Studies on the Effects of Pollution on the Diaton Communities of the St Lawrence River Near

1974 ◽  
Vol 9 (1) ◽  
pp. 135-141 ◽  
Author(s):  
Alauddin Ahmad ◽  
Andrzej Chodorowski ◽  
Pierre Legendre
Keyword(s):  
Chemical Properties ◽  
Water Masses ◽  
Artificial Substrates ◽  
Total Hardness ◽  
Cladophora Glomerata ◽  
Algal Communities ◽  
Ottawa River ◽  
Glass Slides ◽  
Physico Chemical ◽  
St Lawrence River

Abstract A study was conducted to establish the physico-chemical and biological characteristics of two water masses (St. Lawrence and Ottawa) just before they meet near Montreal. The two water masses show marked differences in physico-chemical properties and in the composition of algal communities they support. As compared with that of St. Lawrence River, the water of Ottawa River shows lower values of alkalinity, conductivity, total hardness and chlorides. The value of pH is also slightly lower. But the quantity of Silica and Ammonia present in the Ottawa River is much higher. There is a marked difference in the composition of Algal communities supported by the two water masses. Over 100 species of Diatoms were found to colonize the artificial substrates (glass slides), of which only about 40 species were found to be common in both waters. Some 38 species were found only in St. Lawrence River and another 39 species only in Ottawa River. The two water masses also differed in supporting other groups of algae. Cladophora glomerata was very abundant in Ottawa River, whereas, it was absent or very rare in St. Lawrence River. On the other hand, some members of Zygnemaceae (like Sirogonium sticticum, Spirogyra sp., Mougeotia sp., and Zygnema sp.) were very abundant in St. Lawrence River and very rare in Ottawa River.

Diversity of algal communities in acid mine drainages of different physico-chemical properties

Nova Hedwigia ◽  
2013 ◽  
Vol 97 (1) ◽  
pp. 117-137 ◽  
Author(s):  
Konrad Wołowski ◽  
Łukasz Uzarowicz ◽  
Magdalena Łukaszek ◽  
Barbara Pawlik-Skowrońska
Keyword(s):  
Chemical Properties ◽  
Algal Communities ◽  
Acid Mine ◽  
Physico Chemical

scholarly journals Physico-chemical properties of Seepage stream at Shripur area, eastern Nepal

2013 ◽  
Vol 2 ◽  
pp. 46-54
Author(s):  
Damodar Thapa Chhetry ◽  
Joydeb Pal
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Rainy Season ◽  
Winter Season ◽  
Chemical Properties ◽  
Summer Season ◽  
Total Alkalinity ◽  
Total Hardness ◽  
First Year ◽  
Physico Chemical

Physico-chemical parameters of the Seepage stream of Shripur area were studied for two years from July, 2002 to June, 2004, once in every month at regular intervals. The maximum air temperature was recorded in rainy season during first year (July, 2002 to June, 2003) and second year study period (July, 2003 to June, 2004). Water temperature was maximum in summer and lowest in winter season. Transparency, total alkalinity, total hardness, chloride were maximum in winter season. Free CO2 and BOD was maximum in summer season. The minimum transparency, total alkalinity, total hardness and chloride were recorded in rainy season. DO and pH were maximum in winter and minimum in summer season during the whole study period. Air temperature, water temperature, free CO2, BOD showed positive and significant correlation with each other. Transparency showed positive and significant correlation with pH, DO, total alkalinity, total hardness and chloride. pH showed positive and significant correlation with DO and chloride. Similarly, DO, total alkalinity, total hardness and chloride showed positive and significant correlation with each other. DOI: http://dx.doi.org/10.3126/njbs.v2i0.7489 Nepalese Journal of Biosciences 2 : 46-54 (2012)

scholarly journals Assessment of Groundwater Quality of Ilorin Metropolis using Water Quality Index Approach

1970 ◽  
Vol 12 (1) ◽  
pp. 18-21
Author(s):  
JA Olatunji ◽  
OA Odediran ◽  
RI Obaro ◽  
PI Olasehinde
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Chemical Properties ◽  
Total Hardness ◽  
Physico Chemical ◽  
Index Approach ◽  
Two Samples ◽  
Total Dissolved Solid

Groundwater as a source of potable water is becoming more important in Nigeria. Therefore, the need to ascertain the continuing potability of the sources cannot be over emphasised. This study is aimed at assessing the quality of selected groundwater samples from Ilorin metropolis, Nigeria, using the water quality index (WQI) method. Twenty two water samples were collected, 10 samples from boreholes and 12 samples from hand dug wells. All these were analysed for their physico – chemical properties. The parameters used for calculating the water quality index include the following: pH, total hardness, total dissolved solid, calcium, fluoride, iron, potassium, sulphate, nitrate and carbonate. The water quality index for the twenty two samples ranged from 0.66 to 756.02 with an average of 80.77. Two of the samples exceeded 100, which is the upper limit for safe drinking water. The high values of WQI from the sampling locations are observed to be due to higher values of iron and fluoride. This study reveals that the investigated groundwaters are mostly potable and can be consumed without treatment. Nonetheless, the sources identified to be unsafe should be treated before consumption.KEYWORDS: groundwater, water quality index, potability, physico - chemical, parameter

scholarly journals Physico-Chemical Characterization of Local Tannery Waste Water Before and After Flocculation Treatment

