Water quality assessment of Nwangele river in Imo State, Nigeria

Water quality assessment of Nwangele river was undertaken using standard methods. Water samples were drawn from upstream, midstream and downstream of the river and assessed for quality. Results obtained for physicochemical characteristics showed pH (4.83±.0.01-5.00±0.31), total solid (200.00±2.40-613.19±1.10 mg/L), and total suspended solid (49.98±0.11-399.04±2.09 mg/L). Heavy metals found in the river water were iron (0.132±0.01- 0.144±0.02 mg/L), zinc (0.034±0.02- 0.044±0.02 mg/L), mercury (0.004±0.001- 0.011±0.00 mg/L), lead (0.008±0.00- 0.016±0.00 mg/L) and cadmium (0.03±0.01- 0.011±0.00 mg/L). Microbiological studies on the river revealed the presence of Klebsieilla sp., Vibro sp., Pseudomonas sp., Proteus sp., Escherichia sp., Staphylococcus sp., Shigella sp., Bacillus sp., Serratia sp., Citrobacter sp., and Enterobacter sp as bacterial isolates with high total heterotrophic bacteria count (THBC), total coliform count (TCC), Salmonella-shigella count (SSC), and total viable count (TVC). Nwangele River water is acidic, with high total suspended solid, phosphate and microbial loads. It is therefore advisable to purify water from the river before consumption. This study has assessed the water quality of Nwangele river in Imo State, Nigeria

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Zooplankton from can Giuoc River in Southern Vietnam

GeoScience Engineering ◽

10.1515/gse-2016-0022 ◽

2016 ◽

Vol 62 (3) ◽

pp. 27-33 ◽

Cited By ~ 1

Author(s):

Pham Anh Duc ◽

Nguyen Thi Mai Linh ◽

Dang My Thanh ◽

Pham Van Mien

Keyword(s):

Water Quality ◽

Quality Assessment ◽

Inorganic Nitrogen ◽

Oxygen Demand ◽

Total Suspended Solid ◽

Water Quality Assessment ◽

Suspended Solid ◽

Quality Parameters ◽

Species Number ◽

Southern Vietnam

Abstract In this study, the variables of zooplankton and water quality were investigated in the Can Giuoc River, Southern Vietnam. Zooplankton was monitored in April and September 2015 at 5 sampling sites in the river. Some basic water quality parameters were also tested, including pH, total suspended solid (TSS), dissolved oxygen (DO), biological oxygen demand (BOD5), inorganic nitrogen (NH4+), dissolved phosphorus (PO43−), and coliform. The zooplankton biodiversity indices were applied for the water quality assessment. The results showed that pH ranged from 6.7 to 7.6 during the monitoring. The TSSs were between 34–117 mg/L. The DO and BOD5 were from 0.6 to 3.8 mg/L and from 6.3 to 13.2 mg/L, respectively. The NH4+ and PO43− concentrations ranged from 0.44 to 3.23 and from 0.08 to 1.85 mg/L, respectively. The coliform number was between 9.3×103–9.3×104 MPN/100 mL. The zooplankton analyses showed that there were 31 species of coelenterates, rotatoria, oligochaetes, cladocerans, copepods, ostracods, mysidacea, and 8 larval types. Thereof, the species of copepods were dominant in the species number. The zooplankton density ranged from 9 500 to 23 600 individuals/m3 with the main dominant species of Moina dubia (Cladocera), Thermocyclops hyalinus, Acartia clausi, Oithona similis (Copepoda), and nauplius copepods. The biodiversity index values during the monitoring were from 1.47 to 1.79 characteristic of mesotrophic conditions of the aquatic environment. Besides, the species richness positively correlated with pH, TSS, DO, BOD5, NH4+, PO43−, and coliform, while the zooplankton densities got a positive correlation with DO, BOD5, NH4+, PO43−, and coliform. The results confirmed the advantage of using zooplankton and its indices for water quality assessment.

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Design of River Water Quality Assessment and Prediction Algorithm

2018 17th IEEE International Conference on Machine Learning and Applications (ICMLA) ◽

10.1109/icmla.2018.00146 ◽

2018 ◽

Author(s):

Sheng Cao ◽

Shucheng Wang ◽

Yan Zhang

Keyword(s):

Water Quality ◽

Quality Assessment ◽

River Water ◽

Water Quality Assessment ◽

River Water Quality ◽

Prediction Algorithm

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An Overview of River Side Pollutants and their Effects on Physico-Chemical Changes in Water Quality of River Halda, Bangladesh

Asian Journal of Chemistry ◽

10.14233/ajchem.2020.22347 ◽

2020 ◽

Vol 32 (4) ◽

pp. 827-834

Author(s):

