Ferric Oxyhydroxide as Fouling Prevention Reagent for Low-Pressure Membranes

Autor:	Marta Litynska, Roman Antoniuk, Nataliia Tolstopalova, Igor Astrelin
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	adsorption colour microfiltration natural organic matter hybrid technology Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Zdroj:	Journal of Ecological Engineering, Vol 20, Iss 3, Pp 77-84 (2019)
Druh dokumentu:	article
ISSN:	2299-8993 22998993
DOI:	10.12911/22998993/99736
Popis:	Membrane technologies are very popular both in drinking water and wastewater treatment due to their significant advantages. However, colloidal fouling is one of the main disadvantages of low-pressure membranes. Fine particle ferric oxyhydroxide effectively protected membrane and adsorb humates, phosphates, arsenates, etc. Dividing of adsorption and microfiltration into two stages was the recommended regime. Mixing with adsorbent was the first one and separation on the membrane was the second stage. The adsorbent with immobilized impurities formed protective layer on the membrane surface. The non-adsorbed organic matter was left on this thickness. During backwash, water flow removed the adsorbent with immobilized pollutants. Afterwards, membrane was as clean as before filtration.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/cd0ed4bcb9114088bf8add3b3190f120 Zobrazit plný text záznamu View record in DOAJ