2019 ◽  
Vol 11 (2) ◽  
pp. 77
Author(s):  
Abba Paltahe ◽  
Tsamo Cornelius ◽  
Balkissou Sambo ◽  
Djaoyang Christian ◽  
Téri Téri ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Chemical Characterization ◽  
Ammonium Ion ◽  
Organic Load ◽  
Total Hardness ◽  
Tannery Effluent ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Before And After ◽  
Vegetable Tanning

This paper presents the variation in physico-chemical properties of a local Maroua tannery effluent before and after a flocculation treatment. Tanning is a process that consists of the transformation of the animal skin into leather by using different baths which contain many chemical reagents and produces high quantity of liquid and solid waste. The used water of traditional tannery of Maroua is directly thrown in nature without any pre-treatment posing a potential risk to the environment and human health. Physico-chemical parameters such as temperature, pH and conductivity, Total suspended solids, Total hardness, chlorides, sulfides, nitrates,COD, BOD5 , ammonium ion, dissolve oxygen, turbidity, colour and odour were determined before and after aluminum sulfate powder flocculation treatment for effluents collected from soaking, liming, deliming and vegetable tanning stages of the tannery process. The results obtained showed that most of the physico-chemical parameters are higher than the international standard. The results obtained made it possible to classify these four effluents in order of toxicity as follows: Liming water > vegetable tanning water > deliming water > soaking water. The treatment of these waste waters by flocculation reduces the concentrations of certain pollutant loads such as TSS, turbidity, hardness, COD, BOD5, sulfate; but remains less effective on others such as nitrate, chloride and ammonium ion (8%). There is also a decrease in pH, an increase in dissolved oxygen and conductivity. The flocculation treatment thus considerably reduced the toxicity of these effluents, especially its organic load.

scholarly journals Impact of Industrial Effluent Discharge on the Physico-chemical Properties of Aleto Stream, Eleme, Rivers State, Nigeria

2020 ◽  
pp. 79-89
Author(s):  
S. L. Gbarakoro ◽  
T. N. Gbarakoro ◽  
W. L. Eebu
Keyword(s):  
Electrical Conductivity ◽  
Industrial Effluent ◽  
Chemical Properties ◽  
Oxygen Demand ◽  
Total Hardness ◽  
Permissible Limits ◽  
Physico Chemical ◽  
Effluent Discharge ◽  
Rivers State ◽  
The Impact

Aim: This research work aimed to determine the impact of industrial effluent discharge on the physicochemical properties of Aleto Stream, Eleme and Rivers State. Study Design: Random sampling technique was applied in this study. The study area was divided into three sites; upstream, downstream all of Aleto Stream and Agbonchia Stream which serves for the control experiment. Water samples for eleven physical and six chemical parameters were collected in a Completely Randomized Design. Place and Duration of Study: This study was carried out on Aleto and Agbonchia streams at Eleme, Rivers State, Nigeria from 2017 to 2018. Methodology: Two samples were collected; one sample at the Aleto stream where the industrial effluent is being channelled into the stream and the other sample was collected from Agbonchia stream, which was used as a control. In the Aleto Stream, sampling was made at two points; point A (upstream) point B (downstream) and each of these points had their Physico-chemical properties tested while only one sample was collected from the Agbonchia Stream. Physico-chemical properties were analyzed in the samples using pH meter for pH, Turbidity meter for turbidity, Conductivity meter for electrical conductivity, phosphate by colourimetric method, total dissolved solids (TDS) and total suspended solids (TSS) by gravimetric method, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) by standard method, chloride, alkalinity, dissolved oxygen (DO), calcium hardness, total hardness by titrimetric method, colour, odour and taste by sensory method. Results: Results obtained on the Physico-chemical properties had varying concentrations of Temperature, Total hardness, Chloride, Alkalinity, DO and Phosphate that were within world health organization (24)  and Federal Ministry of Environment (1991) permissible limits on both upstream and downstream with values ranging from 29.0-23.7oC, 360-125 mg/l, 120-100 mg/l, 36-30 mg/l, 4.9-4.4 mg/l, 1.92-1.2 mg/l respectively while Electrical conductivity, Turbidity, TSS, TDS, Calcium hardness, COD, BOD, Colour, Taste and Odour were above permissible limits on both upstream and downstream with values ranging from 1660-1700 mg/l, 83-112NTU, 82-80 mg/l, 910-914 mg/l, 1590-1900 mg/l, 100-165 mg/l, 4.36-3.88 mg/l respectively. The pH values ranged from 9.0-6.3 mg/l showing a result on the upstream to be alkaline while the downstream was slightly acidic. The increase in the above parameters above their permissible limits is as a result of the impact of industrial effluent discharges drained into the stream. This indicates that the stream is unfit for both human and aquatic inmates. Conclusion: Therefore, proper management of this effluent should be ensured and an acute test with lethal concentration (LC50) as the endpoint is recommended to determine the degree of toxicity of the effluent waste.