Muhammad Towhid Moula ◽

Ranjit K. Nath ◽

Mh. Mosfeka Chowdhury ◽

Md. Abu Bakar Siddique

Keyword(s):

Heavy Metals ◽

Water Quality ◽

Anthropogenic Activities ◽

Oxygen Demand ◽

Aquatic Organisms ◽

Total Suspended Solid ◽

Total Solid ◽

Suspended Solid ◽

Total Alkalinity ◽

Physico Chemical

Halda is an important river of Bangladesh, is now polluted in different ways through industrial, agricultural, domestic and sewage disposal. Increased anthropogenic activities have increased the potential pollution of the river and excessive pollutants may be toxic to humans and aquatic fauna. Presence of heavy metals in the river water causes perilous impact on the aquatic organisms. Hence, regular monitoring of pollution levels in the river is indispensable. In this study, we discuss about physico-chemical assessments of water quality parameters viz. pH, dissolve oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total solid (TS), total suspended solid (TSS), total dissolved substance (TDS), total alkalinity, turbidity, salinity, electrical conductivity (EC), hardness, chloride and heavy metals in the water of Halda river during rainy and winter seasons, at different points; sources of pollutants in water and their effects given starting from the early research until the current research.

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Water Quality Assessment of Sirsiya River

Nepal Journal of Science and Technology ◽

10.3126/njst.v13i2.7727 ◽

2013 ◽

Vol 13 (2) ◽

pp. 141-146 ◽

Cited By ~ 1

Author(s):

Binod Prasad Shah ◽

Bhoj R Pant

Keyword(s):

Water Quality ◽

Quality Assessment ◽

River Water ◽

Water Samples ◽

Industrial Effluent ◽

Water Quality Assessment ◽

Chemical Characteristic ◽

Oil And Grease ◽

Industrial Corridor

The parameters such as temperature, PH, TSS, TDS, ammonia, phenol, cyanide, sulfide, oil and grease, chloride, DO, COD and BOD were taken to assess the water quality of Sirsiya river, central southern Nepal. Water samples were collected from upstream to downstream from the point receiving industrial effluent to Sirsiya river. It receives wastewater burden of more than 250 industries along Bara/Parsa industrial corridor. All the parameters except oil and grease were found within the generic standard. The study revealed that the physic-chemical characteristic of the river water was changing as a result of the discharge of untreated effluents from different industries. This may impact on water quality of Sirsiya river and also pose human health problems. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 141-146 DOI: http://dx.doi.org/10.3126/njst.v13i2.7727

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Are the Days of Field-to-Laboratory Analysis Gone? Effects of Ubiquitous Environmental River Water Quality Assessment

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering - e-Infrastructure and e-Services ◽

10.1007/978-3-319-43696-8_16 ◽

2016 ◽

pp. 142-164

Author(s):

K. B. Goodman Makojoa ◽

Isaac O. Osunmakinde

Keyword(s):

Water Quality ◽

Quality Assessment ◽

River Water ◽

Water Quality Assessment ◽

River Water Quality ◽

Laboratory Analysis

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Water Quality Assessment Klang River Water Treatment Plants

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.35.23075 ◽

2018 ◽

Vol 7 (4.35) ◽

pp. 639

Author(s):

HA Mohiyaden ◽

LM Sidek ◽

G Hayder ◽

MN Noh

Keyword(s):

Water Quality ◽

Water Treatment ◽

Quality Assessment ◽

River Water ◽

Treatment Plant ◽

Water Quality Assessment ◽

Water Quality Monitoring ◽

Quality Standard ◽

Pollutant Removal ◽

Unit Process

The quality of Klang river water is deteriorating dramatically since it is in urban places every day and become one of the major problems. Therefore, the Malaysian government had initiated one river cleaning project named River of Life (ROL) project. This project is for rehabilitating and restoring the Klang river. A series of river water treatment plant (RWTP)s have been operated in Klang river catchment since 2014. Six RWTPs station has been monitored up to eight stations until presents. Eight parameters consisting of physio-chemical types and biological types have been recorded. RWTP effluent discharges are targeted to achieve Malaysia Interim National Water Quality Standard (INWQS) under Class II B. Since previous RWTP performance only emphasized on local river pollutants and certain conditions, this paper will investigate the effectiveness of full-scale RWTP unit process for river condition. Water quality assessment are involved which are consist of effluent water quality monitoring and pollutant removal efficiency. Most of the major pollutants able to be reduced by more than 50% reduction. Although BOD and AN still not able to achieve standard range gazetted by INWQS Class IIB, there is an improvement of river water quality at Klang River by using IFAS technology adopted in the RWTP system.

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