Winkler's Method for the Determination of Oxygen in Water; the Effect of Nitrite and Its Prevention.

Hale, Frank E.; Melia, Thomas W.

doi:10.1021/ie50060a006

Cited by 2 publications

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“…Among these, phytoextraction and rhizofiltration are the most accepted mechanisms for the removal of heavy metal ions form wastewater. In phytoextraction, impurities are accumulated in shoots and leaves (Gratão et al 2005;Gupta and Sinha 2007), while in rhizofiltration impurities are accumulated in the massive root system of the plant (Hale and Melia 1913).…”

Section: Introductionmentioning

confidence: 99%

The purification of wastewater on a small scale by using plants and sand filter

2021

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The canteen and laboratory of every academic organization need a lot of clean water, and it generates equivalent amount of wastewater every hour which is neither purified nor reused. Due to water scarcity, the recycling and reusing of wastewater become very essential. The present study describes the simple and cost-effective method for the design of a small-scale wastewater treatment plant for the purification of wastewater generated by household, canteen and laboratory of an academic institute. The current study explored the process of phytoremediation by Typha latifolia L. and Canna indica L. for removal of metal ions and phosphate ions from the wastewater. The partially treated water after phytoremediation was further purified by sand filtration. The various water quality parameters (pH, hardness, dissolved oxygen, chemical oxygen demand, turbidity, total dissolved solids and metal ions) of the treated and untreated water were analyzed. It was observed that there are significant reduction in hardness, turbidity and chemical oxygen demand and increase in dissolved oxygen value. The treated water can be reused for various household works and agriculture.

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Section: Introductionmentioning

confidence: 99%