Faunal assemblages of some saline lakes near Marchagee, Western Australia

1981 ◽  
Vol 32 (1) ◽  
pp. 133 ◽  
Author(s):  
SA Halse
Keyword(s):  
Western Australia ◽  
Saline Lakes ◽  
Salt Lake ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Faunal Assemblages ◽  
Invertebrate Species ◽  
Solids Concentration ◽  
Eastern Australia

Five saline lakes near Marchagee. with salinities ranging from 10-71‰, were sampled every two months between March and September 1979. The lakes contained faunal assemblages of 6-13 invertebrate species; only two species were common to all lakes. Fish (Pseudogobius olorum) were found in one salt lake. Austrochiltonia subtenuis was recorded at a salinity of 71‰ twice the salinity it was previously thought to tolerate. Pseudogobius olorum was collected at a salinity of 55‰ and is the second species of fish to be collected from highly saline Australian lakes. Mytilocypris mytiloides was collected at a total dissolved solids concentration of 45‰ a much higher level of salinity than it tolerates in eastern Australia. Necterosoma pensillatus was found at a salinity of 10.5‰ the lowest yet recorded for the species.

Pinch Technology Approach to Freshwater and Wastewater Minimisation in Brewing Operations

2021 ◽  
Vol 52 ◽  
pp. 102-114
Author(s):  
Oludare Johnson Odejobi ◽  
Emmanuel Oluwasanmi Oyeleke ◽  
Funso Alaba Akeredolu
Keyword(s):  
Chemical Oxygen Demand ◽  
Oxygen Demand ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Solids Concentration ◽  
Cascade Analysis ◽  
Pinch Technology ◽  
Wastewater Samples ◽  
The Cost ◽  
Chemical Oxygen Demand Concentration

The rise in the cost of production of beer due to increasing demand for freshwater and high cost of treating wastewater, motivate research interests in resource management in beer production. This study determines and reduces the concentration of the contaminants in the wastewater samples collected from a brewery in Nigeria, to reduce freshwater demand and to save the cost of operation through wastewater reuse using pinch technology. The wastewater samples were analysed for the concentration of Chemical Oxygen Demand using standard procedures. The Total Dissolved Solids were measured using pH-EC-TDS metre. Water Cascade Analysis was used to evaluate the minimum freshwater demand and wastewater generated to design the maximum wastewater recovery network for minimum freshwater demand in the process. The results showed that for 41.54 t/hr of both the freshwater and wastewater used in the brewery operations, the Chemical Oxygen Demand concentration ranged between 0 – 74,775 ppm and the Total Dissolved Solids concentration ranged from 0 – 2,008 ppm. However, with the application of Water Cascade Analysis, the freshwater and wastewater flow rates reduced to 19.88 t/hr based on Chemical Oxygen Demand concentration and 21.54 t/hr based on Total Dissolved Solids concentration. The freshwater saving per annum based on the concentrations of Chemical Oxygen Demand and Total Dissolved Solids were ₦346,560,000:00 ($962,666.67) and ₦319,840,000:00 ($888,444.44), respectively. The study concluded that the application of Pinch Technology to brewery operation is viable because of its capacity to reduce freshwater demand and wastewater generation.

Conductivity and the concentration of total dissolved soilds in Australian lakes

1966 ◽  
Vol 17 (2) ◽  
pp. 169 ◽  
Author(s):  
WD Williams
Keyword(s):  
Saline Lakes ◽  
Total Dissolved Solids ◽  
Specific Conductance ◽  
Dissolved Solids ◽  
Wide Range ◽  
Lake Waters ◽  
The Relationship

The relationship between specific conductance and concentration of total dissolved solids was investigated in 62 samples from Australian lakes over a wide range of concentration of total dissolved solids (from 0.5 to >200‰). A high correlation was found particularly in highly saline lakes. This suggests that with much greater confidence than elsewhere conductivity determinations may be used in Australia as an indication of the amounts of total dissolved solids in lake waters over a wide range of concentration.

