000118701 001__ 118701
000118701 005__ 20240319080947.0
000118701 0247_ $$2doi$$a10.1016/j.chemosphere.2022.135587
000118701 0248_ $$2sideral$$a129355
000118701 037__ $$aART-2022-129355
000118701 041__ $$aeng
000118701 100__ $$aUgarte, Patricia
000118701 245__ $$aLow-cost ceramic membrane bioreactor: Effect of backwashing, relaxation and aeration on fouling. Protozoa and bacteria removal
000118701 260__ $$c2022
000118701 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118701 5203_ $$aMembrane biological reactors (MBR) constitute an alternative to conventional wastewater treatments for improved recovery, reuse, and recycling of water. MBRs have a smaller footprint, provide better biotreatment and achieve a high-quality effluent. This work analyses the use of MBRs innovative low-cost ceramic membranes for wastewater treatment. We propose low-cost ceramic membranes as an alternative to the more expensive commercial ceramic membranes. Low-cost membranes were made of clay, calcium carbonate, potato starch, almond shell and chamotte. We synthesized two different selective layers, from clay and/or TiO2. We characterized the membranes (pore diameter and water permeance) and their performance in a laboratory scale MBR. To mitigate membrane fouling and preserve the continued operation along time, the effect of different operating cycles was measured, considering two physical cleaning strategies: relaxation and backwashing. Cycles of 9 min of operation, 30 s of relaxation and 1 min of backwashing provided the lowest fouling rate. We investigated the effect of air scouring on fouling by operating with different air flow rates. Once experimental conditions were optimized, the overall performance of the different ceramic membranes was tested. The membrane with a TiO2 thin layer provided the best resistance to fouling, as well as a good retention capacity of E. coli, Cryptosporidium oocysts and Giardia cysts.
000118701 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/RTC2015-3485-5
000118701 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118701 590__ $$a8.8$$b2022
000118701 592__ $$a1.727$$b2022
000118701 591__ $$aENVIRONMENTAL SCIENCES$$b30 / 275 = 0.109$$c2022$$dQ1$$eT1
000118701 593__ $$aChemistry (miscellaneous)$$c2022$$dQ1
000118701 593__ $$aEnvironmental Chemistry$$c2022$$dQ1
000118701 593__ $$aEnvironmental Engineering$$c2022$$dQ1
000118701 593__ $$aPublic Health, Environmental and Occupational Health$$c2022$$dQ1
000118701 593__ $$aMedicine (miscellaneous)$$c2022$$dQ1
000118701 593__ $$aPollution$$c2022$$dQ1
000118701 593__ $$aHealth, Toxicology and Mutagenesis$$c2022$$dQ1
000118701 594__ $$a13.3$$b2022
000118701 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118701 700__ $$0(orcid)0000-0002-0308-1390$$aRamo, Ana
000118701 700__ $$0(orcid)0000-0001-7831-2483$$aQuílez, Joaquín$$uUniversidad de Zaragoza
000118701 700__ $$aBordes, María del Carmen
000118701 700__ $$aMestre, Sergio
000118701 700__ $$aSánchez, Enrique
000118701 700__ $$0(orcid)0000-0002-8383-4996$$aPeña, José Ángel$$uUniversidad de Zaragoza
000118701 700__ $$0(orcid)0000-0002-2494-102X$$aMenéndez, Miguel$$uUniversidad de Zaragoza
000118701 7102_ $$11009$$2773$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Sanidad Animal
000118701 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000118701 773__ $$g306 (2022), 135587 [7 pp.]$$pChemosphere$$tCHEMOSPHERE$$x0045-6535
000118701 8564_ $$s681659$$uhttps://zaguan.unizar.es/record/118701/files/texto_completo.pdf$$yVersión publicada
000118701 8564_ $$s1801622$$uhttps://zaguan.unizar.es/record/118701/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118701 909CO $$ooai:zaguan.unizar.es:118701$$particulos$$pdriver
000118701 951__ $$a2024-03-18-12:39:57
000118701 980__ $$aARTICLE