Water Quality Status of Some Urban Ponds of Lucknow, Uttar Pradesh

1970 ◽  
pp. 67-73 ◽  
Author(s):  
Mohd Muzamil Bhat ◽  
Taiyyaba Yazdani ◽  
Kamini Narain ◽  
Mohammad Yunus ◽  
Ravinder Nath Shukla
Keyword(s):  
Chemical Properties ◽  
Uttar Pradesh ◽  
Total Hardness ◽  
Residual Chlorine ◽  
Sources Of Pollution ◽  
Physico Chemical ◽  
Urban Ponds ◽  
Chemical Restoration ◽  
Permissible Levels ◽  
The City

This study aims to investigate the physico-chemical properties of some urban ponds in the ecological system of Lucknow which is called as the city of Nawabs in U.P. But owing to the unplanned development and urbanization, the ponds of this city are struggling for their existence. Inspite of the global alarm for restoration of the water bodies, the ponds in the city are facing neglectance. For the study period ten ponds were selected. The physico-chemical parameters of the water sampled in June 2008 from ten ponds such as PH ranged from 6.55 to 7.93; Turbidity, 6.06 NTU to 8.59 NTU; Conductivity, 12.32 ms/cm to 16.84 ms/cm; D.O., 3.72 mg/l  to 6.81 mg/l; B.O.D., 3.77 mg/l to 6.40 mg/l. Residual chlorine was detected only in pond A (1.09 mg/l), pond C (1.13 mg/l), pond E (1.04 mg/l) and in pond F (1.03 mg/l). Free CO2 was found  between 8.7 mg/l to 19.68 mg/l. TS, TDS, and Chlorides were found much beyond the permissible levels. Alkalinity ranges between 202.55 mg/l to 310.05 mg/l; Acidity between 10.75 mg/l to 15.48 mg/l; Total Hardness between 244.49 mg/l to 254.78 mg/l. Prominent sources of pollution are the domestic sewage, kitchen flow and street runoff etc. In addition, solid waste and garbage tied in polythene bags are recorded along the banks and also floating on the water surface. Key words: Lucknow; physico-chemical; restoration; sewage; Urban pondsDOI: 10.3126/jowe.v2i1.1866 Journal of Wetlands Ecology, (2009) vol. 2, pp 67-73

scholarly journals Physico-chemical properties of water and soil of Bhimsen Pokhari Wetland, Jhapa District, Eastern Nepal

2017 ◽  
Vol 7 (1) ◽  
pp. 72-76
Author(s):  
Krishna Prasad Bhattarai ◽  
Prem Kumar Shrestha ◽  
Omkanta Koirala
Keyword(s):  
Dissolved Oxygen ◽  
Sandy Loam ◽  
Sampling Site ◽  
Chemical Properties ◽  
Life Forms ◽  
Middle Part ◽  
Total Hardness ◽  
Wetland Soil ◽  
North West ◽  
Physico Chemical

The functioning of an aquatic ecosystem and its stability support life forms, depend to a great extent on the physico-chemical characteristics of its water and soil. Physico- chemical properties of water and soil were determined in Bhimsen Pokhari wetland of Jhapa districts, eastern Nepal. Soil samples were collected from six sampling sites and analyzed triplicate for each samples. In all sampling site had sandy loam type of soil texture. The proportion of sand showed a marked increase from middle part to corner but clay decrease from middle to corner of the wetland. The acidic nature of soil increased from corner to middle part of the wetland. Soil organic carbon of wetland was higher in the middle part (2.31%) and lower in the North-west corner (1.72%). The result of water analysis showed that the middle part of wetland was slightly acidic than other sampling sites. From the same sampling sites the dissolved oxygen (5.81 mg L-1), total hardness of water (36 ppm) were found higher than other sampling sites. Dissolved oxygen was negatively correlated with the water temperature and pH but positive correlation with the total hardness of water. In conclusion, the middle part of the wetland may be the suitable site for the growth and development of aquatic flora and fauna as well as microbial activities due to having the higher amount of dissolved oxygen and soil organic matter.

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