Tratamento de efluentes domésticos por sistemas integrados de lodos ativados e membranas de ultrafiltração visando o reúso de água.

Costanzi, Ricardo Nagamine

doi:10.11606/t.3.2007.tde-09012008-103236

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The use of water combined with its high consumption in industry has led this segment to seek internal reuse alternatives and to consider the purchase of treated effluents from sanitation companies at prices lower than those of drinking water [13]. In this sense, Hespanhol [14] Parameter Variation range…”

Section: Water Reuse In Industrymentioning

confidence: 99%

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Membrane Technology and Water Reuse in a Dairy Industry

Galvão¹

2018

Technological Approaches for Novel Applications in Dairy Processing

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The dairy industry uses substantial amount of water to achieve the production process, especially for the maintenance of hygiene and cleanliness conditions. With this, is generating considerable volume of wastewater requiring treatment to meet the discharge standards before discarded? With the shortage of water resources and charging for water use, minimizing water consumption in industries is of paramount importance to maintain its market competitiveness. In this sense, there has been increasing interest in the reuse of wastewater, in order to decrease the good water consumption by processes that do not require such high quality feature. Membrane separation processes are highlighted in generating good-quality reuse water that can meet the demand of various industrial processes. Thus, the present study aimed to evaluate the membrane separation processes for the treatment of dairy industry effluent to reuse.

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Section: Water Reuse In Industrymentioning

confidence: 99%

“…It is also worth mentioning three categories of reuse water for industry that offer great possibilities of reuse: reuse water in cooling towers and lakes, open cycle (cooling) systems and process, and boiler feed [13].…”

Section: Reuse Of Treated Effluentsmentioning

confidence: 99%

Membrane Technology and Water Reuse in a Dairy Industry

Galvão¹

2018

Technological Approaches for Novel Applications in Dairy Processing

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Reúso de água em sistemas aeroportuários utilizando o processo de ultrafiltração.

Rodrigues¹

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ABSTRACThe excessive demand for water associated with intense population growth, principally in large urban centers, has significantly compromised water resources and transformed the situation in many regions to a scarcity status. Faced with this scenario, it is of great relevance to adopt measures that promote the conservation of water, through various activities and uses. In this context, rational water use and water reuse are measures that should be considered to tackle the induced shortage. In the case of water reuse, it is possible to use effluents, treated or untreated, as an alternate source for uses that have less stringent quality standards. This in turn, preserves the higher quality water for more demanding water uses, such as human consumption. In this study, we evaluated the technical feasibility of the use of secondary effluents, subjected to ultrafiltration membrane treatment (hollow fiber), to meet the non-potable demands of airport systems. The study was conducted with a pilot plant membrane, installed and operated at the sewage system discharge at the International Airport of São Paulo/GuarulhosGovernor André Franco Montoro. Specific tests were conducted to establish optimum operation conditions: 0.9 bar (90 kPa) of pressure, a backwash frequency of 40 minutes, a cleaning frequency of 200 hours, and a recovery rate maintained around 70%. The system performance with respect to contaminant removal was evaluated by determining the percent removal of color, turbidity, BOD5, 20, COD, dissolved organic carbon, UV Absorbance (254 nm), and coliform, which yielded removals of 89%, 99%, 70%, 78%, 80%, 36%, and 100%, respectively. Based on analysis results, it was concluded that the water produced by the membrane system has the potential to supply the following non-potable uses: irrigation of green areas, discharges in toilets and urinals, floor washing, and firefighting reserves. As the water produced by the membrane system had high concentrations of ammoniacal nitrogen, phosphate, and organic matter, a more detailed study is recommended before using the effluent in cooling towers.

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Tratamento de efluentes domésticos por sistemas integrados de lodos ativados e membranas de ultrafiltração visando o reúso de água.

Cited by 2 publications

References 6 publications

Membrane Technology and Water Reuse in a Dairy Industry

Membrane Technology and Water Reuse in a Dairy Industry

Reúso de água em sistemas aeroportuários utilizando o processo de ultrafiltração.

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