Characterization, Identification and Confirmation of Total Dissolved Solids as Effluent Toxicants

McCulloch, WL; Goodfellow, William L.; Black, Jeffrey A.

doi:10.1520/stp13156s

Cited by 28 publications

(32 citation statements)

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“…These TDS concentrations automatically influenced the quality of the received waterbody. Elevated TDS can be toxic to freshwater animals by causing osmotic stress and affecting the osmoregulatory capability of the organisms (McCulloch et al, 1993).…”

Section: Resultsmentioning

confidence: 99%

Impact of discharge wastewater effluents on the physico-chemical qualities of a receiving watershed in a typical rural community

Igbinosa

Okoh

2009

Int. J. Environ. Sci. Technol.

179

129

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ABSTRACT:The qualities of the treated final effluents of a wastewater treatment plant located in a rural community of the Eastern Cape Province of South Africa were assessed over the duration of 12 months. Parameters measured include pH, temperature, electrical conductivity, salinity, turbidity, total dissolved solid, dissolved oxygen, chemical oxygen demand , nitrate, nitrite and orthophosphate levels and these were simultaneously monitored in the treated final effluents and the receiving watersheds using standard methods. Unacceptably, high levels of the assayed parameters were observed in many cases for chemical oxygen demand (7.5-248.5 mg/L), nitrate (1.82-13.14 mg/L), nitrite (0.09-1.3 mg/L), orthophosphate (0.07 -4.81 mg/L), dissolved oxygen (4.15-11.22 mg/L) and turbidity (3.68-159.06 NTU) during the study period and are severally outside the compliance levels of the South African Guidelines and World Health Organization tolerance limits for effluents intended for discharge through public sewers into receiving watersheds. The study has revealed that there was an adverse impact on the physico-chemical characteristics of the receiving watershed as a result of the discharge of inadequately treated effluents from the wastewater treatment facility. This poses a health risk to several rural communities which rely on the receiving water bodies primarily as their sources of domestic water. There is need for the intervention of appropriate regulatory agencies to ensure production of high quality treated final effluents by wastewater treatment facilities in rural communities of South Africa.

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Section: Resultsmentioning

confidence: 99%

Impact of discharge wastewater effluents on the physico-chemical qualities of a receiving watershed in a typical rural community

Igbinosa

Okoh

2009

Int. J. Environ. Sci. Technol.

179

129

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“…The concentration and composition of TDS in natural waters is determined by the geology of the drainage, atmospheric precipitation and the water balance (evaporation-precipitation) 16 . For freshwater animals, TDS toxicity is a result of osmotic stress and its impacts on the osmoregulatory capability of the organism 17 .…”

Section: Physicochemical Parametersmentioning

confidence: 99%

Mouthpart deformities in non-biting midge larvae from a cadmium contaminated stream in Northern Thailand

Weeraprapan¹,

Chantara²,

Kawashima³

et al. 2018

ScienceAsia

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Deformities in the mouthparts of non-biting midge larvae, particularly in the teeth of the mentum, were studied in cadmium polluted areas in Mae Tao Stream, Mae Sot District, Tak Province, Northern Thailand. Non-biting midge larvae were sampled together with water and sediment from 4 study sites: sites MT1 and MT2 were upstream to a zinc mine and unpolluted by cadmium; sites MT3 and MT4 were downstream and polluted with cadmium. From the water temperature, pH, electrical conductivity, total dissolved solids, dissolved oxygen, nitrate-nitrogen, ammonia-nitrogen, and orthophosphate, the stream water quality was classified as moderately clean. The cadmium concentrations MT3 and MT4 exceeded the European maximum permissible level of 3.0 mg/kg for agricultural soil. A total of 3067 larvae and 21 taxa representing 3 subfamilies (Chironominae, Orthocladiinae, and Tanypodinae) from the four sampling sites were screened for mentum deformities. The results indicated that the deformity incidence of larvae was 5% at MT3 and MT4 and 0.20% at MT1 and 0.75% at MT2. Hence the mouthpart deformities of non-biting midge larvae could be potentially used as a bio-indicator for cadmium pollution.

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“…The concentration and composition of TDS in natural waters is determined by the geology of the drainage, atmospheric precipitation and the water balance (evaporationprecipitation) [11]. For freshwater animals, TDS toxicity is a result of osmotic stress and its impacts on the osmoregulatory capability of the organism [12]. The concentrations of dissolved oxygen (DO) were 7.24 to 7.67 mg L -1 .…”

Section: A Physico-chemical Parametersmentioning

confidence: 99%

Water Quality Monitoring and Cadmium Contamination in the Sediments of Mae Tao Stream, Mae Sot District, Tak Province, Thailand

Weeraprapan¹,

Phalaraksh²,

Chantara³

et al. 2015

IJESD

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Characterization, Identification and Confirmation of Total Dissolved Solids as Effluent Toxicants

Cited by 28 publications

References 0 publications

Impact of discharge wastewater effluents on the physico-chemical qualities of a receiving watershed in a typical rural community

Impact of discharge wastewater effluents on the physico-chemical qualities of a receiving watershed in a typical rural community

Mouthpart deformities in non-biting midge larvae from a cadmium contaminated stream in Northern Thailand

Water Quality Monitoring and Cadmium Contamination in the Sediments of Mae Tao Stream, Mae Sot District, Tak Province, Thailand

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