On the Quality of Some Waters on Baffin Island, Northwest Territories

1974 ◽  
Vol 11 (12) ◽  
pp. 1676-1688 ◽  
Author(s):  
Michael Church
Keyword(s):  
Northwest Territories ◽  
River Basins ◽  
Total Dissolved Solids ◽  
Baffin Island ◽  
Seasonal Fluctuations ◽  
Dissolved Solids ◽  
Solids Concentration

In glacierized and nonglacierized river basins in eastern and central Baffin Island, waters are generally very soft (total dissolved solids of order 5–50 mg/l). Diurnal and seasonal fluctuations in dissolved solids concentration are related to runoff characteristics and sources.

Relationship Between Nutrients, Dominant Ions, and Phytoplankton Standing Crop in Prairie Saline Lakes

1985 ◽  
Vol 42 (10) ◽  
pp. 1588-1594 ◽  
Author(s):  
J. F. H. Bierhuizen ◽  
E. E. Prepas
Keyword(s):  
Standing Crop ◽  
Saline Lakes ◽  
Ionic Composition ◽  
Total Dissolved Solids ◽  
Ion Concentration ◽  
Freshwater Lakes ◽  
Empirical Relationships ◽  
Dissolved Solids ◽  
Chl A ◽  
Significant Relationships

We collected data from 20 saline lakes (total dissolved solids from 1000 to 91 000 mg∙L−1) in southeastern Alberta to compare relationships between phosphorus, nitrogen, and phytoplankton standing crop with those in freshwater lakes. In 18 lakes, Na+, Mg2+, SO42−, and HCO3−-CO32− were the dominant ions. In these lakes there was a significant positive correlation between Ca2+ and chlorophyll a (Chl a), and there were significant negative correlations between Chl a and conductivity, pH, Na+, Mg2+, SO42−, HCO3−, and CO32−. When all 20 lakes were considered there were no significant relationships between Chl a and phosphorus or nitrogen. Empirical relationships for freshwater lakes, based on spring or summer total phosphorus (TP) or total nitrogen (TN), overestimated Chl a in all the study lakes. However, in saline lakes with similar ionic composition and TN to TP ratios greater than 12 (by weight), there was a significant positive relationship between TP and Chl a. For the saline lakes with TN to TP ratios greater than 12, the deviations between the Chl a levels predicted from models developed for freshwater lakes and the observed levels were positively correlated with conductivity, total dissolved solids, and Na+ (r2 = 0.78–0.82, P < 0.001). We developed the first empirical model that describes nutrient – Chl a relationships for inland saline lakes. The deviation of measured phytoplankton biomass from that predicted by models developed for freshwater lakes can be explained by conductivity or dominant ion concentration.

scholarly journals Monitoring of Groundwater Quality With Cokriging of Geochemical and Geoelectrical Measurements

2021 ◽  
Vol 4 (1) ◽  
pp. 97-106
Author(s):  
Jarosław Zawadzki ◽  
Piotr Fabijańczyk ◽  
Wiktor Treichel
Keyword(s):  
Groundwater Quality ◽  
Mining Industry ◽  
Total Dissolved Solids ◽  
Hazardous Substances ◽  
Chemical Analyses ◽  
Dissolved Solids ◽  
Geostatistical Methods ◽  
Solids Concentration ◽  
The World ◽  
Copper Mines

Abstract The study presents the possibility of using geostatistical methods for monitoring groundwater quality. Poland is one of the largest copper producers in the world. However, the extraction and production of copper requires constant care for the natural environment. Reservoir Żelazny Most which is situated in South – Western Poland was designed to store flotation tailings out of nearby copper mines. It is one of the biggest industrial dumps in the world. The reservoir stores huge amounts of tailings and industrial water. Water migrating from dump to groundwater could be a potential source of contamination with chlorides, sulphates, heavy metals, and other hazardous substances used in ore separation process in the copper mining industry, like detergent and phenols. Monitoring system around Żelazny Most dump, which was designed to track harmful substances concentrations in groundwater, contains measuring wells and piezometers. They are used to collect groundwater samples for chemical analyses. The idea of the study was to integrate information provided by chemical analyses and geoelectrical measurements by cokriging method, utilizing correlation between electrical resistance of the soil solution and total dissolved solids concentration in groundwater. This enabled to obtain spatial distribution of total dissolved solids concentrations in groundwater at the part of eastern foreground of Żelazny Most dump.

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