50-59 ◽  
Author(s):  
K Venkatesharaju ◽  
P Ravikumar ◽  
RK Somashekar ◽  
KL Prakash
Keyword(s):  
Water Quality ◽  
River Water ◽  
Anthropogenic Activities ◽  
River System ◽  
Organic Pollution ◽  
Fecal Coliforms ◽  
Cauvery River ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Bacteriological Investigation

Cauvery River is the major river system of south India was studied for 19 prime physicochemicaland 2 bacteriological parameters at six locations of the Kollegal stretch, for a periodof Two years (2006–2008) at monthly intervals. Over the years of time, river has beensubjected to human interference regularly and water quality was to be getting deterioratedprofoundly. Major anthropogenic activities practiced in and around the stretch: agriculture,abstraction of water for irrigation and drinking, washing cloths and utensils, discharging ofsewage waste, sand dredging, boating, fishing, open defecation and religious ritual activitiesalong the stretch were generating serious threat to the biota of the river by altering thephysicochemical and biological concentration of the river system. The seasonal and yearlytrends were discussed to comprehend anthropogenic interferences on the river stretch.Correlation analysis was also been tried in between physico-chemical parameters. The pH,Conductance, Alkalinity and Hardness levels indicate the moderate quality of water. Thevalues of DO, BOD and COD levels indicate the absence of major organic pollution sources.Seasonal and yearly averages of plant nutrients like phosphate, nitrates, potassium and alsosulphates at drain out falls and mixing zones, were not showing any significant variation intheir concentration indicate no sign of problems like eutrophication, which is generally raisedue to agricultural and sewage wastes. The other possibility is that since there are no majorindustries in the project area, the major source of organic pollutants is only the domesticsource. Population density spread over sparsely located villages like Dasanapura and Harlecertainly contributes towards total and fecal coliforms as excreta of the villagers due to lackof toilets in their houses. Thus present study concludes that river water was not polluted; allresults are within permissible limit when compared with Bureau of Indian Standards (BIS)and National River water quality standards.DOI: 10.3126/kuset.v6i1.3310Kathmandu University Journal of Science, Engineering and Technology Vol.6(1) 2010, pp50-59

scholarly journals Determination of the Water Quality Index (NFS WQI) of water bodies in the Huasteca Potosina, Mexico

2021 ◽  
Vol 325 ◽  
pp. 08002
Author(s):  
Hilda Guadalupe Cisneros Ontiveros ◽  
Nahum Andres Medellín Castillo ◽  
Abraham Cárdenas Tristán ◽  
Marisol Castro Cárdenas ◽  
César Arturo Ilizaliturri Hernández ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Sampling Site ◽  
Water Quality Monitoring ◽  
Water Bodies ◽  
Residual Water ◽  
Domestic Water ◽  
Quality Of Water

The water quality of water bodies in Huasteca Potosina was assessed by the National Sanitation Foundation Water Quality Index (NFS WQI) depending on nine water quality parameters include physical, chemical, and biological properties. The water quality obtained at the sampling site 50-90 in the NSF-WQI range shows the medium quality. Results revealed that the Moctezuma River in Tanquian de Escobedo has low water quality with a score of 50, the Tancuilin and Axtla Rivers have good water quality, and the Moctezuma River (Tampamolón Corona), Amajac River, Valles River, Panuco River, Patitos Lagoon, Plan de Iguala Lagoon were all located in medium water quality. This indicates that the water quality of the Huasteca Potosina is irregular, due to the presence of contaminating agents coming from fertilizers, pesticides, domestic water, and residual water from the communities adjacent to the rivers and lagoons, causing an environmental impact to the aquatic ecosystems of the place. However, this research shows the importance of making use of the water quality index in this region, this to relate the environmental impacts responsible for the contamination of surface water and interpret the experimental data of this water quality monitoring to facilitate decision making and consider frequent monitoring of the quality of water bodies in the Huasteca Potosina.

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