Natural organic matter and sulphate elimination from rainwater with nanofiltration technology and process optimisation using response surface methodology

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Özet

In the current study, the effect of operating conditions including membrane characteristics and applied pressure on natural organic matter and sulphate removal of nanofiltration (NF) membranes for drinking water production was investigated. Water stress has been increasing all over the world due to population growth, climate change, and pollution; rainwater management stands out as one of the key solutions to this problem. Nanofiltration to treat rainwater stored in a cistern was studied. The objectives were sufficient treatment performance to overcome the taste problem and lower energy consumption. In this regard, three commercial nanofiltration membranes (NP010, NP030, and NF90) were used for the experiments carried out at 6-12 bar operating pressure regarding the response surface methodology. The correlation among the results of experiments and the model parameters were also calculated for all steps. According to the results, the effect of membrane characteristics was more abundant than the effect of the operating pressure. Finally, over 99% of natural organic matter and sulphate were eliminated in the optimum conditions. The results showed that it is possible to obtain treated rainwater with desired qualities, in a non-continuous NF plant operated at the pressure of 6 bar to reuse the rainwater and achieve water sustainability.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)580-594
Sayfa sayısı15
DergiWater Science and Technology
Hacim83
Basın numarası3
DOI'lar
Yayın durumuYayınlandı - 1 Şub 2021

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Publisher Copyright:
© 2021 The Authors Water Science & Technology | 83.3 | 2021

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